Spot Forecast
Issued by NWS Bismarck, ND
Issued by NWS Bismarck, ND
701 FNUS73 KBIS 111006 FWSBIS Spot Forecast for W Cross Fence...TNC National Weather Service Bismarck ND 506 AM CDT Sat May 11 2024 Forecast is based on ignition time of 1200 CDT on May 11. If conditions become unrepresentative, contact the National Weather Service. .DISCUSSION... Mainly clear skies this morning will become partly clear this afternoon. High temperatures will warm into the upper 70s, bringing afternoon humidity values near 26 percent. A west wind of 7 to 14 mph can be expected, with some gusts near 20 mph this afternoon. Partly cloudy skies will be found tonight. A few isolated showers and thunderstorms are possible this evening, which may produce some gusty and erratic winds. Humidity will recover to near 64 percent. West winds will become a northwest wind around 0300 Sunday morning. This northwest wind will then become north on Sunday. Temperatures will slightly cool Sunday, although humidity values will be near 25 percent in the afternoon. An isolated rain shower may also return to the fire area Sunday afternoon. .REST OF TODAY... Sky/weather.........Mostly clear this morning becoming partly clear this afternoon. CWR.................0 percent. Chance of pcpn......10 percent. LAL.................1. Max temperature.....Around 79. Min humidity........26 percent. Wind (20 ft)........West winds 7 to 14 mph with gusts up to 20 mph in the afternoon. Mixing height.......9800 ft AGL. Transport winds.....West 12 to 22 mph with a few higher gusts through the afternoon. Smoke dispersal.....Very good (128600 knot-ft) early in the morning increasing to excellent (167300 knot-ft) in the afternoon. Haines Index........5 to 6 or moderate to high potential for large plume dominated fire growth. TIME (CDT) 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........43 55 58 65 64 55 Weather cov..... Weather type.... Tstm cov........ CWR.............0 0 0 0 0 0 Chc of pcpn (%).0 0 0 0 0 10 LAL.............1 1 1 1 1 1 Temp............74 76 77 78 78 79 RH..............34 31 29 27 27 26 20 FT wind dir..W W W W W W 20 FT wind spd..12 13 13 13 12 12 20 FT wind gust.19 20 20 20 19 19 Mix hgt (kft)...7.1 8.3 8.9 9.4 9.8 9.4 Transp wind dir.W W W W W W Transp wind spd.21 21 20 20 20 20 Haines index....5 5 5 6 6 6 Dispr kt-ft/1K..129 149 151 160 167 160 .TONIGHT... Sky/weather.........Partly cloudy. Slight chance of showers and thunderstorms in the evening. CWR.................5 percent. Chance of pcpn......20 percent. LAL.................1 until 2200, then 2 until 2400, then 1. Min temperature.....Around 49. Max humidity........64 percent. Wind (20 ft)........West winds 6 to 12 mph shifting to the northwest 6 to 12 mph after 0300. Gusty and erratic winds expected near thunderstorms in the evening. Mixing height.......400 ft AGL. Transport winds.....West 10 to 20 mph shifting to the north 10 to 15 mph overnight. Smoke dispersal.....Excellent (157600 knot-ft) early in the evening decreasing to good (97700 knot-ft) late in the night decreasing to poor (3800 knot-ft) early in the evening. Haines Index........5 to 6 or moderate to high potential for large plume dominated fire growth. TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM Sky (%).........46 44 43 36 40 45 39 38 35 37 36 29 Weather cov..... SCH SCH Weather type.... RW RW Tstm cov........ SCH SCH CWR.............0 0 0 0 5 5 0 0 0 0 0 0 Chc of pcpn (%).10 10 10 10 20 20 10 10 10 10 10 0 LAL.............1 1 1 1 2 2 1 1 1 1 1 1 Temp............78 77 73 68 64 62 60 59 57 55 54 53 RH..............28 29 35 40 46 50 51 53 57 61 61 64 20 FT wind dir..W W W W W NW NW NW NW NW NW NW 20 FT wind spd..12 10 9 7 8 9 8 8 9 9 9 8 20 FT wind gust.19 15 14 12 13 14 13 13 14 14 14 13 Mix hgt (kft)...9.3 7.0 0.8 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.4 0.4 Transp wind dir.W W W W W W NW NW N N N N Transp wind spd.20 16 10 10 9 13 12 12 12 12 10 12 Haines index....6 6 6 6 6 6 6 6 6 5 5 5 Dispr kt-ft/1K..158 98 7 5 4 5 5 5 5 5 4 4 .SUNDAY... Sky/weather.........Mostly sunny becoming partly cloudy. Slight chance of rain showers in the afternoon. CWR.................5 percent. Chance of pcpn......20 percent. LAL.................1. Max temperature.....Around 71. Min humidity........25 percent. Wind (20 ft)........North winds 6 to 12 mph. Mixing height.......5900 ft AGL. Transport winds.....North 10 to 20 mph. Smoke dispersal.....Poor (3400 knot-ft) early in the morning increasing to good (88400 knot-ft) in the afternoon. Haines Index........4 to 6 or low to high potential for large plume dominated fire growth. TIME (CDT) 6 AM 9 AM NOON 3 PM Sky (%).........23 26 26 37 Weather cov..... S CHC Weather type....NONE NONE NONE RNSHWR Tstm cov........ CWR.............0 0 0 5 Chc of pcpn (%).0 10 10 20 LAL.............1 1 1 1 Temp............52 58 67 70 RH..............63 47 30 25 20 FT wind......NW 7G12 N 9G13 N 9G14 N 11G17 Mix hgt (ft)....400 1100 4100 5600 Transport wind..N 9 N 12 N 15 N 17 Haines index....6 5 5 5 Dispr kt-ft/1K..3 11 52 83 $$ Forecaster...ANGLIN Requested by...Chris Gordon Type of request...PRESCRIBED .TAG 2413713.0/BIS .DELDT 05/11/24 .FormatterVersion 2.0.0 .EMAIL chris_gordon@tnc.org