508  
FNUS51 KBOX 210810  
FWFBOX  
 
FIRE WEATHER PLANNING FORECAST FOR SOUTHERN NEW ENGLAND  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
409 AM EDT TUE MAY 21 2024  
   
DISCUSSION
 
 
HIGH PRESSURE BUILDS OFF THE MID ATLANTIC COAST TODAY, WHILE LOW  
PRESSURE SLIDES INTO NORTHERN NEW ENGLAND. FAR NORTHWESTERN  
PORTIONS OF THE INTERIOR COULD SEE A SPOT SHOWER OR RUMBLE OF  
THUNDER THIS AFTERNOON. THE HIGH REMAINS PLANTED TO OUR SOUTHEAST  
ON WEDNESDAY.  
 
MINIMUM RELATIVE HUMIDITIES OF 40 TO 70 PERCENT TODAY. ON  
WEDNESDAY, MINIMUM RELATIVE HUMIDITIES RANGE FROM 35 TO  
70 PERCENT.  
   
OUTLOOK...THURSDAY THROUGH MONDAY
 
 
A COLD FRONT BRINGS SCATTERED SHOWERS AND THUNDERSTORMS ON  
THURSDAY. A FEW COULD BE STRONG TO SEVERE. DRIER, BUT STILL MILD  
ON FRIDAY. UNSETTLED WEATHER RETURNS FOR THE WEEKEND INTO EARLY  
NEXT WEEK. THOUGH NO WASHOUTS ARE ANTICIPATED OVER THE WEEKEND.  
 
MAZ015-212000-  
SUFFOLK MA-  
INCLUDING THE CITIES OF BOSTON, CHELSEA, REVERE, AND WINTHROP  
409 AM EDT TUE MAY 21 2024  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY PCLDY MCLEAR  
PRECIP TYPE NONE NONE NONE  
CHANCE PRECIP (%)  
TEMP (24H TREND) 85 (+21) 60 (+9) 89  
RH % (24H TREND) 46 (-20) 90 (-10) 40  
20FT WND AM(MPH) S 5 SW 7  
20FT WND PM(MPH) S 7 SW 8 SW 8  
PRECIP AMOUNT 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT (FT-AGL) 4150 480 6240  
TRANSPORT WND (KTS) SW 11 SW 13 SW 15  
VENT RATE (KT-FT) 45650 6240 93600  
MAX ADI EARLY 22 FAIR 25 FAIR 49 GEN GOOD  
MAX ADI LATE 45 GEN GOOD 14 GEN POOR 92 GOOD  
MAX LVORI EARLY 2 4 1  
MAX LVORI LATE 2 4 1  
MIN VSBY EARLY  
MIN VSBY LATE  
SUNSHINE HOURS N/A N/A N/A  
CWR 0 0 0  
LAL NO TSTMS NO TSTMS NO TSTMS  
HAINES INDEX 4 4 5  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7
 
   
WEDNESDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE MID 60S. SOUTHWEST  
WINDS 5 TO 10 MPH.    
THURSDAY
 
MOSTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE  
MID 80S. SOUTHWEST WINDS 5 TO 10 MPH.    
THURSDAY NIGHT
 
MOSTLY CLOUDY WITH SHOWERS LIKELY AND A CHANCE  
OF THUNDERSTORMS. LOWS IN THE LOWER 60S. SOUTHWEST WINDS 5 TO  
10 MPH.    
FRIDAY
 
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. WEST WINDS 5 TO  
10 MPH.    
FRIDAY NIGHT
 
MOSTLY CLEAR. LOWS AROUND 60. WEST WINDS 5 TO  
10 MPH.    
SATURDAY
 
MOSTLY SUNNY. HIGHS IN THE LOWER 70S. NORTHWEST WINDS  
AROUND 5 MPH, BECOMING EAST IN THE AFTERNOON.    
SATURDAY NIGHT
 
MOSTLY CLOUDY. LOWS IN THE UPPER 50S. SOUTHEAST  
WINDS 5 TO 10 MPH.    
SUNDAY
 
MOSTLY SUNNY. HIGHS IN THE UPPER 60S. EAST WINDS 5 TO  
10 MPH.    
SUNDAY NIGHT AND MONDAY
 
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE MID 50S. HIGHS IN THE UPPER 60S. SOUTHEAST  
WINDS 5 TO 10 MPH.  
 

 
 
MAZ016-212000-  
EASTERN NORFOLK MA-  
INCLUDING THE CITIES OF BRAINTREE, MILTON, QUINCY, AND WEYMOUTH  
409 AM EDT TUE MAY 21 2024  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY PCLDY MCLEAR  
PRECIP TYPE NONE NONE NONE  
CHANCE PRECIP (%)  
TEMP (24H TREND) 83 (+18) 58 (+8) 86  
RH % (24H TREND) 47 (-21) 90 (-10) 43  
20FT WND AM(MPH) S 5 SW 7  
20FT WND PM(MPH) S 7 SW 8 SW 7  
PRECIP AMOUNT 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT (FT-AGL) 3500 410 5150  
TRANSPORT WND (KTS) S 12 SW 13 SW 15  
VENT RATE (KT-FT) 42000 5330 77250  
MAX ADI EARLY 23 FAIR 20 GEN POOR 49 GEN GOOD  
MAX ADI LATE 39 FAIR 14 GEN POOR 83 GOOD  
MAX LVORI EARLY 2 5 1  
MAX LVORI LATE 2 5 1  
MIN VSBY EARLY  
MIN VSBY LATE  
SUNSHINE HOURS N/A N/A N/A  
CWR 0 0 0  
LAL NO TSTMS NO TSTMS NO TSTMS  
HAINES INDEX 4 4 4  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7
 
   
WEDNESDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE LOWER 60S. SOUTHWEST  
WINDS 5 TO 10 MPH.    
THURSDAY
 
MOSTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE  
MID 80S. SOUTHWEST WINDS 5 TO 10 MPH.    
THURSDAY NIGHT
 
MOSTLY CLOUDY WITH SHOWERS LIKELY AND A CHANCE  
OF THUNDERSTORMS. LOWS IN THE LOWER 60S. SOUTHWEST WINDS 5 TO  
10 MPH.    
FRIDAY
 
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. WEST WINDS 5 TO  
10 MPH.    
FRIDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE UPPER 50S. WEST WINDS  
5 TO 10 MPH.    
SATURDAY
 
MOSTLY SUNNY. HIGHS IN THE LOWER 70S. NORTHWEST WINDS  
AROUND 5 MPH, BECOMING EAST IN THE AFTERNOON.    
SATURDAY NIGHT AND SUNDAY
 
MOSTLY CLOUDY. LOWS IN THE MID 50S.  
HIGHS IN THE UPPER 60S. EAST WINDS 5 TO 10 MPH.    
SUNDAY NIGHT AND MONDAY
 
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE MID 50S. HIGHS IN THE UPPER 60S. SOUTHEAST  
WINDS 5 TO 10 MPH.  
 

 
 
MAZ013-212000-  
WESTERN NORFOLK MA-  
INCLUDING THE CITIES OF BELLINGHAM, DEDHAM, FOXBOROUGH, MEDFIELD,  
NORWOOD, STOUGHTON, AND WELLESLEY  
409 AM EDT TUE MAY 21 2024  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY PCLDY MCLEAR  
PRECIP TYPE NONE NONE NONE  
CHANCE PRECIP (%)  
TEMP (24H TREND) 83 (+13) 58 (+8) 87  
RH % (24H TREND) 46 (-13) 93 (-7) 42  
20FT WND AM(MPH) LGT/VAR SW 5  
20FT WND PM(MPH) S 6 S 6 SW 7  
PRECIP AMOUNT 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT (FT-AGL) 4630 410 6530  
TRANSPORT WND (KTS) SW 11 SW 12 W 15  
VENT RATE (KT-FT) 50930 4920 97950  
MAX ADI EARLY 26 FAIR 35 FAIR 52 GEN GOOD  
MAX ADI LATE 56 GEN GOOD 10 POOR 104 VERY GOOD  
MAX LVORI EARLY 1 5 1  
MAX LVORI LATE 1 5 1  
MIN VSBY EARLY  
MIN VSBY LATE  
SUNSHINE HOURS N/A N/A N/A  
CWR 0 0 0  
LAL NO TSTMS NO TSTMS NO TSTMS  
HAINES INDEX 4 4 4  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7
 
   
WEDNESDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE LOWER 60S. SOUTHWEST  
WINDS 5 TO 10 MPH.    
THURSDAY
 
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE  
MID 80S. SOUTHWEST WINDS 5 TO 10 MPH.    
THURSDAY NIGHT
 
MOSTLY CLOUDY WITH SHOWERS LIKELY AND A CHANCE  
OF THUNDERSTORMS. LOWS IN THE LOWER 60S. SOUTHWEST WINDS 5 TO  
10 MPH.    
FRIDAY
 
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. WEST WINDS AROUND  
5 MPH.    
FRIDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE UPPER 50S. WEST WINDS  
AROUND 5 MPH.    
SATURDAY
 
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTHWEST WINDS  
AROUND 5 MPH.    
SATURDAY NIGHT AND SUNDAY
 
MOSTLY CLOUDY. LOWS IN THE MID 50S.  
HIGHS IN THE LOWER 70S. EAST WINDS AROUND 5 MPH.    
SUNDAY NIGHT AND MONDAY
 
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE MID 50S. HIGHS AROUND 70. SOUTHEAST WINDS  
5 TO 10 MPH.  
 

 
 
MAZ014-212000-  
SOUTHEAST MIDDLESEX MA-  
INCLUDING THE CITIES OF CAMBRIDGE, LEXINGTON, NEWTON, WALTHAM,  
AND WOBURN  
409 AM EDT TUE MAY 21 2024  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY PCLDY MCLEAR  
PRECIP TYPE NONE NONE NONE  
CHANCE PRECIP (%) 10 10 10  
TEMP (24H TREND) 85 (+18) 61 (+10) 89  
RH % (24H TREND) 44 (-16) 87 (-13) 39  
20FT WND AM(MPH) LGT/VAR SW 6  
20FT WND PM(MPH) S 7 S 7 SW 7  
PRECIP AMOUNT 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT (FT-AGL) 4870 550 7120  
TRANSPORT WND (KTS) SW 10 SW 12 W 16  
VENT RATE (KT-FT) 48700 6600 113920  
MAX ADI EARLY 28 FAIR 53 GEN GOOD 61 GOOD  
MAX ADI LATE 70 GOOD 11 POOR 105 VERY GOOD  
MAX LVORI EARLY 1 5 1  
MAX LVORI LATE 1 5 1  
MIN VSBY EARLY  
MIN VSBY LATE  
SUNSHINE HOURS N/A N/A N/A  
CWR 0 0 0  
LAL NO TSTMS NO TSTMS NO TSTMS  
HAINES INDEX 4 4 5  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7
 
   
WEDNESDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE MID 60S. SOUTHWEST  
WINDS 5 TO 10 MPH.    
THURSDAY
 
MOSTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE  
UPPER 80S. SOUTHWEST WINDS 5 TO 10 MPH.    
THURSDAY NIGHT
 
MOSTLY CLOUDY WITH SHOWERS LIKELY AND A CHANCE  
OF THUNDERSTORMS. LOWS IN THE LOWER 60S. SOUTHWEST WINDS 5 TO  
10 MPH.    
FRIDAY
 
MOSTLY SUNNY. HIGHS IN THE MID 80S. WEST WINDS AROUND  
5 MPH.    
FRIDAY NIGHT
 
MOSTLY CLEAR. LOWS AROUND 60. WEST WINDS AROUND  
5 MPH.    
SATURDAY
 
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTHWEST WINDS  
AROUND 5 MPH, BECOMING EAST IN THE AFTERNOON.    
SATURDAY NIGHT
 
MOSTLY CLOUDY. LOWS IN THE UPPER 50S. SOUTHEAST  
WINDS AROUND 5 MPH.    
SUNDAY
 
MOSTLY SUNNY. HIGHS IN THE LOWER 70S. EAST WINDS 5 TO  
10 MPH.    
SUNDAY NIGHT AND MONDAY
 
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE MID 50S. HIGHS IN THE UPPER 60S. SOUTHEAST  
WINDS 5 TO 10 MPH.  
 

