545
FNUS71 KBOX 041353
FWSBOX
SPOT FORECAST FOR MONTAGUE PLAINS WMA 5/4/2026...MASSWILDLIFE
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
953 AM EDT MON MAY 4 2026
FORECAST IS BASED ON IGNITION TIME OF 1000 EDT ON MAY 04.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL
WEATHER SERVICE.
DISCUSSION
BREEZY SOUTHWEST WINDS ARE EXPECTED THROUGH THE AFTERNOON WITH
GUSTS TO 30 MPH AT TIMES. IT WILL BE SUNNY WITH HIGHS TOPPING OUT
AROUND 70 AND MINIMUM RELATIVE HUMIDITY VALUES DROPPING TO NEAR
30 PERCENT.
TUESDAY WILL BE WARMER WITH HIGHS AROUND 80 AND WINDY AGAIN WITH
SOUTHWEST WINDS GUSTING TO 35 MPH. MINIMUM RELATIVE HUMIDITIES
WILL DROP TO BETWEEN 30 AND 35 PERCENT IN THE AFTERNOON. MOSTLY
SUNNY SKIES WILL GIVE WAY TO INCREASING CLOUD COVER LATE IN THE
DAY AND EVENING AND THERE IS A LOW RISK FOR AN ISOLATED SHOWER OR
THUNDERSTORM AFTER 6 PM.
REST OF TODAY
SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
MAX TEMPERATURE.....AROUND 71.
MIN HUMIDITY........29 PERCENT.
DEWPOINT............39.
MAX APPARENT TEMP...69.
SURFACE WINDS (MPH).SOUTHWEST WINDS 12 TO 17 MPH WITH GUSTS TO
AROUND 29 MPH.
WIND (20 FT)........SOUTHWEST WINDS 12 TO 17 MPH WITH GUSTS TO
AROUND 29 MPH.
MIXING HEIGHT.......7500 FT AGL.
TRANSPORT WINDS.....WEST 21 TO 29 MPH.
SMOKE DISPERSAL.....EXCELLENT (77700 KNOT-FT).
LVORI...............1.
ADI.................85 TO 105.
CEILING (KFT).......20 DECREASING TO 10 IN THE AFTERNOON.
TIME (EDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........16 28 15 16 13 19 17 21
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0
TEMP............57 60 62 65 66 68 68 69
DEWPOINT........38 38 38 39 39 40 40 40
RH..............40 33 30 29 29 30 29 30
HEAT INDEX (F)..57 60 62 65 66 68 68 69
20 FT WIND DIR..SW SW SW SW SW SW SW SW
20 FT WIND SPD..12 16 16 17 17 16 15 14
20 FT WIND GUST.25 29 29 28 28 26 24 23
SURFACE WND DIR.SW SW SW SW SW SW SW SW
SURFACE WND SPD.12 16 16 17 17 16 15 14
SURFACE WND GST.25 29 29 28 28 26 24 23
MIX HGT (KFT)...3.9 6.0 6.9 7.0 7.4 7.5 7.1 6.1
TRANSP WIND DIR.W SW W W W W W W
TRANSP WIND SPD.23 28 29 28 26 25 24 21
LVORI...........1 1 1 1 1 1 1 1
ADI.............85 105 105 105 105 105 105 93
VRATE KT-FT/1K..78 145 173 168 171 165 148 110
VENTRATE CAT....GD VGD EXL EXL EXL EXL VGD VGD
CEILING (KFT)...20 20 12 12 11 10 10 11
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR.
CWR.................0 PERCENT.
MIN TEMPERATURE.....AROUND 50.
MAX HUMIDITY........83 PERCENT.
DEWPOINT............43.
MAX APPARENT TEMP...68.
SURFACE WINDS (MPH).SOUTH WINDS 7 TO 12 MPH SHIFTING TO THE
SOUTHEAST 5 TO 7 MPH AFTER MIDNIGHT.
WIND (20 FT)........SOUTH WINDS 5 TO 9 MPH.
MIXING HEIGHT.......800 FT AGL.
TRANSPORT WINDS.....SOUTH 13 TO 22 MPH DECREASING TO AROUND 12 MPH
EARLY IN THE MORNING.
SMOKE DISPERSAL.....EXCELLENT (113600 KNOT-FT) EARLY IN THE EVENING
DECREASING TO FAIR (15700 KNOT-FT) LATE IN THE
NIGHT DECREASING TO POOR (7600 KNOT-FT) UNTIL
JUST AFTER MIDNIGHT.
LVORI...............3.
ADI.................98 EARLY IN THE EVENING DECREASING TO 5 LATE IN
THE NIGHT.
CEILING (KFT).......10 INCREASING TO 20 EARLY, THEN INCREASING TO
25 DECREASING TO 20 DECREASING TO 13 DECREASING
TO 12 EARLY IN THE MORNING.
