FNUS73 KDMX 110040 FWSDMX SPOT FORECAST FOR WEST FORK WMA...IOWA DNR NATIONAL WEATHER SERVICE DES MOINES IA 740 PM CDT TUE APR 10 2012 FORECAST IS BASED ON IGNITION TIME OF 0930 CDT ON APRIL 11. 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 MOVE INTO THE STATE ON WEDNESDAY WITH MUCH LIGHTER WINDS THAN THE PAST FEW DAYS. WINDS WILL GENERALLY BE FROM THE NORTH AS SKIES REMAIN MOSTLY SUNNY. .TONIGHT... SKY/WEATHER.........CLEAR (0-10 PERCENT). AREAS OF FROST LATE IN THE NIGHT. TEMPERATURE.........MIN 19. RH..................MAX 79 PERCENT. EYE LEVEL WINDS.....NORTH WINDS 8 TO 17 MPH DECREASING TO 5 TO 7 MPH AFTER MIDNIGHT. HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......5300 FT AGL DECREASING TO 1900 FT AGL EARLY IN THE EVENING. MIXING WINDS........NORTH 14 TO 23 MPH DECREASING TO 6 TO 12 MPH IN THE LATE EVENING AND OVERNIGHT. SMOKE DISPERSAL.....FAIR (28600 KNOT-FT) DECREASING TO POOR (1100-3000 KNOT-FT) IN THE LATE EVENING AND OVERNIGHT. WIND (20 FT)........NORTH WINDS 8 TO 17 MPH DECREASING TO 5 TO 7 MPH AFTER MIDNIGHT. TIME (CDT) 7 PM 10 PM 1 AM 4 AM SKY (%).........6 0 7 1 WEATHER COV..... AREAS WEATHER TYPE....NONE NONE NONE FROST TSTM COV........ TEMP............46 35 30 25 RH..............29 47 60 73 20 FT WIND......N 17G25 N 10G15 N 8G10 N 6 EYE LEVEL WIND..N 12G25 N 7G15 N 6G10 N 4G5 MIX HGT (FT)....5300 300 300 300 MIXNG WIND......N 23 N 14 N 7 N 6 HAINES INDEX....3 3 3 3 .WEDNESDAY... SKY/WEATHER.........SUNNY (5-15 PERCENT). AREAS OF FROST EARLY IN THE MORNING. TEMPERATURE.........35 AT IGNITION...MAX 54. RH..................56 PERCENT AT IGNITION...MIN 26 PERCENT. EYE LEVEL WINDS.....NORTHEAST WINDS 5 TO 8 MPH. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2000 FT AGL INCREASING TO 5400 FT AGL. MIXING WINDS........NORTHEAST 3 TO 12 MPH DECREASING TO AROUND 2 MPH LATE IN THE AFTERNOON...THEN SHIFTING TO THE SOUTHEAST LATE IN THE AFTERNOON. SMOKE DISPERSAL.....POOR (1300 KNOT-FT) IN THE MORNING INCREASING TO GOOD (34000 KNOT-FT) BY AFTERNOON. WIND (20 FT)........WINDS NORTH AT 6 MPH AT IGNITION...OTHERWISE EAST WINDS 5 TO 8 MPH. TIME (CDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........7 9 10 11 11 12 12 12 13 13 13 14 WEATHER COV.....ARS ARS WEATHER TYPE....FST FST TSTM COV........ TEMP............22 26 31 35 40 44 47 49 51 53 52 52 RH..............79 67 56 48 40 35 31 29 27 26 27 27 20 FT WIND DIR..N N N N N N N NE NE NE E E 20 FT WIND SPD..5 6 6 6 6 6 6 6 7 7 8 8 20 FT WIND GUST. 10 10 EYE LVL WND DIR.N N N N N N N NE NE NE E E EYE LVL WND SPD.4 4 4 4 4 4 4 4 5 5 6 6 EYE LVL WND GST. 10 10 MIX HGT (KFT)...0.3 1.1 2.0 2.8 3.4 4.0 4.6 4.9 5.1 5.4 5.1 4.8 MIXNG WIND DIR..N N N N N N N N NE NE E SE MIXNG WIND SPD..6 8 10 12 12 10 8 6 3 2 2 2 HAINES INDEX....3 3 3 3 3 4 4 4 3 3 3 3 .WEDNESDAY NIGHT... SKY/WEATHER.........MOSTLY CLEAR (15-25 PERCENT). TEMPERATURE.........MIN 35. RH..................MAX 64 PERCENT. EYE LEVEL WINDS.....SOUTHEAST WINDS 6 TO 8 MPH. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......4600 FT AGL DECREASING TO 1800 FT AGL EARLY IN THE EVENING. MIXING WINDS........SOUTH 3 TO 7 MPH. SMOKE DISPERSAL.....POOR TO FAIR (1400-13800 KNOT-FT). WIND (20 FT)........SOUTHEAST WINDS 6 TO 8 MPH. TIME (CDT) 7 PM 11 PM 3 AM SKY (%).........14 13 17 WEATHER COV..... WEATHER TYPE....NONE NONE NONE TSTM COV........ TEMP............51 43 39 RH..............28 43 54 20 FT WIND......E 8G10 SE 7 SE 6 EYE LEVEL WIND..E 6G10 SE 5 SE 4G5 MIX HGT (FT)....4600 300 300 MIXNG WIND......SE 3 SE 6 S 7 HAINES INDEX....3 4 4 .THURSDAY... SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT) THEN BECOMING MOSTLY CLOUDY (75-85 PERCENT). CHANCE OF RAIN SHOWERS IN THE AFTERNOON. TEMPERATURE.........MAX 57. RH..................MIN 41 PERCENT. EYE LEVEL WINDS.....SOUTH WINDS 9 TO 18 MPH SHIFTING TO THE SOUTHEAST 20 TO 21 MPH IN THE AFTERNOON. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2000 FT AGL INCREASING TO 3900 FT AGL IN THE LATE MORNING AND AFTERNOON. MIXING WINDS........SOUTH 8 TO 13 MPH INCREASING TO 26 TO 29 MPH. SMOKE DISPERSAL.....POOR (1800 KNOT-FT) INCREASING TO EXCELLENT (89700 KNOT-FT) IN THE AFTERNOON. WIND (20 FT)........SOUTH WINDS 9 TO 18 MPH SHIFTING TO THE SOUTHEAST 20 TO 21 MPH IN THE AFTERNOON. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS IN THE AFTERNOON. TIME (CDT) 7 AM 9 AM 11 AM 1 PM 3 PM 5 PM SKY (%).........25 38 56 69 74 81 WEATHER COV..... CHANCE CHANCE CHANCE WEATHER TYPE....NONE NONE NONE RNSHWR RNSHWR RNSHWR TSTM COV........ ISOLTD ISOLTD ISOLTD TEMP............36 42 48 52 55 56 RH..............64 54 46 42 41 44 20 FT WIND......SE 9 SE 13 S 16 S 20 SE 21 SE 21 20 FT WIND GUST.10 15 25 30 30 30 EYE LEVEL WIND..SE 6 SE 9 S 11 S 14 SE 15 SE 15 EYE LVL WND GST.10 15 25 30 30 30 MIX HGT (FT)....300 1400 2600 3900 3700 3500 MIXNG WIND......S 8 S 18 S 22 S 18 S 25 S 29 HAINES INDEX....4 4 3 2 2 2 $$ FORECASTER...COGIL REQUESTED BY...DAVE WHITE TYPE OF REQUEST...PRESCRIBED .TAG 20120411.WESTF.01/DMX