Spot Forecast
Issued by NWS Bismarck, ND
Issued by NWS Bismarck, ND
664
FNUS73 KBIS 090956
FWSBIS
Spot Forecast for G-50/G-50 West...USFWS
National Weather Service Bismarck ND
456 AM CDT Thu May 9 2024
Forecast is based on ignition time of 0600 CDT on May 09.
If conditions become unrepresentative, contact the National Weather
Service.
.DISCUSSION...
Mostly clear to partly cloudy skies can be expected across the fire area today.
Light winds will become north at 6 to 12 mph this afternoon. Humidity values this
afternoon should hover around 40 percent. After a few isolated showers this evening,
a weak front will push through tonight. This will bring dry and breezier conditions
on Friday. Humidity values could lower to near 25 percent, while northwest winds
10 to 20 mph gusting to near 25 mph are forecast. Mainly clear skies and seasonable
temperatures are also expected for Friday.
.TODAY...
Sky/weather.........Mostly sunny to partly cloudy.
CWR.................0 percent.
Chance of pcpn......10 percent.
LAL.................1.
Max temperature.....Around 72.
Min humidity........39 percent.
Wind (20 ft)........Light winds becoming northwest 6 to 12 mph in
the afternoon.
Mixing height.......7000 ft AGL.
Transport winds.....North 8 to 18 mph.
Smoke dispersal.....Poor (2800 knot-ft) early in the morning
increasing to very good (101500 knot-ft) in the
afternoon increasing to very good (107700
knot-ft) late in the afternoon.
Haines Index........3 to 4 or very low to low potential for large
plume dominated fire growth.
TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
Sky (%).........19 19 21 21 22 26 36 37 35 37 40 43
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 10 0 0 10 10 10
LAL.............1 1 1 1 1 1 1 1 1 1 1 1
Temp............46 46 48 52 57 61 63 66 67 69 70 70
RH..............86 83 80 77 64 58 54 47 45 42 41 41
20 FT wind dir..NW NW NW NW NW NW NW NW NW NW NW NW
20 FT wind spd..2 2 3 5 7 9 9 10 11 11 12 11
20 FT wind gust.3 4 9 10 12 14 15 15 15 18 15
Mix hgt (kft)...0.4 0.4 0.4 0.5 1.3 3.1 4.3 5.4 6.1 6.3 6.7 7.0
Transp wind dir.N N N NW NW N N N N N N N
Transp wind spd.9 8 8 8 12 16 17 17 18 18 18 18
Haines index....4 3 3 3 3 3 3 3 3 3 3 4
Dispr kt-ft/1K..3 3 3 4 13 44 65 80 98 102 108 113
.TONIGHT...
Sky/weather.........Partly to mostly cloudy then becoming mostly clear to
partly cloudy near sunrise. Slight chance of rain
showers in the evening.
CWR.................Less than 5 percent.
Chance of pcpn......20 percent.
LAL.................1.
Min temperature.....Around 45.
Max humidity........72 percent.
Wind (20 ft)........Northwest winds 6 to 12 mph.
Mixing height.......400 ft AGL.
Transport winds.....Northwest 10 to 20 mph.
Smoke dispersal.....Very good (112600 knot-ft) early in the evening
decreasing to poor (18600 knot-ft) late in the
night decreasing to poor (5200 knot-ft) in the
late evening and overnight.
Haines Index........4 to 5 or low to moderate potential for large
plume dominated fire growth.
TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
Sky (%).........46 50 51 50 49 43 36 8 8 7 14 12
Weather cov.....SCH SCH SCH SCH SCH
Weather type....RW RW RW RW RW
Tstm cov........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
Chc of pcpn (%).20 20 20 20 20 10 10 0 0 0 0 0
LAL.............1 1 1 1 1 1 1 1 1 1 1 1
Temp............70 67 65 61 59 56 53 52 50 49 48 47
RH..............41 50 52 65 67 69 71 69 71 68 68 71
20 FT wind dir..NW NW NW NW NW NW NW NW NW NW NW NW
20 FT wind spd..11 12 11 10 11 10 11 11 11 12 12 11
20 FT wind gust.15 19 15 14 15 15 15 15 15 18 18 17
Mix hgt (kft)...6.6 3.7 1.4 0.8 0.6 0.5 0.4 0.5 0.5 0.5 0.5 0.5
Transp wind dir.N NW NW NW NW NW NW NW NW NW NW NW
Transp wind spd.20 17 15 14 13 14 14 16 15 16 16 16
Haines index....4 5 5 4 4 4 5 5 5 5 5 5
Dispr kt-ft/1K..113 56 19 10 6 6 5 6 6 7 7 7
.FRIDAY...
Sky/weather.........Sunny.
CWR.................0 percent.
Chance of pcpn......0 percent.
LAL.................1.
Max temperature.....Around 70.
Min humidity........27 percent.
Wind (20 ft)........Northwest winds 10 to 20 mph with gusts to
around 25 mph.
Mixing height.......8800 ft AGL.
Transport winds.....Northwest 15 to 25 mph with a few higher gusts
in the afternoon.
Smoke dispersal.....Poor (6100 knot-ft) early in the morning
increasing to good (76700 knot-ft) in the
afternoon increasing to very good (140500
knot-ft) early in the morning increasing to
excellent (200600 knot-ft) in the afternoon in
the afternoon.
Haines Index........5 or moderate potential for large plume
dominated fire growth.
TIME (CDT) 6 AM 9 AM NOON 3 PM
Sky (%).........19 24 21 24
Weather cov.....
Weather type....NONE NONE NONE NONE
Tstm cov........
CWR.............0 0 0 0
Chc of pcpn (%).0 0 0 0
LAL.............1 1 1 1
Temp............45 53 65 69
RH..............73 59 37 28
20 FT wind......NW 11G17 NW 12G19 NW 15G20 NW 16G22
Mix hgt (ft)....500 1000 6200 8800
Transport wind..NW 15 N 17 N 26 NW 24
Haines index....5 5 5 5
Dispr kt-ft/1K..6 16 141 189
$$
Forecaster...ANGLIN
Requested by...D. Marsden
Type of request...PRESCRIBED
.TAG 2413539.0/BIS
.DELDT 05/09/24
.FormatterVersion 2.0.0
.EMAIL dominic_marsden@fws.gov