015
FNUS51 KBOX 172007
FWFBOX
FIRE WEATHER PLANNING FORECAST FOR SOUTHERN NEW ENGLAND
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
407 PM EDT WED SEP 17 2025
DISCUSSION
SOME SHOWERS ARE POSSIBLE TODAY ALONG THE SOUTH COAST. CHANCES
FOR RAIN INCREASE NORTHWARD TONIGHT. THE GREATEST CHANCE FOR
WETTING RAINFALL THROUGH THURSDAY MORNING WILL BE TOWARDS THE
CAPE AND ISLANDS.
MINIMUM AFTERNOON RELATIVE HUMIDITY VALUES BETWEEN 45 AND
75 PERCENT BOTH TODAY AND TOMORROW WITH THE HIGHEST VALUES ALONG
THE COASTS, ESPECIALLY THE CAPE AND ISLANDS.
OUTLOOK...FRIDAY THROUGH MONDAY
AN EXTENDED PERIOD OF DRY WEATHER CONTINUES INTO EARLY NEXT WEEK.
A COLD FRONT WILL CROSS OUR REGION FRIDAY, BRINGING COOLER AND
DRIER CONDITIONS FOR THIS WEEKEND BEFORE A WARMING TREND KICKS
OFF EARLY NEXT WEEK. IT WILL BE BREEZY FRIDAY WITH GUSTS UP TO
20 MPH. MIN RELATIVE HUMIDITY VALUES RANGE FROM 37-60 PERCENT.
SATURDAY WILL LIKELY BE THE DRIEST OF THE DAYS WITH MIN RELATIVE
HUMIDITY VALUES 26-40 PERCENT, ALTHOUGH WINDS SHOULD STAY ON THE
LIGHTER SIDE (LESS THAN 10 MPH).
MAZ015-180800-
SUFFOLK MA-
INCLUDING THE CITIES OF BOSTON, CHELSEA, REVERE, AND WINTHROP
407 PM EDT WED SEP 17 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY CLEAR MCLEAR
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 60 40 10
CHANCE OF THUNDER (%) 30 20 0 0
TEMP (24H TREND) 59 (+4) 79 (+8) 60 77
RH % (24H TREND) 100 (0) 62 (+1) 97 49
20FT WND AM(MPH) LGT/VAR NW 6
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR NW 7
PRECIP AMOUNT 0.16 0.02 0.00 0.00
PRECIP DURATION 3 0
PRECIP BEGIN 6 PM CONTINUING
PRECIP END CONTINUING 9 AM
MIXING HGT (FT-AGL) 400 2890 350 5510
TRANSPORT WND (KTS) NE 5 SW 5 NW 9 NW 11
VENT RATE (KT-FT) 2000 14450 3150 60610
MAX ADI EARLY 21 FAIR 6 VERY POOR 7 POOR 47 GEN GOOD
MAX ADI LATE 3 VERY POOR 11 POOR 5 VERY POOR 41 GEN GOOD
MAX LVORI EARLY 10 4 5 1
MAX LVORI LATE 10 4 5 1
MIN VSBY EARLY 9 1 FOG 9 9
MIN VSBY LATE 1 FOG 9 9 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 40 30 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
CLEAR. LOWS IN THE LOWER 50S. NORTH WINDS 5 TO
10 MPH.
SATURDAY
SUNNY. HIGHS IN THE MID 60S. NORTHEAST WINDS 5 TO
10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 40S. SOUTHEAST
WINDS AROUND 5 MPH, BECOMING SOUTHWEST AFTER MIDNIGHT.
SUNDAY
SUNNY. HIGHS IN THE UPPER 60S. SOUTHWEST WINDS AROUND
5 MPH, BECOMING SOUTHEAST IN THE AFTERNOON.
SUNDAY NIGHT AND MONDAY
PARTLY CLOUDY. LOWS IN THE LOWER 50S.
HIGHS IN THE MID 70S. SOUTH WINDS 5 TO 10 MPH.
MONDAY NIGHT AND TUESDAY
MOSTLY CLEAR. LOWS IN THE UPPER 50S.
HIGHS IN THE UPPER 70S. SOUTHWEST WINDS 5 TO 10 MPH.
TUESDAY NIGHT AND WEDNESDAY
PARTLY CLOUDY. LOWS IN THE LOWER
60S. HIGHS AROUND 80. SOUTHWEST WINDS 5 TO 10 MPH.
MAZ016-180800-
EASTERN NORFOLK MA-
INCLUDING THE CITIES OF BRAINTREE, MILTON, QUINCY, AND WEYMOUTH
407 PM EDT WED SEP 17 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY CLEAR MCLEAR
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 60 40 10
CHANCE OF THUNDER (%) 30 20 0 0
TEMP (24H TREND) 59 (+5) 78 (+7) 59 77
RH % (24H TREND) 100 (0) 64 (0) 97 50
20FT WND AM(MPH) LGT/VAR NW 5
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR N 6
PRECIP AMOUNT 0.10 0.00 0.00 0.00
PRECIP DURATION 3
PRECIP BEGIN 6 PM
PRECIP END 6 AM
MIXING HGT (FT-AGL) 320 2960 310 5200
TRANSPORT WND (KTS) NE 5 SW 4 NW 8 NW 12
VENT RATE (KT-FT) 1600 11840 2480 62400
MAX ADI EARLY 21 FAIR 6 VERY POOR 7 POOR 61 GOOD
MAX ADI LATE 3 VERY POOR 16 GEN POOR 5 VERY POOR 79 GOOD
MAX LVORI EARLY 10 4 6 1
MAX LVORI LATE 10 4 6 1
MIN VSBY EARLY 7 1 FOG 9 9
MIN VSBY LATE 0 FOG 9 9 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 30 10 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 50S. NORTH WINDS
5 TO 10 MPH.
SATURDAY
SUNNY. HIGHS IN THE MID 60S. NORTHEAST WINDS 5 TO
10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 40S. SOUTHEAST
WINDS AROUND 5 MPH, BECOMING SOUTHWEST AFTER MIDNIGHT.
SUNDAY
SUNNY. HIGHS IN THE UPPER 60S. SOUTHWEST WINDS AROUND
5 MPH, BECOMING SOUTHEAST IN THE AFTERNOON.
SUNDAY NIGHT AND MONDAY
PARTLY CLOUDY. LOWS IN THE LOWER 50S.
HIGHS IN THE MID 70S. SOUTH WINDS 5 TO 10 MPH.
MONDAY NIGHT THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS AROUND 60.
HIGHS IN THE UPPER 70S. SOUTHWEST WINDS 5 TO 10 MPH.
MAZ013-180800-
WESTERN NORFOLK MA-
INCLUDING THE CITIES OF BELLINGHAM, DEDHAM, FOXBOROUGH, MEDFIELD,
NORWOOD, STOUGHTON, AND WELLESLEY
407 PM EDT WED SEP 17 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY CLEAR MCLEAR
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 50 40 10
CHANCE OF THUNDER (%) 30 30 0 0
TEMP (24H TREND) 58 (+7) 78 (+5) 57 77
RH % (24H TREND) 100 (0) 60 (+1) 100 47
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR NW 5
PRECIP AMOUNT 0.08 0.01 0.00 0.00
PRECIP DURATION 2 0
PRECIP BEGIN 6 PM CONTINUING
PRECIP END CONTINUING 8 AM
MIXING HGT (FT-AGL) 320 3870 300 5500
TRANSPORT WND (KTS) NE 5 W 6 NW 7 NW 12
VENT RATE (KT-FT) 1600 23220 2100 66000
MAX ADI EARLY 18 GEN POOR 6 VERY POOR 10 POOR 64 GOOD
MAX ADI LATE 3 VERY POOR 32 FAIR 4 VERY POOR 84 GOOD
MAX LVORI EARLY 10 5 7 1
MAX LVORI LATE 10 5 7 1
MIN VSBY EARLY 6 FOG 0 FOG 9 9
MIN VSBY LATE 0 FOG 9 9 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 20 10 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 40S. NORTH WINDS
AROUND 5 MPH.
SATURDAY
SUNNY. HIGHS IN THE UPPER 60S. NORTHEAST WINDS AROUND
5 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 40S. SOUTHEAST
WINDS AROUND 5 MPH IN THE EVENING, BECOMING LIGHT AND VARIABLE.
SUNDAY
SUNNY. HIGHS AROUND 70. SOUTH WINDS AROUND 5 MPH.
SUNDAY NIGHT AND MONDAY
PARTLY CLOUDY. LOWS IN THE UPPER 40S.
HIGHS IN THE MID 70S. SOUTH WINDS AROUND 5 MPH.
MONDAY NIGHT THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS IN THE
UPPER 50S. HIGHS AROUND 80. SOUTHWEST WINDS AROUND 5 MPH.
MAZ014-180800-
SOUTHEAST MIDDLESEX MA-
INCLUDING THE CITIES OF CAMBRIDGE, LEXINGTON, NEWTON, WALTHAM,
AND WOBURN
407 PM EDT WED SEP 17 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY CLEAR MCLEAR
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 50 30 10
CHANCE OF THUNDER (%) 30 20 0 0
TEMP (24H TREND) 58 (+6) 79 (+6) 60 77
RH % (24H TREND) 100 (0) 62 (+5) 87 46
20FT WND AM(MPH) LGT/VAR NW 5
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR NW 7
PRECIP AMOUNT 0.08 0.01 0.00 0.00
PRECIP DURATION 2 0
PRECIP BEGIN 7 PM CONTINUING
PRECIP END CONTINUING 8 AM
MIXING HGT (FT-AGL) 360 4090 290 5590
TRANSPORT WND (KTS) NE 4 W 6 NW 8 NW 12
VENT RATE (KT-FT) 1440 24540 2320 67080
MAX ADI EARLY 20 GEN POOR 7 POOR 9 POOR 58 GEN GOOD
MAX ADI LATE 3 VERY POOR 32 FAIR 5 VERY POOR 49 GEN GOOD
MAX LVORI EARLY 9 4 5 1
MAX LVORI LATE 9 4 5 1
MIN VSBY EARLY 9 1 FOG 9 9
MIN VSBY LATE 1 FOG 9 9 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 30 20 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
CLEAR. LOWS AROUND 50. NORTH WINDS AROUND 5 MPH.
