052
FNUS73 KBIS 121228
FWSBIS

Spot Forecast for Browns Island RX...USFWS
National Weather Service Bismarck ND
728 AM CDT Wed Mar 12 2025

Forecast is based on ignition time of 1200 CDT on March 12.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...

Quiet weather with above normal temperatures expected at the burn
site today. Light and variable winds will persist through the
morning, becoming southwesterly at 5 to 10 mph around ignition time
before shifting to more southeasterly by the evening. Some mid and
high clouds around 10-15k feet will be relatively persistent through
the day, although precipitation chances this evening are favored to
stay well to the north of the burn site. Today`s high temperature
will be around 54 degrees, with minimum relative humidity dropping
to around 36 percent. Winds will be a bit stronger overnight tonight,
from the southeast around 15 mph, staying similar through the day
Thursday. It will be even warmer on Thursday, with a high temperature
around 64 and minimum relative humidity into the lower 30 percent range.

.REST OF TODAY...

Sky/weather.........Partly sunny.
CWR.................0 percent.
Chance of pcpn......0 percent.
Chance of thunder...0 percent.
Max temperature.....Around 54.
Min humidity........36 percent.
Wind (20 ft)........Calm winds this morning, becoming southwest 5
to 10 mph shifting to the southeast late in the
afternoon.
Mixing height.......3400 ft AGL.
Transport winds.....West 5 to 10 mph.
Smoke dispersal.....Poor (4000 knot-ft).

TIME (CDT)      12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........52  51  51  47  49  58
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0
Chc of pcpn (%).0   0   0   0   0   0
Chc of thdr (%).0   0   0   0   0   0
Temp............43  47  51  52  53  54
RH..............55  49  42  39  38  36
20 FT wind dir..SW  SW  SW  S   S   SE
20 FT wind spd..5   6   6   7   7   6
20 FT wind gust.6   8   8   9   8   8
Mix hgt (kft)...1.0 1.6 2.3 3.0 3.4 3.3
Transp wind dir.SW  W   W   W   W   W
Transp wind spd.5   7   8   8   8   8
Dispr kt-ft/1K..4   10  16  21  24  23

.TONIGHT...

Sky/weather.........Mostly cloudy.
CWR.................0 percent.
Chance of pcpn......0 percent.
Chance of thunder...0 percent.
Min temperature.....Around 35.
Max humidity........76 percent.
Wind (20 ft)........Southeast winds 10 to 15 mph.
Mixing height.......400 ft AGL.
Transport winds.....Southwest around 6 mph shifting to the
                    southeast 10 to 15 mph in the evening, then
                    shifting to the south 15 mph overnight.
Smoke dispersal.....Poor (2800 knot-ft).

TIME (CDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
Sky (%).........69     70     65     67     71     63
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
CWR.............0      0      0      0      0      0
Chc of pcpn (%).0      0      0      0      0      0
Chc of thdr (%).0      0      0      0      0      0
Temp............52     47     41     40     39     37
RH..............41     49     59     59     62     67
20 ft wind......SE 6   E 8    SE 11  SE 13  SE 14  S 13
20 ft wind gust.9      10     14     18     19     18
Mix hgt (ft)....2500   500    500    500    500    500
Transport wind..SW 6   SE 8   SE 12  S 17   S 16   S 16
Dispr kt-ft/1K..12     3      5      8      7      7

.THURSDAY...

Sky/weather.........Partly sunny.
CWR.................0 percent.
Chance of pcpn......0 percent.
Chance of thunder...0 percent.
Max temperature.....Around 64.
Min humidity........34 percent.
Wind (20 ft)........Southeast winds 10 to 15 mph.
Mixing height.......3500 ft AGL.
Transport winds.....South 15 to 20 mph.
Smoke dispersal.....Poor (6400 knot-ft) early in the morning
                    increasing to fair (59600 knot-ft) in the
                    afternoon.

TIME (CDT)      6 AM         10 AM        2 PM
Sky (%).........66           54           50
Weather cov.....
Weather type....NONE         NONE         NONE
Tstm cov........
CWR.............0            0            0
Chc of pcpn (%).0            0            0
Chc of thdr (%).0            0            0
Temp............37           43           59
RH..............70           67           41
20 FT wind......SE 12G15     SE 11G14     SE 13G15
Mix hgt (ft)....500          600          2400
Transport wind..S 15         S 15         S 16
Dispr kt-ft/1K..7            8            34

$$
Forecaster...JONES
Requested by...Dustin Mireles
Type of request...PRESCRIBED
.TAG 2506126.0/BIS
.DELDT 03/12/25
.FormatterVersion 2.0.0
.EMAIL dustin_mireles@fws.gov