 
 
MAZ007-212000-  
EASTERN ESSEX MA-  
INCLUDING THE CITIES OF BEVERLY, GLOUCESTER, NEWBURYPORT,  
PEABODY, SALEM, AND SAUGUS  
409 AM EDT TUE MAY 21 2024  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY PCLDY MCLEAR  
PRECIP TYPE NONE NONE NONE  
CHANCE PRECIP (%) 10 10 10  
TEMP (24H TREND) 81 (+19) 58 (+8) 87  
RH % (24H TREND) 47 (-21) 93 (-7) 42  
20FT WND AM(MPH) S 5 SW 6  
20FT WND PM(MPH) S 7 S 7 SW 7  
PRECIP AMOUNT 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT (FT-AGL) 4050 380 6370  
TRANSPORT WND (KTS) S 12 SW 11 SW 13  
VENT RATE (KT-FT) 48600 4180 82810  
MAX ADI EARLY 16 GEN POOR 15 GEN POOR 38 FAIR  
MAX ADI LATE 18 GEN POOR 11 POOR 56 GEN GOOD  
MAX LVORI EARLY 2 5 2  
MAX LVORI LATE 2 5 2  
MIN VSBY EARLY  
MIN VSBY LATE  
SUNSHINE HOURS N/A N/A N/A  
CWR 0 0 0  
LAL NO TSTMS NO TSTMS NO TSTMS  
HAINES INDEX 4 4 5  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7
 
   
WEDNESDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE LOWER 60S. SOUTHWEST  
WINDS 10 TO 15 MPH.    
THURSDAY
 
MOSTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE  
LOWER 80S. SOUTHWEST WINDS 5 TO 10 MPH.    
THURSDAY NIGHT
 
MOSTLY CLOUDY WITH SHOWERS LIKELY AND A CHANCE  
OF THUNDERSTORMS. LOWS IN THE LOWER 60S. SOUTHWEST WINDS 5 TO  
10 MPH.    
FRIDAY
 
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS  
5 TO 10 MPH.    
FRIDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE UPPER 50S. WEST WINDS  
5 TO 10 MPH.    
SATURDAY
 
MOSTLY SUNNY. HIGHS AROUND 70. NORTH WINDS AROUND  
5 MPH, BECOMING EAST IN THE AFTERNOON.    
SATURDAY NIGHT
 
MOSTLY CLOUDY. LOWS IN THE MID 50S. SOUTH WINDS  
5 TO 10 MPH.    
SUNDAY
 
MOSTLY SUNNY. HIGHS IN THE MID 60S. EAST WINDS 5 TO  
10 MPH.    
SUNDAY NIGHT AND MONDAY
 
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE LOWER 50S. HIGHS IN THE MID 60S. SOUTHEAST  
WINDS 5 TO 10 MPH.  
 

 
 
MAZ006-212000-  
WESTERN ESSEX MA-  
INCLUDING THE CITIES OF AMESBURY, ANDOVER, HAVERHILL, LAWRENCE,  
METHUEN, AND TOPSFIELD  
409 AM EDT TUE MAY 21 2024  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY PCLDY MCLEAR  
PRECIP TYPE NONE NONE NONE  
CHANCE PRECIP (%) 10 10 10  
TEMP (24H TREND) 86 (+17) 61 (+11) 90  
RH % (24H TREND) 43 (-16) 87 (-13) 39  
20FT WND AM(MPH) LGT/VAR SW 5  
20FT WND PM(MPH) S 6 S 5 SW 7  
PRECIP AMOUNT 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT (FT-AGL) 5420 440 7910  
TRANSPORT WND (KTS) SW 10 SW 10 W 15  
VENT RATE (KT-FT) 54200 4400 118650  
MAX ADI EARLY 28 FAIR 45 GEN GOOD 69 GOOD  
MAX ADI LATE 73 GOOD 6 VERY POOR 105 VERY GOOD  
MAX LVORI EARLY 1 5 1  
MAX LVORI LATE 1 5 1  
MIN VSBY EARLY  
MIN VSBY LATE  
SUNSHINE HOURS N/A N/A N/A  
CWR 0 0 0  
LAL NO TSTMS NO TSTMS NO TSTMS  
HAINES INDEX 4 4 4  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7
 
   
WEDNESDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE MID 60S. SOUTHWEST  
WINDS 5 TO 10 MPH.    
THURSDAY AND THURSDAY NIGHT
 
MOSTLY CLOUDY. SHOWERS LIKELY AND  
A CHANCE OF THUNDERSTORMS. LOWS IN THE MID 60S. HIGHS IN THE  
UPPER 80S. WEST WINDS 5 TO 10 MPH.    
FRIDAY AND FRIDAY NIGHT
 
MOSTLY CLEAR. LOWS 57 TO 62. HIGHS IN  
THE MID 80S. WEST WINDS AROUND 5 MPH.    
SATURDAY
 
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTHWEST WINDS  
AROUND 5 MPH, BECOMING EAST IN THE AFTERNOON.    
SATURDAY NIGHT
 
MOSTLY CLOUDY. LOWS IN THE MID 50S. SOUTHEAST  
WINDS AROUND 5 MPH, BECOMING SOUTHWEST AROUND 5 MPH AFTER  
MIDNIGHT.    
SUNDAY
 
MOSTLY SUNNY. HIGHS AROUND 70. EAST WINDS 5 TO 10 MPH.    
SUNDAY NIGHT AND MONDAY
 
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE LOWER 50S. HIGHS IN THE UPPER 60S. EAST  
WINDS 5 TO 10 MPH.  
 

 
 
MAZ005-212000-  
CENTRAL MIDDLESEX MA-  
INCLUDING THE CITIES OF BURLINGTON, CHELMSFORD, FRAMINGHAM,  
HOPKINTON, LOWELL, AND NATICK  
409 AM EDT TUE MAY 21 2024  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY PCLDY MCLEAR  
PRECIP TYPE NONE NONE NONE  
CHANCE PRECIP (%) 10 10 10  
TEMP (24H TREND) 86 (+14) 61 (+10) 89  
RH % (24H TREND) 42 (-13) 90 (-10) 38  
20FT WND AM(MPH) LGT/VAR SW 5  
20FT WND PM(MPH) S 5 S 5 SW 7  
PRECIP AMOUNT 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT (FT-AGL) 5700 450 7810  
TRANSPORT WND (KTS) SW 10 SW 11 W 15  
VENT RATE (KT-FT) 57000 4950 117150  
MAX ADI EARLY 30 FAIR 56 GEN GOOD 62 GOOD  
MAX ADI LATE 78 GOOD 6 VERY POOR 105 VERY GOOD  
MAX LVORI EARLY 1 5 1  
MAX LVORI LATE 1 5 1  
MIN VSBY EARLY  
MIN VSBY LATE  
SUNSHINE HOURS N/A N/A N/A  
CWR 0 0 0  
LAL NO TSTMS NO TSTMS NO TSTMS  
HAINES INDEX 4 4 5  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7
 
   
WEDNESDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE MID 60S. SOUTHWEST  
WINDS 5 TO 10 MPH.    
THURSDAY AND THURSDAY NIGHT
 
MOSTLY CLOUDY. SHOWERS LIKELY AND  
A CHANCE OF THUNDERSTORMS. LOWS IN THE MID 60S. HIGHS IN THE  
UPPER 80S. WEST WINDS 5 TO 10 MPH.    
FRIDAY AND FRIDAY NIGHT
 
MOSTLY CLEAR. LOWS AROUND 60. HIGHS IN  
THE MID 80S. WEST WINDS 5 TO 10 MPH.    
SATURDAY
 
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS  
AROUND 5 MPH.    
SATURDAY NIGHT
 
MOSTLY CLOUDY. LOWS IN THE MID 50S. SOUTH WINDS  
AROUND 5 MPH.    
SUNDAY
 
MOSTLY SUNNY. HIGHS IN THE LOWER 70S. EAST WINDS 5 TO  
10 MPH.    
SUNDAY NIGHT AND MONDAY
 
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE MID 50S. HIGHS IN THE LOWER 70S. SOUTHEAST  
WINDS 5 TO 10 MPH.  
 

 
 
MAZ012-212000-  
SOUTHERN WORCESTER MA-  
INCLUDING THE CITIES OF MILFORD, OXFORD, STURBRIDGE, UXBRIDGE,  
WESTBOROUGH, AND WORCESTER  
409 AM EDT TUE MAY 21 2024  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY PCLDY MCLEAR  
PRECIP TYPE NONE NONE NONE  
CHANCE PRECIP (%) 10 10  
TEMP (24H TREND) 84 (+10) 58 (+6) 87  
RH % (24H TREND) 44 (-6) 93 (-7) 40  
20FT WND AM(MPH) LGT/VAR SW 5  
20FT WND PM(MPH) SW 5 SW 5 SW 7  
PRECIP AMOUNT 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT (FT-AGL) 4830 330 6900  
TRANSPORT WND (KTS) SW 10 SW 11 W 14  
VENT RATE (KT-FT) 48300 3630 96600  
MAX ADI EARLY 26 FAIR 45 GEN GOOD 53 GEN GOOD  
MAX ADI LATE 60 GEN GOOD 7 POOR 105 VERY GOOD  
MAX LVORI EARLY 1 5 1  
MAX LVORI LATE 1 5 1  
MIN VSBY EARLY  
MIN VSBY LATE  
SUNSHINE HOURS N/A N/A N/A  
CWR 0 0 0  
LAL NO TSTMS NO TSTMS NO TSTMS  
HAINES INDEX 4 4 4  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7
 
   
WEDNESDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE LOWER 60S.  
SOUTHWEST WINDS 5 TO 10 MPH.    
THURSDAY AND THURSDAY NIGHT
 
MOSTLY CLOUDY. SHOWERS LIKELY AND  
A CHANCE OF THUNDERSTORMS. LOWS IN THE LOWER 60S. HIGHS IN THE  
MID 80S. WEST WINDS 5 TO 10 MPH.    
FRIDAY
 
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. WEST WINDS 5 TO  
10 MPH.    
FRIDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE UPPER 50S. WEST WINDS  
5 TO 10 MPH.    
SATURDAY
 
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTHWEST WINDS  
AROUND 5 MPH, BECOMING WEST IN THE AFTERNOON.    
SATURDAY NIGHT
 
MOSTLY CLOUDY. LOWS IN THE MID 50S. SOUTH WINDS  
AROUND 5 MPH, BECOMING EAST AROUND 5 MPH AFTER MIDNIGHT.    
SUNDAY
 
MOSTLY SUNNY. HIGHS IN THE MID 70S. EAST WINDS AROUND  
5 MPH.    
SUNDAY NIGHT AND MONDAY
 
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE LOWER 50S. HIGHS IN THE LOWER 70S. SOUTHEAST  
WINDS 5 TO 10 MPH.  
 