SATURDAY
SUNNY. HIGHS IN THE UPPER 60S. NORTH WINDS AROUND
5 MPH, BECOMING EAST IN THE AFTERNOON.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. SOUTHEAST
WINDS AROUND 5 MPH, BECOMING SOUTHWEST AFTER MIDNIGHT.
SUNDAY
SUNNY. HIGHS IN THE LOWER 70S. SOUTHWEST WINDS AROUND
5 MPH, BECOMING SOUTHEAST AROUND 5 MPH IN THE AFTERNOON.
SUNDAY NIGHT AND MONDAY
PARTLY CLOUDY. LOWS IN THE LOWER 50S.
HIGHS IN THE UPPER 70S. SOUTH WINDS AROUND 5 MPH.
MONDAY NIGHT AND TUESDAY
MOSTLY CLEAR. LOWS IN THE UPPER 50S.
HIGHS IN THE LOWER 80S. SOUTHWEST WINDS AROUND 5 MPH.
TUESDAY NIGHT AND WEDNESDAY
PARTLY CLOUDY. LOWS IN THE LOWER
60S. HIGHS IN THE LOWER 80S. WEST WINDS AROUND 5 MPH.
MAZ007-180800-
EASTERN ESSEX MA-
INCLUDING THE CITIES OF BEVERLY, GLOUCESTER, NEWBURYPORT,
PEABODY, SALEM, AND SAUGUS
407 PM EDT WED SEP 17 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER PCLDY PCLDY MCLEAR MCLEAR
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 60 40 10
CHANCE OF THUNDER (%) 30 20 0 0
TEMP (24H TREND) 57 (+5) 77 (+6) 59 77
RH % (24H TREND) 100 (0) 62 (+3) 100 45
20FT WND AM(MPH) LGT/VAR NW 6
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR NW 6
PRECIP AMOUNT 0.02 0.00 0.00 0.00
PRECIP DURATION 2
PRECIP BEGIN 7 PM
PRECIP END 6 AM
MIXING HGT (FT-AGL) 350 2400 310 4820
TRANSPORT WND (KTS) NE 4 S 5 NW 10 NW 10
VENT RATE (KT-FT) 1400 12000 3100 48200
MAX ADI EARLY 13 GEN POOR 6 VERY POOR 10 POOR 38 FAIR
MAX ADI LATE 3 VERY POOR 10 POOR 5 VERY POOR 46 GEN GOOD
MAX LVORI EARLY 10 4 6 2
MAX LVORI LATE 10 4 6 2
MIN VSBY EARLY 4 FOG 0 FOG 6 FOG 9
MIN VSBY LATE 0 FOG 9 5 FOG 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 10 10 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
CLEAR. LOWS IN THE LOWER 50S. NORTH WINDS 10 TO
15 MPH.
SATURDAY
SUNNY. HIGHS IN THE MID 60S. NORTH WINDS 10 TO
15 MPH, BECOMING EAST 5 TO 10 MPH IN THE AFTERNOON.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. SOUTH WINDS
5 TO 10 MPH, BECOMING SOUTHWEST AFTER MIDNIGHT.
SUNDAY
SUNNY. HIGHS IN THE UPPER 60S. SOUTHWEST WINDS AROUND
5 MPH, BECOMING SOUTH IN THE AFTERNOON.
SUNDAY NIGHT AND MONDAY
PARTLY CLOUDY. LOWS IN THE LOWER 50S.
HIGHS IN THE MID 70S. SOUTH WINDS 10 TO 15 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. SOUTHWEST
WINDS 5 TO 10 MPH.
TUESDAY
SUNNY. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS 5 TO
10 MPH.
TUESDAY NIGHT AND WEDNESDAY
PARTLY CLOUDY. LOWS IN THE LOWER
60S. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS 5 TO 10 MPH.
MAZ006-180800-
WESTERN ESSEX MA-
INCLUDING THE CITIES OF AMESBURY, ANDOVER, HAVERHILL, LAWRENCE,
METHUEN, AND TOPSFIELD
407 PM EDT WED SEP 17 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY MCLEAR MCLEAR
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 50 30 10
CHANCE OF THUNDER (%) 20 20 0 0
TEMP (24H TREND) 56 (+7) 79 (+6) 58 76
RH % (24H TREND) 100 (0) 54 (+1) 96 39
20FT WND AM(MPH) LGT/VAR NW 5
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR NW 6
PRECIP AMOUNT 0.01 0.00 0.00 0.00
PRECIP DURATION 2
PRECIP BEGIN 8 PM
PRECIP END 6 AM
MIXING HGT (FT-AGL) 340 4380 280 5680
TRANSPORT WND (KTS) N 3 W 8 NW 9 NW 12
VENT RATE (KT-FT) 1020 35040 2520 68160
MAX ADI EARLY 17 GEN POOR 10 POOR 9 POOR 72 GOOD
MAX ADI LATE 2 VERY POOR 44 GEN GOOD 5 VERY POOR 90 GOOD
MAX LVORI EARLY 10 3 6 1
MAX LVORI LATE 10 3 6 1
MIN VSBY EARLY 9 0 FOG 7 8
MIN VSBY LATE 0 FOG 9 5 FOG 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 10 10 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
CLEAR. LOWS IN THE UPPER 40S. NORTH WINDS AROUND
5 MPH.
SATURDAY
SUNNY. HIGHS IN THE UPPER 60S. NORTH WINDS AROUND
5 MPH, BECOMING EAST AROUND 5 MPH IN THE AFTERNOON.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. SOUTH WINDS
AROUND 5 MPH, BECOMING SOUTHWEST AFTER MIDNIGHT.
SUNDAY
SUNNY. HIGHS IN THE LOWER 70S. WEST WINDS AROUND 5 MPH,
BECOMING SOUTH AROUND 5 MPH IN THE AFTERNOON.
SUNDAY NIGHT AND MONDAY
PARTLY CLOUDY. LOWS AROUND 50. HIGHS
IN THE MID 70S. SOUTH WINDS AROUND 5 MPH.
MONDAY NIGHT
PARTLY CLOUDY. LOWS IN THE MID 50S. SOUTHWEST
WINDS AROUND 5 MPH.
TUESDAY
SUNNY. HIGHS IN THE LOWER 80S. SOUTHWEST WINDS AROUND
5 MPH.
TUESDAY NIGHT AND WEDNESDAY
PARTLY CLOUDY. LOWS AROUND 60.
HIGHS IN THE LOWER 80S. WEST WINDS AROUND 5 MPH.
MAZ005-180800-
CENTRAL MIDDLESEX MA-
INCLUDING THE CITIES OF BURLINGTON, CHELMSFORD, FRAMINGHAM,
HOPKINTON, LOWELL, AND NATICK
407 PM EDT WED SEP 17 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY CLEAR MCLEAR
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 50 30 10
CHANCE OF THUNDER (%) 30 20 0 0
TEMP (24H TREND) 57 (+8) 79 (+5) 58 77
RH % (24H TREND) 100 (0) 56 (+5) 93 42
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR NW 5
PRECIP AMOUNT 0.01 0.00 0.00 0.00
PRECIP DURATION 2
PRECIP BEGIN 7 PM
PRECIP END 6 AM
MIXING HGT (FT-AGL) 360 4480 300 5630
TRANSPORT WND (KTS) NE 4 W 8 NW 8 NW 12
VENT RATE (KT-FT) 1440 35840 2400 67560
MAX ADI EARLY 18 GEN POOR 8 POOR 9 POOR 68 GOOD
MAX ADI LATE 2 VERY POOR 48 GEN GOOD 4 VERY POOR 86 GOOD
MAX LVORI EARLY 10 4 6 1
MAX LVORI LATE 10 4 6 1
MIN VSBY EARLY 9 1 FOG 8 8
MIN VSBY LATE 0 FOG 9 7 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 10 10 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
CLEAR. LOWS IN THE UPPER 40S. NORTH WINDS 5 TO
10 MPH.
SATURDAY
SUNNY. HIGHS IN THE UPPER 60S. NORTH WINDS AROUND
5 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 40S. SOUTH
WINDS AROUND 5 MPH, BECOMING SOUTHWEST AFTER MIDNIGHT.
SUNDAY
SUNNY. HIGHS IN THE LOWER 70S. SOUTHWEST WINDS AROUND
5 MPH, BECOMING SOUTH AROUND 5 MPH IN THE AFTERNOON.
SUNDAY NIGHT AND MONDAY
PARTLY CLOUDY. LOWS IN THE UPPER 40S.
HIGHS IN THE UPPER 70S. SOUTHWEST WINDS AROUND 5 MPH.
MONDAY NIGHT AND TUESDAY
MOSTLY CLEAR. LOWS IN THE MID 50S.
HIGHS IN THE LOWER 80S. SOUTHWEST WINDS AROUND 5 MPH.
TUESDAY NIGHT AND WEDNESDAY
PARTLY CLOUDY. LOWS AROUND 60.
HIGHS IN THE LOWER 80S. WEST WINDS AROUND 5 MPH.
