FNUS72 KJAX 172107 FWSJAX SPOT FORECAST FOR MUD PRAIRIE...USDA - FOREST SERVICE NATIONAL WEATHER SERVICE JACKSONVILLE FL 407 PM EST WED FEB 17 2010 FORECAST IS BASED ON IGNITION TIME OF 1600 EST ON FEBRUARY 17. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. ...RED FLAG WARNING IN EFFECT UNTIL 5 PM EST THIS AFTERNOON... ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 6 PM EST THURSDAY... ...FIRE WEATHER WATCH IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY AFTERNOON... .DISCUSSION...SUSTAINED WESTERLY WINDS OF 15 TO 20 MPH WITH GUSTS BETWEEN 25 AND 30 MPH COMBINED WITH CRITICAL RELATIVE HUMIDITIES WILL CONTINUE TO PROMOTE DANGEROUS FIRE WEATHER CONDITIONS THROUGH THE REST OF THIS AFTERNOON. DRY AIR WILL REMAIN IN PLACE THROUGH THE END OF THE WEEK. THE LOWEST HUMIDITIES OF THE WEEK WILL COME ON THURSDAY WHEN MINIMUM VALUES ARE FORECAST TO DROP TO 20 TO 25 PERCENT. A RED FLAG WARNING HAS BEEN ISSUED FOR NORTHEAST FLORIDA FOR THURSDAY. A FIRE WEATHER WATCH HAS BEEN ISSUED FOR FRIDAY FOR PORTIONS OF INTERIOR NORTHEAST FLORIDA WHERE HUMIDITY VALUES MAY DROP BELOW 30 PERCENT. .TONIGHT... SKY/WEATHER.........MOSTLY CLEAR (0-10 PERCENT). PATCHY FROST AFTER MIDNIGHT. MIN TEMPERATURE.....AROUND 32. MAX HUMIDITY........77 PERCENT. WIND (20 FT)........NORTHWEST WINDS 6 TO 13 MPH. MIXING HEIGHT.......4400 FT AGL DECREASING TO 300-1700 FT AGL. MIXING WINDS........NORTHWEST 15 TO 24 MPH DECREASING TO AROUND 13 MPH AFTER MIDNIGHT. DISPERSION INDEX....6. TIME (EST) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM SKY (%).........3 3 3 3 3 3 3 8 8 8 11 11 WEATHER COV..... PTY PTY PTY PTY PTY WEATHER TYPE.... FST FST FST FST FST TEMP............51 45 42 41 40 39 38 37 36 35 35 34 RH..............39 53 59 63 66 69 72 75 75 74 74 73 20 FT WIND DIR..W W W W W W NW NW NW NW NW NW 20 FT WIND SPD..13 9 8 7 6 6 5 5 5 3 3 3 20 FT WIND GUST.15 15 15 15 10 10 10 10 10 10 MIX HGT (KFT)...4.4 1.9 1.7 1.7 1.0 1.0 1.0 0.3 0.3 0.3 0.5 0.5 TRANSP WIND DIR.W W W W NW NW NW NW NW NW NW NW TRANSP WIND SPD.24 17 17 17 15 15 15 13 13 13 13 13 .THURSDAY... SKY/WEATHER.........SUNNY (15-25 PERCENT). PATCHY FROST EARLY IN THE MORNING. MAX TEMPERATURE.....AROUND 59. MIN HUMIDITY........20 PERCENT. WIND (20 FT)........WEST WINDS 5 TO 13 MPH. GUSTS UP TO 25 MPH IN THE LATE MORNING AND AFTERNOON. MIXING HEIGHT.......500-2100 FT AGL INCREASING TO NEAR 3400 FT AGL IN THE AFTERNOON. MIXING WINDS........WEST 13 TO 21 MPH. DISPERSION INDEX....72. TIME (EST) 6 AM 8 AM 10 AM NOON 2 PM 4 PM SKY (%).........11 19 19 19 33 33 WEATHER COV.....PATCHY WEATHER TYPE....FROST NONE NONE NONE NONE NONE TEMP............34 35 46 54 57 57 RH..............72 62 37 25 22 24 20 FT WIND......NW 3 NW 6 NW 8 W 10 W 12 W 10 20 FT WIND GUST.10 15 20 25 25 20 MIX HGT (FT)....500 700 2100 2100 3400 2600 TRANSPORT WIND..NW 13 NW 14 NW 18 NW 18 NW 21 W 18 $$ FORECASTER...SHASHY REQUESTED BY...TAMMY MILTON TYPE OF REQUEST...PRESCRIBED .TAG 20100217.MUDPR.02/JAX