011
FNUS71 KBOX 170943
FWSBOX
SPOT FORECAST FOR MSSF -SOUTH TRACT-UNIT CC01...MA DCR FIRE
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
543 AM EDT THU APR 17 2025
FORECAST IS BASED ON IGNITION TIME OF 0700 EDT ON APRIL 17.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL
WEATHER SERVICE.
DISCUSSION
WEST WINDS AROUND 10 MPH WITH GUSTS UP TO 20 MPH TODAY. DRY, WITH
MINIMUM RELATIVE HUMIDITY AROUND 35 PERCENT. WINDS DIMINISH
TONIGHT. DRY CONDITIONS SHOULD CONTINUE INTO FRIDAY, WITH
SOUTHWEST WINDS OF 10 TO 15 MPH.
REST OF TODAY
SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....AROUND 57.
MIN HUMIDITY........35 PERCENT.
DEWPOINT............31 DECREASING TO 28 LATE IN THE AFTERNOON.
MIN APPARENT TEMP...32.
SURFACE WINDS (MPH).WEST WINDS 7 TO 9 MPH.
WIND (20 FT)........WEST WINDS 7 TO 9 MPH.
MIXING HEIGHT.......5800 FT AGL.
TRANSPORT WINDS.....WEST 17 TO 22 MPH.
SMOKE DISPERSAL.....FAIR (20500 KNOT-FT) EARLY IN THE MORNING
INCREASING TO EXCELLENT (106100 KNOT-FT) IN THE
AFTERNOON.
LVORI...............2.
ADI.................31 INCREASING TO 48 EARLY, THEN INCREASING TO
64 TO 71 LATE IN THE MORNING INCREASING TO 79
EARLY INCREASING TO 96 TO 105 DECREASING TO 95
LATE IN THE AFTERNOON INCREASING TO 105.
CEILING (KFT).......25 DECREASING TO 20 EARLY, THEN INCREASING TO
25 LATE IN THE AFTERNOON.
TIME (EDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........4 4 3 11 11 7 4 7 8 7 3
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0
TEMP............38 39 43 47 50 53 54 56 56 56 56
DEWPOINT........30 30 30 31 32 32 33 32 31 31 28
RH..............73 70 60 52 50 44 45 40 38 38 35
HEAT INDEX (F)..33 33 38 43 47 53 54 56 56 56 56
20 FT WIND DIR..W W W W W W W W W W W
20 FT WIND SPD..7 8 8 8 8 8 8 9 9 9 9
20 FT WIND GUST.16 17 16 16 16 16 16 16 16 16 16
SURFACE WND DIR.W W W W W W W W W W W
SURFACE WND SPD.7 8 8 8 8 8 8 9 9 9 9
SURFACE WND GST.16 17 16 16 16 16 16 16 16 16 16
MIX HGT (KFT)...1.4 1.9 2.6 3.1 3.8 4.4 5.1 5.7 5.8 5.5 5.2
TRANSP WIND DIR.W W W W W W W W W NW NW
TRANSP WIND SPD.17 20 20 18 17 18 20 21 21 22 22
LVORI...........3 3 1 1 1 1 1 1 1 1 1
ADI.............31 48 64 71 79 96 105 105 105 95 105
VRATE KT-FT/1K..21 32 45 50 57 71 87 105 106 106 101
VENTRATE CAT....PR PR FR FR FR GD GD VGD VGD VGD VGD
CEILING (KFT)...25 25 25 25 20 20 20 25 25 25 25
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CWR.................0 PERCENT.
MIN TEMPERATURE.....AROUND 34.
MAX HUMIDITY........75 PERCENT.
DEWPOINT............28.
MIN APPARENT TEMP...34.
SURFACE WINDS (MPH).WEST WINDS 5 TO 7 MPH EARLY IN THE EVENING
BECOMING LIGHT.
WIND (20 FT)........WEST WINDS 5 TO 6 MPH EARLY IN THE EVENING
BECOMING LIGHT.
MIXING HEIGHT.......300 FT AGL.
TRANSPORT WINDS.....NORTHWEST 13 TO 20 MPH DECREASING TO 7 TO 10
MPH AFTER MIDNIGHT.
SMOKE DISPERSAL.....GOOD (58400 KNOT-FT) EARLY IN THE EVENING
DECREASING TO POOR (1600 KNOT-FT) LATE IN THE
NIGHT.
LVORI...............3.
ADI.................82 DECREASING TO 3 TO 7.
CEILING (KFT).......25 DECREASING TO 20 AFTER MIDNIGHT, THEN
INCREASING TO 25 EARLY IN THE MORNING.
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........1 3 5 4 18 20 15 10 5 4 4 3
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............54 50 47 45 43 42 41 38 37 36 35 34
DEWPOINT........29 29 29 30 30 30 29 28 28 27 27 27
RH..............37 43 48 54 59 61 62 67 70 69 72 75
HEAT INDEX (F)..54 48 45 44 41 42 41 38 37 36 35 34
20 FT WIND DIR..W W W W W W W W W W W W
20 FT WIND SPD..7 6 5 3 3 2 2 2 2 2 2 2
20 FT WIND GUST.15 13 13 10 10 9 8 8 8 7 7 6
SURFACE WND DIR.W W W W W W W W W W W W
SURFACE WND SPD.7 6 5 3 3 2 2 2 2 2 2 2
SURFACE WND GST.15 13 13 10 10 9 8 8 8 7 7 6
MIX HGT (KFT)...3.3 1.9 0.6 0.6 0.5 0.5 0.4 0.3 0.3 0.3 0.3 0.3
TRANSP WIND DIR.NW NW NW W NW NW NW NW W W NW W
TRANSP WIND SPD.20 16 14 13 10 10 8 7 8 8 8 7
LVORI...........1 2 2 3 3 3 3 3 3 3 3 4
ADI.............82 7 6 6 5 5 4 3 4 4 4 3
VRATE KT-FT/1K..58 27 8 7 5 5 3 2 3 3 2 2
VENTRATE CAT....FR PR PR PR PR PR PR PR PR PR PR PR
CEILING (KFT)...25 25 25 25 25 25 25 20 20 20 25 25
FORECASTER...BELK
REQUESTED BY...AARON WHIDDON
TYPE OF REQUEST...PRESCRIBED
.TAG 2510820.0/BOX
.DELDT 04/17/25
.FORMATTERVERSION 2.0.0
.EMAIL AARON.WHIDDON@MASS.GOV
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