MAZ012-180800-
SOUTHERN WORCESTER MA-
INCLUDING THE CITIES OF MILFORD, OXFORD, STURBRIDGE, UXBRIDGE,
WESTBOROUGH, AND WORCESTER
407 PM EDT WED SEP 17 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY CLEAR MCLEAR
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 40 30 10
CHANCE OF THUNDER (%) 30 0 0 0
TEMP (24H TREND) 57 (+7) 78 (+4) 57 77
RH % (24H TREND) 100 (0) 57 (+3) 98 47
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR NW 6
PRECIP AMOUNT 0.01 0.00 0.00 0.00
PRECIP DURATION 2
PRECIP BEGIN 6 PM
PRECIP END 6 AM
MIXING HGT (FT-AGL) 320 4110 280 5600
TRANSPORT WND (KTS) NE 4 W 7 NW 8 NW 12
VENT RATE (KT-FT) 1280 28770 2240 67200
MAX ADI EARLY 15 GEN POOR 8 POOR 9 POOR 63 GOOD
MAX ADI LATE 3 VERY POOR 41 GEN GOOD 5 VERY POOR 83 GOOD
MAX LVORI EARLY 10 4 6 1
MAX LVORI LATE 10 4 6 1
MIN VSBY EARLY 8 0 FOG 9 9
MIN VSBY LATE 1 FOG 9 9 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 10 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
CLEAR. LOWS IN THE UPPER 40S. NORTH WINDS 5 TO
10 MPH.
SATURDAY
SUNNY. HIGHS IN THE UPPER 60S. NORTH WINDS AROUND
5 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. SOUTH WINDS
AROUND 5 MPH.
SUNDAY
SUNNY. HIGHS AROUND 70. SOUTH WINDS AROUND 5 MPH.
SUNDAY NIGHT AND MONDAY
PARTLY CLOUDY. LOWS IN THE UPPER 40S.
HIGHS IN THE MID 70S. SOUTHWEST WINDS AROUND 5 MPH.
MONDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 50S. SOUTHWEST
WINDS AROUND 5 MPH.
TUESDAY THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS IN THE UPPER
50S. HIGHS AROUND 80. WEST WINDS AROUND 5 MPH.
MAZ004-180800-
NORTHERN WORCESTER MA-
INCLUDING THE CITIES OF ATHOL, BOYLSTON, BROOKFIELD, FITCHBURG,
GARDNER, AND HARVARD
407 PM EDT WED SEP 17 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY CLEAR MCLEAR
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 40 20
CHANCE OF THUNDER (%) 30 0 0 0
TEMP (24H TREND) 53 (+5) 79 (+6) 54 75
RH % (24H TREND) 100 (0) 48 (+2) 100 36
20FT WND AM(MPH) LGT/VAR NW 5
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR NW 7
PRECIP AMOUNT 0.02 0.00 0.00 0.00
PRECIP DURATION 2
PRECIP BEGIN 7 PM
PRECIP END 6 AM
MIXING HGT (FT-AGL) 270 4430 210 5230
TRANSPORT WND (KTS) E 4 W 8 NW 8 NW 12
VENT RATE (KT-FT) 1080 35440 1680 62760
MAX ADI EARLY 12 POOR 11 POOR 11 POOR 55 GEN GOOD
MAX ADI LATE 2 VERY POOR 47 GEN GOOD 4 VERY POOR 43 GEN GOOD
MAX LVORI EARLY 10 3 6 1
MAX LVORI LATE 10 3 6 1
MIN VSBY EARLY 9 0 FOG 8 8
MIN VSBY LATE 1 FOG 9 7 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 10 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
CLEAR. LOWS IN THE MID 40S. NORTH WINDS 5 TO
10 MPH.
SATURDAY
SUNNY. HIGHS IN THE UPPER 60S. NORTH WINDS AROUND
5 MPH.
SATURDAY NIGHT AND SUNDAY
MOSTLY CLEAR. LOWS IN THE LOWER 40S.
HIGHS AROUND 70. SOUTH WINDS AROUND 5 MPH.
SUNDAY NIGHT AND MONDAY
PARTLY CLOUDY. LOWS IN THE UPPER 40S.
HIGHS IN THE MID 70S. SOUTHWEST WINDS 5 TO 10 MPH.
MONDAY NIGHT THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS IN THE MID
50S. HIGHS AROUND 80. WEST WINDS 5 TO 10 MPH.
MAZ026-180800-
NORTHERN MIDDLESEX MA-
INCLUDING THE CITIES OF ASHBY, AYER, GROTON, PEPPERELL, SHIRLEY,
AND TOWNSEND
407 PM EDT WED SEP 17 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER PCLDY PCLDY MCLEAR MCLEAR
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 40 30 10
CHANCE OF THUNDER (%) 30 0 0 0
TEMP (24H TREND) 55 (+9) 81 (+7) 56 77
RH % (24H TREND) 100 (0) 54 (+1) 90 44
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR NW 6
PRECIP AMOUNT 0.00 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT (FT-AGL) 340 4710 280 5570
TRANSPORT WND (KTS) N 3 W 8 NW 8 NW 12
VENT RATE (KT-FT) 1020 37680 2240 66840
MAX ADI EARLY 18 GEN POOR 12 POOR 10 POOR 74 GOOD
MAX ADI LATE 2 VERY POOR 52 GEN GOOD 4 VERY POOR 87 GOOD
MAX LVORI EARLY 10 3 6 1
MAX LVORI LATE 10 3 6 1
MIN VSBY EARLY 9 1 FOG 9 9
MIN VSBY LATE 1 FOG 9 9 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 10 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
CLEAR. LOWS IN THE MID 40S. NORTH WINDS AROUND
5 MPH.
SATURDAY
SUNNY. HIGHS IN THE UPPER 60S. NORTH WINDS AROUND
5 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 40. LIGHT AND
VARIABLE WIND.
SUNDAY
SUNNY. HIGHS IN THE LOWER 70S. SOUTHWEST WINDS AROUND
5 MPH.
SUNDAY NIGHT AND MONDAY
PARTLY CLOUDY. LOWS IN THE UPPER 40S.
HIGHS IN THE MID 70S. SOUTHWEST WINDS AROUND 5 MPH.
MONDAY NIGHT AND TUESDAY
MOSTLY CLEAR. LOWS IN THE MID 50S.
HIGHS IN THE LOWER 80S. SOUTHWEST WINDS AROUND 5 MPH.
TUESDAY NIGHT AND WEDNESDAY
PARTLY CLOUDY. LOWS IN THE UPPER
50S. HIGHS IN THE LOWER 80S. WEST WINDS AROUND 5 MPH.
MAZ002-180800-
WESTERN FRANKLIN MA-
INCLUDING THE CITIES OF ASHFIELD, CHARLEMONT, COLRAIN,
AND SHELBURNE
407 PM EDT WED SEP 17 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER PCLDY MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS NONE NONE NONE
CHANCE PRECIP (%) 20 10
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 52 (+3) 80 (+9) 53 73
RH % (24H TREND) 100 (+7) 43 (-3) 93 41
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR NW 5
PRECIP AMOUNT 0.00 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT (FT-AGL) 130 5190 110 4990
TRANSPORT WND (KTS) NW 4 W 9 NW 8 NW 12
VENT RATE (KT-FT) 520 46710 880 59880
MAX ADI EARLY 8 POOR 20 GEN POOR 14 GEN POOR 62 GOOD
MAX ADI LATE 3 VERY POOR 62 GOOD 5 VERY POOR 77 GOOD
MAX LVORI EARLY 8 1 6 1
MAX LVORI LATE 8 1 6 1
MIN VSBY EARLY 9 0 FOG 9 9
MIN VSBY LATE 1 FOG 9 9 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 10 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
CLEAR. LOWS IN THE LOWER 40S. NORTH WINDS AROUND
5 MPH.
SATURDAY
SUNNY. HIGHS IN THE UPPER 60S. NORTH WINDS AROUND
5 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 30S. LIGHT AND
VARIABLE WIND, BECOMING NORTHWEST AROUND 5 MPH AFTER MIDNIGHT.
SUNDAY
SUNNY. HIGHS IN THE UPPER 60S. SOUTH WINDS AROUND
5 MPH.
SUNDAY NIGHT AND MONDAY
PARTLY CLOUDY. LOWS IN THE UPPER 40S.
HIGHS IN THE MID 70S. SOUTH WINDS AROUND 5 MPH.
MONDAY NIGHT THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS IN THE MID
50S. HIGHS IN THE UPPER 70S. WEST WINDS AROUND 5 MPH.
MAZ003-180800-
EASTERN FRANKLIN MA-
INCLUDING THE CITIES OF GREENFIELD, LEVERETT, NORTHFIELD, ORANGE,
AND WHATELY
407 PM EDT WED SEP 17 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER PCLDY PCLDY CLEAR MCLEAR
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 30 20
CHANCE OF THUNDER (%) 20 0 0 0
TEMP (24H TREND) 54 (+5) 82 (+8) 54 76
RH % (24H TREND) 100 (0) 42 (-1) 100 36
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR NW 6
PRECIP AMOUNT 0.01 0.00 0.00 0.00
PRECIP DURATION 1
PRECIP BEGIN 9 PM
PRECIP END 6 AM
MIXING HGT (FT-AGL) 200 5050 150 5420
TRANSPORT WND (KTS) N 3 W 8 NW 6 NW 12
VENT RATE (KT-FT) 600 40400 900 65040
MAX ADI EARLY 8 POOR 13 GEN POOR 12 POOR 71 GOOD
MAX ADI LATE 2 VERY POOR 54 GEN GOOD 4 VERY POOR 76 GOOD
MAX LVORI EARLY 9 2 7 1
MAX LVORI LATE 9 2 7 1
MIN VSBY EARLY 9 0 FOG 9 9
MIN VSBY LATE 1 FOG 9 9 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 10 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
CLEAR. LOWS IN THE MID 40S. NORTH WINDS 5 TO
10 MPH.
SATURDAY
SUNNY. HIGHS IN THE UPPER 60S. NORTH WINDS AROUND
5 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 30S. NORTHEAST
WINDS AROUND 5 MPH.
SUNDAY
SUNNY. HIGHS IN THE LOWER 70S. EAST WINDS AROUND 5 MPH,
BECOMING SOUTH AROUND 5 MPH IN THE AFTERNOON.
SUNDAY NIGHT AND MONDAY
PARTLY CLOUDY. LOWS IN THE UPPER 40S.
HIGHS IN THE MID 70S. SOUTH WINDS 5 TO 10 MPH.
MONDAY NIGHT THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS IN THE MID
50S. HIGHS IN THE LOWER 80S. WEST WINDS 5 TO 10 MPH.
