FNUS74 KHUN 071106 FWSHUN SPOT FORECAST FOR SLANT ROCK...NATIONAL PARK SERVICE NATIONAL WEATHER SERVICE HUNTSVILLE AL 606 AM CDT WED APR 7 2010 FORECAST IS BASED ON IGNITION TIME OF 0930 CDT ON APRIL 07. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. .DISCUSSION... UNDER PARTLY TO MOSTLY CLOUDY SKIES...GENERALLY DRY AND WARM CONDITIONS ARE EXPECTED ACROSS THE BURN AREA TODAY. LIGHT 20-FOOT WINDS AT DAYBREAK WILL INCREASE TO 10-15 MPH...WITH A FEW GUSTS TO 25 MPH AT IGNITION TIME. RELATIVE HUMIDITIES WILL BE REDUCED TO AROUND 40 PERCENT DURING THE LATE AFTERNOON...WITH GOOD VENTILATION EXPECTED. TONIGHT...A STRONG COLD FRONT APPROACHING FROM THE WEST WILL BRING SHOWERS AND THUNDERSTORMS TO THE BURN AREA MAINLY AFTER MIDNIGHT. SOUTHERLY WINDS OF 8-13 MPH SHOULD CONTINUE THROUGH THE NIGHT. ONE TENTH TO ONE QUARTER OF AN INCH OF RAIN IS EXPECTED TOWARDS DAYBREAK THURSDAY. SHOWER ACTIVITY WILL CONTINUE MAINLY DURING THURSDAY MORNING...WITH RAIN CHANCES DIMINISHING DURING THE AFTERNOON AND EVENING. TOTAL AMOUNTS OF RAIN COULD REACH AN INCH. BETWEEN 9 AM AND 11 AM...WINDS WILL BECOME NORTHWEST AND INCREASE TO 9-15 MPH...WITH SOME GUSTS APPROACHING 30 MPH. .TODAY... SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT). TEMPERATURE.........65 AT IGNITION...MAX 81. MIN HUMIDITY........69 PERCENT AT IGNITION...MIN 40 PERCENT. WIND (20 FT)........WINDS SOUTHWEST AT 10 MPH AT IGNITION...OTHERWISE LIGHT WINDS BECOMING SOUTH 9 TO 13 MPH WITH GUSTS TO AROUND 25 MPH. CWR.................0 PERCENT. LAL.................1. MIXING HEIGHT.......800 FT AGL AT IGNITION...OTHERWISE 400-800 FT AGL INCREASING TO 2800-4100 FT AGL IN THE LATE MORNING AND AFTERNOON. TRANSPORT WINDS.....SOUTH 15 TO 21 MPH. TIME (CDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM SKY (%).........PC PC PC PC PC PC PC PC PC WEATHER COV..... WEATHER TYPE.... TEMP............65 69 72 75 78 79 81 81 80 RH..............69 61 56 52 48 45 42 40 41 20 FT WIND DIR..SW SW SW SW SW S S S S 20 FT WIND SPD..10 10 10 12 12 13 13 13 12 20 FT WIND GUST.20 20 20 25 25 25 25 25 25 MIX HGT (KFT)...0.8 2.8 2.8 2.8 3.9 3.9 3.9 4.1 4.1 TRANSP WIND DIR.S SW SW SW SW SW SW S S TRANSP WIND SPD.15 21 21 21 18 18 18 20 20 DISPERSION IDX..12 64 64 64 50 50 50 55 74 CHC OF PCPN (%).0 0 0 0 10 10 10 10 10 LAL.............1 1 1 1 1 1 1 1 1 .TONIGHT... SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT) THEN BECOMING MOSTLY CLOUDY (75-85 PERCENT). CHANCE OF SHOWERS AND THUNDERSTORMS IN THE EVENING. SHOWERS AND THUNDERSTORMS AFTER MIDNIGHT. MIN TEMPERATURE.....59. MAX HUMIDITY........100 PERCENT. WIND (20 FT)........SOUTH WINDS 9 TO 10 MPH. CWR.................10 PERCENT INCREASING TO 80 PERCENT. LAL.................1 UNTIL 1900...THEN 3 UNTIL 0100...THEN 5. MIXING HEIGHT.......3300-4100 FT AGL DECREASING TO 600-1000 FT AGL IN THE LATE EVENING AND OVERNIGHT. TRANSPORT WINDS.....SOUTH 15 TO 20 MPH. TIME (CDT) 6 PM 8 PM 10 PM MIDNGT 2 AM 4 AM SKY (%).........PCLDY MCLDY MCLDY MCLDY CLOUDY CLOUDY WEATHER COV..... CHANCE CHANCE CHANCE DEFNTE DEFNTE WEATHER TYPE....NONE RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR TEMP............79 73 68 65 62 60 RH..............44 58 77 86 93 98 20 FT WIND......S 10 S 9 S 10 S 10 S 10 S 10 MIX HGT (FT)....4100 3300 900 900 600 1000 TRANSPORT WIND..S 20 S 20 S 16 S 16 S 16 S 15 DISPERSION IDX..74 26 14 14 14 13 CHC OF PCPN (%).10 50 50 50 80 80 LAL.............1 3 3 3 5 5 .THURSDAY... MAX TEMPERATURE.....62. MIN HUMIDITY........54 PERCENT. WIND (20 FT)........SOUTHWEST WINDS 9 TO 14 MPH WITH GUSTS TO AROUND 30 MPH SHIFTING TO THE NORTHWEST 7 TO 15 MPH WITH GUSTS TO AROUND 30 MPH IN THE LATE MORNING AND AFTERNOON. CWR.................90 PERCENT. LAL.................5 UNTIL 1300...THEN 1. TIME (CDT) 6 AM 8 AM 10 AM NOON 2 PM 4 PM TEMP............59 59 60 61 62 62 RH..............100 92 59 54 54 54 20 FT WIND......S 10 SW 14 NW 15 NW 10 NW 8 NW 9 CHC OF PCPN (%).80 90 90 90 40 40 LAL.............5 5 5 5 1 1 $$ FORECASTER...BOYD REQUESTED BY...MARK MENDONCA TYPE OF REQUEST...PRESCRIBED .TAG 20100407.SLANT.01/HUN