484
FNUS71 KBOX 271215
FWSBOX
SPOT FORECAST FOR MONTAGUE PLAINS WMA 5/26/2026...MASSWILDLIFE
NATIONAL WEATHER SERVICE BOSTON/NORTON MA
815 AM EDT WED MAY 27 2026
FORECAST IS BASED ON IGNITION TIME OF 0900 EDT ON MAY 27.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL
WEATHER SERVICE.
DISCUSSION
PARTLY SUNNY CONDITIONS EARLY THIS MORNING WILL CONTINUE, WITH
INCREASING CLOUDINESS TOWARD PARTLY TO MOSTLY CLOUDY CONDITIONS AS
A COLD FRONT APPROACHES THIS AFTERNOON. STRONG HEATING PRIOR TO
FRONTAL PASSAGE WILL BOOST TEMPERATURES TO WELL INTO THE 80S, AND
ALSO CONTRIBUTE TO A DEEPENING MIXED LAYER AND THE EXPECTATION OF
EXCELLENT MIXING AND SMOKE DISPERSAL TOWARDS THE EAST. THERE IS A
LOW RISK FOR SHOWERS ALONG THE COLD FRONT BETWEEN 5 AND 7 PM, BUT
BETTER CHANCES SHOULD LIE SOUTH OF THE PRESCRIBED BURN SITE. THE
RISK FOR WETTING RAIN IS ALSO LOW IN ANY SHOWERS. RELATIVE
HUMIDITIES ARE EXPECTED TO DECREASE TO AROUND 30-35 PERCENT DURING
THE MID- AFTERNOON HOURS.
WINDS THROUGH MIDAFTERNOON WILL START OFF TOWARD THE SOUTHWEST
AROUND 5-10 MPH, BUT SHIFT TO WEST AT SIMILAR SPEEDS BY THIS
AFTERNOON. AS THE COLD FRONT PASSES, EXPECT A WINDSHIFT TO WEST-
NORTHWEST AROUND 10 MPH BY AROUND 7-8 PM, WITH GOOD RECOVERY IN
RHS AS TEMPS BEGIN TO FALL INTO THE NIGHT.
REST OF TODAY
SKY/WEATHER.........PARTLY SUNNY.
CWR.................3 PERCENT.
MAX TEMPERATURE.....AROUND 86.
MIN HUMIDITY........35 PERCENT.
DEWPOINT............59 DECREASING TO 55 LATE IN THE AFTERNOON.
MAX APPARENT TEMP...84.
SURFACE WINDS (MPH).SOUTHWEST WINDS 5 TO 8 MPH SHIFTING TO THE WEST
9 TO 12 MPH IN THE AFTERNOON.
WIND (20 FT)........WEST WINDS 5 TO 12 MPH.
MIXING HEIGHT.......6000 FT AGL.
TRANSPORT WINDS.....WEST 9 TO 17 MPH INCREASING TO 16 TO 20 MPH IN
THE AFTERNOON.
SMOKE DISPERSAL.....POOR (11700 KNOT-FT) EARLY IN THE MORNING
INCREASING TO EXCELLENT (102700 KNOT-FT) IN THE
AFTERNOON.
LVORI...............2.
ADI.................18 EARLY IN THE MORNING INCREASING TO 105 IN
THE AFTERNOON.
CEILING (KFT).......25 DECREASING TO 20 LATE IN THE AFTERNOON, THEN
INCREASING TO 25 LATE IN THE AFTERNOON.
TIME (EDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........65 71 56 56 64 54 43 45 43
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0
TEMP............70 75 78 81 83 85 85 85 86
DEWPOINT........60 60 61 59 58 57 56 55 55
RH..............71 61 55 47 42 38 37 36 35
HEAT INDEX (F)..70 75 78 81 83 84 84 84 84
20 FT WIND DIR..SW SW W W W W W W W
20 FT WIND SPD..5 6 7 8 10 10 12 10 10
20 FT WIND GUST.13 15 15 17 18 20 21 21 18
SURFACE WND DIR.SW SW W W W W W W W
SURFACE WND SPD.5 6 7 8 10 10 12 10 10
SURFACE WND GST.13 15 15 17 18 20 21 21 18
MIX HGT (KFT)...1.5 2.2 3.3 4.3 5.2 5.6 6.0 5.2 4.1
TRANSP WIND DIR.W W W W W W W W W
TRANSP WIND SPD.9 12 15 17 20 20 20 20 16
LVORI...........3 1 1 1 1 1 1 1 1
ADI.............18 33 63 88 105 105 105 105 86
VRATE KT-FT/1K..12 22 43 65 89 95 103 89 64
VENTRATE CAT....PR PR FR GD GD GD VGD GD GD
CEILING (KFT)...25 25 25 25 25 20 20 20 25
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY THEN
BECOMING PARTLY CLOUDY.
CWR.................2 PERCENT.
MIN TEMPERATURE.....AROUND 56.
MAX HUMIDITY........82 PERCENT.
DEWPOINT............55 DECREASING TO 51 AFTER MIDNIGHT.
MAX APPARENT TEMP...83.
