FNUS73 KDMX 271332 FWSDMX SPOT FORECAST FOR BISON...USFWS NATIONAL WEATHER SERVICE DES MOINES IA 832 AM CDT TUE APR 27 2010 FORECAST IS BASED ON IGNITION TIME OF 1200 CDT ON APRIL 27. 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... SUNNY SKIES TODAY WITH NORTHEAST WINDS BECOMING LIGHT BY LATE IN THE AFTERNOON. RELATIVE HUMIDITIES WILL DIP INTO THE LOWER TO MID 30S BY THIS AFTERNOON. .TODAY... SKY/WEATHER.........SUNNY (10-20 PERCENT). MAX TEMPERATURE.....AROUND 60. MIN HUMIDITY........34 PERCENT. WIND (EYE LEVEL)....NORTHEAST WINDS 5 TO 7 MPH BECOMING LIGHT. HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......2600 FT AGL INCREASING TO 6800 FT AGL. MIXING WINDS........NORTH 8 TO 15 MPH. SMOKE DISPERSAL.....GOOD (55700 KNOT-FT) INCREASING TO GOOD (67000 KNOT-FT) IN THE AFTERNOON. TIME (CDT) 12P 1PM 2PM 3PM 4PM 5PM 6PM SKY (%).........7 6 7 8 10 12 13 WEATHER COV..... WEATHER TYPE.... TEMP............54 56 57 58 59 58 57 RH..............43 40 38 36 34 34 35 EYE LVL WND DIR.N N N NE NE NE NE EYE LVL WND SPD.6 5 5 5 5 4 2 EYE LVL WND GST.15 10 10 10 10 10 5 MIX HGT (KFT)...5.2 6.0 6.3 6.6 6.8 6.6 6.4 MIXNG WIND DIR..NE N N N N N N MIXNG WIND SPD..13 13 13 12 10 9 8 HAINES INDEX....5 5 5 5 5 5 5 .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT). MIN TEMPERATURE.....AROUND 37. MAX HUMIDITY........82 PERCENT. WIND (EYE LEVEL)....LIGHT WINDS BECOMING SOUTH 5 TO 6 MPH EARLY IN THE MORNING. 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 (%).........14 15 14 13 14 15 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............56 50 47 44 41 40 RH..............35 44 51 57 70 76 EYE LEVEL WIND..NE 2 N 1 NE 1 S 2 S 3 S 5 EYE LEVEL WIND..5 5 5 10 HAINES INDEX....5 5 5 5 5 5 .WEDNESDAY... SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT). MAX TEMPERATURE.....AROUND 68. MIN HUMIDITY........36 PERCENT. WIND (EYE LEVEL)....SOUTH WINDS 6 TO 15 MPH SHIFTING TO THE SOUTHEAST 16 TO 17 MPH LATE IN THE AFTERNOON. HAINES INDEX........6 OR HIGH POTENTIAL FOR LARGE PLUME DOMINATED FIRE GROWTH. MIXING HEIGHT.......1600 FT AGL INCREASING TO 6600 FT AGL. MIXING WINDS........SOUTH 6 TO 15 MPH INCREASING TO 16 TO 25 MPH IN THE AFTERNOON. SMOKE DISPERSAL.....POOR (13400 KNOT-FT) INCREASING TO EXCELLENT (121300 KNOT-FT). TIME (CDT) 7 AM 10 AM 1 PM 4 PM SKY (%).........16 19 21 36 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE TEMP............39 53 62 67 RH..............82 52 41 36 EYE LEVEL WIND..SE 5G10 S 8G15 S 10G25 S 12G25 MIX HGT (FT)....300 2300 6600 5900 MIXNG WIND......SE 6 S 12 S 16 S 20 HAINES INDEX....5 5 6 5 $$ FORECASTER...DONAVON REQUESTED BY...CHAD LORETH TYPE OF REQUEST...PRESCRIBED .TAG 20100427.BISON.01/DMX