920
FNUS73 KBIS 211135
FWSBIS

Spot Forecast for 5-2...TNC
National Weather Service Bismarck ND
635 AM CDT Tue May 21 2024

Forecast is based on ignition time of 1100 CDT on May 21.
If conditions become unrepresentative, contact the National Weather
Service.


Mostly cloudy skies are expected at the burn site today, as northeast
winds of 8 to 14 mph become northerly at 12 to 16 mph with gusts to
around 20 mph in the late afternoon. Minimum relative humidity values are
expected to dip into the upper 30s. A light rain shower is possible in
the afternoon. Variable and gusty winds will be possible around any
rain shower.

Mostly sunny and quiet weather is expected at the burn site on
Wednesday, with humidity values in the mid 30s and a northwest wind
around 9 to 14 mph.


.TODAY...
Sky/weather.........Mostly cloudy. Slight chance of rain showers
                    after 3 pm.
CWR.................5 percent.
Chance of pcpn......20 percent.
LAL.................1.
Max temperature.....Around 65.
Min humidity........39 percent.
Wind (20 ft)........Northeast winds 8 to 14 mph in the morning shifting
                    to the north 12 to 16 mph in the afternoon with gusts
                    to around 20 mph.
Transport winds.....Northeast 9 to 16 mph shifting to the north 16
                    to 20 mph late in the afternoon.
Smoke dispersal.....Poor early in the morning increasing to very good
                    in the afternoon.
Haines Index........4 to 5 or low to moderate potential for large
                    plume dominated fire growth.

TIME (CDT)      9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........88  88  87  86  85  84  82  81  79
Weather cov.....                        SCH SCH SCH
Weather type....                        RW  RW  RW
CWR.............0   0   0   0   0   0   5   5   5
Chc of pcpn (%).0   0   0   0   0   0  20  20  20
LAL.............1   1   1   1   1   1   1   1   1
Temp............54  58  60  62  63  64  63  63  64
RH..............66  62  55  50  46  43  42  41  39
20 FT wind dir..NE  NE  NE  NE  NE  N   N   N   N
20 FT wind spd..8   9   11  12  14  14  14  14  15
20 FT wind gust.13  14  14  17  19  19  20  20  20
Mix hgt (kft)...0.8 1.7 4.4 6.0 6.8 7.3 6.6 6.7 6.0
Transp wind dir.E   E   NE  NE  N   N   N   N   N
Transp wind spd.9   10  14  15  16  16  17  20  20
Haines index....5   5   5   4   4   4   5   5   5

.TONIGHT...
Sky/weather.........Mostly cloudy then becoming partly cloudy.
                    Slight chance of rain showers early in the
                    evening.
CWR.................0 percent.
Chance of pcpn......20 percent.
LAL.................1.
Min temperature.....Around 40.
Max humidity........86 percent.
Wind (20 ft)........North winds 9 to 15 mph shifting to the
                    northwest around 8 to 10 mph overnight.
Mixing height.......400 ft AGL.
Transport winds.....North 12 to 16 mph.
Smoke dispersal.....Good early in the evening decreasing to poor late
                    in the night.
Haines Index........4 to 5 or low to moderate potential for large
                    plume dominated fire growth.

.WEDNESDAY...
Sky/weather.........Sunny.
CWR.................0 percent.
Chance of pcpn......0 percent.
LAL.................1.
Max temperature.....Around 66.
Min humidity........35 percent.
Wind (20 ft)........Northwest winds 9 to 14 mph.
Mixing height.......6900 ft AGL.
Transport winds.....Northwest 13 to 20 mph.
Smoke dispersal.....Very good.
Haines Index........4 to 5 or low to moderate potential for large
                    plume dominated fire growth.


$$
Forecaster...SCHILD
Requested by...Chris Gordon
Type of request...PRESCRIBED
.TAG 2414809.0/BIS
.DELDT 05/21/24
.FormatterVersion 2.0.0
.EMAIL Chris_gordon@tnc.org