Suppression Forecast
Issued by NWS Boston, MA
Issued by NWS Boston, MA
Versions:
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801
FNUS71 KBOX 260952
FWSBOX
Spot Forecast for William Forward WMA Rx Fire...MassWildlife
National Weather Service Boston/Norton MA
552 AM EDT Thu Jun 26 2025
Forecast is based on ignition time of 0600 EDT on June 26.
If conditions become unrepresentative, contact the National
Weather Service.
.DISCUSSION...
Thursday will feature mostly cloudy skies with scattered rain
showers. Coverage of the showers will be limited and will be most
likely during the late morning and early afternoon. Winds will be
from the northeast at 10 to 12 mph with gusts up to 18 mph
earlier in the day, gradually becoming more easterly and
decreasing to 5 to 10 mph through the afternoon. Relative humidity
values will fall to around 60 percent by the afternoon.
For Friday, we expect mostly cloudy skies with periods of rain
showers. Not expecting a washout, but there could be some bouts of
wetting rain throughout the day. Winds will initially be from the
east at 5 to 10 mph, then becoming southeast and increasing to 10
to 12 mph with gusts up to 17mph. Relative humidity values will
fall to around 65 percent.
.TODAY...
Sky/weather.........Mostly cloudy. Slight chance of showers late in
the afternoon.
CWR.................0 percent increasing to 33 percent late in the
afternoon.
Max temperature.....Around 69.
Min humidity........61 percent.
Dewpoint............53.
Max apparent temp...67.
Surface winds (mph).Northeast winds 7 to 9 mph.
Wind (20 ft)........Northeast winds 7 to 9 mph.
Mixing height.......1800 ft AGL.
Transport winds.....East 9 to 18 mph.
Smoke dispersal.....Poor (8000 knot-ft) early in the morning
increasing to fair (24400 knot-ft) in the
afternoon.
LVORI...............2.
ADI.................12 to 36.
CEILING (KFT).......7.0 increasing to 9.0 early, then increasing to
20 early in the afternoon increasing to 25
early in the afternoon decreasing to 15
increasing to 20 late in the afternoon
decreasing to 11.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........72 68 65 63 61 59 60 61 62 69 75 82
Weather cov..... SCH SCH
Weather type.... RW RW
Tstm cov........
CWR.............0 0 0 0 0 0 0 0 30 30 30 30
Temp............63 63 64 64 65 65 66 67 67 67 66 65
Dewpoint........53 53 53 52 52 52 52 53 53 53 54 54
RH..............70 70 67 65 63 63 61 61 61 61 65 68
Heat index (F)..63 63 64 64 65 65 66 67 67 67 66 65
20 FT wind dir..NE NE NE NE NE NE NE E E E E E
20 FT wind spd..9 9 9 9 9 9 9 8 8 8 7 7
20 FT wind gust.17 17 17 16 16 16 15 14 14 13 12 10
Surface wnd dir.NE NE NE NE NE NE NE E E E E E
Surface wnd spd.9 9 9 9 9 9 9 8 8 8 7 7
Surface wnd gst.17 17 17 16 16 16 15 14 14 13 12 10
Mix hgt (kft)...1.2 1.2 1.5 1.6 1.6 1.8 1.7 1.7 1.4 1.2 1.1 1.0
Transp wind dir.NE E E E E E E E E E E E
Transp wind spd.18 17 18 17 15 15 13 13 12 10 10 9
LVORI...........3 3 3 3 1 1 2 2 2 2 2 3
ADI.............27 27 36 35 31 33 27 27 22 17 15 12
Vrate kt-ft/1K..19 19 24 24 21 23 19 18 15 11 10 8
Ventrate Cat....PR PR PR PR PR PR PR PR PR PR PR PR
Ceiling (kft)...7.0 7.0 7.0 7.0 7.0 9.0 20 25 25 15 20 11
.TONIGHT...
Sky/weather.........Mostly cloudy. Slight chance of showers.
CWR.................33 percent decreasing to 6 percent.
Min temperature.....Around 60.
Max humidity........87 percent.
Dewpoint............54.
Max apparent temp...65.
Surface winds (mph).East winds around 5 mph becoming light.
Wind (20 ft)........East winds around 5 mph becoming light.
Mixing height.......400 ft AGL.
