994  
FNUS71 KBOX 191029  
FWSBOX  
 
SPOT FORECAST FOR SHARPENER POND RD...NORTH ANDOVER FIRE  
NATIONAL WEATHER SERVICE BOSTON/NORTON MA  
529 AM EST TUE NOV 19 2024  
 
FORECAST IS BASED ON FORECAST START TIME OF 0600 EST ON NOVEMBER 19.  
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL  
WEATHER SERVICE.  
   
..RED FLAG WARNING IN EFFECT UNTIL 6 PM EST THIS EVENING  
 
   
DISCUSSION  
 
   
..ELEVATED FIRE WEATHER CONCERNS TODAY  
 
DRY CONDITIONS WILL CONTINUE TODAY AND INTO WEDNESDAY. NORTHWEST  
WINDS GUST TO 15-25 MPH EARLY TODAY, WITH GRADUALLY DECREASING  
NORTHERLY WIND SPEEDS AND GUSTS BY THE AFTERNOON. WINDS BECOME  
LIGHT EASTERLY ON WEDNESDAY, WITH A MIX OF SUN AND CLOUDS.  
 
MINIMUM RH VALUES TODAY WILL RANGE BETWEEN 35% AND 50% TODAY, AND  
AROUND 45 TO 60 PERCENT ON WEDNESDAY.  
   
OUTLOOK...THURSDAY THROUGH SUNDAY  
 
MUCH NEEDED WIDESPREAD AND MEANINGFUL RAINFALL (GREATER THAN  
0.50 INCHES) REMAINS LIKELY LATE WEDNESDAY NIGHT AND THURSDAY  
NIGHT. DAMP AND COOLER WEATHER IS EXPECTED FRIDAY, WITH STEADIER  
LIGHT RAINS BEING CONFINED TO INTERIOR SOUTHERN NEW ENGLAND.  
TURNING DRIER FOR THE WEEKEND, BUT WILL REMAIN COOLER AND  
BLUSTERY.  
   
TODAY  
 
SKY/WEATHER.........SUNNY.  
CWR.................0 PERCENT.  
MAX TEMPERATURE.....AROUND 55.  
MIN HUMIDITY........45 PERCENT.  
WIND (20 FT)........NORTHWEST WINDS 7 TO 12 MPH. GUSTS UP TO 23 MPH  
THROUGH EARLY AFTERNOON.  
MIXING HEIGHT.......2900 FT AGL.  
TRANSPORT WINDS.....NORTHWEST 13 TO 22 MPH DECREASING TO 10 TO 12  
MPH LATE IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (3100 KNOT-FT) EARLY IN THE MORNING  
INCREASING TO GOOD (46500 KNOT-FT) IN THE  
AFTERNOON.  
HAINES INDEX........3 TO 5 OR VERY LOW TO MODERATE POTENTIAL FOR  
LARGE PLUME DOMINATED FIRE GROWTH.  
EYE LEVEL WINDS.....NORTHWEST WINDS UP TO 7 MPH. GUSTS UP TO 23 MPH  
THROUGH EARLY AFTERNOON.  
 
TIME (EST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........13 3 1 5 9 5 4 5 4 4 4 4  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CWR.............0 0 0 0 0 0 0 0 0 0 0 0  
TEMP............42 41 44 48 49 52 53 54 54 53 52 49  
RH..............73 73 68 58 56 50 48 45 45 46 48 54  
20 FT WIND DIR..NW NW NW NW NW NW NW NW NW NW NW NW  
20 FT WIND SPD..9 9 9 12 12 12 10 10 10 9 7 7  
20 FT WIND GUST.18 18 22 23 22 21 21 21 18 17 16 16  
EYE LVL WND DIR.NW NW NW NW NW NW NW NW NW NW NW NW  
EYE LVL WND SPD.5 5 5 7 7 7 6 6 6 5 4 4  
EYE LVL WND GST.11 11 13 14 13 13 13 13 11 10 10 10  
MIX HGT (KFT)...0.3 0.3 1.0 1.7 2.4 2.6 2.7 2.9 2.2 1.4 0.7 0.6  
TRANSP WIND DIR.NW NW NW NW NW NW NW NW NW NW NW NW  
TRANSP WIND SPD.14 13 16 18 22 21 20 18 16 14 12 10  
HAINES INDEX....3 3 3 4 4 4 5 5 5 4 4 4  
VRATE KT-FT/1K..3 3 14 28 46 47 46 46 30 17 7 5  
VENTRATE CAT....PR PR PR PR FR FR FR FR PR PR PR PR  
   
