FNUS73 KDMX 211202 FWSDMX SPOT FORECAST FOR TOMAHAWK...USFWS NATIONAL WEATHER SERVICE DES MOINES IA 702 AM CDT WED APR 21 2010 FORECAST IS BASED ON IGNITION TIME OF 0725 CDT ON APRIL 21. 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... A WEAK BOUNDARY WILL DRIFT SOUTHWARD TODAY BRINGING A WIND SHIFT TO THE NORTH NORTHWEST DURING THE MORNING HOURS. SURFACE WINDS LOOK TO RANGE AROUND 5 MPH. .TODAY... SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT). TEMPERATURE.........51 AT IGNITION...MAX 71. MIN HUMIDITY........71 PERCENT AT IGNITION...MIN 31 PERCENT. WIND (EYE LEVEL)....NORTHWEST WINDS 5 TO 6 MPH IN THE MORNING BECOMING LIGHT...THEN BECOMING NORTHWEST AROUND 5 MPH EARLY IN THE AFTERNOON BECOMING LIGHT. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2000 FT AGL INCREASING TO 11400 FT AGL. MIXING WINDS........NORTHWEST 3 TO 10 MPH. SMOKE DISPERSAL.....MARGINAL (34300 KNOT-FT). TIME (CDT) 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........56 55 53 51 49 47 46 45 43 42 40 38 WEATHER COV..... WEATHER TYPE.... TEMP............48 51 55 58 61 64 66 68 69 70 69 68 RH..............71 63 55 51 46 41 38 34 33 31 31 32 EYE LVL WND DIR.W W NW NW NW NW NW NW NW NW NW NW EYE LVL WND SPD.5 5 4 4 4 3 3 3 4 4 4 3 EYE LVL WND GST. 5 5 5 5 5 5 5 5 5 5 MIX HGT (KFT)...0.3 0.8 1.4 2.0 4.2 6.4 8.6 9.6 11 11 11 9.7 MIXNG WIND DIR..W W W W W NW NW NW W W W NW MIXNG WIND SPD..7 8 9 10 8 6 3 3 3 3 3 3 HAINES INDEX....4 4 5 5 5 5 5 5 5 5 5 5 .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY (20-30 PERCENT). MIN TEMPERATURE.....45. MAX HUMIDITY........83 PERCENT. WIND (EYE LEVEL)....LIGHT WINDS BECOMING NORTH AROUND 5 MPH IN THE LATE EVENING AND EARLY MORNING...THEN BECOMING LIGHT AFTER MIDNIGHT. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. TIME (CDT) 7 PM 9 PM 11 PM 1 AM 3 AM 5 AM SKY (%).........38 31 23 16 17 18 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............67 60 56 53 50 48 RH..............32 42 53 61 71 77 EYE LEVEL WIND..NW 2 N 3 N 4 NE 4 N 3 NE 3 EYE LEVEL WIND..5 5 5 5 5 5 HAINES INDEX....5 5 5 4 4 4 .THURSDAY... SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT). MAX TEMPERATURE.....73. MIN HUMIDITY........31 PERCENT. WIND (EYE LEVEL)....LIGHT WINDS BECOMING SOUTHEAST 5 TO 9 MPH IN THE LATE MORNING AND AFTERNOON. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1900 FT AGL INCREASING TO 8600 FT AGL. MIXING WINDS........NORTHEAST 2 TO 3 MPH SHIFTING TO THE SOUTH 1 TO 9 MPH EARLY IN THE MORNING. SMOKE DISPERSAL.....FAIR (49000 KNOT-FT) INCREASING TO GOOD (61800 KNOT-FT) LATE IN THE AFTERNOON. TIME (CDT) 7 AM 10 AM 1 PM 4 PM SKY (%).........17 23 33 44 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE TEMP............47 59 68 72 RH..............83 51 36 31 EYE LEVEL WIND..NE 3G5 E 3G5 SE 6G15 SE 7G15 MIX HGT (FT)....400 1900 8300 8600 MIXNG WIND......NE 3 SW 1 S 6 S 7 HAINES INDEX....4 4 4 5 $$ FORECASTER...PODRAZIK REQUESTED BY...BLAKE KNISLEY TYPE OF REQUEST...PRESCRIBED .TAG 20100421.TOMAH.01/DMX