FNUS73 KDMX 101249 FWSDMX SPOT FORECAST FOR VIRGIN LAKE...IOWA DNR-USFWS NATIONAL WEATHER SERVICE DES MOINES IA 749 AM CDT TUE APR 10 2012 FORECAST IS BASED ON IGNITION TIME OF 1300 CDT ON APRIL 10. 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... THERE WILL BE LITTLE CHANGE IN THE OVERALL WEATHER PATTERN TODAY WITH ELONGATED HIGH PRESSURE FROM CANADA INTO THE MISSOURI RIVER VALLEY. THIS WILL KEEP SUNNY SKIES...LOW HUMIDITIES AND BRISK NORTHWEST WINDS IN PLACE. WINDS TODAY WILL NOT BE QUITE AS STRONG AS MONDAY...BUT MINIMUM AFTERNOON HUMIDITIES WILL STILL DIP TO LESS THAN 20 PERCENT. .TODAY... SKY/WEATHER.........SUNNY (5-15 PERCENT). PATCHY FROST EARLY IN THE MORNING. MAX TEMPERATURE.....AROUND 53. MIN HUMIDITY........19 PERCENT. EYE LEVEL WINDS.....NORTHWEST WINDS 6 TO 15 MPH INCREASING TO 16 TO 18 MPH LATE IN THE MORNING. HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1500 FT AGL INCREASING TO 5900 FT AGL. MIXING WINDS........NORTHWEST 6 TO 10 MPH INCREASING TO 17 TO 23 MPH EARLY IN THE MORNING. SMOKE DISPERSAL.....POOR TO GOOD (1300-39000 KNOT-FT) INCREASING TO EXCELLENT TO EXCELLENT (74100-118300 KNOT-FT) IN THE LATE MORNING AND AFTERNOON. WIND (20 FT)........NORTHWEST WINDS 6 TO 15 MPH INCREASING TO 16 TO 18 MPH LATE IN THE MORNING. TIME (CDT) 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........8 8 8 9 9 9 WEATHER COV..... WEATHER TYPE.... TSTM COV........ TEMP............48 49 51 52 51 49 RH..............25 23 20 19 20 23 20 FT WIND DIR..NW NW NW NW NW N 20 FT WIND SPD..16 17 17 18 18 18 20 FT WIND GUST.25 25 25 25 25 25 EYE LVL WND DIR.NW NW NW NW NW N EYE LVL WND SPD.11 12 12 13 13 13 EYE LVL WND GST.25 25 25 25 25 25 MIX HGT (KFT)...5.2 5.4 5.7 5.9 5.6 5.4 MIXNG WIND DIR..NW NW NW NW NW N MIXNG WIND SPD..23 23 23 23 23 23 HAINES INDEX....6 6 6 6 6 6 .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR (0-10 PERCENT). AREAS OF FROST EARLY IN THE MORNING. MIN TEMPERATURE.....AROUND 21. MAX HUMIDITY........74 PERCENT. EYE LEVEL WINDS.....NORTH WINDS 9 TO 18 MPH DECREASING TO 6 TO 8 MPH IN THE LATE EVENING AND OVERNIGHT. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......5100 FT AGL DECREASING TO 1900 FT AGL EARLY IN THE EVENING. MIXING WINDS........NORTH 13 TO 22 MPH DECREASING TO 7 TO 10 MPH AFTER MIDNIGHT. SMOKE DISPERSAL.....GOOD TO EXCELLENT (32300-97100 KNOT-FT) DECREASING TO POOR TO POOR (1500-4500 KNOT-FT) IN THE LATE EVENING AND OVERNIGHT. WIND (20 FT)........NORTH WINDS 9 TO 18 MPH DECREASING TO 6 TO 8 MPH IN THE LATE EVENING AND OVERNIGHT. TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY (%).........9 7 5 3 5 8 WEATHER COV..... AREAS WEATHER TYPE....NONE NONE NONE NONE NONE FROST TSTM COV........ TEMP............48 39 35 31 28 26 RH..............25 37 45 56 63 65 20 FT WIND......N 18 N 13 N 8 N 7 N 7 N 7 20 FT WIND GUST.25 15 10 EYE LEVEL WIND..N 13 N 9 N 6 N 5 N 5 N 5 EYE LVL WND GST.25 15 10 MIX HGT (FT)....5100 1900 300 400 300 300 MIXNG WIND......N 22 N 20 N 16 N 13 N 8 N 7 HAINES INDEX....5 5 5 5 5 5 .WEDNESDAY... SKY/WEATHER.........SUNNY (5-15 PERCENT). AREAS OF FROST EARLY IN THE MORNING. MAX TEMPERATURE.....AROUND 53. MIN HUMIDITY........26 PERCENT. EYE LEVEL WINDS.....EAST WINDS 5 TO 9 MPH. HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2200 FT AGL INCREASING TO 4400 FT AGL IN THE LATE MORNING AND AFTERNOON. MIXING WINDS........EAST 3 TO 9 MPH. SMOKE DISPERSAL.....POOR TO FAIR (1800-19100 KNOT-FT). WIND (20 FT)........EAST WINDS 5 TO 9 MPH. TIME (CDT) 7 AM 10 AM 1 PM 4 PM SKY (%).........10 12 13 12 WEATHER COV.....AREAS WEATHER TYPE....FROST NONE NONE NONE TSTM COV........ TEMP............23 36 46 52 RH..............74 45 31 26 20 FT WIND......N 6 N 9G10 N 5 E 6 EYE LEVEL WIND..N 4G5 N 6G10 N 4G5 E 4G5 MIX HGT (FT)....300 2200 3600 4400 MIXNG WIND......NE 8 N 9 N 6 N 5 HAINES INDEX....4 4 5 6 $$ FORECASTER...SMALL REQUESTED BY...STEVE WOODRUFF TYPE OF REQUEST...PRESCRIBED .TAG 20120410.VIRGI.01/DMX