Spot Forecast
Issued by NWS Bismarck, ND
Issued by NWS Bismarck, ND
650 FNUS73 KBIS 190833 FWSBIS Spot Forecast for DU 28...USFWS National Weather Service Bismarck ND 333 AM CDT Sun May 19 2024 Forecast is based on ignition time of 1000 CDT on May 19. If conditions become unrepresentative, contact the National Weather Service. .DISCUSSION... There is a 10 to 20 percent chance of light rain showers at the burn site today, but a wetting rain is not expected at this time. A mostly cloudy sky can be expected, with some clearing possible later in the afternoon. A light and variable wind early this morning will become east-southeast around 8 to 13 mph this afternoon. Relative humidity should steadily remain in the 40 to 50 percent range from planned ignition time through the afternoon. .REST OF TODAY... Sky/weather.........Mostly cloudy, with decreasing clouds late in the afternoon. Slight chance of showers. CWR.................0 percent. Chance of pcpn......20 percent. LAL.................1. Max temperature.....Around 66. Min humidity........41 percent. Wind (20 ft)........East-southeast winds around 8 to 13 mph. Mixing height.......4800 ft AGL. Transport winds.....East-southeast around 18 to 28 mph. Smoke dispersal.....Poor (16500 knot-ft) in the morning increasing to very good (100200 knot-ft) in the afternoon. Haines Index........2 to 4 or very low to low potential for large plume dominated fire growth. TIME (CDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........84 85 81 80 75 74 63 51 Weather cov..... SCH SCH SCH SCH Weather type.... RW RW RW RW Tstm cov........ CWR.............0 0 0 0 0 0 0 0 Chc of pcpn (%).10 10 10 20 10 20 20 20 LAL.............1 1 1 1 1 1 1 1 Temp............55 57 59 60 63 63 64 65 RH..............53 51 47 46 41 43 43 43 20 FT wind dir..SE E E E E E E E 20 FT wind spd..6 8 10 12 12 12 13 13 20 FT wind gust.12 13 15 17 18 19 19 19 Mix hgt (kft)...1.3 1.8 2.1 3.3 4.2 4.8 4.8 4.2 Transp wind dir.SE E E SE E E E E Transp wind spd.15 20 22 28 26 24 22 20 Haines index....4 4 3 3 3 2 2 2 Dispr kt-ft/1K..17 31 40 80 96 100 91 71 .TONIGHT... Sky/weather.........Partly to mostly cloudy. Chance of showers and a slight chance of thunderstorms. CWR.................0 percent. Chance of pcpn......30 percent. LAL.................1 until 1900, then 2 until 0400, then 1. Min temperature.....Around 44. Max humidity........96 percent. Wind (20 ft)........East-northeast winds around 8 to 12 mph in the evening, shifting to the northwest around 5 to 10 mph overnight. Mixing height.......500 ft AGL. Transport winds.....East around 15 to 20 mph early in the evening, shifting to the north around 8 to 12 mph late in the evening, then shifting to the northwest around 10 mph late in the night. Smoke dispersal.....Fair (55900 knot-ft) early in the evening decreasing to poor (3700 knot-ft) late in the night. Haines Index........3 or very low potential for large plume dominated fire growth. TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM Sky (%).........63 44 51 50 64 59 Weather cov.....CHANCE CHANCE CHANCE S CHC S CHC S CHC Weather type....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR Tstm cov........ S CHC S CHC S CHC S CHC CWR.............0 0 0 0 0 0 Chc of pcpn (%).30 30 30 20 20 20 LAL.............1 2 2 2 2 1 Temp............63 60 53 50 48 46 RH..............48 55 74 83 89 96 20 ft wind......E 12 E 11 NE 9 NE 8 NW 7 NW 7 20 ft wind gust.19 17 15 13 13 13 Mix hgt (ft)....3300 2500 700 600 500 900 Transport wind..E 20 E 16 NE 14 NE 10 N 8 N 10 Haines index....3 3 3 3 3 3 Dispr kt-ft/1K..56 35 8 5 4 8 .MONDAY... Sky/weather.........Partly cloudy. Slight chance of rain showers. CWR.................0 percent. Chance of pcpn......20 percent. LAL.................1. Max temperature.....Around 64. Min humidity........42 percent. Wind (20 ft)........Northwest winds around 8 to 12 mph. Mixing height.......6100 ft AGL. Transport winds.....Northwest around 12 to 20 mph. Smoke dispersal.....Poor (5900 knot-ft) early in the morning increasing to good (93600 knot-ft) in the afternoon. Haines Index........3 to 5 or very low to moderate potential for large plume dominated fire growth. TIME (CDT) 6 AM 9 AM NOON 3 PM Sky (%).........47 44 46 61 Weather cov.....S CHC S CHC S CHC S CHC Weather type....RNSHWR RNSHWR RNSHWR RNSHWR Tstm cov........ CWR.............0 0 0 0 Chc of pcpn (%).20 20 20 20 LAL.............1 1 1 1 Temp............45 49 58 62 RH..............96 86 58 45 20 FT wind......NW 8G13 NW 9G14 NW 10G15 NW 9G15 Mix hgt (ft)....600 1900 4500 5800 Transport wind..NW 12 NW 17 NW 20 W 18 Haines index....3 3 4 5 Dispr kt-ft/1K..6 28 76 93 $$ Forecaster...HOLLAN Requested by...Dustin Mireles Type of request...PRESCRIBED .TAG 2414622.0/BIS .DELDT 05/19/24 .FormatterVersion 2.0.0 .EMAIL dustin_mireles@fws.gov