FNUS73 KDMX 221553 FWSDMX Spot Forecast for Slabcastle East...Iowa DNR-Wildlife Bureau National Weather Service Des Moines IA 1053 AM CDT Wed Apr 22 2026 Forecast is based on ignition time of 1100 CDT on April 22. 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... Generally sunny and warm conditions are expected throughout the day today. Light winds from the southwest will become from the south this afternoon at around 15 mph. Peak gusts between 20 and 25 mph are expected through the afternoon. Relative humidity values are in the low 70% range and will bottom out near 50% through the afternoon and into the evening. .REST OF TODAY... Sky/weather.........Mostly sunny (25-35 percent). Max temperature.....Around 78. Min humidity........54 percent. Wind (20 ft)........South winds 13 to 15 mph. Mixing height.......3100 ft AGL. Transport winds.....South 14 to 20 mph. Smoke dispersal.....Poor (22500 knot-ft) early in the morning increasing to fair (52600 knot-ft) in the afternoon. GFDI................2. TIME (CDT) 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........50 52 52 44 33 16 10 Weather cov..... Weather type.... Tstm cov........ Temp............68 69 72 73 74 75 76 RH..............73 70 64 59 57 56 54 20 FT wind dir..SW SW S S S S S 20 FT wind spd..13 13 13 14 15 15 15 20 FT wind gust.20 18 18 20 22 22 23 Mix hgt (kft)...1.7 2.0 2.4 2.8 2.9 3.0 3.1 Transp wind dir.SW S S S S S S Transp wind spd.15 14 16 17 18 20 20 GFDI............1 1 2 2 2 2 3 Smoke Dispersal.23 24 34 41 47 51 53 Smoke Cat.......PR PR PR FR FR FR FR .TONIGHT... Sky/weather.........Partly cloudy (20-30 percent) then becoming mostly cloudy (55-65 percent). Min temperature.....Around 59. Max humidity........93 percent. Wind (20 ft)........South winds 13 to 15 mph. Mixing height.......600 ft AGL. Transport winds.....South 17 to 23 mph. Smoke dispersal.....Fair (49500 knot-ft) early in the evening decreasing to poor (10200 knot-ft) late in the night. GFDI................2. TIME (CDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM Sky (%).........18 9 5 10 24 29 35 33 44 43 46 59 Weather cov..... Weather type.... Tstm cov........ Temp............75 73 68 66 65 64 63 62 62 61 61 60 RH..............54 57 68 73 75 78 81 84 87 90 90 93 20 FT wind dir..S S S S S S S S S S S S 20 FT wind spd..15 14 14 13 14 13 13 13 13 14 14 14 20 FT wind gust.23 23 21 21 22 22 21 22 21 22 24 24 Mix hgt (kft)...2.9 1.6 0.7 0.7 0.6 0.7 0.8 1.2 0.8 0.7 0.7 0.8 Transp wind dir.S S S S S S S S S S S S Transp wind spd.20 17 17 18 20 21 20 22 23 22 22 23 GFDI............2 2 2 1 1 1 1 1 1 1 1 1 Smoke Dispersal.50 24 10 11 11 13 13 23 16 13 13 16 Smoke Cat.......FR PR PR PR PR PR PR PR PR PR PR PR .THURSDAY... Sky/weather.........Mostly cloudy (75-85 percent). Slight chance of showers and thunderstorms early in the afternoon. Chance of showers and thunderstorms in the afternoon. Max temperature.....Around 74. Min humidity........64 percent. Wind (20 ft)........South winds 15 to 21 mph with gusts to around 32 mph. Gusty and erratic winds expected near thunderstorms in the afternoon. Mixing height.......3300 ft AGL. Transport winds.....South 22 to 31 mph. Smoke dispersal.....Poor (17000 knot-ft) early in the morning increasing to good (83700 knot-ft) in the afternoon. GFDI................3. TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM Sky (%).........70 78 74 73 73 76 74 81 81 87 88 84 Weather cov..... SCH CHC CHC CHC CHC CHC Weather type.... RW RW RW RW RW RW Tstm cov........ SCH CHC CHC CHC CHC CHC Temp............60 60 62 65 67 69 70 72 73 72 73 74 RH..............93 93 87 81 78 76 73 68 66 68 66 64 20 FT wind dir..S S S S S S S S S S S S 20 FT wind spd..15 15 16 18 18 20 21 21 20 20 20 20 20 FT wind gust.24 25 29 29 30 31 31 32 31 32 32 32 Mix hgt (kft)...0.9 1.0 1.6 2.1 2.4 2.7 2.9 3.0 3.2 3.3 3.2 2.9 Transp wind dir.S S S S S S S S S S S S Transp wind spd.22 23 26 30 31 31 29 28 29 30 30 29 GFDI............1 1 1 2 2 3 3 4 4 5 5 4 Smoke Dispersal.17 21 36 53 66 72 72 71 78 84 83 70 Smoke Cat.......PR PR PR FR GD GD GD GD GD GD GD GD $$ Forecaster...Rotter/Lee Requested by...Bryan Masters Type of request...PRESCRIBED .TAG 2611335.0/DMX .DELDT 04/22/26 .FormatterVersion 2.0.0 .EMAIL bryan.masters@dnr.iowa.gov