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Spot Forecast
Issued by NWS Bismarck, ND
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FNUS73 KBIS 120815
FWSBIS

Spot Forecast for Winberg (NPAM)...FWS
National Weather Service Bismarck ND
315 AM CDT Fri Apr 12 2024

Forecast is based on ignition time of 1400 CDT on April 12.
If conditions become unrepresentative, contact the National Weather
Service.

.DISCUSSION...

Mostly sunny today with light winds around 6 mph from the south this
afternoon, then winds will gust to 25 mph overnight from the south.
Minimum relative humidities this afternoon will be in the upper 20s.

.TODAY...

Sky/weather.........Sunny.
CWR.................0 percent.
Chance of pcpn......0 percent.
LAL.................1.
Max temperature.....Around 57.
Min humidity........28 percent.
Wind (20 ft)........Light winds becoming south 6 mph late in
                    the afternoon.
Mixing height.......5000 ft AGL.
Transport winds.....Northwest 5 mph shifting to the south
                    around 8 mph late in the afternoon.
Smoke dispersal.....Poor (1800 knot-ft).
Haines Index........2 to 4 or very low to low potential for large
                    plume dominated fire growth.

TIME (CDT)      2PM 3PM 4PM 5PM
Sky (%).........6   4   5   5
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0
Chc of pcpn (%).0   0   0   0
LAL.............1   1   1   1
Temp............52  54  56  57
RH..............39  35  32  30
20 FT wind dir..SW  S   S   S
20 FT wind spd..3   4   5   6
20 FT wind gust.5   6   8   10
Mix hgt (kft)...5.0 5.0 5.0 4.9
Transp wind dir.W   SW  SW  S
Transp wind spd.6   6   8   8
Haines index....3   3   4   4
Dispr kt-ft/1K..25  25  35  35

.TONIGHT...

Sky/weather.........Partly cloudy.
CWR.................0 percent.
Chance of pcpn......10 percent.
LAL.................1.
Min temperature.....Around 41.
Max humidity........67 percent.
Wind (20 ft)........Southeast winds 13 mph. Gusts up to 25 mph
                    overnight.
Mixing height.......500 ft AGL.
Transport winds.....South 15 mph increasing to 20 mph
                    overnight.
Smoke dispersal.....Fair (47400 knot-ft) early in the evening
                    decreasing to poor (5600 knot-ft) late in the
                    night.
Haines Index........3 to 6 or very low to high potential for large
                    plume dominated fire growth.

TIME (CDT)      6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........19  14  30  33  26  34  28  31  38  41  39  39
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Chc of pcpn (%).0   0   0   0   0   0   0   10  10  10  10  10
LAL.............1   1   1   1   1   1   1   1   1   1   1   1
Temp............57  56  53  49  47  46  44  45  45  44  42  42
RH..............29  32  38  46  51  53  57  55  55  55  62  62
20 FT wind dir..S   S   S   SE  SE  SE  SE  SE  S   S   S   S
20 FT wind spd..9   9   9   11  12  13  14  15  15  16  14  13
20 FT wind gust.11  12  12  17  18  20  21  22  24  24  21  20
Mix hgt (kft)...4.8 4.3 0.7 0.5 0.5 0.5 0.6 0.6 0.6 0.6 0.6 0.5
Transp wind dir.S   S   SE  SE  S   S   S   S   S   S   S   S
Transp wind spd.10  13  12  13  17  17  18  20  21  21  21  18
Haines index....4   4   4   3   3   3   4   4   5   5   6   6
Dispr kt-ft/1K..43  47  7   6   8   8   9   10  11  11  10  8

.SATURDAY...

Sky/weather.........Mostly sunny.
CWR.................0 percent.
Chance of pcpn......10 percent.
LAL.................1.
Max temperature.....Around 73.
Min humidity........30 percent.
Wind (20 ft)........South winds 10 mph shifting to the
                    northwest 10 mph in the afternoon.
Mixing height.......4000 ft AGL.
Transport winds.....South 18 mph shifting to the northwest 12
                    mph in the afternoon.
Smoke dispersal.....Poor (6200 knot-ft) early in the morning
                    increasing to fair (44300 knot-ft) in the
                    afternoon.
Haines Index........5 to 6 or moderate to high potential for large
                    plume dominated fire growth.

TIME (CDT)      6 AM      9 AM      NOON      3 PM
Sky (%).........31        35        30        19
Weather cov.....
Weather type....NONE      NONE      NONE      NONE
Tstm cov........
CWR.............0         0         0         0
Chc of pcpn (%).0         10        10        10
LAL.............1         1         1         1
Temp............42        48        64        72
RH..............62        58        41        32
20 FT wind......S 12G18   SW 10G15  NW 8G11   N 8G11
Mix hgt (ft)....500       800       1600      3300
Transport wind..S 18      SW 16     NW 10     NW 12
Haines index....6         6         6         5
Dispr kt-ft/1K..8         10        15        33

$$
Forecaster...SMITH
Requested by...Terry Gwilliams
Type of request...PRESCRIBED
.TAG 2410395.0/BIS
.DELDT 04/12/24
.FormatterVersion 2.0.0
.EMAIL Terry_Gwilliams@fws.gov
National Weather Service Weather Forecast Office