TIME (EDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
SKY (%).........17 23 20 24 21 21
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE NONE NONE
TSTM COV........
CWR.............0 0 0 0 0 0
TEMP............68 63 57 54 52 51
DEWPOINT........41 42 43 44 45 45
RH..............32 44 57 69 80 80
HEAT INDEX (F)..68 63 57 54 52 51
20 FT WIND......SW 12 S 7 S 7 S 6 SE 6 SE 5
20 FT WIND GUST.18 10 10 10 10 12
SURFACE WIND....SW 12 S 7 S 7 S 6 SE 6 SE 5
SURFACE WND GST.18 10 10 10 10 12
MIX HGT (FT)....6000 800 800 800 800 800
TRANSPORT WIND..SW 22 SW 13 S 13 S 13 S 12 S 12
LVORI...........1 2 3 3 4 4
ADI.............98 6 8 6 5 5
VRATE KT-FT/1K..114 9 9 9 8 8
VENTRATE CAT....VYGD POOR POOR POOR POOR POOR
CEILING (KFT)...10 20 20 20 15 13
TUESDAY
SKY/WEATHER.........MOSTLY SUNNY. SLIGHT CHANCE OF RAIN SHOWERS
THROUGH EARLY AFTERNOON. SLIGHT CHANCE OF
THUNDERSTORMS LATE IN THE AFTERNOON. CHANCE OF
RAIN SHOWERS LATE IN THE AFTERNOON.
CWR.................0 PERCENT INCREASING TO 11 PERCENT LATE IN THE
AFTERNOON.
MAX TEMPERATURE.....AROUND 82.
MIN HUMIDITY........32 PERCENT.
DEWPOINT............47 INCREASING TO 52 IN THE LATE MORNING AND
AFTERNOON.
MAX APPARENT TEMP...80.
SURFACE WINDS (MPH).SOUTH WINDS 6 TO 15 MPH WITH GUSTS TO AROUND 28
MPH INCREASING TO 17 TO 20 MPH WITH GUSTS TO
AROUND 35 MPH LATE IN THE AFTERNOON.
WIND (20 FT)........SOUTH WINDS 6 TO 20 MPH BECOMING 8 TO 17 MPH
WITH GUSTS TO AROUND 33 MPH IN THE LATE MORNING
AND EARLY AFTERNOON, THEN INCREASING TO 18 TO
20 MPH WITH GUSTS TO AROUND 35 MPH LATE IN THE
AFTERNOON. GUSTY AND ERRATIC WINDS EXPECTED
NEAR THUNDERSTORMS LATE IN THE AFTERNOON.
MIXING HEIGHT.......7600 FT AGL.
TRANSPORT WINDS.....SOUTH 13 TO 21 MPH INCREASING TO SOUTHWEST 35
TO 38 MPH.
SMOKE DISPERSAL.....POOR (9500 KNOT-FT) EARLY IN THE MORNING
INCREASING TO EXCELLENT (92400 KNOT-FT) IN THE
AFTERNOON INCREASING TO EXCELLENT (168500
KNOT-FT).
LVORI...............3.
ADI.................14 EARLY IN THE MORNING INCREASING TO 105 IN
THE AFTERNOON.
CEILING (KFT).......11 DECREASING TO 9.0, THEN INCREASING TO 10
EARLY.
TIME (EDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM
SKY (%).........43 25 37 35 48 53
WEATHER COV..... S CHC S CHC S CHC S CHC CHANCE
WEATHER TYPE....NONE RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR
TSTM COV........ S CHC S CHC
CWR.............0 0 0 0 10 10
TEMP............51 55 66 74 78 80
DEWPOINT........45 49 52 53 53 52
RH..............83 74 52 40 34 32
HEAT INDEX (F)..51 55 66 74 78 80
20 FT WIND......S 6 S 6 S 10 S 14 S 17 S 18
20 FT WIND GUST.13 15 18 24 32 33
SURFACE WIND....S 6 S 6 S 10 S 14 S 17 S 18
SURFACE WND GST.13 15 18 24 32 33
MIX HGT (FT)....900 1500 3300 5400 7600 6700
TRANSPORT WIND..S 13 S 18 SW 23 SW 30 SW 37 SW 38
LVORI...........4 3 1 1 1 1
ADI.............14 37 93 105 105 105
VRATE KT-FT/1K..10 25 66 139 243 220
VENTRATE CAT....POOR POOR GOOD VYGD EXNT EXNT
CEILING (KFT)...12 11 9.0 11 11 10
FORECASTER...KJC
REQUESTED BY...ALEX ENTRUP
TYPE OF REQUEST...PRESCRIBED
.TAG 2612584.1/BOX
.DELDT 05/04/26
.FORMATTERVERSION 2.0.0
.EMAIL ALEX.ENTRUP@MASS.GOV
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page