FNUS74 KTSA 081043 FWSTSA FIRE WEATHER PLANNING FORECAST FOR ROSSONSPIRIT...USDA FOREST SERVICE NATIONAL WEATHER SERVICE TULSA OK 543 AM CDT WED APR 8 2009 FORECAST IS BASED ON IGNITION TIME OF 1300 CDT ON APRIL 08. IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... A DRY LINE WILL MOVE INTO THE REGION TOMORROW AFTERNOON. AREAS ACROSS EASTERN OKLAHOMA THAT SEE PASSAGE OF THIS FEATURE WILL ALSO SEE RAPIDLY DETERIORATING FIRE WEATHER CONDITIONS AS WINDS GUST TO NEAR 30 MPH AND RELATIVE HUMIDITIES QUICKLY FALL TOWARDS 20 PERCENT. A FIRE WEATHER WATCH HAS BEEN ISSUED FOR PARTS OF EASTERN OKLAHOMA FOR TOMORROW. SEE /OKCRFWTSA/ FOR DETAILS. .TODAY... SKY/WEATHER.........SUNNY (0-10 PERCENT). MAX TEMPERATURE.....AROUND 70. MIN HUMIDITY........18 PERCENT. MIXING HEIGHT.......0-1700 FT AGL INCREASING TO 4500-5300 FT AGL. TRANSPORT WINDS.....NORTH AROUND 8 MPH SHIFTING TO THE WEST. WIND (20 FT)........NORTHWEST WINDS 6 TO 7 MPH EARLY IN THE MORNING BECOMING LIGHT...THEN BECOMING WEST AROUND 5 MPH LATE IN THE MORNING BECOMING LIGHT BECOMING SOUTHEAST AROUND 5 MPH LATE IN THE AFTERNOON. TIME (CDT) 1PM 2PM 3PM 4PM 5PM TEMP............64 67 69 70 70 DEWPT...........25 25 25 24 25 RH..............23 20 19 18 18 20FT WIND DIR...NW W S SE SE 20FT SPD (MPH)..4 4 3 2 4 20FT GUST(MPH)..5 5 5 10 10 CLOUDS (%)......8 9 10 11 12 WEATHER COV..... WEATHER TYPE.... MIXHGT/100(FT)..045 050 053 053 047 TR WIND DIR.....W W W W W TR WIND SPD(MPH)8 7 5 3 3 STABILITY.......B B B B C 1700FT MIX T (F)M M M M M VENT/1000(M 3/S)005 005 004 002 002 .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY (20-30 PERCENT) THEN BECOMING MOSTLY CLOUDY (55-65 PERCENT). MIN TEMPERATURE.....AROUND 48. MAX HUMIDITY........83 PERCENT. MIXING HEIGHT.......2400-3700 FT AGL DECREASING TO 0-1200 FT AGL EARLY IN THE EVENING. TRANSPORT WINDS.....SOUTHEAST 5 TO 14 MPH. WIND (20 FT)........SOUTHEAST WINDS 6 TO 13 MPH. .THURSDAY... SKY/WEATHER.........MOSTLY CLOUDY (75-85 PERCENT). CHANCE OF SHOWERS AND THUNDERSTORMS IN THE AFTERNOON. MAX TEMPERATURE.....AROUND 76. MIN HUMIDITY........53 PERCENT. MIXING HEIGHT.......0-1600 FT AGL INCREASING TO 5300-6800 FT AGL. TRANSPORT WINDS.....SOUTHEAST 15 TO 23 MPH SHIFTING TO THE SOUTH 25 TO 32 MPH LATE IN THE MORNING. WIND (20 FT)........SOUTHEAST WINDS 11 TO 16 MPH. TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM TEMP............48 48 49 54 59 63 67 70 73 74 76 76 DEWPT...........42 42 44 46 48 50 52 53 55 56 57 59 RH..............79 81 83 75 67 62 58 55 53 53 53 55 20FT WIND DIR...SE SE SE SE SE SE SE SE SE SE SE SE 20FT SPD (MPH)..10 11 11 11 11 12 12 13 12 11 10 9 20FT GUST(MPH)..20 20 20 25 25 25 25 25 25 25 25 25 CLOUDS (%)......82 92 89 85 82 78 75 71 74 76 78 81 WEATHER COV..... SCH SCH SCH SCH SCH SCH CHC CHC CHC CHC CHC WEATHER TYPE.... RW RW RW RW RW RW RW RW RW RW RW MIXHGT/100(FT)..000 000 008 016 025 035 043 053 061 067 068 060 TR WIND DIR.....SE SE SE SE SE S S S S S S S TR WIND SPD(MPH)15 17 18 21 23 25 28 30 31 32 31 29 STABILITY.......F F D D C C B C B B C C 1700FT MIX T (F)M M M M M M M M M M M M VENT/1000(M 3/S)000 000 002 005 008 012 016 022 026 029 029 024 .FORECAST DAYS 3 THROUGH 5... .FRIDAY... MUCH COOLER. MOSTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE MID 40S. HIGHS IN THE MID 50S. WEST WINDS AROUND 11 MPH. .SATURDAY... WARMER. MOSTLY CLEAR. LOWS IN THE UPPER 30S. HIGHS IN THE UPPER 60S. NORTHEAST WINDS AROUND 8 MPH. .SUNDAY... COOLER. MOSTLY CLOUDY WITH SHOWERS AND THUNDERSTORMS LIKELY. LOWS IN THE MID 40S. HIGHS IN THE UPPER 50S. EAST WINDS AROUND 9 MPH. $$ FORECASTER...HAAKE REQUESTED BY...FRANK T PALMER TYPE OF REQUEST...PRESCRIBED .TAG 20090408.ROSSO.01/TSA