FNUS74 KOUN 221519 FWSOUN SPOT FORECAST FOR ARBUCKLE DAM...NPS NATIONAL WEATHER SERVICE NORMAN OK 1019 AM CDT THU APR 22 2010 FORECAST IS BASED ON IGNITION TIME OF 1120 CDT ON APRIL 22. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... WARM... HUMID AND BREEZY CONDITIONS EXPECTED THIS AFTERNOON. THERE WILL BE VERY LOW CHANCE OF AN AFTERNOON SHOWER OR THUNDERSTORM. THERE WILL BE A BETTER CHANCE OF SHOWERS AND THUNDERSTORMS LATE TONIGHT INTO EARLY FRIDAY MORNING AS A LINE OF STORMS IS EXPECTED TO MOVE WEST TO EAST ACROSS THE AREA. SOUTH TO SOUTHWEST WINDS WILL DEVELOP DURING THE DAY ON FRIDAY AND COULD BECOME QUITE STRONG FROM LATE MORNING INTO THE MIDDLE PART OF THE AFTERNOON HOURS. AFTERNOON RELATIVE HUMIDITIES WILL ALSO DROP LOWER AS DRIER AIR WORKS INTO THE AREA. .TODAY... SKY/WEATHER.........SUNNY (10-20 PERCENT) THEN BECOMING PARTLY SUNNY (55-65 PERCENT). SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS. MAX TEMPERATURE.....73 AT IGNITION...MAX 76. MIN HUMIDITY........73 PERCENT AT IGNITION...MIN 62 PERCENT. WIND (20 FT)........WINDS SOUTH AT 12 MPH AT IGNITION...OTHERWISE SOUTH WINDS 7 TO 15 MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS. MIXING HEIGHT.......400-2000 FT AGL INCREASING TO 3200 FT AGL AT IGNITION...OTHERWISE 2600-3900 FT AGL IN THE LATE MORNING AND AFTERNOON. TRANSPORT WINDS.....SOUTH 8 TO 17 MPH INCREASING TO 20 TO 26 MPH IN THE LATE MORNING AND AFTERNOON. TIME (CDT) 11 AM 1 PM 3 PM 5 PM 7 PM 9 PM SKY (%).........MCLEAR MCLDY MCLDY MCLDY CLOUDY CLOUDY WEATHER COV.....S CHC S CHC S CHC S CHC CHANCE CHANCE WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR TEMP............71 74 75 76 75 70 RH..............73 69 64 62 66 76 20 FT WIND......S 13 S 15 S 15 S 15 S 13 SE 10 20 FT WIND GUST.20 20 20 20 20 15 MIX HGT (FT)....2600 3600 3700 3800 3700 1400 MIX HGT (M).....790 1100 1130 1160 1130 430 TRANSPORT WIND..S 20 S 23 S 25 S 26 S 25 S 17 TRAN WIND (M/S).S 9 S 10 S 11 S 12 S 11 S 8 .TONIGHT... SKY/WEATHER.........CLOUDY (95-100 PERCENT). CHANCE OF SHOWERS AND THUNDERSTORMS. MIN TEMPERATURE.....MIN 63. MAX HUMIDITY........MAX 93 PERCENT. WIND (20 FT)........SOUTH WINDS 9 TO 15 MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS. MIXING HEIGHT.......2700-3700 FT AGL DECREASING TO 400-2000 FT AGL EARLY IN THE EVENING. TRANSPORT WINDS.....SOUTH 17 TO 25 MPH INCREASING TO 24 TO 25 MPH EARLY IN THE MORNING. .FRIDAY... SKY/WEATHER.........PARTLY SUNNY (60-70 PERCENT). CHANCE OF SHOWERS AND THUNDERSTORMS IN THE MORNING. MAX TEMPERATURE.....MAX 79. MIN HUMIDITY........MIN 37 PERCENT. WIND (20 FT)........SOUTHWEST WINDS 8 TO 15 MPH. GUSTY AND ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS IN THE MORNING. MIXING HEIGHT.......1200-2900 FT AGL INCREASING TO 6400-7000 FT AGL. TRANSPORT WINDS.....SOUTHWEST 16 TO 24 MPH INCREASING TO 26 TO 28 MPH LATE IN THE AFTERNOON. .FORECAST DAYS 3 THROUGH 5... .SATURDAY... PARTLY CLOUDY. CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE LOWER 50S. HIGHS IN THE MID 70S. SOUTHWEST WINDS AROUND 9 MPH. .SUNDAY... PARTLY CLOUDY. LOWS IN THE LOWER 50S. HIGHS IN THE LOWER 70S. NORTHWEST WINDS AROUND 10 MPH. .MONDAY... PARTLY CLOUDY. LOWS IN THE UPPER 40S. HIGHS IN THE LOWER 70S. NORTH WINDS AROUND 7 MPH. $$ FORECASTER...CURL REQUESTED BY...TRAVIS JONES TYPE OF REQUEST...PRESCRIBED .TAG 20100422.ARBUC.01/OUN