Spot Forecast
Issued by NWS Boston, MA
Issued by NWS Boston, MA
557
FNUS71 KBOX 061405
FWSBOX
Spot Forecast for Mashpee Pine Barrens...Mass DCR
National Weather Service Boston/Norton MA
1005 AM EDT Wed May 6 2026
Forecast is based on ignition time of 0900 EDT on May 09.
If conditions become unrepresentative, contact the National
Weather Service.
.DISCUSSION...
Gusty south winds up to 35 mph today. Minimum relative humidity
expected to be 65 to 70 percent. Risk for showers starts around
2 PM, but a greater risk as we get closer to 6 PM. Showers and
possible thunderstorms overnight, winding down around daybreak
Thursday.
.SATURDAY...
Sky/weather.........Mostly cloudy. Slight chance of rain showers
early in the afternoon. Chance of rain showers
late in the afternoon.
CWR.................0 percent increasing to 33 percent late in the
afternoon.
Max temperature.....Around 63.
Min humidity........60 percent.
Dewpoint............47.
Max apparent temp...61.
Surface winds (mph).South winds 7 to 13 mph.
Wind (20 ft)........South winds 7 to 13 mph.
Mixing height.......2500 ft AGL.
Transport winds.....Southwest 14 to 21 mph.
Smoke dispersal.....Fair (22600 knot-ft) early in the morning
increasing to good (44900 knot-ft) in the
afternoon.
LVORI...............2.
ADI.................33 to 56.
CEILING (KFT).......7.8 decreasing to 5.3.
TIME (EDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........69 70 72 74 76 78 79 81 82
Weather cov..... SCH SCH CHC CHC CHC CHC
Weather type.... RW RW RW RW RW RW
Tstm cov........
CWR.............0 0 0 0 0 30 30 30 30
Temp............56 58 60 61 61 61 60 60 58
Dewpoint........46 46 47 47 47 47 47 48 48
RH..............69 64 62 60 60 60 62 64 69
Heat index (F)..56 58 60 61 61 61 60 60 58
20 FT wind dir..SW SW SW SW S S S S S
20 FT wind spd..7 9 10 12 13 13 13 13 12
20 FT wind gust.14 17 20 22 23 23 23 22 21
Surface wnd dir.SW SW SW SW S S S S S
Surface wnd spd.7 9 10 12 13 13 13 13 12
Surface wnd gst.14 17 20 22 23 23 23 22 21
Mix hgt (kft)...1.9 2.1 2.3 2.5 2.5 2.5 2.4 2.2 1.9
Transp wind dir.SW SW SW SW SW SW SW S S
Transp wind spd.14 16 17 18 20 21 21 20 18
LVORI...........3 1 1 1 1 1 1 1 3
ADI.............33 42 47 52 56 45 44 39 35
Vrate kt-ft/1K..23 30 35 39 43 45 43 37 31
Ventrate Cat....PR PR PR PR FR FR FR PR PR
Ceiling (kft)...10 9.3 8.6 7.8 7.1 6.4 6.0 5.7 5.3
.SATURDAY NIGHT...
Sky/weather.........Mostly cloudy. Chance of rain showers until
early morning, then slight chance of rain
showers early in the morning.
CWR.................33 percent decreasing to 6 percent until just
after midnight.
Min temperature.....Around 51.
Max humidity........89 percent.
Dewpoint............48.
Max apparent temp...57.
Surface winds (mph).South winds 5 to 10 mph.
Wind (20 ft)........South winds 5 to 10 mph.
Mixing height.......1000 ft AGL.
Transport winds.....South 10 to 18 mph.
Smoke dispersal.....Fair (28000 knot-ft) early in the evening
decreasing to poor (8700 knot-ft) late in the
night.
LVORI...............3 early in the evening.
ADI.................38 to 41 early in the evening.
CEILING (KFT).......4.0 decreasing to 2.8 after midnight.
TIME (EDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........80 79 78 76 73 71 64 58 52 53 56 58
Weather cov.....CHC CHC CHC CHC CHC CHC CHC CHC CHC SCH SCH SCH
Weather type....RW RW RW RW RW RW RW RW RW RW RW RW
Tstm cov........