MAZ008-180800-
WESTERN HAMPSHIRE MA-
INCLUDING THE CITIES OF CHESTERFIELD, PLAINFIELD, WESTHAMPTON,
WILLIAMSBURG, AND WORTHINGTON
407 PM EDT WED SEP 17 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER PCLDY MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS NONE NONE NONE
CHANCE PRECIP (%) 30 10
CHANCE OF THUNDER (%) 0 0 0 0
TEMP (24H TREND) 53 (+4) 79 (+9) 54 73
RH % (24H TREND) 100 (+4) 46 (-6) 93 45
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR NW 6
PRECIP AMOUNT 0.00 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT (FT-AGL) 170 4880 150 4860
TRANSPORT WND (KTS) NW 5 W 8 NW 10 NW 13
VENT RATE (KT-FT) 850 39040 1500 63180
MAX ADI EARLY 9 POOR 20 GEN POOR 13 GEN POOR 64 GOOD
MAX ADI LATE 3 VERY POOR 59 GEN GOOD 6 VERY POOR 79 GOOD
MAX LVORI EARLY 8 2 6 1
MAX LVORI LATE 8 2 6 1
MIN VSBY EARLY 9 1 FOG 9 9
MIN VSBY LATE 1 FOG 9 9 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 10 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 40S. NORTH WINDS
AROUND 5 MPH.
SATURDAY
SUNNY. HIGHS IN THE UPPER 60S. NORTH WINDS AROUND
5 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 30S. LIGHT AND
VARIABLE WIND.
SUNDAY
SUNNY. HIGHS IN THE UPPER 60S. SOUTH WINDS AROUND
5 MPH.
SUNDAY NIGHT AND MONDAY
PARTLY CLOUDY. LOWS IN THE UPPER 40S.
HIGHS IN THE LOWER 70S. SOUTHWEST WINDS AROUND 5 MPH.
MONDAY NIGHT THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS IN THE MID
50S. HIGHS IN THE UPPER 70S. WEST WINDS AROUND 5 MPH.
MAZ010-180800-
EASTERN HAMPSHIRE MA-
INCLUDING THE CITIES OF AMHERST, BELCHERTOWN, NORTHAMPTON,
SOUTHAMPTON, AND WARE
407 PM EDT WED SEP 17 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER PCLDY PCLDY CLEAR MCLEAR
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 30 20
CHANCE OF THUNDER (%) 20 0 0 0
TEMP (24H TREND) 56 (+5) 82 (+7) 55 78
RH % (24H TREND) 100 (0) 47 (-2) 96 43
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR NW 7
PRECIP AMOUNT 0.01 0.00 0.00 0.00
PRECIP DURATION 2
PRECIP BEGIN 8 PM
PRECIP END 6 AM
MIXING HGT (FT-AGL) 300 5090 240 5450
TRANSPORT WND (KTS) NE 3 W 8 NW 5 NW 12
VENT RATE (KT-FT) 900 40720 1200 65400
MAX ADI EARLY 10 POOR 14 GEN POOR 11 POOR 69 GOOD
MAX ADI LATE 2 VERY POOR 48 GEN GOOD 4 VERY POOR 69 GOOD
MAX LVORI EARLY 9 3 7 1
MAX LVORI LATE 9 3 7 1
MIN VSBY EARLY 9 1 FOG 9 9
MIN VSBY LATE 1 FOG 9 9 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 10 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
CLEAR. LOWS IN THE MID 40S. NORTH WINDS 5 TO
10 MPH.
SATURDAY
SUNNY. HIGHS AROUND 70. NORTH WINDS AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 30S. EAST WINDS
AROUND 5 MPH.
SUNDAY
SUNNY. HIGHS IN THE LOWER 70S. EAST WINDS AROUND 5 MPH,
BECOMING SOUTH AROUND 5 MPH IN THE AFTERNOON.
SUNDAY NIGHT AND MONDAY
PARTLY CLOUDY. LOWS IN THE UPPER 40S.
HIGHS IN THE MID 70S. SOUTH WINDS 5 TO 10 MPH.
MONDAY NIGHT THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS IN THE
UPPER 50S. HIGHS IN THE LOWER 80S. WEST WINDS AROUND 5 MPH.
MAZ009-180800-
WESTERN HAMPDEN MA-
INCLUDING THE CITIES OF BLANDFORD, CHESTER, GRANVILLE,
MONTGOMERY, RUSSELL, AND TOLLAND
407 PM EDT WED SEP 17 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER PCLDY PCLDY CLEAR MCLEAR
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 30 10
CHANCE OF THUNDER (%) 20 0 0 0
TEMP (24H TREND) 54 (+5) 79 (+8) 56 74
RH % (24H TREND) 100 (0) 48 (-5) 93 48
20FT WND AM(MPH) LGT/VAR NW 5
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR NW 7
PRECIP AMOUNT 0.00 0.00 0.00 0.00
PRECIP DURATION
PRECIP BEGIN
PRECIP END
MIXING HGT (FT-AGL) 110 4740 100 4720
TRANSPORT WND (KTS) N 5 W 8 NW 11 NW 14
VENT RATE (KT-FT) 550 37920 1100 66080
MAX ADI EARLY 13 GEN POOR 19 GEN POOR 12 POOR 72 GOOD
MAX ADI LATE 3 VERY POOR 57 GEN GOOD 6 VERY POOR 77 GOOD
MAX LVORI EARLY 9 2 6 1
MAX LVORI LATE 9 2 6 1
MIN VSBY EARLY 9 1 FOG 9 9
MIN VSBY LATE 2 FOG 9 9 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 10 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. NORTH WINDS
AROUND 5 MPH.
SATURDAY
SUNNY. HIGHS IN THE UPPER 60S. NORTHEAST WINDS AROUND
5 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 40S. WEST WINDS
AROUND 5 MPH.
SUNDAY
SUNNY. HIGHS IN THE UPPER 60S. SOUTH WINDS AROUND
5 MPH.
SUNDAY NIGHT AND MONDAY
PARTLY CLOUDY. LOWS IN THE UPPER 40S.
HIGHS IN THE MID 70S. SOUTHWEST WINDS AROUND 5 MPH.
MONDAY NIGHT THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS IN THE MID
50S. HIGHS IN THE UPPER 70S. WEST WINDS AROUND 5 MPH.
MAZ011-180800-
EASTERN HAMPDEN MA-
INCLUDING THE CITIES OF CHICOPEE, HOLLAND, PALMER, SOUTHWICK,
SPRINGFIELD, AND WESTFIELD
407 PM EDT WED SEP 17 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER PCLDY PCLDY CLEAR MCLEAR
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 40 20
CHANCE OF THUNDER (%) 20 0 0 0
TEMP (24H TREND) 57 (+6) 81 (+7) 56 78
RH % (24H TREND) 100 (0) 47 (-1) 96 41
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR NW 8
PRECIP AMOUNT 0.01 0.00 0.00 0.00
PRECIP DURATION 2
PRECIP BEGIN 7 PM
PRECIP END 6 AM
MIXING HGT (FT-AGL) 300 4880 240 5420
TRANSPORT WND (KTS) NE 4 W 7 NW 6 NW 12
VENT RATE (KT-FT) 1200 34160 1440 65040
MAX ADI EARLY 12 POOR 9 POOR 13 GEN POOR 66 GOOD
MAX ADI LATE 2 VERY POOR 46 GEN GOOD 4 VERY POOR 44 GEN GOOD
MAX LVORI EARLY 9 3 6 1
MAX LVORI LATE 9 3 6 1
MIN VSBY EARLY 9 1 FOG 9 9
MIN VSBY LATE 1 FOG 9 9 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 10 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
CLEAR. LOWS IN THE MID 40S. NORTH WINDS 5 TO
10 MPH.
SATURDAY
SUNNY. HIGHS AROUND 70. NORTH WINDS AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 40S. SOUTHEAST
WINDS AROUND 5 MPH.
SUNDAY
SUNNY. HIGHS IN THE LOWER 70S. EAST WINDS AROUND 5 MPH,
BECOMING SOUTH AROUND 5 MPH IN THE AFTERNOON.
SUNDAY NIGHT AND MONDAY
PARTLY CLOUDY. LOWS IN THE UPPER 40S.
HIGHS IN THE MID 70S. SOUTH WINDS 5 TO 10 MPH.
MONDAY NIGHT THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS IN THE
UPPER 50S. HIGHS IN THE LOWER 80S. WEST WINDS AROUND 5 MPH.
CTZ002-180800-
HARTFORD CT-
INCLUDING THE CITIES OF HARTFORD, GLASTONBURY, GRANBY,
SOUTHINGTON, AND WINDSOR LOCKS
407 PM EDT WED SEP 17 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER PCLDY PCLDY CLEAR MCLEAR
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 40 10
CHANCE OF THUNDER (%) 20 0 0 0
TEMP (24H TREND) 58 (+6) 81 (+8) 57 79
RH % (24H TREND) 100 (0) 49 (0) 100 43
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR NW 7
PRECIP AMOUNT 0.01 0.00 0.00 0.00
PRECIP DURATION 2
PRECIP BEGIN 6 PM
PRECIP END 6 AM
MIXING HGT (FT-AGL) 330 4730 280 5550
TRANSPORT WND (KTS) NE 4 W 7 NW 7 NW 12
VENT RATE (KT-FT) 1320 33110 1960 66600
MAX ADI EARLY 5 VERY POOR 9 POOR 11 POOR 71 GOOD
MAX ADI LATE 2 VERY POOR 46 GEN GOOD 4 VERY POOR 45 GEN GOOD
MAX LVORI EARLY 9 3 6 1
MAX LVORI LATE 9 3 6 1
MIN VSBY EARLY 9 1 FOG 9 9
MIN VSBY LATE 2 FOG 9 9 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 10 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
CLEAR. LOWS IN THE UPPER 40S. NORTH WINDS 5 TO
10 MPH.
SATURDAY
SUNNY. HIGHS AROUND 70. NORTHEAST WINDS AROUND 5 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. EAST WINDS
AROUND 5 MPH.