Transport winds.....East 6 to 10 mph.
Smoke dispersal.....Poor (2200 knot-ft).
LVORI...............4.
ADI.................3 to 12.
CEILING (KFT).......10.
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........83 85 87 88 88 89 89 88 88 89 89 90
Weather cov.....SCH SCH SCH SCH SCH SCH SCH SCH SCH SCH SCH SCH
Weather type....RW RW RW RW RW RW RW RW RW RW RW RW
Tstm cov........
CWR.............30 30 20 20 20 20 20 20 10 10 10 10
Temp............65 64 64 63 63 63 62 62 62 61 61 61
Dewpoint........54 55 55 55 55 55 55 55 55 55 55 55
RH..............68 73 73 75 75 75 78 78 78 81 81 81
Heat index (F)..65 64 64 63 63 63 62 62 62 61 61 61
20 FT wind dir..E E SE E E E E E E E E NE
20 FT wind spd..5 3 2 2 2 2 2 2 2 2 2 2
20 FT wind gust.8 7 6 6 5 5 5 5 5 5 6 6
Surface wnd dir.E E SE E E E E E E E E NE
Surface wnd spd.5 3 2 2 2 2 2 2 2 2 2 2
Surface wnd gst.8 7 6 6 5 5 5 5 5 5 6 6
Mix hgt (kft)...1.2 1.1 1.0 0.9 0.7 0.5 0.4 0.4 0.4 0.5 0.6 0.8
Transp wind dir.E E SE SE SE SE SE E E E E E
Transp wind spd.8 8 6 6 6 6 6 7 7 8 9 10
LVORI...........3 3 3 4 4 4 4 4 4 5 4 4
ADI.............12 12 3 3 3 3 3 3 3 4 4 11
Vrate kt-ft/1K..8 8 5 5 3 2 2 3 2 4 5 7
Ventrate Cat....PR PR PR PR PR PR PR PR PR PR PR PR
Ceiling (kft)...10 10 10 10 10 11 11 10 10 10 10 10
.FRIDAY...
Sky/weather.........Mostly cloudy. Chance of showers.
CWR.................6 percent.
Max temperature.....Around 68.
Min humidity........65 percent.
Dewpoint............56.
Max apparent temp...68.
Surface winds (mph).Light winds becoming east 5 to 7 mph in the
late morning and afternoon.
Wind (20 ft)........East winds 5 to 7 mph early in the morning
becoming light, then becoming east 5 to 7 mph
in the late morning and afternoon.
Mixing height.......2400 ft AGL.
Transport winds.....East 6 to 14 mph.
Smoke dispersal.....Poor (5600 knot-ft) early in the morning
increasing to fair (22200 knot-ft) in the
afternoon.
LVORI...............4.
ADI.................8 to 32.
CEILING (KFT).......10 decreasing to 7.0, then increasing to 10
early decreasing to 8.0 early in the afternoon
decreasing to 7.0.
TIME (EDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM
Sky (%).........88 86 84 76 78 84
Weather cov.....S CHC S CHC S CHC S CHC S CHC CHANCE
Weather type....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR
Tstm cov........
CWR.............10 0 0 0 0 0
Temp............60 60 64 66 68 67
Dewpoint........55 56 57 57 57 56
RH..............84 87 78 73 68 68
Heat index (F)..60 60 64 66 68 67
20 ft wind......E 2 E 3 E 5 E 6 E 7 SE 7
20 ft wind gust.6 7 8 10 12 12
Surface wind....E 2 E 3 E 5 E 6 E 7 SE 7
Surface wnd gst.6 7 8 10 12 12
Mix hgt (ft)....900 1100 1400 2000 2400 2000
Transport wind..E 12 E 14 E 8 E 9 SE 10 SE 12
LVORI...........4 4 4 3 3 3
ADI.............13 20 15 23 32 29
Vrate kt-ft/1K..9 14 10 16 22 20
Ventrate Cat....POOR POOR POOR POOR POOR POOR
Ceiling (kft)...10 11 7.0 10 8.0 7.0
$$
Forecaster...FT
Requested by...Alex Entrup
Type of request...PRESCRIBED
.TAG 2516710.0/BOX
.DELDT 06/26/25
.FormatterVersion 2.0.0
.EMAIL alex.entrup@mass.gov