Spot Forecast
Issued by NWS Bismarck, ND
Issued by NWS Bismarck, ND
991
FNUS73 KBIS 011057
FWSBIS
Spot Forecast for Northwestern WPA...US FWS
National Weather Service Bismarck ND
557 AM CDT Sat Jun 1 2024
Forecast is based on ignition time of 1100 CDT on June 01.
If conditions become unrepresentative, contact the National Weather
Service.
.DISCUSSION...
Mostly sunny today with winds out of the west northwest at around
10 mph. The weather will be dry until increasing chances for
showers late tonight into the day Sunday.
.REST OF TODAY...
Sky/weather.........Sunny.
CWR.................0 percent.
Chance of pcpn......0 percent.
LAL.................1.
Max temperature.....Around 70.
Min humidity........28 percent.
Wind (20 ft)........West winds 10 to 12 mph.
Mixing height.......7600 ft AGL.
Transport winds.....West 17 to 21 mph.
Smoke dispersal.....Good (64500 knot-ft) early in the morning
increasing to very good (131000 knot-ft) in the
afternoon.
Haines Index........5 moderate potential for large
plume dominated fire growth.
TIME (CDT) 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........1 2 2 2 3 2 2
Weather cov.....
Weather type....
Tstm cov........
CWR.............0 0 0 0 0 0 0
Chc of pcpn (%).0 0 0 0 0 0 0
LAL.............1 1 1 1 1 1 1
Temp............63 65 66 67 69 69 69
RH..............44 37 34 32 30 30 28
20 FT wind dir..NW W W W W W W
20 FT wind spd..12 12 12 12 11 11 10
20 FT wind gust.18 18 18 17 17 15 14
Mix hgt (kft)...3.8 5.3 6.4 7.3 7.6 7.4 7.1
Transp wind dir.W W W W W W W
Transp wind spd.20 21 21 21 20 18 17
Haines index....6 5 5 5 5 5 5
Dispr kt-ft/1K..65 96 115 131 129 119 107
.TONIGHT...
Sky/weather.........Mostly clear. Slight chance of showers and
thunderstorms overnight.
CWR.................0 percent.
Chance of pcpn......20 percent.
LAL.................1 until 0200, then 2.
Min temperature.....Around 51.
Max humidity........84 percent.
Wind (20 ft)........West winds 5 to 9 mph shifting to the southeast
5 to 10 mph in the late evening and overnight.
Gusty and erratic winds expected near
thunderstorms overnight.
Mixing height.......300 ft AGL.
Transport winds.....West 8 to 16 mph shifting to the south 6 to 13
mph late in the evening, then increasing to 16
to 17 mph overnight.
Smoke dispersal.....Good (92600 knot-ft) early in the evening
decreasing to poor (1700 knot-ft) late in the
night.
Haines Index........5 or moderate potential for large plume
dominated fire growth.
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........2 3 18 24 25 24 21 23 23 32 28 27
Weather cov..... SCH SCH SCH SCH
Weather type.... RW RW RW RW
Tstm cov........ SCH SCH SCH SCH
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
Chc of pcpn (%).0 0 0 0 0 10 10 10 20 20 20 20
LAL.............1 1 1 1 1 1 1 2 2 2 2 2
Temp............69 70 67 61 58 56 55 54 53 53 53 52
RH..............28 30 37 46 49 55 55 54 59 61 66 71
20 FT wind dir..W W W W SE SE SE SE S SE SE SE
20 FT wind spd..9 7 5 5 5 5 6 7 8 9 9 10
20 FT wind gust.13 12 10 9 8 9 10 12 13 13 14 15
Mix hgt (kft)...6.6 5.1 1.2 0.7 0.3 0.3 0.3 0.3 0.3 0.3 0.3 0.4
Transp wind dir.W W W SW SE S S S S S S S
Transp wind spd.16 13 8 6 7 9 13 16 16 16 16 17
Haines index....5 5 5 5 5 5 5 5 5 5 5 5
Dispr kt-ft/1K..93 56 9 4 2 2 4 5 5 5 5 6
.SUNDAY...
Sky/weather.........Mostly sunny then becoming mostly cloudy.
Chance of showers and thunderstorms in the
morning, then rain showers with thunderstorms
likely in the afternoon.
CWR.................0 percent increasing to 84 percent.
Chance of pcpn......90 percent.
LAL.................2 until 1000, then 3 until 1600, then 4.
Max temperature.....Around 74.
Min humidity........64 percent.
Wind (20 ft)........South winds 11 to 14 mph. Gusty and erratic
winds expected near thunderstorms.
Mixing height.......3600 ft AGL.
Transport winds.....South 18 to 26 mph increasing to 28 to 30 mph
late in the afternoon.
Smoke dispersal.....Poor (6300 knot-ft) early in the morning
increasing to good (83400 knot-ft) in the
afternoon.
Haines Index........3 to 4 or very low to low potential for large
plume dominated fire growth.
TIME (CDT) 6 AM 9 AM NOON 3 PM
Sky (%).........40 39 43 65
Weather cov.....S CHC CHANCE CHANCE DEFNTE
Weather type....RNSHWR RNSHWR RNSHWR RNSHWR
Tstm cov........S CHC S CHC CHANCE CHANCE
CWR.............0 10 10 80
Chc of pcpn (%).20 40 40 90
LAL.............2 2 3 3
Temp............51 60 70 72
RH..............77 84 69 64
20 FT wind......SE 11G17 S 13G19 S 14G20 S 13G18
Mix hgt (ft)....400 1200 2900 3200
Transport wind..S 18 S 22 S 25 S 30
Haines index....4 4 3 3
Dispr kt-ft/1K..6 23 64 82
$$
Forecaster...HEINERT
Requested by...Jeff Dion
Type of request...PRESCRIBED
.TAG 2415415.0/BIS
.Dealt 06/01/24
.FormatterVersion 2.0.0
.EMAIL jeff_dion