SUNDAY
SUNNY. HIGHS IN THE LOWER 70S. EAST WINDS AROUND 5 MPH,
BECOMING SOUTH IN THE AFTERNOON.
SUNDAY NIGHT AND MONDAY
PARTLY CLOUDY. LOWS IN THE LOWER 50S.
HIGHS IN THE MID 70S. SOUTH WINDS 5 TO 10 MPH.
MONDAY NIGHT THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS IN THE
UPPER 50S. HIGHS IN THE LOWER 80S. WEST WINDS 5 TO 10 MPH.
CTZ003-180800-
TOLLAND CT-
INCLUDING THE CITIES OF MANSFIELD, STAFFORD SPRINGS, AND VERNON
407 PM EDT WED SEP 17 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY CLEAR MCLEAR
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 40 20
CHANCE OF THUNDER (%) 20 0 0 0
TEMP (24H TREND) 57 (+6) 79 (+6) 56 78
RH % (24H TREND) 100 (0) 56 (+3) 100 48
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR NW 7
PRECIP AMOUNT 0.01 0.00 0.00 0.00
PRECIP DURATION 2
PRECIP BEGIN 6 PM
PRECIP END 6 AM
MIXING HGT (FT-AGL) 220 3950 180 5330
TRANSPORT WND (KTS) NE 4 W 6 NW 7 NW 12
VENT RATE (KT-FT) 880 23700 1260 63960
MAX ADI EARLY 5 VERY POOR 8 POOR 8 POOR 63 GOOD
MAX ADI LATE 3 VERY POOR 38 FAIR 4 VERY POOR 46 GEN GOOD
MAX LVORI EARLY 9 4 7 2
MAX LVORI LATE 9 4 7 2
MIN VSBY EARLY 9 0 FOG 9 7
MIN VSBY LATE 1 FOG 9 9 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 10 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
CLEAR. LOWS IN THE UPPER 40S. NORTH WINDS 5 TO
10 MPH.
SATURDAY
SUNNY. HIGHS IN THE UPPER 60S. NORTH WINDS AROUND
5 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 40S. SOUTHEAST
WINDS AROUND 5 MPH.
SUNDAY
SUNNY. HIGHS AROUND 70. SOUTHEAST WINDS AROUND 5 MPH.
SUNDAY NIGHT AND MONDAY
PARTLY CLOUDY. LOWS IN THE UPPER 40S.
HIGHS IN THE MID 70S. SOUTHWEST WINDS AROUND 5 MPH.
MONDAY NIGHT THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS IN THE
UPPER 50S. HIGHS AROUND 80. WEST WINDS AROUND 5 MPH.
CTZ004-180800-
WINDHAM CT-
INCLUDING THE CITIES OF ASHFORD, PLAINFIELD, PUTNAM,
AND WILLIMANTIC
407 PM EDT WED SEP 17 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY MCLEAR MCLEAR
PRECIP TYPE TSTMS NONE NONE NONE
CHANCE PRECIP (%) 40 20 10
CHANCE OF THUNDER (%) 20 0 0 0
TEMP (24H TREND) 57 (+5) 78 (+4) 56 79
RH % (24H TREND) 100 (0) 58 (+5) 100 46
20FT WND AM(MPH) LGT/VAR NW 5
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR NW 7
PRECIP AMOUNT 0.02 0.00 0.00 0.00
PRECIP DURATION 2
PRECIP BEGIN 6 PM
PRECIP END 6 AM
MIXING HGT (FT-AGL) 300 3740 280 5540
TRANSPORT WND (KTS) NE 5 W 6 NW 7 NW 12
VENT RATE (KT-FT) 1500 22440 1960 66480
MAX ADI EARLY 5 VERY POOR 8 POOR 9 POOR 63 GOOD
MAX ADI LATE 3 VERY POOR 28 FAIR 4 VERY POOR 72 GOOD
MAX LVORI EARLY 10 4 9 1
MAX LVORI LATE 10 4 9 1
MIN VSBY EARLY 8 0 FOG 9 6 FOG
MIN VSBY LATE 1 FOG 9 9 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 10 0 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
CLEAR. LOWS IN THE UPPER 40S. NORTH WINDS AROUND
5 MPH.
SATURDAY
SUNNY. HIGHS AROUND 70. NORTH WINDS AROUND 5 MPH.
SATURDAY NIGHT AND SUNDAY
MOSTLY CLEAR. LOWS IN THE MID 40S.
HIGHS AROUND 70. SOUTH WINDS AROUND 5 MPH.
SUNDAY NIGHT AND MONDAY
PARTLY CLOUDY. LOWS IN THE UPPER 40S.
HIGHS IN THE MID 70S. SOUTHWEST WINDS AROUND 5 MPH.
MONDAY NIGHT THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS IN THE
UPPER 50S. HIGHS IN THE UPPER 70S. WEST WINDS AROUND 5 MPH.
RIZ001-180800-
NORTHWEST PROVIDENCE RI-
INCLUDING THE CITIES OF CUMBERLAND, FOSTER, GLOCESTER,
AND SMITHFIELD
407 PM EDT WED SEP 17 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY CLEAR MCLEAR
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 50 30 10
CHANCE OF THUNDER (%) 30 20 0 0
TEMP (24H TREND) 58 (+6) 77 (+4) 57 77
RH % (24H TREND) 100 (0) 69 (+8) 100 54
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR NW 5
PRECIP AMOUNT 0.04 0.00 0.00 0.00
PRECIP DURATION 2
PRECIP BEGIN 6 PM
PRECIP END 6 AM
MIXING HGT (FT-AGL) 240 3600 260 5560
TRANSPORT WND (KTS) NE 6 W 5 NW 8 NW 12
VENT RATE (KT-FT) 1440 18000 2080 66720
MAX ADI EARLY 6 VERY POOR 6 VERY POOR 9 POOR 61 GOOD
MAX ADI LATE 4 VERY POOR 27 FAIR 5 VERY POOR 83 GOOD
MAX LVORI EARLY 10 5 8 1
MAX LVORI LATE 10 5 8 1
MIN VSBY EARLY 5 FOG 1 FOG 9 9
MIN VSBY LATE 1 FOG 9 9 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 10 10 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 40S. NORTH WINDS
AROUND 5 MPH.
SATURDAY
SUNNY. HIGHS IN THE UPPER 60S. NORTHEAST WINDS AROUND
5 MPH.
SATURDAY NIGHT AND SUNDAY
MOSTLY CLEAR. LOWS IN THE MID 40S.
HIGHS IN THE UPPER 60S. SOUTH WINDS AROUND 5 MPH.
SUNDAY NIGHT AND MONDAY
PARTLY CLOUDY. LOWS IN THE UPPER 40S.
HIGHS IN THE MID 70S. SOUTH WINDS AROUND 5 MPH.
MONDAY NIGHT THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS IN THE
UPPER 50S. HIGHS IN THE UPPER 70S. WEST WINDS AROUND 5 MPH.
RIZ002-180800-
SOUTHEAST PROVIDENCE RI-
INCLUDING THE CITIES OF CRANSTON, JOHNSTON, PAWTUCKET,
AND PROVIDENCE
407 PM EDT WED SEP 17 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY MCLEAR MCLEAR
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 50 30 10
CHANCE OF THUNDER (%) 20 20 0 0
TEMP (24H TREND) 59 (+5) 77 (+2) 58 78
RH % (24H TREND) 100 (0) 71 (+10) 100 53
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR NW 6
PRECIP AMOUNT 0.04 0.00 0.00 0.00
PRECIP DURATION 2
PRECIP BEGIN 6 PM
PRECIP END 6 AM
MIXING HGT (FT-AGL) 370 3800 340 5580
TRANSPORT WND (KTS) NE 6 W 4 NW 8 NW 11
VENT RATE (KT-FT) 2220 15200 2720 61380
MAX ADI EARLY 6 VERY POOR 8 POOR 11 POOR 60 GEN GOOD
MAX ADI LATE 4 VERY POOR 26 FAIR 4 VERY POOR 80 GOOD
MAX LVORI EARLY 9 5 8 1
MAX LVORI LATE 9 5 8 1
MIN VSBY EARLY 6 FOG 1 FOG 9 9
MIN VSBY LATE 2 FOG 9 9 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 10 10 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 50. NORTH WINDS 5 TO
10 MPH.
SATURDAY
SUNNY. HIGHS IN THE UPPER 60S. NORTHEAST WINDS AROUND
5 MPH.
SATURDAY NIGHT AND SUNDAY
MOSTLY CLEAR. LOWS IN THE MID 40S.
HIGHS IN THE UPPER 60S. SOUTH WINDS 5 TO 10 MPH.
SUNDAY NIGHT AND MONDAY
PARTLY CLOUDY. LOWS IN THE LOWER 50S.
HIGHS IN THE MID 70S. SOUTH WINDS 5 TO 10 MPH.
MONDAY NIGHT THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS IN THE
UPPER 50S. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS 5 TO 10 MPH.
RIZ003-180800-
WESTERN KENT RI-
INCLUDING THE CITIES OF COVENTRY AND WEST GREENWICH
407 PM EDT WED SEP 17 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY MCLEAR MCLEAR
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 50 30 10
CHANCE OF THUNDER (%) 20 20 0 0
TEMP (24H TREND) 59 (+6) 77 (+5) 57 78
RH % (24H TREND) 100 (0) 71 (+10) 100 53
20FT WND AM(MPH) LGT/VAR NW 5
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR NW 6
PRECIP AMOUNT 0.05 0.00 0.00 0.00
PRECIP DURATION 2
PRECIP BEGIN 6 PM
PRECIP END 6 AM
MIXING HGT (FT-AGL) 290 3620 270 5720
TRANSPORT WND (KTS) NE 6 W 4 NW 8 NW 11
VENT RATE (KT-FT) 1740 14480 2160 62920
MAX ADI EARLY 7 POOR 8 POOR 10 POOR 61 GOOD
MAX ADI LATE 5 VERY POOR 24 FAIR 5 VERY POOR 81 GOOD
MAX LVORI EARLY 9 5 9 1
MAX LVORI LATE 9 5 9 1
MIN VSBY EARLY 5 FOG 1 FOG 9 9
MIN VSBY LATE 2 FOG 9 9 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 20 10 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 40S. NORTH WINDS
AROUND 5 MPH.
