524
FNUS71 KBOX 050551
FWSBOX

Spot Forecast for Frances Crane WMA North Rx Fire 11/05/2025...MassWildlife
National Weather Service Boston/Norton MA
1251 AM EST Wed Nov 5 2025

Forecast is based on ignition time of 0500 EST on November 05.
If conditions become unrepresentative, contact the National
Weather Service.

...HIGH WIND WARNING IN EFFECT FROM 10PM THIS EVENING THROUGH
8AM THURSDAY MORNING...

.DISCUSSION...

Wednesday will start off mostly clear with generally light west
winds between 5 and 8 mph with gusts up to 15 mph. Winds will then
become more southwesterly by the afternoon, increasing to between
12 and 16 mph with gusts up to 30 mph during the afternoon.
Relative humidity values will start between 70 and 75 percent and
falling to between 55 and 60 percent by the afternoon.

Very windy conditions are expected Wednesday night as west winds
increase to between 25 and 35 mph with gusts occasionally
approaching 65 mph. The strongest winds will occur between 10pm
and 8am. Winds will be accompanied by showers and perhaps a
rumble of thunder or two mainly earlier Wednesday night. Showers
will likely not be enough for a wetting rainfall

For Thursday, northwest winds gradually diminish through much of
the day, however they will still be elevated. Sustained winds will
start between 20 and 25 mph with gusts as high as 50 mph in the
morning. Speeds gradually step down to 15 to 20 mph with gusts up
to 40 through much of the day. Relative humidity values fall to
between 40 and 45 percent during the afternoon.

.REST OF TONIGHT...

Sky/weather.........Mostly clear.
CWR.................0 percent.
Min temperature.....Around 42.
Max humidity........81 percent.
Wind (20 ft)........West winds around 7 mph.
Mixing height.......400 ft AGL.
Transport winds.....West around 13 mph.
Smoke dispersal.....Poor (4300 knot-ft).

TIME (EST)      5AM
Sky (%).........13
Weather cov.....
Weather type....
Tstm cov........
CWR.............0
Temp............43
RH..............77
20 FT wind dir..W
20 FT wind spd..7
20 FT wind gust.17
Mix hgt (kft)...0.4
Transp wind dir.W
Transp wind spd.13
Vrate kt-ft/1K..4
Ventrate Cat....PR

.TODAY...

Sky/weather.........Mostly sunny then becoming partly sunny.
CWR.................2 percent.
Max temperature.....Around 60.
Min humidity........57 percent.
Wind (20 ft)........West winds 7 to 13 mph shifting to the
                    southwest 13 to 20 mph with gusts to around 32
                    mph in the afternoon.
Mixing height.......3000 ft AGL.
Transport winds.....West 12 to 21 mph shifting to the southwest 23
                    to 29 mph in the afternoon.
Smoke dispersal.....Poor (4200 knot-ft) early in the morning
                    increasing to excellent (60900 knot-ft) in the
                    afternoon.

TIME (EST)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
Sky (%).........18     9      43     79     72     63
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
CWR.............0      0      0      0      0      0
Temp............42     47     53     56     58     57
RH..............78     74     59     57     58     64
20 ft wind......W 7    W 8    W 10   SW 13  SW 15  SW 18
20 ft wind gust.16     16     16     21     26     31
Mix hgt (ft)....400    1000   2400   2800   2800   1800
Transport wind..W 12   W 13   W 16   SW 21  SW 23  SW 28
Vrate kt-ft/1K..4      11     33     51     56     42
Ventrate Cat....POOR   POOR   POOR   FAIR   FAIR   FAIR

.TONIGHT...

Sky/weather.........Mostly cloudy then becoming partly cloudy.
                    Slight chance of rain showers early. Chance of
                    rain showers late in the evening, then slight
                    chance of rain showers after midnight.
CWR.................7 percent.
Min temperature.....Around 44.
Max humidity........77 percent.
Wind (20 ft)........Windy. Southwest winds 22 to 30 mph with gusts
                    to around 47 mph shifting to the west 32 to 35
                    mph with gusts to around 64 mph after midnight.
Mixing height.......800 ft AGL.
Transport winds.....Southwest 29 to 37 mph shifting to the west 39
                    to 44 mph after midnight.
Smoke dispersal.....Excellent (116100 knot-ft) early in the evening
                    decreasing to fair (20300 knot-ft) late in the
                    night increasing to excellent (137600 knot-ft)
                    early in the morning.

TIME (EST)      6 PM         10 PM        2 AM
Sky (%).........72           82           59
Weather cov.....             CHANCE       S CHC
Weather type....NONE         RNSHWR       RNSHWR
Tstm cov........
CWR.............0            10           10
Temp............56           57           51
RH..............74           75           71
20 FT wind......SW 22G35     SW 28G45     W 35G60
Mix hgt (ft)....800          1600         3200
Transport wind..SW 29        SW 32        W 41
Vrate kt-ft/1K..20           45           116
Ventrate Cat....POOR         FAIR         VYGD

.THURSDAY...

Sky/weather.........Sunny.
CWR.................5 percent.
Max temperature.....Around 53.
Min humidity........44 percent.
Wind (20 ft)........Breezy. Northwest winds 20 to 29 mph with gusts
                    to around 54 mph decreasing to 16 to 18 mph
                    with gusts to around 33 mph in the afternoon.
Mixing height.......6600 ft AGL.
Transport winds.....Northwest 32 to 40 mph decreasing to 23 to 30
                    mph in the afternoon.
Smoke dispersal.....Excellent (98800 knot-ft).

TIME (EST)      6 AM         10 AM        2 PM
Sky (%).........29           9            10
Weather cov.....
Weather type....NONE         NONE         NONE
Tstm cov........
CWR.............10           0            0
Temp............44           50           52
RH..............70           56           44
20 FT wind......NW 29G54     NW 23G43     NW 18G32
Mix hgt (ft)....4000         4700         6600
Transport wind..NW 40        NW 33        NW 28
Vrate kt-ft/1K..142          136          157
Ventrate Cat....VYGD         VYGD         EXNT

$$
Forecaster...FT
Requested by...Alex Entrup
Type of request...PRESCRIBED
.TAG 2525094.0/BOX
.DELDT 11/05/25
.FormatterVersion 2.0.0
.EMAIL alex.entrup@mass.gov