Spot Forecast
Issued by NWS Boston, MA
Issued by NWS Boston, MA
804
FNUS71 KBOX 031331
FWSBOX
Spot Forecast for Herman Covey WMA Prescribed fire...Masswildlife
National Weather Service Boston/Norton MA
931 AM EDT Wed Jun 3 2026
Forecast is based on ignition time of 1300 EDT on June 03.
If conditions become unrepresentative, contact the National
Weather Service.
.DISCUSSION...
High pressure will bring full sunshine and dry weather to the
prescribed burn area. This will bring warming temperatures into
the mid 80s by mid-afternoon. Mixing is expected to be excellent
moving through the next several hours, with mixing heights to
around 7000 ft, which will also allow for relative humidities to
tumble to around 25 percent. Light winds are expected this
morning, but tending light northerly by around noontime. Weak
transport winds generally around 10 mph or less will limit
transport of smoke towards the south, parallelling the nearby
Swift River.
.REST OF TODAY...
Sky/weather.........Sunny.
CWR.................0 percent.
Max temperature.....Around 83.
Min humidity........25 percent.
Dewpoint............43.
Max apparent temp...81.
Surface winds (mph).North winds around 5 mph early in the afternoon
becoming light.
Wind (20 ft)........North winds around 5 mph early in the afternoon
becoming light.
Mixing height.......7200 ft AGL.
Transport winds.....North 7 to 12 mph.
Smoke dispersal.....Good (40000 knot-ft) early in the morning
increasing to excellent (68800 knot-ft) in the
afternoon.
LVORI...............1.
ADI.................55 to 95.
CEILING (KFT).......20.
TIME (EDT) 1PM 2PM 3PM 4PM 5PM
Sky (%).........2 2 1 0 2
Weather cov.....
Weather type....
Tstm cov........
CWR.............0 0 0 0 0
Temp............79 81 81 82 83
Dewpoint........43 44 44 44 44
RH..............28 27 27 26 25
Heat index (F)..79 80 80 80 81
20 FT wind dir..N N N N NW
20 FT wind spd..5 5 5 3 3
20 FT wind gust.10 9 9 8 7
Surface wnd dir.N N N N NW
Surface wnd spd.5 5 5 3 3
Surface wnd gst.10 9 9 8 7
Mix hgt (kft)...6.9 7.1 7.2 6.9 6.7
Transp wind dir.N N N N NW
Transp wind spd.12 10 9 8 7
LVORI...........1 1 1 1 1
ADI.............95 88 79 67 55
Vrate kt-ft/1K..69 64 58 49 40
Ventrate Cat....GD GD FR FR FR
Ceiling (kft)...20 20 20 20 20
.TONIGHT...
Sky/weather.........Mostly clear.
CWR.................0 percent.
Min temperature.....Around 53.
Max humidity........80 percent.
Dewpoint............48 increasing to 51 late in the evening, then
decreasing to 47 after midnight.
Max apparent temp...80.
Surface winds (mph).Light winds.
Wind (20 ft)........Light winds.
Mixing height.......400 ft AGL.
Transport winds.....West 5 to 6 mph shifting to the south 5 to 8
mph until just after midnight.
Smoke dispersal.....Fair (19700 knot-ft) early in the evening
decreasing to poor (1600 knot-ft) late in the
night.
LVORI...............3.
ADI.................2 to 29.
CEILING (KFT).......20 increasing to 25.
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........1 0 2 1 12 3 11 2 5 2 2 15
Weather cov.....
Weather type....
Tstm cov........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
Temp............81 78 74 68 64 62 60 59 56 55 54 53
Dewpoint........46 48 50 53 52 50 49 48 48 47 47 47
RH..............29 35 43 59 65 65 67 67 74 74 77 80
Heat index (F)..80 78 74 68 64 62 60 59 56 55 54 53
20 FT wind dir..NW W SW S S S S S S S S SW
20 FT wind spd..3 2 2 2 3 3 3 3 3 2 1 1
20 FT wind gust.6 6 5 6 7 7 6 8 7 6 6 6
Surface wnd dir.NW W SW S S S S S S S S SW
Surface wnd spd.3 2 2 2 3 3 3 3 3 2 1 1
Surface wnd gst.6 6 5 6 7 7 6 8 7 6 6 6
Mix hgt (kft)...3.9 1.0 0.4 0.5 0.5 0.5 0.4 0.4 0.4 0.4 0.4 0.4
Transp wind dir.NW W SW S S S S S S SW SW SW
Transp wind spd.6 5 5 7 8 8 8 7 7 7 6 5
LVORI...........2 2 2 3 3 3 3 3 3 3 4 4
ADI.............29 6 2 3 4 4 4 3 3 3 3 4
Vrate kt-ft/1K..20 4 2 3 3 3 3 2 2 2 2 2
Ventrate Cat....PR PR PR PR PR PR PR PR PR PR PR PR
Ceiling (kft)...20 25 25 25 25 25 25 25 25 25 25 25
.THURSDAY...
Sky/weather.........Mostly sunny.
CWR.................0 percent.
Max temperature.....Around 88.
Min humidity........26 percent.
Dewpoint............50 increasing to 51 in the late morning and
afternoon.
Max apparent temp...85.
Surface winds (mph).Light winds becoming west 5 to 9 mph early.
Wind (20 ft)........West winds 5 to 9 mph early in the morning
becoming light, then becoming west 5 to 9 mph
early.
Mixing height.......7500 ft AGL.
Transport winds.....West 5 to 14 mph.
Smoke dispersal.....Poor (1500 knot-ft) early in the morning
increasing to excellent (82900 knot-ft) in the
afternoon.
LVORI...............3.
ADI.................4 early in the morning increasing to 100 in the
afternoon.
CEILING (KFT).......25.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........20 10 14 10 10 11 11 23 48 33 12 24
Weather cov.....
Weather type....
Tstm cov........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
Temp............54 57 61 68 73 78 81 84 86 87 87 88
Dewpoint........48 50 52 53 53 52 51 51 50 50 50 49
RH..............80 77 72 59 49 40 35 32 29 28 28 26
Heat index (F)..54 57 61 68 73 78 80 82 84 84 84 85
20 FT wind dir..W SW W W W W W W W W W W
20 FT wind spd..1 1 2 2 3 5 6 6 7 8 8 9
20 FT wind gust.5 5 6 6 7 8 9 10 12 13 13 14
Surface wnd dir.W SW W W W W W W W W W W
Surface wnd spd.1 1 2 2 3 5 6 6 7 8 8 9
Surface wnd gst.5 5 6 6 7 8 9 10 12 13 13 14
Mix hgt (kft)...0.4 0.4 0.6 1.4 2.4 3.6 4.9 5.6 6.2 7.4 7.5 6.2
Transp wind dir.W W W W W W W W W W W W
Transp wind spd.5 5 5 7 8 10 10 10 10 12 13 14
LVORI...........5 4 3 2 2 1 1 1 1 1 1 1
ADI.............4 4 4 12 25 48 64 71 71 90 100 95
Vrate kt-ft/1K..2 2 3 8 17 33 44 50 56 74 83 75
Ventrate Cat....PR PR PR PR PR PR FR FR FR GD GD GD
Ceiling (kft)...25 25 25 25 25 25 25 25 25 25 25 25
$$
Forecaster...Loconto
Requested by...Benjamin Mazzei
Type of request...PRESCRIBED
.TAG 2614852.2/BOX
.DELDT 06/03/26
.FormatterVersion 2.0.0
.EMAIL ben.mazzei@mass.gov