SATURDAY
SUNNY. HIGHS IN THE UPPER 60S. NORTHEAST WINDS AROUND
5 MPH.
SATURDAY NIGHT AND SUNDAY
MOSTLY CLEAR. LOWS IN THE MID 40S.
HIGHS IN THE UPPER 60S. SOUTHEAST WINDS AROUND 5 MPH.
SUNDAY NIGHT AND MONDAY
PARTLY CLOUDY. LOWS AROUND 50. HIGHS
IN THE LOWER 70S. SOUTH WINDS AROUND 5 MPH.
MONDAY NIGHT THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS IN THE
UPPER 50S. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS AROUND 5 MPH.
RIZ004-180800-
EASTERN KENT RI-
INCLUDING THE CITIES OF EAST GREENWICH, WARWICK, AND WEST WARWICK
407 PM EDT WED SEP 17 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY MCLEAR MCLEAR
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 50 40 10
CHANCE OF THUNDER (%) 20 20 0 0
TEMP (24H TREND) 60 (+5) 77 (+4) 58 79
RH % (24H TREND) 100 (0) 66 (+11) 100 51
20FT WND AM(MPH) LGT/VAR NW 5
20FT WND PM(MPH) NE 5 LGT/VAR LGT/VAR NW 6
PRECIP AMOUNT 0.04 0.00 0.00 0.00
PRECIP DURATION 2
PRECIP BEGIN 6 PM
PRECIP END 6 AM
MIXING HGT (FT-AGL) 340 3420 370 5600
TRANSPORT WND (KTS) NE 6 W 4 W 8 NW 10
VENT RATE (KT-FT) 2040 13680 2960 56000
MAX ADI EARLY 8 POOR 1 VERY POOR 9 POOR 56 GEN GOOD
MAX ADI LATE 5 VERY POOR 18 GEN POOR 5 VERY POOR 66 GOOD
MAX LVORI EARLY 9 4 8 1
MAX LVORI LATE 9 4 8 1
MIN VSBY EARLY 7 1 FOG 9 9
MIN VSBY LATE 2 FOG 9 9 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 10 10 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 50S. NORTH WINDS
5 TO 10 MPH.
SATURDAY
SUNNY. HIGHS IN THE UPPER 60S. NORTHEAST WINDS 5 TO
10 MPH.
SATURDAY NIGHT AND SUNDAY
MOSTLY CLEAR. LOWS IN THE UPPER 40S.
HIGHS IN THE UPPER 60S. SOUTHEAST WINDS 5 TO 10 MPH.
SUNDAY NIGHT AND MONDAY
PARTLY CLOUDY. LOWS IN THE LOWER 50S.
HIGHS IN THE LOWER 70S. SOUTH WINDS 5 TO 10 MPH.
MONDAY NIGHT THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS AROUND 60.
HIGHS IN THE UPPER 70S. SOUTHWEST WINDS 5 TO 10 MPH.
RIZ005-180800-
BRISTOL RI-
INCLUDING THE CITIES OF BARRINGTON, BRISTOL, AND WARREN
407 PM EDT WED SEP 17 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY MCLEAR MCLEAR
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 50 40 10
CHANCE OF THUNDER (%) 20 20 0 0
TEMP (24H TREND) 61 (+6) 77 (+3) 60 79
RH % (24H TREND) 100 (0) 71 (+10) 100 55
20FT WND AM(MPH) LGT/VAR NW 5
20FT WND PM(MPH) NE 5 LGT/VAR LGT/VAR NW 6
PRECIP AMOUNT 0.07 0.00 0.00 0.00
PRECIP DURATION 2
PRECIP BEGIN 6 PM
PRECIP END 6 AM
MIXING HGT (FT-AGL) 350 2890 350 5400
TRANSPORT WND (KTS) NE 6 W 4 W 7 NW 9
VENT RATE (KT-FT) 2100 11560 2450 48600
MAX ADI EARLY 9 POOR 1 VERY POOR 9 POOR 55 GEN GOOD
MAX ADI LATE 5 VERY POOR 16 GEN POOR 5 VERY POOR 65 GOOD
MAX LVORI EARLY 9 5 9 2
MAX LVORI LATE 9 5 9 2
MIN VSBY EARLY 6 FOG 1 FOG 9 9
MIN VSBY LATE 2 FOG 9 9 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 20 10 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 50S. NORTH WINDS
5 TO 10 MPH.
SATURDAY
SUNNY. HIGHS IN THE UPPER 60S. NORTHEAST WINDS 5 TO
10 MPH.
SATURDAY NIGHT AND SUNDAY
MOSTLY CLEAR. LOWS IN THE UPPER 40S.
HIGHS IN THE UPPER 60S. SOUTHEAST WINDS 5 TO 10 MPH.
SUNDAY NIGHT AND MONDAY
PARTLY CLOUDY. LOWS IN THE MID 50S.
HIGHS IN THE LOWER 70S. SOUTH WINDS 5 TO 10 MPH.
MONDAY NIGHT THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS IN THE
LOWER 60S. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS 5 TO 10 MPH.
RIZ006-180800-
WASHINGTON RI-
INCLUDING THE CITIES OF KINGSTON, NARRAGANSETT, RICHMOND,
AND WESTERLY
407 PM EDT WED SEP 17 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY MCLEAR MCLEAR
PRECIP TYPE TSTMS SHOWERS NONE NONE
CHANCE PRECIP (%) 50 30 10
CHANCE OF THUNDER (%) 20 0 0 0
TEMP (24H TREND) 59 (+4) 76 (+4) 56 79
RH % (24H TREND) 100 (0) 67 (+8) 100 54
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) NE 6 LGT/VAR LGT/VAR NW 6
PRECIP AMOUNT 0.06 0.00 0.00 0.00
PRECIP DURATION 2
PRECIP BEGIN 6 PM
PRECIP END 6 AM
MIXING HGT (FT-AGL) 350 3300 350 5590
TRANSPORT WND (KTS) NE 7 W 5 NW 9 NW 10
VENT RATE (KT-FT) 2450 16500 3150 55900
MAX ADI EARLY 9 POOR 10 POOR 8 POOR 54 GEN GOOD
MAX ADI LATE 5 VERY POOR 17 GEN POOR 5 VERY POOR 65 GOOD
MAX LVORI EARLY 9 4 9 2
MAX LVORI LATE 9 4 9 2
MIN VSBY EARLY 4 FOG 1 FOG 9 9
MIN VSBY LATE 2 FOG 9 6 FOG 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 20 10 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 50S. NORTH WINDS
10 TO 15 MPH.
SATURDAY THROUGH SUNDAY
MOSTLY CLEAR. LOWS AROUND 50. HIGHS IN
THE UPPER 60S. SOUTHEAST WINDS 10 TO 15 MPH.
SUNDAY NIGHT AND MONDAY
PARTLY CLOUDY. LOWS IN THE LOWER 50S.
HIGHS IN THE LOWER 70S. SOUTH WINDS 5 TO 10 MPH.
MONDAY NIGHT THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS IN THE
UPPER 50S. HIGHS IN THE MID 70S. SOUTHWEST WINDS 5 TO 10 MPH.
RIZ007-180800-
NEWPORT RI-
INCLUDING THE CITIES OF NEWPORT, PORTSMOUTH, AND TIVERTON
407 PM EDT WED SEP 17 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY MCLEAR MCLEAR
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 50 40 10
CHANCE OF THUNDER (%) 20 20 0 0
TEMP (24H TREND) 61 (+3) 76 (+3) 60 79
RH % (24H TREND) 100 (0) 66 (+11) 100 53
20FT WND AM(MPH) LGT/VAR NW 5
20FT WND PM(MPH) NE 6 LGT/VAR SW 5 NW 6
PRECIP AMOUNT 0.08 0.01 0.00 0.00
PRECIP DURATION 2 1
PRECIP BEGIN 6 PM CONTINUING
PRECIP END CONTINUING 9 AM
MIXING HGT (FT-AGL) 690 2240 310 4900
TRANSPORT WND (KTS) E 8 W 5 W 8 NW 9
VENT RATE (KT-FT) 5520 11200 2480 44100
MAX ADI EARLY 10 POOR 1 VERY POOR 9 POOR 42 GEN GOOD
MAX ADI LATE 6 VERY POOR 13 GEN POOR 5 VERY POOR 49 GEN GOOD
MAX LVORI EARLY 9 4 8 2
MAX LVORI LATE 9 4 8 2
MIN VSBY EARLY 5 FOG 1 FOG 9 9
MIN VSBY LATE 1 FOG 7 5 FOG 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 20 20 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 50S. NORTH WINDS
10 TO 15 MPH.
SATURDAY
SUNNY. HIGHS IN THE UPPER 60S. NORTHEAST WINDS 10 TO
15 MPH.
SATURDAY NIGHT AND SUNDAY
MOSTLY CLEAR. LOWS IN THE LOWER 50S.
HIGHS IN THE UPPER 60S. SOUTHEAST WINDS 5 TO 10 MPH.
SUNDAY NIGHT AND MONDAY
PARTLY CLOUDY. LOWS IN THE MID 50S.
HIGHS IN THE LOWER 70S. SOUTH WINDS 5 TO 10 MPH.
MONDAY NIGHT THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS IN THE
LOWER 60S. HIGHS IN THE MID 70S. SOUTHWEST WINDS 5 TO 10 MPH.
