FNUS74 KTSA 232131 FWSTSA FIRE WEATHER PLANNING FORECAST FOR VC UNIT...ARKANSAS STATE PARKS NATIONAL WEATHER SERVICE TULSA OK 431 PM CDT WED MAR 23 2011 FORECAST IS BASED ON IGNITION TIME OF 1000 CDT ON MARCH 24. IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... SURFACE HIGH PRESSURE OVER THE CENTRAL PLAINS WILL MAINTAIN NORTH TO NORTHEAST WINDS OVER NORTHWEST ARKANSAS ON THURSDAY. WINDS WILL BE STRONGER DURING THE MORNING HOURS AT 10 TO 20 MPH...SUBSIDING DURING THE AFTERNOON AS THE SURFACE RIDGE GETS CLOSER. THIS HIGH PRESSURE WILL ALSO PUSH COOLER AIR INTO THE REGION...THUS MINIMUM RELATIVE HUMIDITIES WILL ONLY DROP INTO THE MID 40 PERCENT RANGE DURING THE AFTERNOON. RAIN CHANCES WILL NOT ARRIVE UNTIL THURSDAY NIGHT. .THURSDAY... SKY/WEATHER.........SUNNY (15-25 PERCENT). MAX TEMPERATURE.....AROUND 56. MIN HUMIDITY........36 PERCENT. MIXING HEIGHT.......600-2500 FT AGL INCREASING TO 3000-3400 FT AGL EARLY IN THE AFTERNOON. TRANSPORT WINDS.....NORTHEAST 8 TO 14 MPH. WIND (20 FT)........NORTHEAST WINDS AROUND 7 MPH. TIME (CDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM TEMP............38 42 46 50 51 53 55 54 DEWPT...........27 27 27 26 27 28 28 29 RH..............62 54 46 40 39 37 36 39 20FT WIND DIR...N N N N NE NE NE NE 20FT SPD (MPH)..5 5 5 5 5 5 5 5 20FT GUST(MPH)..10 10 10 10 10 10 10 10 CLOUDS (%)......9 9 10 10 14 18 22 26 WEATHER COV..... WEATHER TYPE.... MIXHGT/100(FT)..006 012 019 025 030 033 034 032 TR WIND DIR.....N N N N N NE NE NE TR WIND SPD(MPH)13 14 13 13 12 10 9 8 STABILITY.......C B B B B B C D 1700FT MIX T (F)42 44 47 50 52 54 55 54 VENT/1000(M 3/S)001 002 003 004 005 004 004 003 .THURSDAY NIGHT... SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT) THEN BECOMING MOSTLY CLOUDY (65-75 PERCENT). CHANCE OF SHOWERS AND THUNDERSTORMS. MIN TEMPERATURE.....AROUND 36. MAX HUMIDITY........74 PERCENT. MIXING HEIGHT.......1000-2900 FT AGL DECREASING TO 100-600 FT AGL AFTER MIDNIGHT. TRANSPORT WINDS.....SOUTHEAST 8 TO 15 MPH. WIND (20 FT)........SOUTHEAST WINDS 7 TO 8 MPH. .FRIDAY... SKY/WEATHER.........MOSTLY CLOUDY (80-90 PERCENT). CHANCE OF SHOWERS AND THUNDERSTORMS. MAX TEMPERATURE.....AROUND 61. MIN HUMIDITY........49 PERCENT. MIXING HEIGHT.......100-1700 FT AGL INCREASING TO 2300-3700 FT AGL IN THE AFTERNOON. TRANSPORT WINDS.....SOUTHEAST 15 TO 23 MPH SHIFTING TO THE SOUTHWEST AROUND 14 MPH LATE IN THE AFTERNOON. WIND (20 FT)........SOUTHEAST WINDS 8 TO 13 MPH. TIME (CDT) 6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM TEMP............41 40 43 44 46 50 53 56 58 60 61 61 DEWPT...........33 33 34 36 38 39 41 42 42 42 42 42 RH..............73 74 72 72 71 67 63 59 55 51 50 49 20FT WIND DIR...SE SE SE SE SE SE S S S SE SE E 20FT SPD (MPH)..6 6 6 7 8 8 9 9 9 8 7 6 20FT GUST(MPH)..15 15 15 15 15 20 20 20 20 15 15 15 CLOUDS (%)......89 89 88 88 87 86 85 84 83 82 81 79 WEATHER COV.....CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC CHC WEATHER TYPE....RW RW RW RW RW RW RW RW RW RW RW RW MIXHGT/100(FT)..001 001 004 007 012 017 023 028 031 034 036 037 TR WIND DIR.....SE SE SE SE SE SE S S S S SW SW TR WIND SPD(MPH)15 16 17 20 22 23 25 25 23 20 16 14 STABILITY.......F F E D D C C C B C C D 1700FT MIX T (F)47 46 46 46 47 50 53 56 59 60 61 61 VENT/1000(M 3/S)000 000 001 002 004 005 008 010 010 009 008 007 .FORECAST DAYS 3 THROUGH 5... .SATURDAY... MOSTLY CLOUDY WITH CHANCE OF SHOWERS AND THUNDERSTORMS. LOWS IN THE UPPER 40S. HIGHS IN THE UPPER 50S. EAST WINDS AROUND 9 MPH. .SUNDAY... MOSTLY CLOUDY. LOWS IN THE UPPER 30S. HIGHS IN THE UPPER 50S. NORTHEAST WINDS AROUND 8 MPH. .MONDAY... COOLER. MOSTLY CLOUDY WITH CHANCE OF RAIN. LOWS IN THE MID 30S. HIGHS IN THE MID 40S. EAST WINDS AROUND 9 MPH. $$ FORECASTER...LACY REQUESTED BY...RANGER FRED SUTTON TYPE OF REQUEST...PRESCRIBED .TAG 20110324.VCUNI.01/TSA