FNUS73 KDMX 031424 FWSDMX SPOT FORECAST FOR LITTLE WALL LAKE...IOWA DNR NATIONAL WEATHER SERVICE DES MOINES IA 924 AM CDT WED APR 3 2013 FORECAST IS BASED ON IGNITION TIME OF 1200 CDT ON APRIL 03. 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... SURFACE HIGH PRESSURE WILL SHIFT EAST TODAY ALLOWING FOR A SOUTHERLY FLOW OVER THE NORTHWEST THIRD OF IOWA. A TIGHTENING PRESSURE GRADIENT WILL BRING INCREASING WIND SPEEDS TO THE AREA THIS AFTEROON. .TODAY... SKY/WEATHER.........MOSTLY SUNNY (35-45 PERCENT). MAX TEMPERATURE.....AROUND 52. MIN HUMIDITY........34 PERCENT. EYE LEVEL WINDS.....SOUTH WINDS 5 TO 14 MPH. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2100 FT AGL INCREASING TO 5000 FT AGL. MIXING WINDS........SOUTH 6 TO 15 MPH INCREASING TO 17 TO 20 MPH LATE IN THE AFTERNOON. SMOKE DISPERSAL.....POOR TO GOOD (1300-57000 KNOT-FT) INCREASING TO EXCELLENT TO EXCELLENT (64700-83200 KNOT-FT) LATE IN THE AFTERNOON. WIND (20 FT)........SOUTH WINDS 5 TO 14 MPH. TIME (CDT) 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........39 35 30 31 33 35 37 WEATHER COV..... WEATHER TYPE.... TSTM COV........ TEMP............44 47 49 51 51 51 50 RH..............43 40 37 34 36 37 41 20 FT WIND DIR..S S S S S S S 20 FT WIND SPD..12 12 13 13 14 13 13 20 FT WIND GUST.15 15 15 15 15 15 15 EYE LVL WND DIR.S S S S S S S EYE LVL WND SPD.9 9 9 9 10 9 9 EYE LVL WND GST.15 15 15 15 15 15 15 MIX HGT (KFT)...3.9 4.7 4.8 4.9 5.0 4.9 4.8 MIXNG WIND DIR..S S S S S S S MIXNG WIND SPD..12 12 13 14 15 17 20 HAINES INDEX....3 3 3 3 3 3 3 .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR (15-25 PERCENT). MIN TEMPERATURE.....AROUND 31. MAX HUMIDITY........88 PERCENT. EYE LEVEL WINDS.....SOUTHWEST WINDS 8 TO 13 MPH. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......4700 FT AGL DECREASING TO 1700 FT AGL EARLY IN THE EVENING. MIXING WINDS........SOUTH 14 TO 21 MPH DECREASING TO 9 TO 10 MPH IN THE LATE EVENING AND OVERNIGHT. SMOKE DISPERSAL.....FAIR TO EXCELLENT (21100-84900 KNOT-FT) DECREASING TO POOR TO POOR (1900-2300 KNOT-FT) IN THE LATE EVENING AND OVERNIGHT. WIND (20 FT)........SOUTHWEST WINDS 8 TO 13 MPH. TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY (%).........26 12 12 13 19 20 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TSTM COV........ TEMP............51 42 36 33 32 31 RH..............39 55 72 82 85 88 20 FT WIND......S 13 S 12 S 10 S 9 S 9 S 9 20 FT WIND GUST.15 15 15 10 10 10 EYE LEVEL WIND..S 9 S 9 S 7 S 6 S 6 S 6 EYE LVL WND GST.15 15 15 10 10 10 MIX HGT (FT)....4700 1700 300 300 300 300 MIXNG WIND......S 21 S 14 S 9 S 9 S 10 S 9 HAINES INDEX....3 4 4 4 4 4 .THURSDAY... SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT). MAX TEMPERATURE.....AROUND 58. MIN HUMIDITY........40 PERCENT. EYE LEVEL WINDS.....NORTHWEST WINDS 8 TO 10 MPH. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1600 FT AGL INCREASING TO 3900 FT AGL LATE IN THE MORNING...THEN INCREASING TO 5400 FT AGL IN THE AFTERNOON DECREASING TO 2000 FT AGL LATE IN THE AFTERNOON. MIXING WINDS........NORTHWEST 9 TO 17 MPH. SMOKE DISPERSAL.....POOR TO GOOD (2000-59200 KNOT-FT). WIND (20 FT)........NORTHWEST WINDS 8 TO 10 MPH. TIME (CDT) 7 AM 10 AM 1 PM 4 PM SKY (%).........20 36 45 29 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE TSTM COV........ TEMP............32 47 55 58 RH..............85 53 45 40 20 FT WIND......SW 8G10 W 9G10 W 9G10 NW 9G10 EYE LEVEL WIND..SW 6G10 W 6G10 W 6G10 NW 6G10 MIX HGT (FT)....300 1600 3900 5400 MIXNG WIND......SW 9 SW 17 W 14 W 13 HAINES INDEX....4 4 4 3 $$ FORECASTER...VACHALEK REQUESTED BY...IOWA DNR TYPE OF REQUEST...PRESCRIBED .TAG 20130403.LITTL.01/DMX