RIZ008-180800-
BLOCK ISLAND RI-
INCLUDING THE CITY OF NEW SHOREHAM
407 PM EDT WED SEP 17 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY MCLEAR MCLEAR
PRECIP TYPE TSTMS SHOWERS NONE NONE
CHANCE PRECIP (%) 50 30 10
CHANCE OF THUNDER (%) 20 0 0 0
TEMP (24H TREND) 63 (+1) 72 (+3) 62 75
RH % (24H TREND) 100 (+7) 78 (+8) 100 64
20FT WND AM(MPH) LGT/VAR NW 7
20FT WND PM(MPH) E 11 LGT/VAR SW 6 W 7
PRECIP AMOUNT 0.28 0.06 0.00 0.00
PRECIP DURATION 2 1
PRECIP BEGIN 6 PM CONTINUING
PRECIP END CONTINUING 10 AM
MIXING HGT (FT-AGL) 790 1060 360 920
TRANSPORT WND (KTS) E 10 N 6 SW 9 W 9
VENT RATE (KT-FT) 7900 6360 3240 8280
MAX ADI EARLY 19 GEN POOR 10 POOR 9 POOR 15 GEN POOR
MAX ADI LATE 14 GEN POOR 9 POOR 11 POOR 13 GEN POOR
MAX LVORI EARLY 8 5 6 4
MAX LVORI LATE 8 5 6 4
MIN VSBY EARLY 4 FOG 1 FOG 9 9
MIN VSBY LATE 1 FOG 6 FOG 9 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 40 30 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. NORTH WINDS
10 TO 15 MPH.
SATURDAY THROUGH SUNDAY
MOSTLY CLEAR. LOWS 54 TO 59. HIGHS IN
THE MID 60S. SOUTHEAST WINDS 10 TO 15 MPH.
SUNDAY NIGHT AND MONDAY
PARTLY CLOUDY. LOWS AROUND 60. HIGHS
IN THE UPPER 60S. SOUTH WINDS 5 TO 10 MPH.
MONDAY NIGHT THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS IN THE MID
60S. HIGHS IN THE LOWER 70S. SOUTHWEST WINDS 5 TO 10 MPH.
MAZ017-180800-
NORTHERN BRISTOL MA-
INCLUDING THE CITIES OF ATTLEBORO, BERKLEY, EASTON, MANSFIELD,
REHOBOTH, AND TAUNTON
407 PM EDT WED SEP 17 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY MCLEAR MCLEAR
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 60 40 10
CHANCE OF THUNDER (%) 30 20 0 0
TEMP (24H TREND) 58 (+7) 77 (+3) 57 78
RH % (24H TREND) 100 (0) 66 (+9) 100 51
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR NW 5
PRECIP AMOUNT 0.05 0.00 0.00 0.00
PRECIP DURATION 3
PRECIP BEGIN 6 PM
PRECIP END 6 AM
MIXING HGT (FT-AGL) 390 3680 340 5340
TRANSPORT WND (KTS) NE 5 W 5 NW 7 NW 10
VENT RATE (KT-FT) 1950 18400 2380 53400
MAX ADI EARLY 5 VERY POOR 7 POOR 9 POOR 61 GOOD
MAX ADI LATE 3 VERY POOR 28 FAIR 4 VERY POOR 74 GOOD
MAX LVORI EARLY 10 4 9 1
MAX LVORI LATE 10 4 9 1
MIN VSBY EARLY 5 FOG 1 FOG 9 4 FOG
MIN VSBY LATE 1 FOG 9 2 FOG 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 20 10 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 40S. NORTH WINDS
10 TO 15 MPH.
SATURDAY
SUNNY. HIGHS IN THE UPPER 60S. NORTHEAST WINDS AROUND
5 MPH.
SATURDAY NIGHT AND SUNDAY
MOSTLY CLEAR. LOWS IN THE LOWER 40S.
HIGHS AROUND 70. SOUTH WINDS AROUND 5 MPH.
SUNDAY NIGHT AND MONDAY
PARTLY CLOUDY. LOWS IN THE UPPER 40S.
HIGHS IN THE MID 70S. SOUTH WINDS AROUND 5 MPH.
MONDAY NIGHT THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS IN THE
UPPER 50S. HIGHS AROUND 80. SOUTHWEST WINDS AROUND 5 MPH.
MAZ018-180800-
WESTERN PLYMOUTH MA-
INCLUDING THE CITIES OF BRIDGEWATER, BROCKTON, CARVER,
MIDDLEBORO, AND PEMBROKE
407 PM EDT WED SEP 17 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY MCLEAR MCLEAR
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 60 40 10
CHANCE OF THUNDER (%) 30 20 0 0
TEMP (24H TREND) 59 (+7) 77 (+4) 57 78
RH % (24H TREND) 100 (0) 67 (+3) 100 53
20FT WND AM(MPH) LGT/VAR LGT/VAR
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR N 5
PRECIP AMOUNT 0.03 0.01 0.00 0.00
PRECIP DURATION 3 1
PRECIP BEGIN 6 PM CONTINUING
PRECIP END CONTINUING 9 AM
MIXING HGT (FT-AGL) 340 3200 360 4880
TRANSPORT WND (KTS) NE 6 W 5 W 7 NW 10
VENT RATE (KT-FT) 2040 16000 2520 48800
MAX ADI EARLY 17 GEN POOR 7 POOR 8 POOR 60 GEN GOOD
MAX ADI LATE 3 VERY POOR 21 FAIR 4 VERY POOR 63 GOOD
MAX LVORI EARLY 10 5 9 1
MAX LVORI LATE 10 5 9 1
MIN VSBY EARLY 7 1 FOG 9 2 FOG
MIN VSBY LATE 1 FOG 8 0 FOG 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 10 10 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 50S. NORTH WINDS
AROUND 5 MPH.
SATURDAY
SUNNY. HIGHS IN THE UPPER 60S. NORTHEAST WINDS AROUND
5 MPH.
SATURDAY NIGHT AND SUNDAY
MOSTLY CLEAR. LOWS IN THE LOWER 40S.
HIGHS AROUND 70. SOUTHEAST WINDS AROUND 5 MPH.
SUNDAY NIGHT AND MONDAY
PARTLY CLOUDY. LOWS AROUND 50. HIGHS
IN THE MID 70S. SOUTH WINDS AROUND 5 MPH.
MONDAY NIGHT THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS IN THE
UPPER 50S. HIGHS AROUND 80. SOUTHWEST WINDS AROUND 5 MPH.
MAZ019-180800-
EASTERN PLYMOUTH MA-
INCLUDING THE CITIES OF COHASSET, HINGHAM, MARSHFIELD, PLYMOUTH,
AND SCITUATE
407 PM EDT WED SEP 17 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY MCLEAR MCLEAR
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 60 40 10
CHANCE OF THUNDER (%) 30 20 0 0
TEMP (24H TREND) 59 (+5) 76 (+6) 58 77
RH % (24H TREND) 100 (0) 66 (0) 100 52
20FT WND AM(MPH) LGT/VAR NW 6
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR N 6
PRECIP AMOUNT 0.07 0.02 0.00 0.00
PRECIP DURATION 3 1
PRECIP BEGIN 6 PM CONTINUING
PRECIP END CONTINUING 10 AM
MIXING HGT (FT-AGL) 350 2000 320 3660
TRANSPORT WND (KTS) E 7 W 5 W 9 N 10
VENT RATE (KT-FT) 2450 10000 2880 36600
MAX ADI EARLY 16 GEN POOR 6 VERY POOR 7 POOR 43 GEN GOOD
MAX ADI LATE 4 VERY POOR 10 POOR 5 VERY POOR 43 GEN GOOD
MAX LVORI EARLY 9 6 9 2
MAX LVORI LATE 9 6 9 2
MIN VSBY EARLY 7 1 FOG 9 7
MIN VSBY LATE 1 FOG 7 6 FOG 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 10 10 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 50S. NORTH WINDS
10 TO 15 MPH.
SATURDAY
SUNNY. HIGHS IN THE MID 60S. NORTHEAST WINDS 10 TO
15 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 40S. SOUTH
WINDS AROUND 5 MPH.
SUNDAY
SUNNY. HIGHS IN THE UPPER 60S. SOUTHEAST WINDS 5 TO
10 MPH.
SUNDAY NIGHT THROUGH TUESDAY
PARTLY CLOUDY. LOWS IN THE MID
50S. HIGHS IN THE MID 70S. SOUTHWEST WINDS 5 TO 10 MPH.
TUESDAY NIGHT AND WEDNESDAY
PARTLY CLOUDY. LOWS AROUND 60.
HIGHS IN THE UPPER 70S. SOUTHWEST WINDS 5 TO 10 MPH.
MAZ020-180800-
SOUTHERN BRISTOL MA-
INCLUDING THE CITIES OF ACUSHNET, FALL RIVER, NEW BEDFORD,
SWANSEA, AND WESTPORT
407 PM EDT WED SEP 17 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY MCLEAR MCLEAR
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 60 40 10
CHANCE OF THUNDER (%) 20 20 0 0
TEMP (24H TREND) 59 (+4) 78 (+4) 56 79
RH % (24H TREND) 100 (0) 66 (+7) 100 48
20FT WND AM(MPH) LGT/VAR NW 5
20FT WND PM(MPH) NE 5 LGT/VAR LGT/VAR NW 5
PRECIP AMOUNT 0.11 0.02 0.00 0.00
PRECIP DURATION 3 1
PRECIP BEGIN 6 PM CONTINUING
PRECIP END CONTINUING 9 AM
MIXING HGT (FT-AGL) 350 3000 350 5660
TRANSPORT WND (KTS) NE 6 W 5 W 8 NW 9
VENT RATE (KT-FT) 2100 15000 2800 50940
MAX ADI EARLY 8 POOR 3 VERY POOR 9 POOR 50 GEN GOOD
MAX ADI LATE 4 VERY POOR 17 GEN POOR 5 VERY POOR 65 GOOD
MAX LVORI EARLY 9 5 9 2
MAX LVORI LATE 9 5 9 2
MIN VSBY EARLY 6 FOG 1 FOG 9 4 FOG
MIN VSBY LATE 1 FOG 6 FOG 3 FOG 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 40 30 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE LOWER 50S. NORTH WINDS
10 TO 15 MPH.
SATURDAY
SUNNY. HIGHS IN THE UPPER 60S. NORTHEAST WINDS 10 TO
15 MPH.
SATURDAY NIGHT AND SUNDAY
MOSTLY CLEAR. LOWS IN THE MID 40S.
