FNUS73 KDMX 310503 FWSDMX SPOT FORECAST FOR DUNBAR SLOUGH...USFWS NATIONAL WEATHER SERVICE DES MOINES IA 1203 AM CDT SAT MAR 31 2012 FORECAST IS BASED ON IGNITION TIME OF 1200 CDT ON MARCH 31. 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...A WARM FRONT WILL LIFT ACROSS SOUTHWEST IOWA AND THE AIRMASS WILL BECOME UNSTABLE IN THE AFTERNOON. THERE IS A POTENTIAL FOR THUNDERSTORMS TO DEVELOP LATE IN THE AFTERNOON OR EVENING AS A WEAK UPPER LEVEL DISTURBANCE PUSHES ACROSS NORTHERN IOWA. .REST OF TONIGHT... SKY/WEATHER.........MOSTLY CLOUDY (55-65 PERCENT) THEN BECOMING PARTLY CLOUDY (40-50 PERCENT) THEN BECOMING MOSTLY CLOUDY (55-65 PERCENT). MIN TEMPERATURE.....AROUND 51. MAX HUMIDITY........93 PERCENT. EYE LEVEL WINDS.....SOUTHEAST WINDS 7 TO 10 MPH. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......800 FT AGL. MIXING WINDS........SOUTHEAST 14 TO 20 MPH. SMOKE DISPERSAL.....POOR TO POOR (3400-12000 KNOT-FT). WIND (20 FT)........SOUTHEAST WINDS 7 TO 10 MPH. TIME (CDT) 11 PM 1 AM 3 AM 5 AM SKY (%).........60 44 56 65 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE TSTM COV........ TEMP............59 57 55 53 RH..............80 83 86 89 20 FT WIND......SE 7 SE 8 SE 9 S 10 20 FT WIND GUST. 10 10 EYE LEVEL WIND..SE 5 SE 6 SE 6 S 7 EYE LVL WND GST. 10 10 MIX HGT (FT)....300 400 700 600 MIXNG WIND......SE 14 SE 20 SE 18 SE 17 HAINES INDEX....4 4 4 4 .SATURDAY... SKY/WEATHER.........PARTLY SUNNY (45-55 PERCENT). MAX TEMPERATURE.....AROUND 78. MIN HUMIDITY........50 PERCENT. EYE LEVEL WINDS.....SOUTH WINDS 8 TO 13 MPH. HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2200 FT AGL INCREASING TO 2700 FT AGL LATE IN THE MORNING. MIXING WINDS........SOUTH 14 TO 23 MPH INCREASING TO AROUND 25 MPH LATE IN THE AFTERNOON. SMOKE DISPERSAL.....POOR TO GOOD (3800-44700 KNOT-FT). TIME (CDT) 7 AM 10 AM 1 PM 4 PM SKY (%).........66 38 36 38 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE TSTM COV........ TEMP............51 61 72 77 RH..............93 70 59 50 EYE LEVEL WIND..SE 6G10 S 9G15 S 9G15 S 9G15 MIX HGT (FT)....300 1900 2700 2600 MIXNG WIND......SE 17 S 18 S 14 S 20 HAINES INDEX....4 5 6 5 $$ FORECASTER...BOKSA REQUESTED BY...DAN PAULSON TYPE OF REQUEST...PRESCRIBED .TAG 20120331.DUNBA.01/DMX