 
 
MAZ004-212000-  
NORTHERN WORCESTER MA-  
INCLUDING THE CITIES OF ATHOL, BOYLSTON, BROOKFIELD, FITCHBURG,  
GARDNER, AND HARVARD  
409 AM EDT TUE MAY 21 2024  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY PCLDY MCLEAR  
PRECIP TYPE NONE NONE NONE  
CHANCE PRECIP (%) 10 10 10  
TEMP (24H TREND) 86 (+11) 58 (+5) 88  
RH % (24H TREND) 41 (+2) 93 (-7) 38  
20FT WND AM(MPH) LGT/VAR SW 5  
20FT WND PM(MPH) SW 5 SW 5 SW 7  
PRECIP AMOUNT 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT (FT-AGL) 5800 240 7870  
TRANSPORT WND (KTS) SW 10 SW 10 W 14  
VENT RATE (KT-FT) 58000 2400 110180  
MAX ADI EARLY 24 FAIR 47 GEN GOOD 55 GEN GOOD  
MAX ADI LATE 68 GOOD 6 VERY POOR 105 VERY GOOD  
MAX LVORI EARLY 1 5 1  
MAX LVORI LATE 1 5 1  
MIN VSBY EARLY  
MIN VSBY LATE  
SUNSHINE HOURS N/A N/A N/A  
CWR 0 0 0  
LAL NO TSTMS NO TSTMS NO TSTMS  
HAINES INDEX 4 4 4  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7
 
   
WEDNESDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE LOWER 60S.  
SOUTHWEST WINDS 5 TO 10 MPH.    
THURSDAY AND THURSDAY NIGHT
 
MOSTLY CLOUDY. SHOWERS LIKELY AND  
A CHANCE OF THUNDERSTORMS. LOWS IN THE LOWER 60S. HIGHS IN THE  
MID 80S. WEST WINDS 5 TO 10 MPH.    
FRIDAY AND FRIDAY NIGHT
 
MOSTLY CLEAR. LOWS 55 TO 60. HIGHS IN  
THE LOWER 80S. NORTHWEST WINDS 5 TO 10 MPH.    
SATURDAY
 
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTHWEST WINDS  
AROUND 5 MPH.    
SATURDAY NIGHT
 
MOSTLY CLOUDY. LOWS IN THE MID 50S. SOUTHEAST  
WINDS AROUND 5 MPH.    
SUNDAY
 
MOSTLY SUNNY. HIGHS IN THE MID 70S. EAST WINDS AROUND  
5 MPH.    
SUNDAY NIGHT AND MONDAY
 
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE LOWER 50S. HIGHS IN THE LOWER 70S. SOUTHEAST  
WINDS 5 TO 10 MPH.  
 

 
 
MAZ026-212000-  
NORTHERN MIDDLESEX MA-  
INCLUDING THE CITIES OF ASHBY, AYER, GROTON, PEPPERELL, SHIRLEY,  
AND TOWNSEND  
409 AM EDT TUE MAY 21 2024  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY PCLDY MCLEAR  
PRECIP TYPE NONE NONE NONE  
CHANCE PRECIP (%) 20 10 10  
TEMP (24H TREND) 88 (+13) 61 (+9) 90  
RH % (24H TREND) 40 (-12) 90 (-10) 39  
20FT WND AM(MPH) LGT/VAR LGT/VAR  
20FT WND PM(MPH) LGT/VAR LGT/VAR SW 6  
PRECIP AMOUNT 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT (FT-AGL) 5940 270 7680  
TRANSPORT WND (KTS) SW 10 SW 9 W 15  
VENT RATE (KT-FT) 59400 2430 115200  
MAX ADI EARLY 30 FAIR 54 GEN GOOD 72 GOOD  
MAX ADI LATE 77 GOOD 5 VERY POOR 105 VERY GOOD  
MAX LVORI EARLY 1 5 1  
MAX LVORI LATE 1 5 1  
MIN VSBY EARLY  
MIN VSBY LATE  
SUNSHINE HOURS N/A N/A N/A  
CWR 0 0 0  
LAL NO TSTMS NO TSTMS NO TSTMS  
HAINES INDEX 4 4 4  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7
 
   
WEDNESDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE MID 60S. SOUTHWEST  
WINDS AROUND 5 MPH.    
THURSDAY AND THURSDAY NIGHT
 
MOSTLY CLOUDY. SHOWERS LIKELY AND  
A CHANCE OF THUNDERSTORMS. LOWS IN THE LOWER 60S. HIGHS IN THE  
UPPER 80S. WEST WINDS 5 TO 10 MPH.    
FRIDAY AND FRIDAY NIGHT
 
MOSTLY CLEAR. LOWS 56 TO 61. HIGHS IN  
THE MID 80S. NORTHWEST WINDS AROUND 5 MPH.    
SATURDAY
 
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS  
AROUND 5 MPH.    
SATURDAY NIGHT
 
MOSTLY CLOUDY. LOWS IN THE MID 50S. SOUTHEAST  
WINDS AROUND 5 MPH, BECOMING WEST AFTER MIDNIGHT.    
SUNDAY
 
MOSTLY SUNNY. HIGHS IN THE MID 70S. EAST WINDS AROUND  
5 MPH.    
SUNDAY NIGHT AND MONDAY
 
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE LOWER 50S. HIGHS IN THE LOWER 70S. SOUTHEAST  
WINDS AROUND 5 MPH.  
 

 
 
MAZ002-212000-  
WESTERN FRANKLIN MA-  
INCLUDING THE CITIES OF ASHFIELD, CHARLEMONT, COLRAIN,  
AND SHELBURNE  
409 AM EDT TUE MAY 21 2024  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY PCLDY MCLEAR  
PRECIP TYPE SHOWERS NONE NONE  
CHANCE PRECIP (%) 20 20 20  
TEMP (24H TREND) 86 (+9) 60 (+8) 88  
RH % (24H TREND) 45 (-2) 96 (-4) 40  
20FT WND AM(MPH) LGT/VAR LGT/VAR  
20FT WND PM(MPH) LGT/VAR LGT/VAR SW 5  
PRECIP AMOUNT 0.01 0.00 0.00  
PRECIP DURATION 1  
PRECIP BEGIN 12 PM  
PRECIP END 6 PM  
MIXING HGT (FT-AGL) 7030 230 8320  
TRANSPORT WND (KTS) SW 10 SW 8 W 12  
VENT RATE (KT-FT) 70300 1840 99840  
MAX ADI EARLY 34 FAIR 27 FAIR 90 GOOD  
MAX ADI LATE 87 GOOD 5 VERY POOR 105 VERY GOOD  
MAX LVORI EARLY 1 6 1  
MAX LVORI LATE 1 6 1  
MIN VSBY EARLY  
MIN VSBY LATE  
SUNSHINE HOURS N/A N/A N/A  
CWR 0 0  
LAL NO TSTMS NO TSTMS NO TSTMS  
HAINES INDEX 4 4 4  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7
 
   
WEDNESDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE MID 60S. SOUTHWEST  
WINDS AROUND 5 MPH.    
THURSDAY
 
PARTLY SUNNY WITH SHOWERS LIKELY AND A CHANCE OF  
THUNDERSTORMS. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS 5 TO  
10 MPH.    
THURSDAY NIGHT
 
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN  
THE UPPER 50S. WEST WINDS AROUND 5 MPH.    
FRIDAY AND FRIDAY NIGHT
 
MOSTLY CLEAR. LOWS 53 TO 58. HIGHS IN  
THE UPPER 70S. NORTHWEST WINDS 5 TO 10 MPH.    
SATURDAY THROUGH SUNDAY
 
PARTLY CLOUDY. LOWS IN THE LOWER 50S.  
HIGHS IN THE MID 70S. SOUTHEAST WINDS AROUND 5 MPH.    
SUNDAY NIGHT AND MONDAY
 
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE LOWER 50S. HIGHS AROUND 70. SOUTH WINDS  
AROUND 5 MPH.  
 

 
 
MAZ003-212000-  
EASTERN FRANKLIN MA-  
INCLUDING THE CITIES OF GREENFIELD, LEVERETT, NORTHFIELD, ORANGE,  
AND WHATELY  
409 AM EDT TUE MAY 21 2024  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY PCLDY MCLEAR  
PRECIP TYPE SHOWERS NONE NONE  
CHANCE PRECIP (%) 20 20 10  
TEMP (24H TREND) 87 (+7) 59 (+7) 90  
RH % (24H TREND) 43 (+4) 93 (-7) 38  
20FT WND AM(MPH) LGT/VAR LGT/VAR  
20FT WND PM(MPH) S 5 LGT/VAR SW 6  
PRECIP AMOUNT 0.02 0.00 0.00  
PRECIP DURATION 1  
PRECIP BEGIN 1 PM  
PRECIP END 6 PM  
MIXING HGT (FT-AGL) 6060 170 8340  
TRANSPORT WND (KTS) SW 10 S 7 SW 13  
VENT RATE (KT-FT) 60600 1190 108420  
MAX ADI EARLY 21 FAIR 25 FAIR 55 GEN GOOD  
MAX ADI LATE 68 GOOD 5 VERY POOR 105 VERY GOOD  
MAX LVORI EARLY 1 6 1  
MAX LVORI LATE 1 6 1  
MIN VSBY EARLY  
MIN VSBY LATE  
SUNSHINE HOURS N/A N/A N/A  
CWR 10 0 0  
LAL NO TSTMS NO TSTMS NO TSTMS  
HAINES INDEX 4 4 4  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7
 
   
WEDNESDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE MID 60S. SOUTHWEST  
WINDS 5 TO 10 MPH.    
THURSDAY
 
PARTLY SUNNY WITH SHOWERS LIKELY AND A CHANCE OF  
THUNDERSTORMS. HIGHS IN THE MID 80S. SOUTHWEST WINDS 5 TO 10 MPH.   
THURSDAY NIGHT
 
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS  
AROUND 60. WEST WINDS 5 TO 10 MPH.    
FRIDAY AND FRIDAY NIGHT
 
MOSTLY CLEAR. LOWS 55 TO 60. HIGHS IN  
THE LOWER 80S. NORTHWEST WINDS 5 TO 10 MPH.    
SATURDAY
 
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTHWEST WINDS  
AROUND 5 MPH.    
SATURDAY NIGHT
 
MOSTLY CLOUDY. LOWS IN THE MID 50S. EAST WINDS  
AROUND 5 MPH.    
SUNDAY
 
MOSTLY SUNNY. HIGHS IN THE MID 70S. EAST WINDS AROUND  
5 MPH.    
SUNDAY NIGHT AND MONDAY
 
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE MID 50S. HIGHS IN THE LOWER 70S. SOUTHEAST  
WINDS 5 TO 10 MPH.  
 

 
 
MAZ008-212000-  
WESTERN HAMPSHIRE MA-  
INCLUDING THE CITIES OF CHESTERFIELD, PLAINFIELD, WESTHAMPTON,  
WILLIAMSBURG, AND WORTHINGTON  
409 AM EDT TUE MAY 21 2024  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY PCLDY MCLEAR  
PRECIP TYPE SHOWERS NONE NONE  
CHANCE PRECIP (%) 20 10 20  
TEMP (24H TREND) 84 (+7) 60 (+8) 87  
RH % (24H TREND) 43 (-4) 90 (-10) 40  
20FT WND AM(MPH) LGT/VAR LGT/VAR  
20FT WND PM(MPH) SW 5 LGT/VAR SW 6  
PRECIP AMOUNT 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT (FT-AGL) 6800 250 7430  
TRANSPORT WND (KTS) SW 10 SW 8 W 12  
VENT RATE (KT-FT) 68000 2000 89160  
MAX ADI EARLY 30 FAIR 33 FAIR 75 GOOD  
MAX ADI LATE 78 GOOD 5 VERY POOR 103 VERY GOOD  
MAX LVORI EARLY 1 5 1  
MAX LVORI LATE 1 5 1  
MIN VSBY EARLY  
MIN VSBY LATE  
SUNSHINE HOURS N/A N/A N/A  
CWR 0 0  
LAL NO TSTMS NO TSTMS NO TSTMS  
HAINES INDEX 4 4 4  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7
 
   
WEDNESDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE MID 60S. SOUTHWEST  
WINDS 5 TO 10 MPH.    
THURSDAY
 
PARTLY SUNNY WITH SHOWERS LIKELY AND A CHANCE OF  
THUNDERSTORMS. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS 5 TO  
10 MPH.    
THURSDAY NIGHT
 
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN  
THE UPPER 50S. WEST WINDS AROUND 5 MPH.    
FRIDAY AND FRIDAY NIGHT
 
MOSTLY CLEAR. LOWS 54 TO 59. HIGHS IN  
THE UPPER 70S. NORTHWEST WINDS 5 TO 10 MPH.    
SATURDAY
 
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTHWEST WINDS  
AROUND 5 MPH.    
SATURDAY NIGHT
 
MOSTLY CLOUDY. LOWS IN THE MID 50S. SOUTHWEST  
WINDS AROUND 5 MPH, BECOMING EAST AFTER MIDNIGHT.    
SUNDAY
 
MOSTLY SUNNY. HIGHS IN THE LOWER 70S. EAST WINDS AROUND  
5 MPH.    
SUNDAY NIGHT AND MONDAY
 
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE MID 50S. HIGHS AROUND 70. SOUTHEAST WINDS  
AROUND 5 MPH.  
 

