Spot Forecast
Issued by NWS Boston, MA
Issued by NWS Boston, MA
255
FNUS71 KBOX 221219
FWSBOX
Spot Forecast for Long Point...Mass DCR
National Weather Service Boston/Norton MA
819 AM EDT Wed Apr 22 2026
Forecast is based on ignition time of 1403 EDT on April 22.
If conditions become unrepresentative, contact the National
Weather Service.
.DISCUSSION...
For Wednesday, expecting generally cloudy conditions with an
increasing chance for showers through much of the day. Showers
will be scattered in nature, so the chance of a bonafide wetting
rain is low (around 15-20 percent). Winds initially from the
south shift to a more southeasterly direction by the afternoon.
Speeds will range from 12-15 mph with gusts as high as 23-25 mph.
Relative humidity values nearly steady between 65 and 70 percent
through much of the day.
For Thursday, expecting a clearing and drying trend throughout the
day with an outside chance for a isolated shower during the
afternoon. Most significant change will be a shift in wind
direction, with west winds developing by the afternoon. Speeds
will be around 10-12 mph with gusts as high as 20 mph. Relative
humidity values will also be lower than Wednesday, falling to
between 40 and 45 percent by the afternoon.
.REST OF TODAY...
Sky/weather.........Cloudy. Scattered rain showers.
CWR.................11 percent.
Max temperature.....Around 48.
Min humidity........65 percent.
Dewpoint............39.
Min apparent temp...39.
Surface winds (mph).South winds around 14 mph.
Wind (20 ft)........South winds around 14 mph.
Mixing height.......2600 ft AGL.
Transport winds.....South 21 to 23 mph.
Smoke dispersal.....Poor (0 knot-ft).
LVORI...............3.
ADI.................44 to 50.
CEILING (KFT).......2.5 decreasing to 2.0 late in the afternoon.
TIME (EDT) 2PM 3PM 4PM 5PM
Sky (%).........97 98 98 99
Weather cov.....SCT SCT SCT SCT
Weather type....RW RW RW RW
Tstm cov........
CWR.............10 10 10 10
Temp............47 46 45 45
Dewpoint........39 39 39 39
RH..............74 76 79 79
Heat index (F)..41 40 39 39
20 FT wind dir..S S S S
20 FT wind spd..14 14 14 14
20 FT wind gust.21 22 20 20
Surface wnd dir.S S S S
Surface wnd spd.14 14 14 14
Surface wnd gst.21 22 20 20
Mix hgt (kft)...2.6 2.5 2.4 2.0
Transp wind dir.S S S S
Transp wind spd.22 23 21 23
LVORI...........3 3 3 3
ADI.............49 50 44 45
Vrate kt-ft/1K..0 0 0 0
Ventrate Cat....PR PR PR PR
Ceiling (kft)...2.5 2.5 2.0 2.0
.TONIGHT...
Sky/weather.........Cloudy. Scattered rain showers early in the
evening, then isolated rain showers late in the
evening.
CWR.................11 percent decreasing to 0 percent early in the
morning.
Min temperature.....Around 42.
Max humidity........93 percent.
Dewpoint............40.
Min apparent temp...37.
Surface winds (mph).Southeast winds 5 to 13 mph.
Wind (20 ft)........Southeast winds 5 to 13 mph.
Mixing height.......1000 ft AGL.
Transport winds.....Southeast 17 to 23 mph decreasing to 5 to 13
mph early in the morning.
Smoke dispersal.....Poor (0 knot-ft).
LVORI...............5.
ADI.................3 to 42.
CEILING (KFT).......1.5 decreasing to 1.0 early in the evening,
then increasing to 1.5 early decreasing to 0.8
in the late evening and overnight.
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........100 100 99 98 96 94 93 91 90 90 89 89
Weather cov.....SCT SCT SCT ISO ISO ISO
Weather type....RW RW RW RW RW RW
Tstm cov........
