Spot Forecast
Issued by NWS Milwaukee/Sullivan, WI
Issued by NWS Milwaukee/Sullivan, WI
961 FNUS73 KMKX 170941 FWSMKX Spot Forecast for Jersey Flats N Rx...WI DNR National Weather Service Milwaukee/Sullivan WI 441 AM CDT Fri May 17 2024 Forecast is based on ignition time of 0700 CDT on May 17. Please contact the National Weather Service if conditions become unrepresentative or if you have questions/concerns about this forecast. .DISCUSSION... Morning fog will dissipate by 8 AM and plenty of sunshine is expected today. Wind direction is the main uncertainty today, as a lake breeze will make its way inland. Light and variable winds are expected to become easterly by 2 PM but remain less than 8 MPH. With the very dry air mass in place, afternoon mixing heights may rise to 5000 ft. Minimum RH of 45% is forecast, but that could drop closer to 39% this afternoon. .REST OF TODAY... Sky/weather.........Sunny (20-30 percent). Areas of dense fog early in the morning. Temperature.........54 at ignition...Max 75. RH..................93 percent at ignition...Min 45 percent. Wind (20 ft)........Winds north at 3 mph at ignition...otherwise Light winds becoming southeast 5 to 6 mph late in the afternoon. Mixing height.......400 ft AGL at ignition...otherwise 4500 ft AGL. Transport winds.....Northwest 5 to 6 mph shifting to the southwest 6 to 7 mph late in the afternoon. Smoke dispersal.....Poor /2000 knot-ft/ at ignition. Max...fair /24300 knot-ft/. Haines Index........4 or low potential for large plume dominated fire growth at ignition...max 4. TIME (CDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........43 42 26 8 5 11 13 14 19 10 9 Weather cov.....ARS Weather type....FOG Tstm cov........ Temp............54 59 62 66 68 70 73 74 74 75 74 RH..............93 83 75 65 61 55 49 48 48 46 48 20 FT wind dir..N NW N N N NE SE SE SE SE SE 20 FT wind spd..3 3 2 3 3 3 4 4 5 6 5 20 FT wind gust.6 6 6 6 6 6 6 6 7 8 8 Mix hgt (kft)...0.4 0.6 1.2 2.3 3.6 4.2 4.4 4.5 4.4 4.1 3.4 Transp wind dir.N N N NW W W SW SW SW SW SW Transp wind spd.6 6 5 5 5 3 6 6 6 7 7 Haines index....4 4 4 4 4 4 4 4 4 4 4 SDspl kt-ft/10002 3 5 9 14 13 22 23 22 24 20 .TONIGHT... Sky/weather.........Mostly clear (5-15 percent). Temperature.........Min 53. RH..................Max 89 percent. Wind (20 ft)........Southeast winds 5 to 6 mph early in the evening becoming light. Mixing height.......400 ft AGL. Transport winds.....South 8 to 10 mph. Smoke dispersal.....Fair (14300 knot-ft) early in the evening decreasing to poor (3000 knot-ft) late in the night. Haines Index........4 or low potential for large plume dominated fire growth. TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM Sky (%).........3 6 3 3 7 7 10 14 9 7 9 9 Weather cov..... Weather type.... Tstm cov........ Temp............71 68 65 61 57 55 55 55 55 55 54 54 RH..............53 59 63 72 80 86 83 83 83 83 83 83 20 FT wind dir..SE SE SE SE SE SE SE S S S S S 20 FT wind spd..6 6 5 4 4 3 3 3 3 3 4 4 20 FT wind gust.10 10 8 8 8 7 7 7 8 8 10 10 Mix hgt (kft)...2.0 0.7 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4 Transp wind dir.S S SE S SE S S S S S S S Transp wind spd.8 10 9 9 9 9 9 9 10 10 10 10 Haines index....4 4 4 4 4 4 4 4 4 4 4 4 SDspl kt-ft/100014 6 3 3 3 3 3 3 3 3 3 3 .SATURDAY... Sky/weather.........Sunny (0-10 percent). Temperature.........Max 81. RH..................Min 45 percent. Wind (20 ft)........Light winds becoming south 5 to 8 mph early in the morning. Mixing height.......4100 ft AGL. Transport winds.....South 10 to 17 mph. Smoke dispersal.....Poor (3100 knot-ft) early in the morning increasing to good (54800 knot-ft) in the afternoon. Haines Index........4 to 5 or low to moderate potential for large plume dominated fire growth. TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........11 9 3 2 0 1 2 3 6 10 13 13 Weather cov..... Weather type.... Tstm cov........ Temp............54 57 64 69 74 77 78 80 80 81 81 79 RH..............83 83 70 66 57 52 50 47 47 46 46 49 20 FT wind dir..S S S S S S S S S S S S 20 FT wind spd..3 3 5 6 6 6 6 7 7 7 8 7 20 FT wind gust.8 8 10 10 11 11 12 13 13 13 14 13 Mix hgt (kft)...0.3 0.4 0.6 1.2 2.0 3.0 3.5 4.1 3.9 3.8 3.6 2.6 Transp wind dir.S S S S S S S S S SW SW SW Transp wind spd.10 10 12 13 14 14 15 15 16 16 17 15 Haines index....4 5 5 5 5 5 5 5 5 5 5 5 SDspl kt-ft/10003 3 6 13 24 36 46 53 55 53 54 34 $$ Forecaster...Cronce Requested by...Aaron Wright Type of request...PRESCRIBED .TAG 2414258.0/MKX .DELDT 05/17/24 .FormatterVersion 2.0.0 .EMAIL Aaron.Wright@Wisconsin.gov