FNUS73 KMPX 091308 FWSMPX Spot Forecast for NW Prairie...USFWS National Weather Service Twin Cities/Chanhassen MN 808 AM CDT Fri May 9 2025 Forecast is based on ignition time of 1000 CDT on May 09. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. Please contact our office if you have questions or concerns with this forecast. .DISCUSSION... Another hot and dry day today with temperatures already well into the 70s at ignition and warming into the mid 80s this afternoon for a high. RH values will be near 40 around ignition and will be falling quickly late morning into afternoon with minimums in the low to mid 20s. Winds will be shifting through the day today with south winds to calm winds right now shifting to the southwest and then more west by ignition time. This shift will continue during the planned burn to the north by the late afternoon. Wind speeds should be around 10 mph today. .REST OF TODAY... Sky/weather.........Mostly sunny (20-30 percent). Temperature.........75 at ignition...Max 86. RH..................42 percent at ignition...Min 25 percent. Wind (20 ft)........Winds west at 10 mph at ignition...otherwise West winds 10 to 12 mph shifting to the north late in the afternoon. Smoke dispersal.....Fair /26800 knot-ft/ at ignition. Max...excellent /101000 knot-ft/. Mixing height.......1700 ft AGL at ignition...otherwise 7800 ft AGL. Transport winds.....West 12 to 17 mph shifting to the north 15 to 18 mph late in the afternoon. TIME (CDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM 8PM 9PM Sky cover.......MCR MCR PC PC PC PC MCR MCR MCR MCR MCR MCR Weather cov..... Weather type.... Tstm cov........ Temp............75 79 82 86 86 85 84 83 82 79 76 71 RH..............42 37 33 27 27 27 26 25 25 25 27 30 20 FT wind dir..W W NW NW NW N N N N N N N 20 FT wind spd..10 12 12 12 14 14 15 15 15 14 13 10 20 FT wind gust.18 20 20 20 22 22 23 23 23 23 21 20 Mix hgt (kft)...1.7 3.9 4.7 7.1 7.8 6.3 5.5 5.2 4.8 4.0 0.9 0.8 Transp wind dir.W W NW NW NW N N N N N N N Transp wind spd.17 14 12 13 15 16 17 18 20 21 18 18 .TONIGHT... Sky/weather.........Mostly clear (10-20 percent). Temperature.........Min 48. RH..................Max 59 percent. Wind (20 ft)........North winds 6 to 15 mph becoming light. Smoke dispersal.....Excellent (82100 knot-ft) early in the evening decreasing to poor (4100 knot-ft) late in the night. Mixing height.......400 ft AGL. Transport winds.....North 13 to 21 mph shifting to the northeast 10 to 12 mph after 3 am. .SATURDAY... Sky/weather.........Sunny (5-15 percent). Temperature.........Max 83. RH..................Min 19 percent. Wind (20 ft)........Light winds becoming east 5 to 8 mph early in the morning, then shifting to the southeast 8 to 10 mph in the afternoon. Smoke dispersal.....Poor (3600 knot-ft) early in the morning increasing to excellent (66200 knot-ft) in the afternoon. Mixing height.......5100 ft AGL. Transport winds.....East 9 to 10 mph shifting to the south 10 to 16 mph in the afternoon. $$ Forecaster...Carletta Requested by...Millette Type of request...PRESCRIBED .TAG 2513619.0/MPX .DELDT 05/09/25 .FormatterVersion 2.0.0 .EMAIL phil_millette@fws.gov