 
 
MAZ010-212000-  
EASTERN HAMPSHIRE MA-  
INCLUDING THE CITIES OF AMHERST, BELCHERTOWN, NORTHAMPTON,  
SOUTHAMPTON, AND WARE  
409 AM EDT TUE MAY 21 2024  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY PCLDY MCLEAR  
PRECIP TYPE NONE NONE NONE  
CHANCE PRECIP (%) 10 10 10  
TEMP (24H TREND) 87 (+8) 59 (+6) 90  
RH % (24H TREND) 43 (+8) 93 (-7) 38  
20FT WND AM(MPH) LGT/VAR LGT/VAR  
20FT WND PM(MPH) S 5 S 5 SW 7  
PRECIP AMOUNT 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT (FT-AGL) 5710 290 7210  
TRANSPORT WND (KTS) SW 10 S 8 SW 11  
VENT RATE (KT-FT) 57100 2320 79310  
MAX ADI EARLY 21 FAIR 38 FAIR 44 GEN GOOD  
MAX ADI LATE 65 GOOD 5 VERY POOR 102 VERY GOOD  
MAX LVORI EARLY 1 6 1  
MAX LVORI LATE 1 6 1  
MIN VSBY EARLY  
MIN VSBY LATE  
SUNSHINE HOURS N/A N/A N/A  
CWR 0 0 0  
LAL NO TSTMS NO TSTMS NO TSTMS  
HAINES INDEX 4 4 4  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7
 
   
WEDNESDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE MID 60S. SOUTH  
WINDS 5 TO 10 MPH.    
THURSDAY AND THURSDAY NIGHT
 
MOSTLY CLOUDY. SHOWERS LIKELY AND  
A CHANCE OF THUNDERSTORMS. LOWS IN THE LOWER 60S. HIGHS IN THE  
MID 80S. WEST WINDS 5 TO 10 MPH.    
FRIDAY AND FRIDAY NIGHT
 
MOSTLY CLEAR. LOWS 56 TO 61. HIGHS IN  
THE LOWER 80S. NORTHWEST WINDS 5 TO 10 MPH.    
SATURDAY
 
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTH WINDS  
AROUND 5 MPH, BECOMING WEST AROUND 5 MPH IN THE AFTERNOON.    
SATURDAY NIGHT
 
MOSTLY CLOUDY. LOWS IN THE MID 50S. SOUTH WINDS  
AROUND 5 MPH, BECOMING EAST AFTER MIDNIGHT.    
SUNDAY
 
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. EAST WINDS AROUND  
5 MPH.    
SUNDAY NIGHT AND MONDAY
 
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE MID 50S. HIGHS IN THE MID 70S. SOUTHEAST  
WINDS 5 TO 10 MPH.  
 

 
 
MAZ009-212000-  
WESTERN HAMPDEN MA-  
INCLUDING THE CITIES OF BLANDFORD, CHESTER, GRANVILLE,  
MONTGOMERY, RUSSELL, AND TOLLAND  
409 AM EDT TUE MAY 21 2024  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY PCLDY MCLEAR  
PRECIP TYPE NONE NONE NONE  
CHANCE PRECIP (%) 10 10 10  
TEMP (24H TREND) 85 (+9) 60 (+8) 87  
RH % (24H TREND) 43 (-9) 93 (-7) 39  
20FT WND AM(MPH) LGT/VAR LGT/VAR  
20FT WND PM(MPH) SW 5 SW 5 SW 6  
PRECIP AMOUNT 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT (FT-AGL) 6500 200 7630  
TRANSPORT WND (KTS) SW 9 W 10 W 11  
VENT RATE (KT-FT) 58500 2000 83930  
MAX ADI EARLY 27 FAIR 45 GEN GOOD 65 GOOD  
MAX ADI LATE 72 GOOD 5 VERY POOR 101 VERY GOOD  
MAX LVORI EARLY 1 5 1  
MAX LVORI LATE 1 5 1  
MIN VSBY EARLY  
MIN VSBY LATE  
SUNSHINE HOURS N/A N/A N/A  
CWR 0 0 0  
LAL NO TSTMS NO TSTMS NO TSTMS  
HAINES INDEX 4 4 4  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7
 
   
WEDNESDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE MID 60S. SOUTHWEST  
WINDS 5 TO 10 MPH.    
THURSDAY
 
PARTLY SUNNY WITH SHOWERS LIKELY AND A CHANCE OF  
THUNDERSTORMS. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS 5 TO  
10 MPH.    
THURSDAY NIGHT
 
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS  
AROUND 60. WEST WINDS 5 TO 10 MPH.    
FRIDAY AND FRIDAY NIGHT
 
MOSTLY CLEAR. LOWS 55 TO 60. HIGHS  
AROUND 80. NORTHWEST WINDS 5 TO 10 MPH.    
SATURDAY
 
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTHWEST WINDS  
AROUND 5 MPH.    
SATURDAY NIGHT
 
MOSTLY CLOUDY. LOWS IN THE MID 50S. SOUTH WINDS  
AROUND 5 MPH, BECOMING EAST AFTER MIDNIGHT.    
SUNDAY
 
MOSTLY SUNNY. HIGHS IN THE MID 70S. EAST WINDS AROUND  
5 MPH.    
SUNDAY NIGHT AND MONDAY
 
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE MID 50S. HIGHS IN THE LOWER 70S. SOUTHEAST  
WINDS 5 TO 10 MPH.  
 

 
 
MAZ011-212000-  
EASTERN HAMPDEN MA-  
INCLUDING THE CITIES OF CHICOPEE, HOLLAND, PALMER, SOUTHWICK,  
SPRINGFIELD, AND WESTFIELD  
409 AM EDT TUE MAY 21 2024  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY PCLDY MCLEAR  
PRECIP TYPE NONE NONE NONE  
CHANCE PRECIP (%) 10 10 10  
TEMP (24H TREND) 87 (+9) 57 (+4) 89  
RH % (24H TREND) 42 (+4) 96 (-4) 38  
20FT WND AM(MPH) LGT/VAR LGT/VAR  
20FT WND PM(MPH) S 5 S 6 SW 7  
PRECIP AMOUNT 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT (FT-AGL) 5570 210 7540  
TRANSPORT WND (KTS) S 10 SW 9 SW 12  
VENT RATE (KT-FT) 55700 1890 90480  
MAX ADI EARLY 22 FAIR 45 GEN GOOD 45 GEN GOOD  
MAX ADI LATE 63 GOOD 6 VERY POOR 96 GOOD  
MAX LVORI EARLY 1 6 1  
MAX LVORI LATE 1 6 1  
MIN VSBY EARLY  
MIN VSBY LATE  
SUNSHINE HOURS N/A N/A N/A  
CWR 0 0 0  
LAL NO TSTMS NO TSTMS NO TSTMS  
HAINES INDEX 4 4 4  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7
 
   
WEDNESDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTH  
WINDS 5 TO 10 MPH.    
THURSDAY AND THURSDAY NIGHT
 
MOSTLY CLOUDY. SHOWERS LIKELY AND  
A CHANCE OF THUNDERSTORMS. LOWS IN THE LOWER 60S. HIGHS IN THE  
MID 80S. WEST WINDS 5 TO 10 MPH.    
FRIDAY AND FRIDAY NIGHT
 
MOSTLY CLEAR. LOWS 56 TO 61. HIGHS IN  
THE LOWER 80S. NORTHWEST WINDS 5 TO 10 MPH.    
SATURDAY
 
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTH WINDS  
AROUND 5 MPH, BECOMING WEST AROUND 5 MPH IN THE AFTERNOON.    
SATURDAY NIGHT
 
MOSTLY CLOUDY. LOWS IN THE MID 50S. SOUTH WINDS  
AROUND 5 MPH, BECOMING EAST AROUND 5 MPH AFTER MIDNIGHT.    
SUNDAY
 
MOSTLY SUNNY. HIGHS IN THE MID 70S. EAST WINDS AROUND  
5 MPH.    
SUNDAY NIGHT AND MONDAY
 
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE MID 50S. HIGHS IN THE MID 70S. SOUTHEAST  
WINDS 5 TO 10 MPH.  
 

 
 
CTZ002-212000-  
HARTFORD CT-  
INCLUDING THE CITIES OF HARTFORD, GLASTONBURY, GRANBY,  
SOUTHINGTON, AND WINDSOR LOCKS  
409 AM EDT TUE MAY 21 2024  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY PCLDY MCLEAR  
PRECIP TYPE NONE NONE NONE  
CHANCE PRECIP (%) 10 10  
TEMP (24H TREND) 85 (+6) 57 (+4) 88  
RH % (24H TREND) 43 (+1) 96 (-4) 39  
20FT WND AM(MPH) LGT/VAR LGT/VAR  
20FT WND PM(MPH) S 5 S 6 SW 7  
PRECIP AMOUNT 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT (FT-AGL) 5510 290 7580  
TRANSPORT WND (KTS) S 10 SW 9 SW 12  
VENT RATE (KT-FT) 55100 2610 90960  
MAX ADI EARLY 22 FAIR 35 FAIR 45 GEN GOOD  
MAX ADI LATE 57 GEN GOOD 5 VERY POOR 92 GOOD  
MAX LVORI EARLY 1 6 1  
MAX LVORI LATE 1 6 1  
MIN VSBY EARLY  
MIN VSBY LATE  
SUNSHINE HOURS N/A N/A N/A  
CWR 0 0 0  
LAL NO TSTMS NO TSTMS NO TSTMS  
HAINES INDEX 4 4 4  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7
 
   
WEDNESDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTH  
WINDS 5 TO 10 MPH.    
THURSDAY
 
PARTLY SUNNY WITH SHOWERS LIKELY AND A CHANCE OF  
THUNDERSTORMS. HIGHS IN THE MID 80S. SOUTHWEST WINDS 5 TO 10 MPH.   
THURSDAY NIGHT
 
MOSTLY CLOUDY WITH SHOWERS LIKELY AND A CHANCE  
OF THUNDERSTORMS. LOWS IN THE LOWER 60S. SOUTHWEST WINDS 5 TO  
10 MPH.    
FRIDAY
 
SUNNY. HIGHS IN THE LOWER 80S. WEST WINDS AROUND 5 MPH.   
FRIDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE UPPER 50S. WEST WINDS  
5 TO 10 MPH.    
SATURDAY
 
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. NORTH WINDS  
AROUND 5 MPH, BECOMING SOUTHWEST AROUND 5 MPH IN THE AFTERNOON.    
SATURDAY NIGHT
 
MOSTLY CLOUDY. LOWS IN THE MID 50S. SOUTH WINDS  
AROUND 5 MPH, BECOMING NORTHEAST AFTER MIDNIGHT.    
SUNDAY
 
MOSTLY SUNNY. HIGHS IN THE UPPER 70S. EAST WINDS AROUND  
5 MPH.    
SUNDAY NIGHT AND MONDAY
 
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE MID 50S. HIGHS IN THE MID 70S. SOUTH WINDS  
5 TO 10 MPH.  
 

