676  
FNUS71 KALY 211128  
FWSALY  
 
SPOT FORECAST FOR BUTTERNUT FIRE...MASSACHUSETTS EMERGENCY MANAGEMENT AGENCY  
NATIONAL WEATHER SERVICE ALBANY NY  
628 AM EST THU NOV 21 2024  
 
FORECAST IS BASED ON FORECAST START TIME OF 0700 EST ON NOVEMBER 21.  
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER  
SERVICE.  
 
PLEASE CONTACT OUR OFFICE AT ALB.STORMREPORT@NOAA.GOV, IF YOU HAVE QUESTIONS  
OR CONCERNS WITH THIS FORECAST.  
   
DISCUSSION
 
 
RAIN IS OVERSPREADING THE REGION AND SHOULD BECOME STEADY IN THE  
GREAT BARRINGTON AREA BY 7-8 AM THIS MORNING. FROM THAT POINT  
ONWARDS, STEADY RAIN CONTINUES THROUGH THE DAY AND INTO TONIGHT.  
RAINFALL AMOUNTS DURING THE DAY TODAY ARE EXPECTED TO TOTAL  
BETWEEN 0.5 AND 1 INCH, WITH AROUND AN ADDITIONAL 0.25 TO 0.5  
INCHES OF RAIN OVERNIGHT TONIGHT. EAST/NORTHEAST WINDS WILL BECOME  
GUSTY AT 15-20 MPH BY MID TO LATE MORNING THROUGH THE AFTERNOON.  
   
REST OF TODAY
 
 
SKY/WEATHER.........CLOUDY (95-100 PERCENT). RAIN.  
CHANCE OF PCPN......100 PERCENT.  
MAX TEMPERATURE.....AROUND 44.  
MIN HUMIDITY........82 PERCENT.  
DEWPOINT............40.  
WIND (20 FT)........  
SLOPE/VALLEY.......NORTHEAST WINDS 6 TO 8 MPH.  
MIXING HEIGHT.......2100 FT AGL.  
TRANSPORT WINDS.....EAST 13 TO 15 MPH.  
PCPN AMOUNT.........0.61 INCHES.  
 
TIME (EST) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........100 100 100 100 100 100 100 100 100 100 100  
WEATHER COV.....DEF DEF DEF DEF DEF DEF DEF DEF DEF DEF DEF  
WEATHER TYPE....RN RN RN RN RN RN RN RN RN RN RN  
TSTM COV........  
CHC OF PCPN (%).100 100 100 90 90 90 90 90 90 90 90  
TEMP............43 43 43 43 43 43 43 43 43 42 42  
DEWPOINT........41 41 41 41 41 41 41 40 40 40 40  
RH..............93 93 93 93 93 93 93 89 89 93 93  
20 FT WIND DIR..E E E E E NE NE NE NE NE NE  
20 FT WIND SPD..6 6 7 7 8 8 8 8 8 8 8  
20 FT WIND GUST.12 13 14 15 16 16 17 17 17 17 18  
MIX HGT (KFT)...1.3 1.5 1.7 1.9 2.1 2.1 2.1 2.0 1.8 1.6 1.4  
TRANSP WIND DIR.E E E E E E E E E E E  
TRANSP WIND SPD.13 13 14 15 15 14 14 13 13 13 14  
   
TONIGHT
 
 
SKY/WEATHER.........CLOUDY (90-100 PERCENT). RAIN IN THE EVENING,  
THEN RAIN LIKELY AND CHANCE OF SNOW OVERNIGHT.  
CHANCE OF PCPN......90 PERCENT.  
MIN TEMPERATURE.....AROUND 32.  
MAX HUMIDITY........97 PERCENT.  
DEWPOINT............38 DECREASING TO 33 AFTER 3 AM.  
WIND (20 FT)........  
SLOPE/VALLEY.......NORTHEAST WINDS 8 TO 12 MPH SHIFTING TO THE  
SOUTH AROUND 9 MPH AFTER 3 AM.  
MIXING HEIGHT.......1100 FT AGL.  
TRANSPORT WINDS.....EAST 15 TO 20 MPH SHIFTING TO THE SOUTH 17 TO  
18 MPH OVERNIGHT.  
PCPN AMOUNT.........0.35 INCHES.  
 
