Spot Forecast
Issued by NWS Des Moines, IA
Issued by NWS Des Moines, IA
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740 FNUS73 KDMX 231001 FWSDMX Spot Forecast for Schrader- North Unit...Iowa DNR National Weather Service Des Moines IA 501 AM CDT Thu May 23 2024 Forecast is based on ignition time of 1200 CDT on May 23. If conditions become unrepresentative...contact the National Weather Service. An initial observation at ignition and a mid burn observation are required. Please relay them to the National Weather Service for each prescribed burn. .DISCUSSION... Periods of wet weather will again occur over the region late tonight into early Friday; late Saturday night into Monday and possibly by next Thursday. Otherwise expect seasonal temperatures and continuing green up with a very low grassland fire risk. .REST OF TODAY... Sky/weather.........Sunny (5-15 percent). Max temperature.....Around 76. Min humidity........40 percent. Wind (20 ft)........South winds 16 to 20 mph. Mixing height.......4500 ft AGL. Transport winds.....South 20 to 25 mph. Smoke dispersal.....Good (54000 knot-ft) early in the morning increasing to excellent (92400 knot-ft) in the afternoon. GFDI................0. Haines Index........4 or low potential for large plume dominated fire growth. TIME (CDT) 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........3 3 4 7 8 12 Weather cov..... Weather type.... Tstm cov........ Temp............72 73 75 76 76 76 RH..............53 49 45 42 40 40 20 FT wind dir..S S S S S S 20 FT wind spd..16 17 18 18 18 20 20 FT wind gust.24 25 28 28 28 29 Mix hgt (kft)...3.2 3.9 4.3 4.5 4.5 4.2 Transp wind dir.S S S S S S Transp wind spd.20 22 22 23 23 25 GFDI............0 0 0 0 0 0 Haines index....4 4 4 4 4 4 SDspl kt-ft/100054 74 81 90 90 92 .TONIGHT... Sky/weather.........Mostly clear (20-30 percent) then becoming mostly cloudy (75-85 percent). Chance of showers and thunderstorms in the evening, then showers with thunderstorms likely overnight. Min temperature.....Around 57. Max humidity........93 percent. Wind (20 ft)........Southeast winds 13 to 18 mph shifting to the south early in the morning. Gusty and erratic winds expected near thunderstorms in the evening and overnight. Gusty and erratic winds expected near thunderstorms after 3 am. Mixing height.......500 ft AGL. Transport winds.....Southeast 18 to 23 mph shifting to the southwest 15 to 17 mph after 3 am. Smoke dispersal.....Good (56200 knot-ft) early in the evening decreasing to poor (6500 knot-ft) late in the night. GFDI................0. Haines Index........4 or low potential for large plume dominated fire growth. TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM Sky (%).........7 21 42 64 80 97 Weather cov..... CHANCE CHANCE CHANCE DEFNTE DEFNTE Weather type....NONE RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR Tstm cov........ CHANCE CHANCE CHANCE LIKELY CHANCE Temp............75 72 66 64 63 61 RH..............40 51 68 75 87 93 20 ft wind......SE 18 SE 16 SE 16 SE 17 S 15 S 13 20 ft wind gust.28 24 24 26 23 20 Mix hgt (ft)....2800 600 500 700 500 600 Transport wind..S 23 SE 21 SE 21 S 23 S 18 S 16 GFDI............0 0 0 0 0 0 Haines index....4 4 4 4 4 4 SDspl kt-ft/100056 11 9 15 8 8 .FRIDAY... Sky/weather.........Mostly cloudy (80-90 percent) then becoming mostly sunny (25-35 percent). Rain showers and chance of thunderstorms early in the morning. Max temperature.....Around 67. Min humidity........50 percent. Wind (20 ft)........Southwest winds 12 to 14 mph shifting to the west 15 to 21 mph in the late morning and afternoon. Gusty and erratic winds expected near thunderstorms early in the morning. Mixing height.......4000 ft AGL. Transport winds.....West 14 to 23 mph shifting to the northwest around 24 mph in the afternoon. Smoke dispersal.....Poor (11700 knot-ft) early in the morning increasing to excellent (85300 knot-ft) in the afternoon. GFDI................0. Haines Index........2 to 4 or very low to low potential for large plume dominated fire growth. TIME (CDT) 6 AM 9 AM NOON 3 PM Sky (%).........86 50 30 21 Weather cov.....DEFNTE Weather type....RNSHWR NONE NONE NONE Tstm cov........CHANCE Temp............59 58 63 65 RH..............96 100 68 53 20 FT wind......SW 12G17 W 15G23 W 20G29 W 21G31 Mix hgt (ft)....800 1700 3400 4000 Transport wind..SW 16 W 21 W 24 NW 24 GFDI............0 0 0 0 Haines index....4 3 3 2 SDspl kt-ft/100012 30 72 85 $$ Forecaster...Vachalek Requested by...Jeff Feisel Type of request...PRESCRIBED .TAG 2414937.0/DMX .DELDT 05/23/24 .FormatterVersion 2.0.0 .EMAIL jeffrey.feisel@dnr.iowa.gov