 
 
CTZ003-212000-  
TOLLAND CT-  
INCLUDING THE CITIES OF MANSFIELD, STAFFORD SPRINGS, AND VERNON  
409 AM EDT TUE MAY 21 2024  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY PCLDY MCLEAR  
PRECIP TYPE NONE NONE NONE  
CHANCE PRECIP (%) 10  
TEMP (24H TREND) 84 (+7) 56 (+4) 87  
RH % (24H TREND) 44 (-4) 96 (-4) 40  
20FT WND AM(MPH) LGT/VAR LGT/VAR  
20FT WND PM(MPH) S 5 S 6 SW 7  
PRECIP AMOUNT 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT (FT-AGL) 4580 220 6110  
TRANSPORT WND (KTS) SW 9 SW 9 SW 13  
VENT RATE (KT-FT) 41220 1980 79430  
MAX ADI EARLY 20 GEN POOR 28 FAIR 40 FAIR  
MAX ADI LATE 46 GEN GOOD 6 VERY POOR 87 GOOD  
MAX LVORI EARLY 2 6 1  
MAX LVORI LATE 2 6 1  
MIN VSBY EARLY  
MIN VSBY LATE  
SUNSHINE HOURS N/A N/A N/A  
CWR 0 0 0  
LAL NO TSTMS NO TSTMS NO TSTMS  
HAINES INDEX 4 4 4  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7
 
   
WEDNESDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE LOWER 60S. SOUTH  
WINDS 5 TO 10 MPH.    
THURSDAY AND THURSDAY NIGHT
 
MOSTLY CLOUDY. SHOWERS LIKELY AND  
A CHANCE OF THUNDERSTORMS. LOWS IN THE LOWER 60S. HIGHS IN THE  
MID 80S. WEST WINDS 5 TO 10 MPH.    
FRIDAY
 
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. WEST WINDS AROUND  
5 MPH.    
FRIDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE MID 50S. WEST WINDS  
AROUND 5 MPH.    
SATURDAY
 
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTH WINDS  
AROUND 5 MPH, BECOMING SOUTHWEST AROUND 5 MPH IN THE AFTERNOON.    
SATURDAY NIGHT AND SUNDAY
 
MOSTLY CLOUDY. LOWS IN THE MID 50S.  
HIGHS IN THE MID 70S. SOUTHEAST WINDS AROUND 5 MPH.    
SUNDAY NIGHT AND MONDAY
 
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE MID 50S. HIGHS IN THE LOWER 70S. SOUTHEAST  
WINDS 5 TO 10 MPH.  
 

 
 
CTZ004-212000-  
WINDHAM CT-  
INCLUDING THE CITIES OF ASHFORD, PLAINFIELD, PUTNAM,  
AND WILLIMANTIC  
409 AM EDT TUE MAY 21 2024  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY PCLDY MCLEAR  
PRECIP TYPE NONE NONE NONE  
CHANCE PRECIP (%)  
TEMP (24H TREND) 83 (+7) 55 (+3) 86  
RH % (24H TREND) 47 (-1) 96 (-4) 45  
20FT WND AM(MPH) LGT/VAR LGT/VAR  
20FT WND PM(MPH) SW 5 SW 5 SW 7  
PRECIP AMOUNT 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT (FT-AGL) 4190 280 5620  
TRANSPORT WND (KTS) SW 9 SW 9 SW 14  
VENT RATE (KT-FT) 37710 2520 78680  
MAX ADI EARLY 20 GEN POOR 27 FAIR 41 GEN GOOD  
MAX ADI LATE 43 GEN GOOD 5 VERY POOR 86 GOOD  
MAX LVORI EARLY 2 6 1  
MAX LVORI LATE 2 6 1  
MIN VSBY EARLY  
MIN VSBY LATE  
SUNSHINE HOURS N/A N/A N/A  
CWR 0 0 0  
LAL NO TSTMS NO TSTMS NO TSTMS  
HAINES INDEX 4 4 4  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7
 
   
WEDNESDAY NIGHT
 
PARTLY CLOUDY. LOWS AROUND 60. SOUTHWEST WINDS  
5 TO 10 MPH.    
THURSDAY
 
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE  
MID 80S. SOUTHWEST WINDS 5 TO 10 MPH.    
THURSDAY NIGHT
 
MOSTLY CLOUDY WITH SHOWERS LIKELY AND A CHANCE  
OF THUNDERSTORMS. LOWS IN THE LOWER 60S. SOUTHWEST WINDS 5 TO  
10 MPH.    
FRIDAY
 
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. WEST WINDS AROUND  
5 MPH.    
FRIDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE UPPER 50S. WEST WINDS  
AROUND 5 MPH.    
SATURDAY
 
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTH WINDS  
AROUND 5 MPH, BECOMING SOUTHWEST AROUND 5 MPH IN THE AFTERNOON.    
SATURDAY NIGHT AND SUNDAY
 
MOSTLY CLOUDY. LOWS IN THE MID 50S.  
HIGHS IN THE MID 70S. EAST WINDS AROUND 5 MPH.    
SUNDAY NIGHT AND MONDAY
 
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE MID 50S. HIGHS IN THE LOWER 70S. SOUTHEAST  
WINDS 5 TO 10 MPH.  
 

 
 
RIZ001-212000-  
NORTHWEST PROVIDENCE RI-  
INCLUDING THE CITIES OF CUMBERLAND, FOSTER, GLOCESTER,  
AND SMITHFIELD  
409 AM EDT TUE MAY 21 2024  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY PCLDY MCLEAR  
PRECIP TYPE NONE NONE NONE  
CHANCE PRECIP (%)  
TEMP (24H TREND) 81 (+8) 56 (+5) 85  
RH % (24H TREND) 49 (-6) 93 (-7) 46  
20FT WND AM(MPH) LGT/VAR SW 5  
20FT WND PM(MPH) SW 5 SW 5 SW 7  
PRECIP AMOUNT 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT (FT-AGL) 4140 300 5380  
TRANSPORT WND (KTS) SW 10 W 12 SW 15  
VENT RATE (KT-FT) 41400 3600 80700  
MAX ADI EARLY 23 FAIR 27 FAIR 46 GEN GOOD  
MAX ADI LATE 49 GEN GOOD 9 POOR 93 GOOD  
MAX LVORI EARLY 2 5 1  
MAX LVORI LATE 2 5 1  
MIN VSBY EARLY  
MIN VSBY LATE  
SUNSHINE HOURS N/A N/A N/A  
CWR 0 0 0  
LAL NO TSTMS NO TSTMS NO TSTMS  
HAINES INDEX 4 4 4  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7
 
   
WEDNESDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE LOWER 60S.  
SOUTHWEST WINDS 5 TO 10 MPH.    
THURSDAY
 
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE  
MID 80S. SOUTHWEST WINDS 5 TO 10 MPH.    
THURSDAY NIGHT
 
MOSTLY CLOUDY WITH SHOWERS LIKELY AND A CHANCE  
OF THUNDERSTORMS. LOWS IN THE LOWER 60S. SOUTHWEST WINDS 5 TO  
10 MPH.    
FRIDAY
 
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. WEST WINDS AROUND  
5 MPH.    
FRIDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE UPPER 50S. WEST WINDS  
AROUND 5 MPH.    
SATURDAY
 
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTHWEST WINDS  
AROUND 5 MPH, BECOMING SOUTHWEST IN THE AFTERNOON.    
SATURDAY NIGHT AND SUNDAY
 
MOSTLY CLOUDY. LOWS IN THE MID 50S.  
HIGHS IN THE LOWER 70S. EAST WINDS AROUND 5 MPH.    
SUNDAY NIGHT AND MONDAY
 
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE LOWER 50S. HIGHS IN THE LOWER 70S. SOUTHEAST  
WINDS 5 TO 10 MPH.  
 

 
 
RIZ002-212000-  
SOUTHEAST PROVIDENCE RI-  
INCLUDING THE CITIES OF CRANSTON, JOHNSTON, PAWTUCKET,  
AND PROVIDENCE  
409 AM EDT TUE MAY 21 2024  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY PCLDY MCLEAR  
PRECIP TYPE NONE NONE NONE  
CHANCE PRECIP (%)  
TEMP (24H TREND) 79 (+6) 56 (+5) 84  
RH % (24H TREND) 50 (-7) 93 (-7) 47  
20FT WND AM(MPH) LGT/VAR SW 5  
20FT WND PM(MPH) S 6 S 5 SW 8  
PRECIP AMOUNT 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT (FT-AGL) 3390 540 4480  
TRANSPORT WND (KTS) S 10 SW 12 SW 15  
VENT RATE (KT-FT) 33900 6480 67200  
MAX ADI EARLY 21 FAIR 26 FAIR 42 GEN GOOD  
MAX ADI LATE 39 FAIR 9 POOR 74 GOOD  
MAX LVORI EARLY 2 5 1  
MAX LVORI LATE 2 5 1  
MIN VSBY EARLY  
MIN VSBY LATE  
SUNSHINE HOURS N/A N/A N/A  
CWR 0 0 0  
LAL NO TSTMS NO TSTMS NO TSTMS  
HAINES INDEX 4 4 5  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7
 
   
WEDNESDAY NIGHT
 
PARTLY CLOUDY. LOWS AROUND 60. SOUTHWEST WINDS  
5 TO 10 MPH.    
THURSDAY
 
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE  
MID 80S. SOUTHWEST WINDS 5 TO 10 MPH.    
THURSDAY NIGHT
 
MOSTLY CLOUDY WITH SHOWERS LIKELY AND A CHANCE  
OF THUNDERSTORMS. LOWS IN THE LOWER 60S. SOUTHWEST WINDS 5 TO  
10 MPH.    
FRIDAY
 
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. WEST WINDS 5 TO  
10 MPH.    
FRIDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE UPPER 50S. WEST WINDS  
5 TO 10 MPH.    
SATURDAY
 
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTHWEST WINDS  
AROUND 5 MPH, BECOMING SOUTH IN THE AFTERNOON.    
SATURDAY NIGHT AND SUNDAY
 
MOSTLY CLOUDY. LOWS IN THE MID 50S.  
HIGHS IN THE LOWER 70S. EAST WINDS 5 TO 10 MPH.    
SUNDAY NIGHT AND MONDAY
 
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE MID 50S. HIGHS IN THE LOWER 70S. SOUTHEAST  
WINDS 5 TO 10 MPH.  
 

 
 
RIZ003-212000-  
WESTERN KENT RI-  
INCLUDING THE CITIES OF COVENTRY AND WEST GREENWICH  
409 AM EDT TUE MAY 21 2024  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY PCLDY MCLEAR  
PRECIP TYPE NONE NONE NONE  
CHANCE PRECIP (%)  
TEMP (24H TREND) 77 (+5) 54 (+3) 81  
RH % (24H TREND) 54 (-5) 96 (-4) 49  
20FT WND AM(MPH) LGT/VAR SW 5  
20FT WND PM(MPH) S 6 SW 5 SW 8  
PRECIP AMOUNT 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT (FT-AGL) 2690 380 3660  
TRANSPORT WND (KTS) S 10 SW 10 SW 16  
VENT RATE (KT-FT) 26900 3800 58560  
MAX ADI EARLY 18 GEN POOR 21 FAIR 40 FAIR  
MAX ADI LATE 32 FAIR 9 POOR 66 GOOD  
MAX LVORI EARLY 3 6 1  
MAX LVORI LATE 3 6 1  
MIN VSBY EARLY  
MIN VSBY LATE  
SUNSHINE HOURS N/A N/A N/A  
CWR 0 0 0  
LAL NO TSTMS NO TSTMS NO TSTMS  
HAINES INDEX 4 4 4  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7
 
   
WEDNESDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE UPPER 50S.  
SOUTHWEST WINDS 5 TO 10 MPH.    
THURSDAY
 
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE  
LOWER 80S. SOUTHWEST WINDS 5 TO 10 MPH.    
THURSDAY NIGHT
 
MOSTLY CLOUDY WITH SHOWERS LIKELY AND A CHANCE  
OF THUNDERSTORMS. LOWS IN THE LOWER 60S. SOUTHWEST WINDS 5 TO  
10 MPH.    
FRIDAY AND FRIDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE UPPER 50S.  
HIGHS IN THE LOWER 80S. WEST WINDS AROUND 5 MPH.    
SATURDAY
 
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTHWEST WINDS  
AROUND 5 MPH, BECOMING SOUTH IN THE AFTERNOON.    
SATURDAY NIGHT AND SUNDAY
 
MOSTLY CLOUDY. LOWS IN THE MID 50S.  
HIGHS IN THE LOWER 70S. EAST WINDS AROUND 5 MPH.    
SUNDAY NIGHT AND MONDAY
 
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE LOWER 50S. HIGHS AROUND 70. SOUTHEAST WINDS  
5 TO 10 MPH.  
 