TIME (EST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM  
SKY (%).........100 97 96 96 95 95 95 95 92 90 87 87  
WEATHER COV.....DEF DEF DEF DEF DEF LKY LKY LKY CHC CHC CHC CHC  
WEATHER TYPE....RN RN RN RN RN RN RN RN RN RS SN RS  
TSTM COV........  
CHC OF PCPN (%).90 80 80 80 80 70 70 60 50 50 40 40  
TEMP............41 40 41 40 40 40 40 40 38 36 34 33  
DEWPOINT........40 39 38 39 39 39 39 38 36 35 33 32  
RH..............96 96 89 96 96 96 95 92 94 94 96 97  
20 FT WIND DIR..NE NE NE E E E SE SE SE S S S  
20 FT WIND SPD..8 9 10 12 12 12 10 10 10 9 9 9  
20 FT WIND GUST.20 20 20 21 21 21 21 20 18 18 17 16  
MIX HGT (KFT)...1.2 1.1 1.1 1.1 1.2 1.2 1.2 1.3 1.4 1.5 1.7 1.8  
TRANSP WIND DIR.E E E E E E SE SE SE S S S  
TRANSP WIND SPD.15 16 17 17 18 20 20 20 18 18 17 17  
   
FRIDAY
 
 
SKY/WEATHER.........MOSTLY CLOUDY (80-90 PERCENT). CHANCE OF RAIN  
SHOWERS AND SNOW SHOWERS.  
CHANCE OF PCPN......50 PERCENT.  
MAX TEMPERATURE.....AROUND 41.  
MIN HUMIDITY........75 PERCENT.  
DEWPOINT............33.  
WIND (20 FT)........  
SLOPE/VALLEY.......SOUTHEAST WINDS 8 TO 9 MPH SHIFTING TO THE EAST  
6 TO 7 MPH LATE IN THE AFTERNOON.  
MIXING HEIGHT.......4300 FT AGL.  
TRANSPORT WINDS.....SOUTH 18 TO 22 MPH SHIFTING TO THE EAST 14 TO  
21 MPH LATE IN THE AFTERNOON.  
PCPN AMOUNT.........0.06 INCHES.  
 
TIME (EST) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM  
SKY (%).........88 88 86 83 81 81 82 82 82 83 83 82  
WEATHER COV.....CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC  
WEATHER TYPE....RS RS RS SW SW SW RS RW RW RW RW RW  
TSTM COV........  
CHC OF PCPN (%).40 50 40 40 30 40 40 40 50 50 50 50  
TEMP............33 33 34 35 36 38 39 40 40 40 39 39  
DEWPOINT........32 32 32 33 33 33 33 33 33 33 33 34  
RH..............96 96 93 91 89 82 79 76 75 75 79 81  
20 FT WIND DIR..S S SE SE SE SE SE SE SE E E E  
20 FT WIND SPD..8 8 8 9 9 9 9 9 8 7 6 6  
20 FT WIND GUST.15 15 16 16 17 17 17 16 15 13 12 9  
MIX HGT (KFT)...1.9 2.0 2.0 2.2 2.4 3.2 3.9 4.3 3.8 3.0 2.1 1.6  
TRANSP WIND DIR.S S S S S S SE SE SE E E E  
TRANSP WIND SPD.18 20 20 20 20 21 22 22 21 18 16 14  
 

 
FORECASTER...MAIN  
REQUESTED BY...NATHAN MOREAU  
TYPE OF REQUEST...WILDFIRE  
.TAG 2427070.1/ALY  
.DELDT 11/21/24  
.FORMATTERVERSION 2.0.0  
.EMAIL NATHAN.MOREAU@MASS.GOV  
 
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