FNUS73 KDMX 111246 FWSDMX SPOT FORECAST FOR SHEETS...IOWA DNR-USFWS NATIONAL WEATHER SERVICE DES MOINES IA 746 AM CDT WED APR 11 2012 FORECAST IS BASED ON IGNITION TIME OF 0805 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 FROM MANITOBA INTO THE MISSOURI RIVER VALLEY EARLY THIS MORNING WILL MOVE SLOWLY EASTWARD EXITING INTO THE MISSISSIPPI VALLEY BY LATE AFTERNOON. CONDITIONS WILL REMAIN QUITE DRY TODAY BUT WITH MUCH LESS WIND THAN THE PAST SEVERAL DAYS. SPOT FORECASTS NEED TO BE SUBMITTED...AT A MINIMUM...TWO HOURS BEFORE THE PRESCRIBED BURN. THE PREFERENCE IS THE AFTERNOON OR EVENING THE DAY BEFORE. .TODAY... SKY/WEATHER.........SUNNY (0-10 PERCENT). AREAS OF FROST EARLY IN THE MORNING. MAX TEMPERATURE.....AROUND 55. MIN HUMIDITY........27 PERCENT. EYE LEVEL WINDS.....NORTH WINDS 5 TO 8 MPH. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2200 FT AGL INCREASING TO 6600 FT AGL. MIXING WINDS........NORTHEAST 3 TO 10 MPH. SMOKE DISPERSAL.....POOR TO GOOD (1500-35800 KNOT-FT). WIND (20 FT)........NORTH WINDS 5 TO 8 MPH. TIME (CDT) 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........3 3 3 2 2 2 2 3 4 5 6 WEATHER COV.....ARS WEATHER TYPE....FST TSTM COV........ TEMP............30 34 38 42 46 49 51 53 54 53 52 RH..............60 54 46 39 35 31 29 28 27 29 33 20 FT WIND DIR..N N N N N N N N N N N 20 FT WIND SPD..7 7 8 8 7 7 7 8 8 7 5 20 FT WIND GUST. 10 10 10 10 EYE LVL WND DIR.N N N N N N N N N N N EYE LVL WND SPD.5 5 6 6 5 5 5 6 6 5 4 EYE LVL WND GST. 10 10 10 10 MIX HGT (KFT)...1.2 2.2 3.2 3.8 4.4 5.0 5.6 6.1 6.6 6.1 5.6 MIXNG WIND DIR..N N N N N N N N N N NE MIXNG WIND SPD..8 9 10 10 9 8 7 5 3 3 3 HAINES INDEX....5 5 5 5 5 5 5 5 5 5 5 .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT). WIDESPREAD FROST AFTER MIDNIGHT. MIN TEMPERATURE.....AROUND 30. MAX HUMIDITY........78 PERCENT. EYE LEVEL WINDS.....LIGHT WINDS. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......5000 FT AGL DECREASING TO 1800 FT AGL EARLY IN THE EVENING. MIXING WINDS........SOUTHEAST 2 TO 3 MPH. SMOKE DISPERSAL.....POOR TO FAIR (500-15100 KNOT-FT). WIND (20 FT)........LIGHT WINDS. TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY (%).........6 9 14 18 19 21 WEATHER COV..... WIDSPD WIDSPD WEATHER TYPE....NONE NONE NONE NONE FROST FROST TSTM COV........ TEMP............51 44 41 38 35 34 RH..............36 49 55 62 66 69 20 FT WIND......NE 3 E 3 SE 3 S 3 S 3 S 2 20 FT WIND GUST.5 5 5 5 5 EYE LEVEL WIND..NE 2 E 2 SE 2 S 2 S 2 S 1 EYE LVL WND GST.5 5 5 5 5 MIX HGT (FT)....5000 1800 300 300 300 300 MIXNG WIND......NE 3 E 2 SE 2 S 3 SE 3 SE 3 HAINES INDEX....5 5 5 5 5 5 .THURSDAY... SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT) THEN BECOMING MOSTLY CLOUDY (65-75 PERCENT). MAX TEMPERATURE.....AROUND 60. MIN HUMIDITY........36 PERCENT. EYE LEVEL WINDS.....LIGHT WINDS BECOMING SOUTHEAST 14 TO 15 MPH. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2000 FT AGL INCREASING TO 4400 FT AGL IN THE LATE MORNING AND AFTERNOON. MIXING WINDS........SOUTH 3 TO 12 MPH INCREASING TO 13 TO 15 MPH IN THE LATE MORNING AND AFTERNOON. SMOKE DISPERSAL.....POOR TO GOOD (800-46300 KNOT-FT) INCREASING TO GOOD TO GOOD (51300-53300 KNOT-FT) IN THE AFTERNOON. WIND (20 FT)........LIGHT WINDS BECOMING SOUTHEAST 14 TO 15 MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS IN THE AFTERNOON. TIME (CDT) 7 AM 10 AM 1 PM 4 PM SKY (%).........22 33 44 59 WEATHER COV..... S CHC S CHC WEATHER TYPE....NONE NONE RNSHWR RNSHWR TSTM COV........ S CHC S CHC TEMP............32 45 55 60 RH..............78 53 38 36 20 FT WIND......SE 3G5 S 8G10 S 14G20 S 15G20 EYE LEVEL WIND..SE 2G5 S 6G10 S 10G20 S 11G20 MIX HGT (FT)....300 2900 4400 4300 MIXNG WIND......SE 3 S 12 S 14 S 14 HAINES INDEX....5 5 5 4 $$ FORECASTER...SMALL REQUESTED BY...ERIK ACKER TYPE OF REQUEST...PRESCRIBED .TAG 20120411.SHEET.01/DMX