 
 
RIZ004-212000-  
EASTERN KENT RI-  
INCLUDING THE CITIES OF EAST GREENWICH, WARWICK, AND WEST WARWICK  
409 AM EDT TUE MAY 21 2024  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY PCLDY MCLEAR  
PRECIP TYPE NONE NONE NONE  
CHANCE PRECIP (%)  
TEMP (24H TREND) 76 (+5) 55 (+3) 80  
RH % (24H TREND) 55 (-4) 96 (-4) 50  
20FT WND AM(MPH) LGT/VAR SW 6  
20FT WND PM(MPH) S 8 SW 7 SW 9  
PRECIP AMOUNT 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT (FT-AGL) 2480 420 3660  
TRANSPORT WND (KTS) S 11 SW 11 SW 15  
VENT RATE (KT-FT) 27280 4620 54900  
MAX ADI EARLY 20 GEN POOR 23 FAIR 39 FAIR  
MAX ADI LATE 30 FAIR 9 POOR 55 GEN GOOD  
MAX LVORI EARLY 2 5 1  
MAX LVORI LATE 2 5 1  
MIN VSBY EARLY  
MIN VSBY LATE  
SUNSHINE HOURS N/A N/A N/A  
CWR 0 0 0  
LAL NO TSTMS NO TSTMS NO TSTMS  
HAINES INDEX 4 4 4  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7
 
   
WEDNESDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE UPPER 50S.  
SOUTHWEST WINDS 5 TO 10 MPH.    
THURSDAY
 
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE  
LOWER 80S. SOUTHWEST WINDS 5 TO 10 MPH.    
THURSDAY NIGHT
 
MOSTLY CLOUDY WITH SHOWERS LIKELY AND A CHANCE  
OF THUNDERSTORMS. LOWS IN THE LOWER 60S. SOUTHWEST WINDS 5 TO  
10 MPH.    
FRIDAY AND FRIDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE UPPER 50S.  
HIGHS IN THE LOWER 80S. WEST WINDS 5 TO 10 MPH.    
SATURDAY
 
MOSTLY SUNNY. HIGHS IN THE LOWER 70S. NORTH WINDS  
AROUND 5 MPH, BECOMING SOUTHEAST IN THE AFTERNOON.    
SATURDAY NIGHT AND SUNDAY
 
MOSTLY CLOUDY. LOWS IN THE MID 50S.  
HIGHS IN THE LOWER 70S. EAST WINDS 5 TO 10 MPH.    
SUNDAY NIGHT AND MONDAY
 
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE MID 50S. HIGHS AROUND 70. SOUTHEAST WINDS  
5 TO 10 MPH.  
 

 
 
RIZ005-212000-  
BRISTOL RI-  
INCLUDING THE CITIES OF BARRINGTON, BRISTOL, AND WARREN  
409 AM EDT TUE MAY 21 2024  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY PCLDY MCLEAR  
PRECIP TYPE NONE NONE NONE  
CHANCE PRECIP (%)  
TEMP (24H TREND) 73 (0) 55 (+4) 79  
RH % (24H TREND) 57 (+6) 93 (-7) 52  
20FT WND AM(MPH) LGT/VAR SW 6  
20FT WND PM(MPH) S 8 S 7 SW 9  
PRECIP AMOUNT 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT (FT-AGL) 1710 500 2420  
TRANSPORT WND (KTS) S 12 S 11 SW 15  
VENT RATE (KT-FT) 20520 5500 36300  
MAX ADI EARLY 18 GEN POOR 20 GEN POOR 29 FAIR  
MAX ADI LATE 24 FAIR 12 POOR 35 FAIR  
MAX LVORI EARLY 3 5 2  
MAX LVORI LATE 3 5 2  
MIN VSBY EARLY  
MIN VSBY LATE  
SUNSHINE HOURS N/A N/A N/A  
CWR 0 0 0  
LAL NO TSTMS NO TSTMS NO TSTMS  
HAINES INDEX 4 4 5  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7
 
   
WEDNESDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE UPPER 50S.  
SOUTHWEST WINDS 5 TO 10 MPH.    
THURSDAY
 
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE  
UPPER 70S. SOUTHWEST WINDS 5 TO 10 MPH.    
THURSDAY NIGHT
 
MOSTLY CLOUDY WITH SHOWERS LIKELY AND A CHANCE  
OF THUNDERSTORMS. LOWS IN THE LOWER 60S. SOUTHWEST WINDS 5 TO  
10 MPH.    
FRIDAY AND FRIDAY NIGHT
 
PARTLY CLOUDY. LOWS AROUND 60. HIGHS  
AROUND 80. WEST WINDS 5 TO 10 MPH.    
SATURDAY
 
MOSTLY SUNNY. HIGHS IN THE LOWER 70S. NORTHWEST WINDS  
AROUND 5 MPH, BECOMING SOUTH IN THE AFTERNOON.    
SATURDAY NIGHT AND SUNDAY
 
MOSTLY CLOUDY. LOWS IN THE MID 50S.  
HIGHS AROUND 70. EAST WINDS 5 TO 10 MPH.    
SUNDAY NIGHT AND MONDAY
 
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE MID 50S. HIGHS IN THE UPPER 60S. SOUTHEAST  
WINDS 5 TO 10 MPH.  
 

 
 
RIZ006-212000-  
WASHINGTON RI-  
INCLUDING THE CITIES OF KINGSTON, NARRAGANSETT, RICHMOND,  
AND WESTERLY  
409 AM EDT TUE MAY 21 2024  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY PCLDY MCLEAR  
PRECIP TYPE NONE NONE NONE  
CHANCE PRECIP (%)  
TEMP (24H TREND) 71 (+3) 53 (+2) 78  
RH % (24H TREND) 59 (+2) 96 (-4) 52  
20FT WND AM(MPH) LGT/VAR SW 6  
20FT WND PM(MPH) SW 8 SW 6 SW 9  
PRECIP AMOUNT 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT (FT-AGL) 2090 370 2650  
TRANSPORT WND (KTS) SW 12 SW 11 SW 16  
VENT RATE (KT-FT) 25080 4070 42400  
MAX ADI EARLY 16 GEN POOR 20 GEN POOR 32 FAIR  
MAX ADI LATE 25 FAIR 9 POOR 37 FAIR  
MAX LVORI EARLY 3 6 2  
MAX LVORI LATE 3 6 2  
MIN VSBY EARLY  
MIN VSBY LATE  
SUNSHINE HOURS N/A N/A N/A  
CWR 0 0 0  
LAL NO TSTMS NO TSTMS NO TSTMS  
HAINES INDEX 4 4 4  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7
 
   
WEDNESDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE UPPER 50S.  
SOUTHWEST WINDS 5 TO 10 MPH.    
THURSDAY
 
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE  
MID 70S. SOUTHWEST WINDS 5 TO 10 MPH.    
THURSDAY NIGHT
 
MOSTLY CLOUDY WITH SHOWERS LIKELY AND A CHANCE  
OF THUNDERSTORMS. LOWS IN THE UPPER 50S. SOUTHWEST WINDS 5 TO  
10 MPH.    
FRIDAY AND FRIDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE UPPER 50S.  
HIGHS IN THE UPPER 70S. WEST WINDS 5 TO 10 MPH.    
SATURDAY
 
MOSTLY SUNNY. HIGHS IN THE LOWER 70S. NORTH WINDS  
AROUND 5 MPH, BECOMING SOUTH IN THE AFTERNOON.    
SATURDAY NIGHT AND SUNDAY
 
MOSTLY CLOUDY. LOWS IN THE MID 50S.  
HIGHS AROUND 70. EAST WINDS 5 TO 10 MPH.    
SUNDAY NIGHT AND MONDAY
 
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE LOWER 50S. HIGHS IN THE UPPER 60S. SOUTHEAST  
WINDS 5 TO 10 MPH.  
 

 
 
RIZ007-212000-  
NEWPORT RI-  
INCLUDING THE CITIES OF NEWPORT, PORTSMOUTH, AND TIVERTON  
409 AM EDT TUE MAY 21 2024  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY PCLDY MCLEAR  
PRECIP TYPE NONE NONE NONE  
CHANCE PRECIP (%)  
TEMP (24H TREND) 67 (-1) 53 (+3) 73  
RH % (24H TREND) 65 (+4) 100 (0) 57  
20FT WND AM(MPH) LGT/VAR SW 7  
20FT WND PM(MPH) S 8 SW 7 SW 9  
PRECIP AMOUNT 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT (FT-AGL) 1310 410 1360  
TRANSPORT WND (KTS) S 11 SW 13 SW 15  
VENT RATE (KT-FT) 14410 5330 20400  
MAX ADI EARLY 16 GEN POOR 21 FAIR 22 FAIR  
MAX ADI LATE 22 FAIR 11 POOR 23 FAIR  
MAX LVORI EARLY 3 5 3  
MAX LVORI LATE 3 5 3  
MIN VSBY EARLY  
MIN VSBY LATE  
SUNSHINE HOURS N/A N/A N/A  
CWR 0 0 0  
LAL NO TSTMS NO TSTMS NO TSTMS  
HAINES INDEX 4 4 4  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7
 
   
WEDNESDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE UPPER 50S.  
SOUTHWEST WINDS 10 TO 15 MPH.    
THURSDAY
 
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE  
LOWER 70S. SOUTHWEST WINDS 10 TO 15 MPH.    
THURSDAY NIGHT
 
MOSTLY CLOUDY WITH SHOWERS LIKELY AND A CHANCE  
OF THUNDERSTORMS. LOWS IN THE UPPER 50S. SOUTHWEST WINDS 5 TO  
10 MPH.    
FRIDAY
 
MOSTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE MID  
70S. SOUTHWEST WINDS 5 TO 10 MPH.    
FRIDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE UPPER 50S. WEST WINDS  
5 TO 10 MPH.    
SATURDAY
 
MOSTLY SUNNY. HIGHS AROUND 70. NORTHWEST WINDS AROUND  
5 MPH, BECOMING SOUTH IN THE AFTERNOON.    
SATURDAY NIGHT AND SUNDAY
 
MOSTLY CLOUDY. LOWS IN THE MID 50S.  
HIGHS IN THE UPPER 60S. EAST WINDS 5 TO 10 MPH.    
SUNDAY NIGHT AND MONDAY
 
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE MID 50S. HIGHS IN THE MID 60S. SOUTHEAST  
WINDS 5 TO 10 MPH.  
 