CWR.............10 10 10 10 10 10 10 10 0 0 0 0
Temp............44 43 43 43 43 43 44 43 43 43 42 43
Dewpoint........39 39 39 39 40 40 40 40 40 41 40 41
RH..............82 86 86 86 89 89 86 89 89 93 93 93
Heat index (F)..38 37 37 37 37 38 39 39 39 39 39 40
20 FT wind dir..SE SE SE SE SE SE SE SE SE SE SE S
20 FT wind spd..13 12 10 10 10 9 8 7 6 6 5 5
20 FT wind gust.18 18 17 16 15 14 13 12 10 9 8 7
Surface wnd dir.SE SE SE SE SE SE SE SE SE SE SE S
Surface wnd spd.13 12 10 10 10 9 8 7 6 6 5 5
Surface wnd gst.18 18 17 16 15 14 13 12 10 9 8 7
Mix hgt (kft)...1.8 1.7 1.7 1.7 1.6 1.4 1.3 1.3 1.2 1.1 1.0 1.0
Transp wind dir.SE SE SE SE SE SE SE SE SE SE SE SE
Transp wind spd.23 23 23 23 22 20 17 17 13 12 7 5
LVORI...........3 4 4 4 4 4 4 5 5 6 6 6
ADI.............42 26 26 26 24 22 19 12 8 8 5 3
Vrate kt-ft/1K..0 0 0 0 0 0 0 0 0 0 0 0
Ventrate Cat....PR PR PR PR PR PR PR PR PR PR PR PR
Ceiling (kft)...1.5 1.0 1.5 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8 0.8
.THURSDAY...
Sky/weather.........Mostly cloudy. Isolated rain showers late in
the afternoon.
CWR.................0 percent.
Max temperature.....Around 57.
Min humidity........54 percent.
Dewpoint............43 decreasing to 40 late in the afternoon.
Max apparent temp...57.
Surface winds (mph).Light winds becoming west 5 to 10 mph until
late afternoon, then shifting to the northwest
8 to 9 mph late in the afternoon.
Wind (20 ft)........Light winds becoming west 5 to 10 mph until
late afternoon, then shifting to the northwest
8 to 9 mph late in the afternoon.
Mixing height.......2400 ft AGL.
Transport winds.....West 5 to 12 mph shifting to the northwest 15
to 20 mph in the late morning and afternoon.
Smoke dispersal.....Poor (0 knot-ft) early in the morning
increasing to good (40700 knot-ft) in the
afternoon.
LVORI...............4.
ADI.................5 to 42.
CEILING (KFT).......0.8 increasing to 4.5.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........87 85 83 77 72 66 65 65 64 61 57 53
Weather cov..... ISO ISO ISO
Weather type.... RW RW RW
Tstm cov........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
Temp............43 43 46 48 50 52 54 55 56 56 57 56
Dewpoint........41 41 43 43 44 45 45 45 44 43 41 40
RH..............93 93 89 83 80 77 71 69 64 62 55 55
Heat index (F)..41 40 44 45 47 52 54 55 56 56 57 56
20 FT wind dir..SW W W W W W W W W W NW NW
20 FT wind spd..3 5 5 6 7 8 9 9 10 9 9 8
20 FT wind gust.7 7 7 8 10 12 14 15 15 15 14 13
Surface wnd dir.SW W W W W W W W W W NW NW
Surface wnd spd.3 5 5 6 7 8 9 9 10 9 9 8
Surface wnd gst.7 7 7 8 10 12 14 15 15 15 14 13
Mix hgt (kft)...1.0 1.0 1.2 1.6 1.8 1.8 2.0 2.3 2.4 2.3 2.1 1.8
Transp wind dir.SW W W W W W W NW NW NW NW NW
Transp wind spd.5 5 7 12 15 16 18 20 20 18 17 16
LVORI...........6 6 5 3 3 3 3 3 1 1 1 2
ADI.............5 6 10 20 27 29 36 40 42 38 34 29
Vrate kt-ft/1K..0 0 0 0 0 0 0 0 41 37 31 25
Ventrate Cat....PR PR PR PR PR PR PR PR FR PR PR PR
Ceiling (kft)...0.8 0.8 0.8 1.5 2.0 2.5 3.0 3.0 3.0 3.5 4.5 5.0
$$
Forecaster...FT
Requested by...Josh Nigro
Type of request...PRESCRIBED
.TAG 2610748.1/BOX
.DELDT 04/22/26
.FormatterVersion 2.0.0
.EMAIL Josh.Nigro@Mass.Gov