TONIGHT  
 
SKY/WEATHER.........MOSTLY CLEAR.  
CWR.................0 PERCENT.  
MIN TEMPERATURE.....AROUND 35.  
MAX HUMIDITY........92 PERCENT.  
WIND (20 FT)........NORTHWEST WINDS 5 TO 6 MPH IN THE EVENING  
BECOMING LIGHT, THEN BECOMING NORTHWEST AROUND  
5 MPH EARLY IN THE MORNING BECOMING LIGHT.  
MIXING HEIGHT.......200 FT AGL.  
TRANSPORT WINDS.....NORTHWEST 6 TO 10 MPH.  
SMOKE DISPERSAL.....POOR (1100 KNOT-FT).  
HAINES INDEX........3 TO 4 OR VERY LOW TO LOW POTENTIAL FOR LARGE  
PLUME DOMINATED FIRE GROWTH.  
EYE LEVEL WINDS.....NORTHWEST WINDS UP TO 4 MPH IN THE EVENING  
BECOMING LIGHT, THEN BECOMING NORTHWEST AROUND  
3 MPH EARLY IN THE MORNING BECOMING LIGHT.  
 
TIME (EST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........4 8 9 8 19 19 22 22 11 11 5 7  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CWR.............0 0 0 0 0 0 0 0 0 0 0 0  
TEMP............47 45 44 43 42 40 40 39 37 37 36 36  
RH..............60 65 65 67 70 76 76 79 85 85 89 89  
20 FT WIND DIR..NW NW NW NW NW NW NW NW NW NW NW NW  
20 FT WIND SPD..6 6 6 5 5 5 5 3 5 5 5 3  
20 FT WIND GUST.15 14 13 12 10 10 9 8 8 8 7 7  
EYE LVL WND DIR.NW NW NW NW NW NW NW NW NW NW NW NW  
EYE LVL WND SPD.4 4 4 3 3 3 3 2 3 3 3 2  
EYE LVL WND GST.9 8 8 7 6 6 5 5 5 5 4 4  
MIX HGT (KFT)...0.5 0.4 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.2 0.2 0.2  
TRANSP WIND DIR.NW NW NW NW NW NW NW NW NW NW NW NW  
TRANSP WIND SPD.10 9 9 8 8 8 7 7 7 6 6 6  
HAINES INDEX....3 3 3 3 3 3 3 3 3 4 4 4  
VRATE KT-FT/1K..4 3 3 2 2 2 2 2 2 1 1 1  
VENTRATE CAT....PR PR PR PR PR PR PR PR PR PR PR PR  
   
WEDNESDAY  
 
SKY/WEATHER.........SUNNY.  
CWR.................0 PERCENT.  
MAX TEMPERATURE.....AROUND 55.  
MIN HUMIDITY........57 PERCENT.  
WIND (20 FT)........LIGHT WINDS.  
MIXING HEIGHT.......2600 FT AGL.  
TRANSPORT WINDS.....NORTHWEST 5 TO 6 MPH SHIFTING TO THE EAST  
AROUND 6 MPH LATE IN THE AFTERNOON.  
SMOKE DISPERSAL.....POOR (900 KNOT-FT).  
HAINES INDEX........3 TO 4 OR VERY LOW TO LOW POTENTIAL FOR LARGE  
PLUME DOMINATED FIRE GROWTH.  
EYE LEVEL WINDS.....LIGHT WINDS.  
 
TIME (EST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........6 6 16 16 12 11 5 16 14 12 10 17  
WEATHER COV.....  
WEATHER TYPE....  
TSTM COV........  
CWR.............0 0 0 0 0 0 0 0 0 0 0 0  
TEMP............35 35 39 44 48 51 52 54 54 53 50 48  
RH..............92 92 82 73 65 61 59 57 57 59 66 74  
20 FT WIND DIR..NW NW NW N N N NE NE NE E E E  
20 FT WIND SPD..3 3 3 3 3 3 3 3 3 3 3 3  
20 FT WIND GUST.7 7 6 5 5 5 5 5 6 6 6 6  
EYE LVL WND DIR.NW NW NW N N N NE NE NE E E E  
EYE LVL WND SPD.2 2 2 2 2 2 2 2 2 2 2 2  
EYE LVL WND GST.4 4 4 3 3 3 3 3 4 4 4 4  
MIX HGT (KFT)...0.2 0.2 0.5 0.9 1.3 1.7 2.1 2.6 2.0 1.3 0.7 0.7  
TRANSP WIND DIR.NW NW NW N N N NE NE NE E E E  
TRANSP WIND SPD.6 6 6 5 5 5 5 5 5 6 6 6  
HAINES INDEX....4 4 4 4 4 4 3 3 3 3 3 3  
VRATE KT-FT/1K..1 1 3 4 5 7 9 10 8 7 4 3  
VENTRATE CAT....PR PR PR PR PR PR PR PR PR PR PR PR  
 
 
FORECASTER...RM  
REQUESTED BY...DEPUTY GRAHAM ROWE  
TYPE OF REQUEST...WILDFIRE  
.TAG 2426959.0/BOX  
.DELDT 11/19/24  
.FORMATTERVERSION 2.0.0  
.EMAIL GROWE@NAFD.US  
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