 
 
RIZ008-212000-  
BLOCK ISLAND RI-  
INCLUDING THE CITY OF NEW SHOREHAM  
409 AM EDT TUE MAY 21 2024  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY PCLDY PCLDY  
PRECIP TYPE NONE NONE NONE  
CHANCE PRECIP (%)  
TEMP (24H TREND) 59 (+1) 52 (+3) 62  
RH % (24H TREND) 80 (-1) 96 (-4) 81  
20FT WND AM(MPH) SW 5 SW 10  
20FT WND PM(MPH) SW 10 SW 10 SW 11 G17  
PRECIP AMOUNT 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT (FT-AGL) 680 430 550  
TRANSPORT WND (KTS) SW 8 SW 15 SW 17  
VENT RATE (KT-FT) 5440 6450 9350  
MAX ADI EARLY 9 POOR 19 GEN POOR 21 FAIR  
MAX ADI LATE 16 GEN POOR 19 GEN POOR 17 GEN POOR  
MAX LVORI EARLY 5 5 4  
MAX LVORI LATE 5 5 4  
MIN VSBY EARLY  
MIN VSBY LATE  
SUNSHINE HOURS N/A N/A N/A  
CWR 0 0 0  
LAL NO TSTMS NO TSTMS NO TSTMS  
HAINES INDEX 4 4 4  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7
 
   
WEDNESDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE MID 50S. SOUTHWEST  
WINDS AROUND 10 MPH.    
THURSDAY
 
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE  
LOWER 60S. SOUTHWEST WINDS 10 TO 15 MPH.    
THURSDAY NIGHT
 
MOSTLY CLOUDY WITH SHOWERS LIKELY AND A CHANCE  
OF THUNDERSTORMS. LOWS IN THE MID 50S. SOUTHWEST WINDS 5 TO  
10 MPH.    
FRIDAY
 
MOSTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE  
UPPER 60S. SOUTHWEST WINDS 5 TO 10 MPH.    
FRIDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE MID 50S. SOUTHWEST  
WINDS 5 TO 10 MPH.    
SATURDAY
 
MOSTLY SUNNY. HIGHS IN THE LOWER 60S. NORTH WINDS  
AROUND 5 MPH, BECOMING SOUTHEAST IN THE AFTERNOON.    
SATURDAY NIGHT
 
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN  
THE MID 50S. SOUTHEAST WINDS AROUND 5 MPH.    
SUNDAY
 
PARTLY SUNNY. HIGHS IN THE LOWER 60S. EAST WINDS 5 TO  
10 MPH.    
SUNDAY NIGHT AND MONDAY
 
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE MID 50S. HIGHS IN THE LOWER 60S. SOUTHEAST  
WINDS 5 TO 10 MPH.  
 

 
 
MAZ017-212000-  
NORTHERN BRISTOL MA-  
INCLUDING THE CITIES OF ATTLEBORO, BERKLEY, EASTON, MANSFIELD,  
REHOBOTH, AND TAUNTON  
409 AM EDT TUE MAY 21 2024  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY PCLDY MCLEAR  
PRECIP TYPE NONE NONE NONE  
CHANCE PRECIP (%)  
TEMP (24H TREND) 79 (+9) 55 (+5) 84  
RH % (24H TREND) 50 (-7) 93 (-7) 47  
20FT WND AM(MPH) LGT/VAR SW 5  
20FT WND PM(MPH) S 6 S 5 SW 7  
PRECIP AMOUNT 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT (FT-AGL) 3240 500 4950  
TRANSPORT WND (KTS) S 11 SW 12 SW 16  
VENT RATE (KT-FT) 35640 6000 79200  
MAX ADI EARLY 22 FAIR 23 FAIR 45 GEN GOOD  
MAX ADI LATE 39 FAIR 9 POOR 79 GOOD  
MAX LVORI EARLY 2 5 1  
MAX LVORI LATE 2 5 1  
MIN VSBY EARLY  
MIN VSBY LATE  
SUNSHINE HOURS N/A N/A N/A  
CWR 0 0 0  
LAL NO TSTMS NO TSTMS NO TSTMS  
HAINES INDEX 4 4 4  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7
 
   
WEDNESDAY NIGHT
 
MOSTLY CLEAR. LOWS AROUND 60. SOUTHWEST WINDS  
5 TO 10 MPH.    
THURSDAY
 
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE  
MID 80S. SOUTHWEST WINDS 5 TO 10 MPH.    
THURSDAY NIGHT
 
MOSTLY CLOUDY WITH SHOWERS LIKELY AND A CHANCE  
OF THUNDERSTORMS. LOWS IN THE LOWER 60S. SOUTHWEST WINDS 5 TO  
10 MPH.    
FRIDAY
 
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. WEST WINDS AROUND  
5 MPH.    
FRIDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE UPPER 50S. WEST WINDS  
AROUND 5 MPH.    
SATURDAY
 
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTHWEST WINDS  
AROUND 5 MPH, BECOMING SOUTHWEST AROUND 5 MPH IN THE AFTERNOON.    
SATURDAY NIGHT AND SUNDAY
 
MOSTLY CLOUDY. LOWS IN THE MID 50S.  
HIGHS IN THE LOWER 70S. EAST WINDS AROUND 5 MPH.    
SUNDAY NIGHT AND MONDAY
 
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE LOWER 50S. HIGHS IN THE LOWER 70S. SOUTHEAST  
WINDS 5 TO 10 MPH.  
 

 
 
MAZ018-212000-  
WESTERN PLYMOUTH MA-  
INCLUDING THE CITIES OF BRIDGEWATER, BROCKTON, CARVER,  
MIDDLEBORO, AND PEMBROKE  
409 AM EDT TUE MAY 21 2024  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY PCLDY MCLEAR  
PRECIP TYPE NONE NONE NONE  
CHANCE PRECIP (%)  
TEMP (24H TREND) 79 (+13) 55 (+7) 84  
RH % (24H TREND) 50 (-9) 93 (-7) 47  
20FT WND AM(MPH) LGT/VAR SW 5  
20FT WND PM(MPH) S 7 SW 6 SW 7  
PRECIP AMOUNT 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT (FT-AGL) 3110 410 4490  
TRANSPORT WND (KTS) S 12 SW 13 SW 17  
VENT RATE (KT-FT) 37320 5330 76330  
MAX ADI EARLY 23 FAIR 24 FAIR 44 GEN GOOD  
MAX ADI LATE 37 FAIR 10 POOR 79 GOOD  
MAX LVORI EARLY 2 5 1  
MAX LVORI LATE 2 5 1  
MIN VSBY EARLY  
MIN VSBY LATE  
SUNSHINE HOURS N/A N/A N/A  
CWR 0 0 0  
LAL NO TSTMS NO TSTMS NO TSTMS  
HAINES INDEX 4 4 4  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7
 
   
WEDNESDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE UPPER 50S. SOUTHWEST  
WINDS 5 TO 10 MPH.    
THURSDAY
 
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE  
LOWER 80S. SOUTHWEST WINDS 5 TO 10 MPH.    
THURSDAY NIGHT
 
MOSTLY CLOUDY WITH SHOWERS LIKELY AND A CHANCE  
OF THUNDERSTORMS. LOWS AROUND 60. SOUTHWEST WINDS 5 TO 10 MPH.    
FRIDAY
 
MOSTLY SUNNY. HIGHS IN THE LOWER 80S. WEST WINDS AROUND  
5 MPH.    
FRIDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE UPPER 50S. WEST WINDS  
AROUND 5 MPH.    
SATURDAY
 
MOSTLY SUNNY. HIGHS IN THE MID 70S. NORTHWEST WINDS  
AROUND 5 MPH, BECOMING SOUTHEAST AROUND 5 MPH IN THE AFTERNOON.    
SATURDAY NIGHT AND SUNDAY
 
MOSTLY CLOUDY. LOWS IN THE MID 50S.  
HIGHS IN THE UPPER 60S. EAST WINDS AROUND 5 MPH.    
SUNDAY NIGHT AND MONDAY
 
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE LOWER 50S. HIGHS IN THE UPPER 60S. SOUTHEAST  
WINDS 5 TO 10 MPH.  
 

 
 
MAZ019-212000-  
EASTERN PLYMOUTH MA-  
INCLUDING THE CITIES OF COHASSET, HINGHAM, MARSHFIELD, PLYMOUTH,  
AND SCITUATE  
409 AM EDT TUE MAY 21 2024  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY PCLDY MCLEAR  
PRECIP TYPE NONE NONE NONE  
CHANCE PRECIP (%)  
TEMP (24H TREND) 78 (+18) 54 (+5) 81  
RH % (24H TREND) 50 (-20) 96 (-4) 47  
20FT WND AM(MPH) LGT/VAR SW 7  
20FT WND PM(MPH) S 8 SW 8 SW 8 G17  
PRECIP AMOUNT 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT (FT-AGL) 2370 390 3630  
TRANSPORT WND (KTS) S 13 SW 13 SW 16  
VENT RATE (KT-FT) 30810 5070 58080  
MAX ADI EARLY 17 GEN POOR 17 GEN POOR 31 FAIR  
MAX ADI LATE 21 FAIR 15 GEN POOR 38 FAIR  
MAX LVORI EARLY 3 5 2  
MAX LVORI LATE 3 5 2  
MIN VSBY EARLY  
MIN VSBY LATE  
SUNSHINE HOURS N/A N/A N/A  
CWR 0 0 0  
LAL NO TSTMS NO TSTMS NO TSTMS  
HAINES INDEX 4 4 5  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7
 
   
WEDNESDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE UPPER 50S. SOUTHWEST  
WINDS 10 TO 15 MPH.    
THURSDAY AND THURSDAY NIGHT
 
MOSTLY CLOUDY. A CHANCE OF  
SHOWERS. LOWS AROUND 60. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS  
10 TO 15 MPH.    
FRIDAY
 
MOSTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE  
UPPER 70S. SOUTHWEST WINDS 5 TO 10 MPH.    
FRIDAY NIGHT
 
MOSTLY CLEAR. LOWS IN THE UPPER 50S. WEST WINDS  
5 TO 10 MPH.    
SATURDAY
 
MOSTLY SUNNY. HIGHS AROUND 70. NORTHWEST WINDS AROUND  
5 MPH, BECOMING EAST IN THE AFTERNOON.    
SATURDAY NIGHT AND SUNDAY
 
MOSTLY CLOUDY. LOWS IN THE MID 50S.  
HIGHS IN THE MID 60S. EAST WINDS 5 TO 10 MPH.    
SUNDAY NIGHT AND MONDAY
 
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE LOWER 50S. HIGHS IN THE MID 60S. SOUTHEAST  
WINDS 5 TO 10 MPH.  
 

 
 
MAZ020-212000-  
SOUTHERN BRISTOL MA-  
INCLUDING THE CITIES OF ACUSHNET, FALL RIVER, NEW BEDFORD,  
SWANSEA, AND WESTPORT  
409 AM EDT TUE MAY 21 2024  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY PCLDY MCLEAR  
PRECIP TYPE NONE NONE NONE  
CHANCE PRECIP (%)  
TEMP (24H TREND) 73 (+5) 54 (+5) 79  
RH % (24H TREND) 57 (-5) 100 (0) 52  
20FT WND AM(MPH) LGT/VAR SW 7  
20FT WND PM(MPH) S 7 SW 7 SW 9 G17  
PRECIP AMOUNT 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT (FT-AGL) 1920 400 2500  
TRANSPORT WND (KTS) SW 13 SW 13 SW 17  
VENT RATE (KT-FT) 24960 5200 42500  
MAX ADI EARLY 18 GEN POOR 22 FAIR 30 FAIR  
MAX ADI LATE 26 FAIR 11 POOR 35 FAIR  
MAX LVORI EARLY 3 5 2  
MAX LVORI LATE 3 5 2  
MIN VSBY EARLY  
MIN VSBY LATE  
SUNSHINE HOURS N/A N/A N/A  
CWR 0 0 0  
LAL NO TSTMS NO TSTMS NO TSTMS  
HAINES INDEX 4 4 5  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7
 
   
WEDNESDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE UPPER 50S.  
SOUTHWEST WINDS 10 TO 15 MPH.    
THURSDAY AND THURSDAY NIGHT
 
MOSTLY CLOUDY. A CHANCE OF  
SHOWERS. LOWS IN THE UPPER 50S. HIGHS IN THE MID 70S. SOUTHWEST  
WINDS 10 TO 15 MPH.    
FRIDAY
 
MOSTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE  
UPPER 70S. SOUTHWEST WINDS 5 TO 10 MPH.    
FRIDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE UPPER 50S. WEST WINDS  
5 TO 10 MPH.    
SATURDAY
 
MOSTLY SUNNY. HIGHS IN THE LOWER 70S. NORTHWEST WINDS  
AROUND 5 MPH, BECOMING SOUTH IN THE AFTERNOON.    
SATURDAY NIGHT AND SUNDAY
 
MOSTLY CLOUDY. LOWS IN THE MID 50S.  
HIGHS IN THE UPPER 60S. EAST WINDS 5 TO 10 MPH.    
SUNDAY NIGHT AND MONDAY
 
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE MID 50S. HIGHS IN THE UPPER 60S. SOUTHEAST  
WINDS 5 TO 10 MPH.  
 

