FNUS72 KJAX 151400 FWSJAX SPOT FORECAST FOR MANNING 129 AC RX BURN...FL. DIVISION OF FORESTRY NATIONAL WEATHER SERVICE JACKSONVILLE FL 900 AM EST THU JAN 15 2009 FORECAST IS BASED ON IGNITION TIME OF 1000 EST ON JANUARY 16. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. ...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 6 PM EST THIS AFTERNOON FOR LOW RELATIVE HUMIDITY... ...FIRE WEATHER WATCH IN EFFECT FROM FRIDAY MORNING THROUGH FRIDAY AFTERNOON FOR LOW RELATIVE HUMIDITY... .DISCUSSION...AN ARCTIC COLD FRONT WILL MOVE THROUGH THE AREA THIS AFTERNOON AND EVENING AND USHER IN A COLDER AND DRIER AIRMASS. GUSTY NORTHERLY WINDS WILL BECOME 10 TO 15 MPH DURING THE AFTERNOON AND RH VALUES WILL DROP TO CRITICAL VALUES ON FRIDAY...AN AREA OF HIGH PRESSURE OVER THE TENNESSEE VALLEY WILL MOVE EAST WITH A DRY AND COLD AIRMASS CONTINUING. LOWER RH VALUES ARE ANTICIPATED AND NORTHERLY WINDS WILL BE NEAR 15 MPH OVER PORTIONS OF NORTHEAST FLORIDA. MIN RH VALUES WILL LIKELY PLUMMET INTO THE LOWER TO MID 20S. CONTINUED EXTREMELY DRY CONDITIONS ARE EXPECTED FOR SATURDAY. SLIGHTLY MORE MOIST CONDITIONS ARE EXPECTED ON SUNDAY BEFORE ANOTHER FRONT BRINGS A CHANCE FOR RED FLAGS EARLY NEXT WEEK. .FRIDAY... SKY/WEATHER.........SUNNY (15-25 PERCENT). MAX TEMPERATURE.....AROUND 49. MIN HUMIDITY........29 PERCENT. WIND (20 FT)........NORTH WINDS 9 TO 14 MPH. GUSTS UP TO 25 MPH IN THE MORNING. MIXING HEIGHT.......1100-2700 FT AGL. MIXING WINDS........NORTH 16 TO 23 MPH. DISPERSION INDEX....50. TIME (EST) 6 AM 8 AM 10 AM NOON 2 PM 4 PM SKY (%).........25 23 18 18 20 20 WEATHER COV..... WEATHER TYPE....NONE NONE NONE NONE NONE NONE TEMP............31 30 38 45 48 47 RH..............62 58 41 33 31 31 20 FT WIND......N 13 N 13 N 13 N 14 N 13 N 12 20 FT WIND GUST.25 25 20 20 15 15 MIX HGT (FT)....1100 1500 2000 2000 2600 2700 TRANSPORT WIND..N 23 N 23 N 21 N 21 N 17 N 16 $$ FORECASTER...TRABERT REQUESTED BY...SCOTT CROSBY TYPE OF REQUEST...PRESCRIBED .TAG 20090115.MANNI.01/JAX