FNUS73 KDMX 091514 FWSDMX SPOT FORECAST FOR BIG CREEK WMA...IOWA DNR NATIONAL WEATHER SERVICE DES MOINES IA 1014 AM CDT FRI APR 9 2010 FORECAST IS BASED ON IGNITION TIME OF 1015 CDT ON APRIL 09. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. PLEASE REMEMBER TO SUBMIT A MID BURN OBSERVATION TO THE NATIONAL WEATHER SERVICE FOR EACH PRESCRIBED BURN. .DISCUSSION... HIGH PRESSURE WILL CONTINUE TO PROVIDE SOUTHERLY WINDS THROUGHOUT THE AFTERNOON AND TONIGHT ACROSS THE AREA...WITH THE STRONGEST WINDS EXPECTED THIS AFTERNOON. IN ADDITION...EXPECT SUNNY SKIES AND DRY CONDITIONS TODAY. .TODAY... SKY/WEATHER.........SUNNY (0-10 PERCENT). TEMPERATURE.........55 AT IGNITION...MAX 70. MIN HUMIDITY........46 PERCENT AT IGNITION...MIN 29 PERCENT. WIND (EYE LEVEL)....LIGHT WINDS BECOMING SOUTH 6 TO 10 MPH IN THE LATE MORNING AND AFTERNOON. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......700 FT AGL INCREASING TO 6400 FT AGL. MIXING WINDS........SOUTH 6 TO 15 MPH INCREASING TO 16 TO 20 MPH LATE IN THE AFTERNOON. SMOKE DISPERSAL.....FAIR (43200 KNOT-FT) INCREASING TO GOOD (89500 KNOT-FT) IN THE AFTERNOON. TIME (CDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........7 10 13 14 14 13 12 11 10 WEATHER COV..... WEATHER TYPE.... TEMP............50 55 59 62 65 67 68 68 67 RH..............46 40 36 33 30 28 28 28 29 EYE LVL WND DIR.S S S S S S S S S EYE LVL WND SPD.5 6 6 7 8 8 8 8 7 EYE LVL WND GST. 10 15 15 15 15 15 15 15 MIX HGT (KFT)...0.7 2.6 4.5 6.4 6.4 6.4 6.4 5.7 4.9 MIXNG WIND DIR..S S S S S S S S S MIXNG WIND SPD..8 9 12 13 14 15 16 18 20 HAINES INDEX....5 5 5 5 5 4 4 4 4 .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT). MIN TEMPERATURE.....43. MAX HUMIDITY........70 PERCENT. WIND (EYE LEVEL)....SOUTHWEST WINDS 5 TO 9 MPH UNTIL EARLY MORNING BECOMING LIGHT. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......4200 FT AGL DECREASING TO 1600 FT AGL EARLY IN THE EVENING. MIXING WINDS........SOUTH 12 TO 20 MPH BECOMING WEST 3 TO 8 MPH IN THE LATE EVENING AND OVERNIGHT. SMOKE DISPERSAL.....GOOD (71400 KNOT-FT) DECREASING TO POOR (1800 KNOT-FT) IN THE LATE EVENING AND OVERNIGHT. TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY (%).........10 14 16 16 17 21 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............65 59 55 52 49 47 RH..............31 40 47 54 61 65 EYE LEVEL WIND..S 7 S 6 S 6 SW 5 SW 4 W 3 EYE LEVEL WIND..15 15 10 5 5 MIX HGT (FT)....4200 1600 300 300 300 300 MIXNG WIND......S 20 S 12 S 7 SW 7 SW 6 SW 3 HAINES INDEX....4 5 5 4 4 4 .SATURDAY... SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT). MAX TEMPERATURE.....67. MIN HUMIDITY........40 PERCENT. WIND (EYE LEVEL)....LIGHT WINDS BECOMING NORTHWEST AROUND 5 MPH EARLY IN THE MORNING...THEN SHIFTING TO THE NORTHEAST 6 TO 7 MPH EARLY IN THE MORNING. HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1700 FT AGL INCREASING TO 5600 FT AGL. MIXING WINDS........WEST 3 TO 6 MPH SHIFTING TO THE NORTHEAST 5 TO 9 MPH EARLY IN THE MORNING. SMOKE DISPERSAL.....MARGINAL (33000 KNOT-FT). TIME (CDT) 7 AM 10 AM 1 PM 4 PM SKY (%).........23 32 41 53 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE TEMP............45 54 62 66 RH..............70 54 44 40 EYE LEVEL WIND..NW 3G5 NE 5G10 E 6G10 E 6G10 MIX HGT (FT)....300 1700 3300 5600 MIXNG WIND......W 3 NE 9 NE 6 NE 5 HAINES INDEX....3 3 4 4 $$ FORECASTER...PODRAZIK REQUESTED BY...SAYLORVILLE UNIT TYPE OF REQUEST...PRESCRIBED .TAG 20100409.BIGCR.01/DMX