HIGHS IN THE UPPER 60S. SOUTHEAST WINDS 5 TO 10 MPH.
SUNDAY NIGHT AND MONDAY
PARTLY CLOUDY. LOWS IN THE LOWER 50S.
HIGHS IN THE LOWER 70S. SOUTH WINDS 5 TO 10 MPH.
MONDAY NIGHT THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS IN THE
UPPER 50S. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS 10 TO 15 MPH.
MAZ021-180800-
SOUTHERN PLYMOUTH MA-
INCLUDING THE CITIES OF MARION, MATTAPOISETT, ROCHESTER,
AND WAREHAM
407 PM EDT WED SEP 17 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY MCLEAR MCLEAR
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 60 40 10
CHANCE OF THUNDER (%) 30 20 0 0
TEMP (24H TREND) 59 (+4) 77 (+4) 58 79
RH % (24H TREND) 100 (0) 74 (+8) 100 56
20FT WND AM(MPH) LGT/VAR NW 5
20FT WND PM(MPH) LGT/VAR LGT/VAR LGT/VAR N 6
PRECIP AMOUNT 0.10 0.02 0.00 0.00
PRECIP DURATION 3 1
PRECIP BEGIN 6 PM CONTINUING
PRECIP END CONTINUING 10 AM
MIXING HGT (FT-AGL) 390 2740 400 4700
TRANSPORT WND (KTS) NE 6 SW 5 W 8 NW 9
VENT RATE (KT-FT) 2340 13700 3200 42300
MAX ADI EARLY 6 VERY POOR 8 POOR 7 POOR 55 GEN GOOD
MAX ADI LATE 4 VERY POOR 16 GEN POOR 5 VERY POOR 59 GEN GOOD
MAX LVORI EARLY 9 6 9 3
MAX LVORI LATE 9 6 9 3
MIN VSBY EARLY 6 FOG 1 FOG 9 2 FOG
MIN VSBY LATE 1 FOG 6 FOG 1 FOG 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 30 30 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE MID 50S. NORTH WINDS
10 TO 15 MPH.
SATURDAY
SUNNY. HIGHS IN THE UPPER 60S. NORTHEAST WINDS 5 TO
10 MPH.
SATURDAY NIGHT AND SUNDAY
MOSTLY CLEAR. LOWS IN THE MID 40S.
HIGHS IN THE UPPER 60S. SOUTHEAST WINDS 5 TO 10 MPH.
SUNDAY NIGHT AND MONDAY
PARTLY CLOUDY. LOWS IN THE LOWER 50S.
HIGHS IN THE LOWER 70S. SOUTH WINDS 5 TO 10 MPH.
MONDAY NIGHT THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS IN THE
UPPER 50S. HIGHS IN THE UPPER 70S. SOUTHWEST WINDS 10 TO 15 MPH.
MAZ022-180800-
BARNSTABLE MA-
INCLUDING THE CITIES OF BOURNE, CHATHAM, FALMOUTH, HYANNIS,
PROVINCETOWN, AND WELLFLEET
407 PM EDT WED SEP 17 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY MCLEAR MCLEAR
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 60 50 10
CHANCE OF THUNDER (%) 30 20 0 0
TEMP (24H TREND) 60 (+3) 74 (+3) 60 75
RH % (24H TREND) 100 (0) 69 (+3) 100 57
20FT WND AM(MPH) LGT/VAR NW 6
20FT WND PM(MPH) E 6 LGT/VAR LGT/VAR N 6
PRECIP AMOUNT 0.16 0.09 0.00 0.00
PRECIP DURATION 4 1
PRECIP BEGIN 6 PM CONTINUING
PRECIP END CONTINUING 12 PM
MIXING HGT (FT-AGL) 420 1860 350 3560
TRANSPORT WND (KTS) E 7 W 5 SW 8 N 12
VENT RATE (KT-FT) 2940 9300 2800 42720
MAX ADI EARLY 9 POOR 1 VERY POOR 7 POOR 32 FAIR
MAX ADI LATE 7 POOR 12 POOR 6 VERY POOR 33 FAIR
MAX LVORI EARLY 9 7 9 3
MAX LVORI LATE 9 7 9 3
MIN VSBY EARLY 6 FOG 1 FOG 9 7
MIN VSBY LATE 1 FOG 5 FOG 5 FOG 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 40 40 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. NORTH WINDS
10 TO 15 MPH.
SATURDAY
SUNNY. HIGHS IN THE MID 60S. NORTHEAST WINDS 10 TO
15 MPH.
SATURDAY NIGHT AND SUNDAY
MOSTLY CLEAR. LOWS IN THE UPPER 40S.
HIGHS IN THE UPPER 60S. SOUTHEAST WINDS 5 TO 10 MPH.
SUNDAY NIGHT THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS 56 TO 61.
HIGHS IN THE LOWER 70S. SOUTHWEST WINDS 10 TO 15 MPH.
MAZ023-180800-
DUKES MA-
INCLUDING THE CITIES OF EDGARTOWN, OAK BLUFFS, AND VINEYARD HAVEN
407 PM EDT WED SEP 17 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY MCLEAR MCLEAR
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 60 40 10
CHANCE OF THUNDER (%) 20 20 0 0
TEMP (24H TREND) 60 (+1) 74 (+3) 60 76
RH % (24H TREND) 100 (+4) 76 (+6) 100 60
20FT WND AM(MPH) LGT/VAR NW 7
20FT WND PM(MPH) E 8 LGT/VAR SW 5 NW 7
PRECIP AMOUNT 0.17 0.04 0.00 0.00
PRECIP DURATION 3 1
PRECIP BEGIN 6 PM CONTINUING
PRECIP END CONTINUING 11 AM
MIXING HGT (FT-AGL) 690 1440 470 3190
TRANSPORT WND (KTS) E 8 NE 5 SW 8 NW 8
VENT RATE (KT-FT) 5520 7200 3760 25520
MAX ADI EARLY 13 GEN POOR 1 VERY POOR 9 POOR 24 FAIR
MAX ADI LATE 10 POOR 10 POOR 10 POOR 27 FAIR
MAX LVORI EARLY 8 6 7 3
MAX LVORI LATE 8 6 7 3
MIN VSBY EARLY 6 FOG 1 FOG 9 8
MIN VSBY LATE 0 FOG 5 FOG 4 FOG 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 40 30 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
MOSTLY CLEAR. LOWS IN THE UPPER 50S. NORTHEAST
WINDS 10 TO 15 MPH.
SATURDAY
SUNNY. HIGHS IN THE UPPER 60S. NORTHEAST WINDS 10 TO
15 MPH.
SATURDAY NIGHT AND SUNDAY
MOSTLY CLEAR. LOWS IN THE MID 40S.
HIGHS IN THE UPPER 60S. SOUTHEAST WINDS 5 TO 10 MPH.
SUNDAY NIGHT AND MONDAY
PARTLY CLOUDY. LOWS IN THE UPPER 50S.
HIGHS AROUND 70. SOUTH WINDS 5 TO 10 MPH.
MONDAY NIGHT THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS IN THE
LOWER 60S. HIGHS IN THE LOWER 70S. SOUTHWEST WINDS 10 TO 15 MPH.
MAZ024-180800-
NANTUCKET MA-
INCLUDING THE CITY OF NANTUCKET
407 PM EDT WED SEP 17 2025
TONIGHT THU THU NIGHT FRI
CLOUD COVER MCLDY PCLDY MCLEAR MCLEAR
PRECIP TYPE TSTMS TSTMS NONE NONE
CHANCE PRECIP (%) 60 50 10
CHANCE OF THUNDER (%) 30 20 0 0
TEMP (24H TREND) 61 (+1) 73 (+3) 60 74
RH % (24H TREND) 100 (+3) 76 (+3) 100 64
20FT WND AM(MPH) LGT/VAR NW 8
20FT WND PM(MPH) E 9 LGT/VAR LGT/VAR N 8
PRECIP AMOUNT 0.09 0.00 0.00 0.00
PRECIP DURATION 3
PRECIP BEGIN 6 PM
PRECIP END 6 AM
MIXING HGT (FT-AGL) 390 1110 510 2090
TRANSPORT WND (KTS) E 8 NW 6 SW 7 N 12
VENT RATE (KT-FT) 3120 6660 3570 25080
MAX ADI EARLY 14 GEN POOR 1 VERY POOR 9 POOR 23 FAIR
MAX ADI LATE 12 POOR 10 POOR 11 POOR 27 FAIR
MAX LVORI EARLY 9 6 9 3
MAX LVORI LATE 9 6 9 3
MIN VSBY EARLY 6 FOG 1 FOG 8 2 FOG
MIN VSBY LATE 0 FOG 5 FOG 2 FOG 9
SUNSHINE HOURS N/A N/A N/A N/A
CWR 30 10 0 0
REMARKS...NONE.
FORECAST FOR DAYS 3 THROUGH 7
FRIDAY NIGHT
PARTLY CLOUDY. LOWS IN THE UPPER 50S. NORTHEAST
WINDS 10 TO 15 MPH.
SATURDAY
SUNNY. HIGHS IN THE MID 60S. NORTHEAST WINDS 10 TO
15 MPH.
SATURDAY NIGHT AND SUNDAY
MOSTLY CLEAR. LOWS IN THE LOWER 50S.
HIGHS IN THE MID 60S. SOUTHEAST WINDS 5 TO 10 MPH.
SUNDAY NIGHT AND MONDAY
PARTLY CLOUDY. LOWS IN THE UPPER 50S.
HIGHS IN THE UPPER 60S. SOUTH WINDS 5 TO 10 MPH.
MONDAY NIGHT THROUGH WEDNESDAY
PARTLY CLOUDY. LOWS IN THE
LOWER 60S. HIGHS IN THE LOWER 70S. SOUTHWEST WINDS 10 TO 15 MPH.
OUTLOOK 8 TO 14 DAYS
TEMPERATURES ABOVE NORMAL. PRECIPITATION NEAR NORMAL.
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