Spot Forecast
Issued by NWS Twin Cities, MN
Issued by NWS Twin Cities, MN
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978 FNUS73 KMPX 191220 FWSMPX Spot Forecast for Whispering Ridge Rx...MN DNR National Weather Service Twin Cities/Chanhassen MN 720 AM CDT Thu Sep 19 2024 Forecast is based on ignition time of 1000 CDT on September 19. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. Please contact our office if you have questions or concerns with this forecast. .DISCUSSION... Any precipitation today will be occurring east of the burn site, with dry weather expected as temperatures again head toward the mid-80s. A cold front will be working through western MN this morning. Current forecast for wind direction looks good, with southwest winds expected to be in place by 10am that will slowly turn toward the west through the afternoon. Given that you will be post frontal today, there is potential for RHs to come in lower than forecast, with values closer to 30% possible. .REST OF TODAY... Sky/weather.........Mostly sunny (20-30 percent). Temperature.........75 at ignition...Max 84. RH..................76 percent at ignition...Min 41 percent. Wind (20 ft)........Winds southwest at 12 mph at ignition...otherwise Southwest winds 12 to 13 mph. Smoke dispersal.....Good /36600 knot-ft/ at ignition. Max...excellent /79000 knot-ft/. Mixing height.......2200 ft AGL at ignition...otherwise 4600 ft AGL. Transport winds.....Southwest 16 to 20 mph. Haines Index........5 or moderate potential for large plume dominated fire growth at ignition...max 5. TIME (CDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM 8PM 9PM Sky cover.......PC PC PC PC MCR MCR MCR MCR CLR CLR CLR CLR Weather cov..... Weather type.... Tstm cov........ Temp............75 77 79 81 82 82 83 82 80 78 72 69 RH..............76 71 64 54 50 45 41 45 47 51 59 63 20 FT wind dir..SW SW SW SW SW SW SW W W W W W 20 FT wind spd..12 12 12 12 12 13 13 12 10 9 8 7 20 FT wind gust.18 18 18 17 18 21 21 20 20 15 14 13 Mix hgt (kft)...2.2 2.7 3.1 3.7 4.4 4.6 4.1 3.7 1.9 0.7 0.5 0.5 Transp wind dir.SW SW SW SW SW SW SW W W W W W Transp wind spd.20 17 17 16 18 20 20 20 15 14 13 13 Haines index....5 5 5 4 4 4 4 4 4 4 4 4 .TONIGHT... Sky/weather.........Clear (0-5 percent). Temperature.........Min 56. RH..................Max 82 percent. Wind (20 ft)........West winds 6 to 10 mph. Smoke dispersal.....Fair (25200 knot-ft) early in the evening decreasing to poor (4200 knot-ft) late in the night. Mixing height.......500 ft AGL. Transport winds.....West 10 to 15 mph. Haines Index........4 to 5 or low to moderate potential for large plume dominated fire growth. .FRIDAY... Sky/weather.........Sunny (0-10 percent). Temperature.........Max 83. RH..................Min 33 percent. Wind (20 ft)........West winds 6 to 8 mph. Smoke dispersal.....Poor (3900 knot-ft) early in the morning increasing to good (54300 knot-ft) in the afternoon. Mixing height.......5400 ft AGL. Transport winds.....West 8 to 12 mph shifting to the southwest around 10 mph late in the afternoon. Haines Index........5 or moderate potential for large plume dominated fire growth. $$ Forecaster...Griesinger Requested by...Louise Spiczka Type of request...PRESCRIBED .TAG 2422708.0/MPX .DELDT 09/19/24 .FormatterVersion 2.0.0 .EMAIL louise.spiczka@state.mn.us