FNUS73 KMPX 161309 FWSMPX Spot Forecast for Prairie Island Prairie Rx 2026...BIA National Weather Service Twin Cities/Chanhassen MN 809 AM CDT Thu Apr 16 2026 Forecast is based on ignition time of 1100 CDT on April 16. Please contact our office if you have questions or concerns with this forecast. .DISCUSSION... Elevated fire conditions are expected today with temperatures in the mid 60s at ignition rising into the mid to upper 70s, with RH dropping from mid 50s percent to at or just below 30 percent. There is high confidence in a southerly wind direction, with speeds at 5mph at ignition increasing to 10mph by the afternoon with gusts to 20mph also expected after midday. .REST OF TODAY... Sky/weather.........Sunny (0-5 percent). Temperature.........65 at ignition...Max 78. RH..................54 percent at ignition...Min 28 percent. Wind (20 ft)........Winds south at 5 mph at ignition...otherwise South winds 5 to 12 mph. Smoke dispersal.....Fair /13800 knot-ft/ at ignition. Max...excellent /96400 knot-ft/. Mixing height.......2300 ft AGL at ignition...otherwise 5700 ft AGL. Transport winds.....South 7 to 16 mph increasing to around 20 mph late in the afternoon. TIME (CDT) 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM 8PM 9PM 10P Sky cover.......CLR CLR CLR CLR CLR CLR CLR CLR CLR CLR CLR CLR Weather cov..... Weather type.... Tstm cov........ Temp............65 69 73 75 77 78 77 76 74 69 68 64 RH..............54 45 37 31 29 28 29 32 42 52 56 64 20 FT wind dir..S S S S S S S S S SE SE SE 20 FT wind spd..5 6 7 9 10 12 12 10 9 10 10 12 20 FT wind gust.9 10 13 14 16 17 17 17 18 17 18 18 Mix hgt (kft)...2.3 3.2 4.6 5.7 5.6 5.1 4.9 2.4 0.9 0.8 0.7 0.8 Transp wind dir.S S S S S S S S S S S SE Transp wind spd.7 8 10 14 16 20 20 20 16 17 18 18 .TONIGHT... Sky/weather.........Mostly clear (5-15 percent). Temperature.........Min 59. RH..................Max 75 percent. Wind (20 ft)........Southeast winds 9 to 12 mph. Smoke dispersal.....Good (49500 knot-ft) early in the evening decreasing to poor (10700 knot-ft) late in the night. Mixing height.......700 ft AGL. Transport winds.....South 16 to 20 mph. .FRIDAY... Sky/weather.........Mostly sunny (45-55 percent) then becoming mostly cloudy (70-80 percent). Chance of showers and thunderstorms in the morning, then showers and thunderstorms in the afternoon. Temperature.........Max 74. RH..................Min 66 percent. Wind (20 ft)........South winds 10 to 17 mph shifting to the west 18 to 20 mph late in the afternoon. Gusty and erratic winds expected near thunderstorms in the late morning and afternoon. Smoke dispersal.....Fair (14600 knot-ft) early in the morning increasing to good (57900 knot-ft) in the afternoon. Mixing height.......2600 ft AGL. Transport winds.....South 18 to 25 mph shifting to the west 23 to 25 mph late in the afternoon, then shifting to the northwest around 26 mph late in the afternoon. $$ Forecaster...Hasenstein Requested by...Martin Cassellius Type of request...PRESCRIBED .TAG 2610529.0/MPX .DELDT 04/16/26 .FormatterVersion 2.0.0 .EMAIL martin.cassellius@bia.gov