CWR.............30 30 10 10 10 10 10 10 0 0 0 0
Temp............57 55 54 53 52 52 52 52 52 52 52 52
Dewpoint........48 48 48 48 48 48 48 49 49 49 48 48
RH..............72 77 80 83 86 86 86 89 89 89 86 86
Heat index (F)..57 55 54 53 52 52 52 52 52 52 52 52
20 FT wind dir..S S S S S S S S S S SW SW
20 FT wind spd..10 10 9 9 8 8 7 7 6 5 5 5
20 FT wind gust.20 17 16 16 15 15 14 14 13 12 10 9
Surface wnd dir.S S S S S S S S S S SW SW
Surface wnd spd.10 10 9 9 8 8 7 7 6 5 5 5
Surface wnd gst.20 17 16 16 15 15 14 14 13 12 10 9
Mix hgt (kft)...1.8 1.6 1.5 1.4 1.4 1.3 1.3 1.2 1.1 1.0 1.0 1.0
Transp wind dir.S S S S S S S S S S SW SW
Transp wind spd.18 18 18 17 16 15 14 12 10 10 10 10
LVORI...........3 3 M M M M M M M M M M
ADI.............41 38 M M M M M M M M M M
Vrate kt-ft/1K..28 25 23 21 19 17 15 12 10 9 9 9
Ventrate Cat....PR PR PR PR PR PR PR PR PR PR PR PR
Ceiling (kft)...4.9 4.6 4.2 4.0 3.7 3.5 3.3 3.0 2.8 2.9 3.1 3.2
.SUNDAY...
Sky/weather.........Partly sunny.
CWR.................0 percent.
Max temperature.....Around 64.
Min humidity........67 percent.
Dewpoint............50.
Max apparent temp...62.
Surface winds (mph).Southwest winds 5 to 13 mph.
Wind (20 ft)........Southwest winds 5 to 13 mph.
Mixing height.......1900 ft AGL.
Transport winds.....Southwest 10 to 18 mph.
Smoke dispersal.....Poor (9100 knot-ft) early in the morning
increasing to fair (26500 knot-ft) in the
afternoon.
LVORI...............MISSING.
ADI.................MISSING.
CEILING (KFT).......3.3 increasing to 6.2 late in the morning, then
increasing to 8.8 increasing to 12 early
increasing to 14 increasing to 17 in the
afternoon.
TIME (EDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........58 58 58 55 51 47 47 47 47 51 55 59
Weather cov.....
Weather type....
Tstm cov........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
Temp............52 52 53 56 59 61 62 62 61 61 61 60
Dewpoint........48 49 50 51 52 52 52 51 51 51 51 51
RH..............86 89 89 83 78 72 70 67 70 70 70 72
Heat index (F)..52 52 53 56 59 61 62 62 61 61 61 60
20 FT wind dir..SW SW SW SW SW SW SW S S S S S
20 FT wind spd..5 5 6 7 9 10 12 13 13 13 13 12
20 FT wind gust.9 9 10 12 14 16 17 18 20 20 20 20
Surface wnd dir.SW SW SW SW SW SW SW S S S S S
Surface wnd spd.5 5 6 7 9 10 12 13 13 13 13 12
Surface wnd gst.9 9 10 12 14 16 17 18 20 20 20 20
Mix hgt (kft)...1.0 1.1 1.2 1.5 1.7 1.9 1.9 1.8 1.8 1.7 1.7 1.6
Transp wind dir.SW SW SW SW SW SW SW S S S SW SW
Transp wind spd.10 12 12 13 13 14 15 15 16 17 18 18
LVORI...........M M M M M M M M M M M M
ADI.............M M M M M M M M M M M M
Vrate kt-ft/1K..9 11 12 16 19 22 25 24 25 26 27 25
Ventrate Cat....PR PR PR PR PR PR PR PR PR PR PR PR
Ceiling (kft)...3.3 3.5 3.6 6.2 8.8 12 14 17 19 18 17 17
$$
Forecaster...Belk
Requested by...Josh Nigro
Type of request...PRESCRIBED
.TAG 2612903.0/BOX
.DELDT 05/06/26
.FormatterVersion 2.0.0
.EMAIL Josh.Nigro@Mass.Gov