Spot Forecast
Issued by NWS Milwaukee/Sullivan, WI
Issued by NWS Milwaukee/Sullivan, WI
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550 FNUS73 KMKX 231043 FWSMKX Spot Forecast for Jersey Flats Rx...WI DNR National Weather Service Milwaukee/Sullivan WI 543 AM CDT Thu May 23 2024 Forecast is based on ignition time of 0800 CDT on May 23. Please contact the National Weather Service if conditions become unrepresentative or if you have questions/concerns about this forecast. .DISCUSSION... Steady west-southwest winds are expected today. The lake breeze is not anticipated until after 7 PM. Minimum relative humidity values should drop to around 35 percent with dry air in place. Good to excellent smoke dispersal values are expected due to high mixing heights up to 9000 feet late this afternoon. There may be some light showers or sprinkles that develop for a brief period this afternoon. .REST OF TODAY... Sky/weather.........Mostly sunny (25-35 percent). Temperature.........61 at ignition...Max 76. RH..................65 percent at ignition...Min 36 percent. Wind (20 ft)........Winds west at 5 mph at ignition...otherwise Southwest winds 5 to 8 mph. Mixing height.......600 ft AGL at ignition...otherwise 7500 ft AGL. Transport winds.....West 12 to 18 mph. Smoke dispersal.....Poor /6100 knot-ft/ at ignition. Max...excellent /105900 knot-ft/ increasing to good (59200 knot-ft) early in the morning increasing to excellent (120700 knot-ft) in the afternoon in the afternoon. Haines Index........5 or moderate potential for large plume dominated fire growth at ignition...max 5. TIME (CDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........19 32 40 40 40 40 39 44 34 22 Weather cov..... Weather type.... Tstm cov........ Temp............61 66 70 72 74 75 75 75 74 74 RH..............65 56 49 44 40 37 37 37 40 40 20 FT wind dir..W W W W SW SW SW SW SW SW 20 FT wind spd..5 6 6 7 7 8 8 7 7 6 20 FT wind gust.10 10 10 11 11 13 13 12 12 11 Mix hgt (kft)...0.6 1.2 3.2 5.7 7.1 7.5 7.4 6.9 5.8 4.9 Transp wind dir.W W W W W W W SW SW SW Transp wind spd.12 13 17 18 17 18 18 16 14 14 Haines index....5 5 5 5 5 5 5 5 5 5 SDspl kt-ft/10006 14 48 91 106 121 119 97 69 59 .TONIGHT... Sky/weather.........Mostly clear (5-15 percent). Temperature.........Min 55. RH..................Max 80 percent. Wind (20 ft)........Southwest winds around 6 mph early in the evening becoming light. Mixing height.......400 ft AGL. Transport winds.....Southwest 7 to 12 mph shifting to the south 7 to 9 mph in the late evening and overnight. Smoke dispersal.....Fair (27700 knot-ft) early in the evening decreasing to poor (2400 knot-ft) late in the night. Haines Index........4 to 5 or low to moderate potential for large plume dominated fire growth. TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM Sky (%).........18 4 8 4 3 3 4 6 4 5 5 10 Weather cov..... Weather type.... Tstm cov........ Temp............74 72 69 64 62 61 59 58 57 57 56 55 RH..............41 44 49 60 65 67 72 75 75 72 72 74 20 FT wind dir..SW SW S S S S S S S SE SE SE 20 FT wind spd..6 4 3 3 2 3 3 3 3 4 4 4 20 FT wind gust.10 8 7 5 5 4 6 5 5 6 6 7 Mix hgt (kft)...2.8 0.6 0.5 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 Transp wind dir.W SW SW S S S S S S S S S Transp wind spd.12 7 7 7 8 8 8 8 9 9 9 9 Haines index....5 4 4 4 4 4 4 4 4 4 4 4 SDspl kt-ft/100028 4 3 2 3 3 3 3 3 3 3 3 $$ Forecaster...Cronce Requested by...Aaron Wright Type of request...PRESCRIBED .TAG 2414905.0/MKX .DELDT 05/23/24 .FormatterVersion 2.0.0 .EMAIL Aaron.Wright@Wisconsin.gov