SURFACE WINDS (MPH).NORTHWEST WINDS 6 TO 8 MPH SHIFTING TO THE
NORTH 5 TO 8 MPH WITH GUSTS TO AROUND 20 MPH IN
THE LATE EVENING AND EARLY MORNING, THEN
BECOMING LIGHT EARLY IN THE MORNING.
WIND (20 FT)........NORTHWEST WINDS 7 TO 8 MPH EARLY IN THE EVENING
DECREASING TO AROUND 6 MPH, THEN SHIFTING TO
THE NORTH 5 TO 8 MPH WITH GUSTS TO AROUND 20
MPH IN THE LATE EVENING AND EARLY MORNING
BECOMING LIGHT.
MIXING HEIGHT.......400 FT AGL.
TRANSPORT WINDS.....NORTH 8 TO 14 MPH.
SMOKE DISPERSAL.....GOOD (35100 KNOT-FT) EARLY IN THE EVENING
DECREASING TO POOR (3000 KNOT-FT) LATE IN THE
NIGHT.
LVORI...............3.
ADI.................50 EARLY IN THE EVENING DECREASING TO 4 LATE IN
THE NIGHT.
CEILING (KFT).......20 DECREASING TO 14 UNTIL JUST AFTER MIDNIGHT,
THEN INCREASING TO 20 AFTER MIDNIGHT.
TIME (EDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM
SKY (%).........30 60 46 39 33 32
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE NONE NONE
TSTM COV........
CWR.............0 0 0 0 0 0
TEMP............84 77 68 63 59 57
DEWPOINT........56 57 55 53 51 51
RH..............38 49 62 70 75 80
HEAT INDEX (F)..83 77 68 63 59 57
20 FT WIND......NW 8 NW 6 N 8 N 6 N 5 N 3
20 FT WIND GUST.18 14 18 13 8 8
SURFACE WIND....NW 8 NW 6 N 8 N 6 N 5 N 3
SURFACE WND GST.18 14 18 13 8 8
MIX HGT (FT)....2900 600 600 500 400 500
TRANSPORT WIND..NW 14 N 10 N 12 N 10 N 8 N 8
LVORI...........1 2 3 3 4 5
ADI.............50 7 5 5 4 4
VRATE KT-FT/1K..35 5 7 5 3 3
VENTRATE CAT....POOR POOR POOR POOR POOR POOR
CEILING (KFT)...20 14 15 15 20 20
THURSDAY
SKY/WEATHER.........MOSTLY SUNNY.
CWR.................6 PERCENT.
MAX TEMPERATURE.....AROUND 74.
MIN HUMIDITY........39 PERCENT.
DEWPOINT............50 DECREASING TO 47 LATE IN THE AFTERNOON.
MAX APPARENT TEMP...73.
SURFACE WINDS (MPH).NORTH WINDS 5 TO 12 MPH.
WIND (20 FT)........NORTH WINDS 5 TO 12 MPH.
MIXING HEIGHT.......6300 FT AGL.
TRANSPORT WINDS.....NORTH 9 TO 18 MPH INCREASING TO 20 TO 22 MPH
LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (3900 KNOT-FT) EARLY IN THE MORNING
INCREASING TO EXCELLENT (102900 KNOT-FT) IN THE
AFTERNOON INCREASING TO EXCELLENT (110700
KNOT-FT) LATE IN THE AFTERNOON.
LVORI...............3.
ADI.................9 EARLY IN THE MORNING INCREASING TO 105 IN THE
AFTERNOON.
CEILING (KFT).......20 DECREASING TO 13 IN THE MORNING, THEN
DECREASING TO 10 DECREASING TO 7.0 EARLY
INCREASING TO 8.0.
TIME (EDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM
SKY (%).........26 10 35 41 28 20
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE NONE NONE
TSTM COV........
CWR.............0 0 10 10 0 0
TEMP............56 60 67 71 73 73
DEWPOINT........50 52 51 49 48 47
RH..............80 75 56 46 41 39
HEAT INDEX (F)..56 60 67 71 73 73
20 FT WIND......N 5 N 8 N 10 N 12 N 12 N 12
20 FT WIND GUST.10 16 17 18 21 21
SURFACE WIND....N 5 N 8 N 10 N 12 N 12 N 12
SURFACE WND GST.10 16 17 18 21 21
MIX HGT (FT)....600 2600 5000 5400 6000 6300
TRANSPORT WIND..N 9 N 16 N 18 N 18 N 20 N 21
LVORI...........4 3 1 1 1 1
ADI.............9 52 105 105 105 105
VRATE KT-FT/1K..4 36 80 88 103 116
VENTRATE CAT....POOR POOR GOOD GOOD VYGD VYGD
CEILING (KFT)...20 15 10 7.0 7.0 8.0
FORECASTER...LOCONTO
REQUESTED BY...ALEX ENTRUP
TYPE OF REQUEST...PRESCRIBED
.TAG 2614475.1/BOX
.DELDT 05/27/26
.FORMATTERVERSION 2.0.0
.EMAIL ALEX.ENTRUP@MASS.GOV
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