 
 
MAZ021-212000-  
SOUTHERN PLYMOUTH MA-  
INCLUDING THE CITIES OF MARION, MATTAPOISETT, ROCHESTER,  
AND WAREHAM  
409 AM EDT TUE MAY 21 2024  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY PCLDY MCLEAR  
PRECIP TYPE NONE NONE NONE  
CHANCE PRECIP (%)  
TEMP (24H TREND) 71 (+5) 54 (+6) 77  
RH % (24H TREND) 59 (+12) 96 (-4) 52  
20FT WND AM(MPH) LGT/VAR SW 7  
20FT WND PM(MPH) SW 8 SW 7 SW 9 G17  
PRECIP AMOUNT 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT (FT-AGL) 1740 440 2280  
TRANSPORT WND (KTS) S 13 SW 13 SW 18  
VENT RATE (KT-FT) 22620 5720 41040  
MAX ADI EARLY 19 GEN POOR 24 FAIR 31 FAIR  
MAX ADI LATE 27 FAIR 13 GEN POOR 36 FAIR  
MAX LVORI EARLY 3 5 2  
MAX LVORI LATE 3 5 2  
MIN VSBY EARLY  
MIN VSBY LATE  
SUNSHINE HOURS N/A N/A N/A  
CWR 0 0 0  
LAL NO TSTMS NO TSTMS NO TSTMS  
HAINES INDEX 4 4 5  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7
 
   
WEDNESDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE UPPER 50S.  
SOUTHWEST WINDS 5 TO 10 MPH.    
THURSDAY AND THURSDAY NIGHT
 
MOSTLY CLOUDY. A CHANCE OF  
SHOWERS. LOWS IN THE UPPER 50S. HIGHS IN THE MID 70S. SOUTHWEST  
WINDS 5 TO 10 MPH.    
FRIDAY
 
MOSTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE  
UPPER 70S. SOUTHWEST WINDS 5 TO 10 MPH.    
FRIDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE MID 50S. WEST WINDS  
5 TO 10 MPH.    
SATURDAY
 
MOSTLY SUNNY. HIGHS IN THE LOWER 70S. NORTHWEST WINDS  
AROUND 5 MPH, BECOMING SOUTHEAST IN THE AFTERNOON.    
SATURDAY NIGHT AND SUNDAY
 
MOSTLY CLOUDY. LOWS IN THE MID 50S.  
HIGHS IN THE UPPER 60S. EAST WINDS 5 TO 10 MPH.    
SUNDAY NIGHT AND MONDAY
 
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE LOWER 50S. HIGHS IN THE UPPER 60S. SOUTHEAST  
WINDS 5 TO 10 MPH.  
 

 
 
MAZ022-212000-  
BARNSTABLE MA-  
INCLUDING THE CITIES OF BOURNE, CHATHAM, FALMOUTH, HYANNIS,  
PROVINCETOWN, AND WELLFLEET  
409 AM EDT TUE MAY 21 2024  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY PCLDY MCLEAR  
PRECIP TYPE NONE NONE NONE  
CHANCE PRECIP (%)  
TEMP (24H TREND) 66 (+7) 52 (+4) 69  
RH % (24H TREND) 68 (+3) 100 (0) 61  
20FT WND AM(MPH) LGT/VAR SW 9  
20FT WND PM(MPH) SW 9 G17 SW 9 SW 9 G18  
PRECIP AMOUNT 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT (FT-AGL) 1400 380 1180  
TRANSPORT WND (KTS) SW 14 SW 17 SW 20  
VENT RATE (KT-FT) 19600 6460 23600  
MAX ADI EARLY 15 GEN POOR 21 FAIR 22 FAIR  
MAX ADI LATE 22 FAIR 17 GEN POOR 24 FAIR  
MAX LVORI EARLY 4 5 3  
MAX LVORI LATE 4 5 3  
MIN VSBY EARLY  
MIN VSBY LATE  
SUNSHINE HOURS N/A N/A N/A  
CWR 0 0 0  
LAL NO TSTMS NO TSTMS NO TSTMS  
HAINES INDEX 4 4 5  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7
 
   
WEDNESDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE MID 50S. SOUTHWEST  
WINDS 10 TO 15 MPH.    
THURSDAY
 
PARTLY SUNNY. HIGHS AROUND 70. SOUTHWEST WINDS 10 TO  
15 MPH.    
THURSDAY NIGHT
 
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN  
THE UPPER 50S. SOUTHWEST WINDS 10 TO 15 MPH.    
FRIDAY
 
MOSTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE  
LOWER 70S. SOUTHWEST WINDS 5 TO 10 MPH.    
FRIDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE MID 50S. SOUTHWEST  
WINDS 5 TO 10 MPH.    
SATURDAY
 
MOSTLY SUNNY. HIGHS IN THE MID 60S. NORTHWEST WINDS  
AROUND 5 MPH, BECOMING SOUTHEAST IN THE AFTERNOON.    
SATURDAY NIGHT THROUGH SUNDAY NIGHT
 
MOSTLY CLOUDY. LOWS IN THE  
LOWER 50S. HIGHS IN THE LOWER 60S. EAST WINDS 5 TO 10 MPH.    
MONDAY
 
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. HIGHS IN THE  
LOWER 60S. SOUTHEAST WINDS 5 TO 10 MPH.  
 

 
 
MAZ023-212000-  
DUKES MA-  
INCLUDING THE CITIES OF EDGARTOWN, OAK BLUFFS, AND VINEYARD HAVEN  
409 AM EDT TUE MAY 21 2024  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY PCLDY PCLDY  
PRECIP TYPE NONE NONE NONE  
CHANCE PRECIP (%)  
TEMP (24H TREND) 63 (+1) 51 (+4) 66  
RH % (24H TREND) 70 (+5) 100 (0) 65  
20FT WND AM(MPH) LGT/VAR SW 9  
20FT WND PM(MPH) SW 8 SW 8 SW 11 G18  
PRECIP AMOUNT 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT (FT-AGL) 980 430 870  
TRANSPORT WND (KTS) SW 14 SW 17 SW 17  
VENT RATE (KT-FT) 13720 7310 14790  
MAX ADI EARLY 8 POOR 16 GEN POOR 22 FAIR  
MAX ADI LATE 19 GEN POOR 18 GEN POOR 17 GEN POOR  
MAX LVORI EARLY 4 5 4  
MAX LVORI LATE 4 5 4  
MIN VSBY EARLY  
MIN VSBY LATE  
SUNSHINE HOURS N/A N/A N/A  
CWR 0 0 0  
LAL NO TSTMS NO TSTMS NO TSTMS  
HAINES INDEX 4 4 5  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7
 
   
WEDNESDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE MID 50S. SOUTHWEST  
WINDS 10 TO 15 MPH.    
THURSDAY
 
PARTLY SUNNY. HIGHS IN THE MID 60S. SOUTHWEST WINDS  
10 TO 15 MPH.    
THURSDAY NIGHT
 
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN  
THE MID 50S. SOUTHWEST WINDS 10 TO 15 MPH.    
FRIDAY
 
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS AROUND 70.  
SOUTHWEST WINDS 5 TO 10 MPH.    
FRIDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE MID 50S. SOUTHWEST  
WINDS 5 TO 10 MPH.    
SATURDAY
 
MOSTLY SUNNY. HIGHS IN THE MID 60S. NORTH WINDS  
AROUND 5 MPH, BECOMING SOUTHEAST IN THE AFTERNOON.    
SATURDAY NIGHT AND SUNDAY
 
MOSTLY CLOUDY. LOWS IN THE MID 50S.  
HIGHS IN THE MID 60S. EAST WINDS 5 TO 10 MPH.    
SUNDAY NIGHT AND MONDAY
 
MOSTLY CLOUDY WITH A CHANCE OF  
SHOWERS. LOWS IN THE LOWER 50S. HIGHS IN THE MID 60S. SOUTHEAST  
WINDS 5 TO 10 MPH.  
 

 
 
MAZ024-212000-  
NANTUCKET MA-  
INCLUDING THE CITY OF NANTUCKET  
409 AM EDT TUE MAY 21 2024  
 
TODAY TONIGHT WED  
 
CLOUD COVER PCLDY PCLDY PCLDY  
PRECIP TYPE NONE NONE NONE  
CHANCE PRECIP (%)  
TEMP (24H TREND) 59 (+3) 50 (+3) 62  
RH % (24H TREND) 77 (+5) 100 (0) 75  
20FT WND AM(MPH) LGT/VAR SW 11 G17  
20FT WND PM(MPH) S 8 SW 8 SW 13 G19  
PRECIP AMOUNT 0.00 0.00 0.00  
PRECIP DURATION  
PRECIP BEGIN  
PRECIP END  
MIXING HGT (FT-AGL) 960 510 710  
TRANSPORT WND (KTS) W 3 SW 19 SW 20  
VENT RATE (KT-FT) 2880 9690 14200  
MAX ADI EARLY 6 VERY POOR 16 GEN POOR 24 FAIR  
MAX ADI LATE 17 GEN POOR 20 GEN POOR 19 GEN POOR  
MAX LVORI EARLY 5 5 4  
MAX LVORI LATE 5 5 4  
MIN VSBY EARLY  
MIN VSBY LATE  
SUNSHINE HOURS N/A N/A N/A  
CWR 0 0 0  
LAL NO TSTMS NO TSTMS NO TSTMS  
HAINES INDEX 5 4 5  
 
REMARKS...NONE.  
   
FORECAST FOR DAYS 3 THROUGH 7
 
   
WEDNESDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE MID 50S. SOUTHWEST  
WINDS 10 TO 15 MPH.    
THURSDAY
 
PARTLY SUNNY. HIGHS IN THE LOWER 60S. SOUTHWEST WINDS  
10 TO 15 MPH.    
THURSDAY NIGHT
 
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. LOWS IN  
THE MID 50S. SOUTHWEST WINDS 10 TO 15 MPH.    
FRIDAY
 
PARTLY SUNNY WITH A CHANCE OF SHOWERS. HIGHS IN THE MID  
60S. SOUTHWEST WINDS 5 TO 10 MPH.    
FRIDAY NIGHT
 
PARTLY CLOUDY. LOWS IN THE MID 50S. SOUTHWEST  
WINDS 5 TO 10 MPH.    
SATURDAY
 
MOSTLY SUNNY. HIGHS IN THE LOWER 60S. NORTHWEST WINDS  
5 TO 10 MPH, BECOMING SOUTHEAST IN THE AFTERNOON.    
SATURDAY NIGHT THROUGH SUNDAY NIGHT
 
MOSTLY CLOUDY. LOWS IN THE  
LOWER 50S. HIGHS AROUND 60. EAST WINDS 5 TO 10 MPH.    
MONDAY
 
MOSTLY CLOUDY WITH A CHANCE OF SHOWERS. HIGHS AROUND  
60. SOUTHEAST WINDS 10 TO 15 MPH.  
 

 
   
OUTLOOK 8 TO 14 DAYS
 
 
TEMPERATURES NEAR NORMAL. PRECIPITATION ABOVE NORMAL.  
 

 
 
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