FNUS73 KDMX 110906 FWSDMX SPOT FORECAST FOR BISON NORTH...USFWS NEAL SMITH NATIONAL WEATHER SERVICE DES MOINES IA 406 AM CDT WED APR 11 2012 FORECAST IS BASED ON IGNITION TIME OF 1000 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. .TODAY... SKY/WEATHER.........SUNNY (0-10 PERCENT). AREAS OF FROST EARLY IN THE MORNING. MAX TEMPERATURE.....AROUND 57. MIN HUMIDITY........22 PERCENT. EYE LEVEL WINDS.....LIGHT WINDS BECOMING NORTHEAST 5 TO 7 MPH...THEN BECOMING LIGHT LATE IN THE AFTERNOON. HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1300 FT AGL INCREASING TO 6000 FT AGL. MIXING WINDS........NORTHEAST 3 TO 12 MPH. SMOKE DISPERSAL.....POOR TO GOOD (1300-36500 KNOT-FT). WIND (20 FT)........LIGHT WINDS BECOMING NORTHEAST 5 TO 7 MPH...THEN BECOMING LIGHT LATE IN THE AFTERNOON. TIME (CDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........6 6 6 6 6 7 8 8 8 WEATHER COV..... WEATHER TYPE.... TSTM COV........ TEMP............41 45 48 51 53 55 56 55 54 RH..............33 31 29 28 26 23 22 25 27 20 FT WIND DIR..N N N N N N N NE NE 20 FT WIND SPD..7 7 6 5 5 5 5 5 3 20 FT WIND GUST. 5 EYE LVL WND DIR.N N N N N N N NE NE EYE LVL WND SPD.5 5 4 4 4 4 4 4 2 EYE LVL WND GST. 5 MIX HGT (KFT)...3.4 3.9 4.5 5.0 5.3 5.7 6.0 5.7 5.4 MIXNG WIND DIR..NE NE N N N N N NE NE MIXNG WIND SPD..12 10 9 7 6 5 5 5 3 HAINES INDEX....5 5 5 5 6 6 6 5 5 .THURSDAY... SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT) THEN BECOMING MOSTLY CLOUDY (75-85 PERCENT). CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. MAX TEMPERATURE.....AROUND 60. MIN HUMIDITY........40 PERCENT. EYE LEVEL WINDS.....SOUTH WINDS 5 TO 14 MPH SHIFTING TO THE SOUTHEAST AROUND 15 MPH EARLY IN THE AFTERNOON. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2100 FT AGL INCREASING TO 3700 FT AGL IN THE LATE MORNING AND AFTERNOON. MIXING WINDS........SOUTH 5 TO 14 MPH SHIFTING TO THE SOUTHEAST 16 TO 20 MPH IN THE LATE MORNING AND AFTERNOON. SMOKE DISPERSAL.....POOR TO GOOD (1000-56500 KNOT-FT) INCREASING TO GOOD TO GOOD (56500-59200 KNOT-FT) LATE IN THE AFTERNOON. WIND (20 FT)........SOUTH WINDS 5 TO 14 MPH SHIFTING TO THE SOUTHEAST AROUND 15 MPH EARLY IN THE AFTERNOON. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS IN THE AFTERNOON. TIME (CDT) 7 AM 10 AM 1 PM 4 PM SKY (%).........25 44 62 77 WEATHER COV..... CHANCE CHANCE WEATHER TYPE....NONE NONE RNSHWR RNSHWR TSTM COV........ CHANCE CHANCE TEMP............35 46 54 59 RH..............69 53 41 40 20 FT WIND......SE 5 S 9G10 S 14G20 SE 15G20 EYE LEVEL WIND..SE 4G5 S 6G10 S 10G20 SE 11G20 MIX HGT (FT)....300 2100 3300 3700 MIXNG WIND......SE 5 S 14 S 17 S 18 HAINES INDEX....5 5 2 2 $$ FORECASTER...SMALL REQUESTED BY...JIM KRIZMAN TYPE OF REQUEST...PRESCRIBED .TAG 20120411.BISON.01/DMX