FNUS72 KJAX 050943 FWSJAX SPOT FORECAST FOR 4-CREEKS...DOF NATIONAL WEATHER SERVICE JACKSONVILLE FL 443 AM EST THU FEB 5 2009 FORECAST IS BASED ON IGNITION TIME OF 0730 EST ON FEBRUARY 05. IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER SERVICE. ...RED FLAG WARNING IN EFFECT FROM 10 AM THIS MORNING TO 7 PM EST THIS EVENING DUE TO LOW RELATIVE HUMIDITY... ...RED FLAG WARNING IN EFFECT FROM 11 AM TO 7 PM EST FRIDAY DUE TO LOW RELATIVE HUMIDITY... .DISCUSSION...A CRITICALLY DRY AIRMASS WILL REMAIN OVER THE REGION THROUGH FRIDAY. MINIMUM RELATIVE HUMIDITY WILL BE NEAR 20 PERCENT. WINDS WILL BE MAINLY LESS THAN 15 MPH BUT GUSTS TO NEAR 20 MPH CAN BE EXPECTED. .FRIDAY... SKY/WEATHER.........SUNNY (0-5 PERCENT). PATCHY FROST EARLY IN THE MORNING. MAX TEMPERATURE.....AROUND 60. MIN HUMIDITY........19 PERCENT. WIND (20 FT)........LIGHT WINDS BECOMING SOUTHEAST 5 TO 7 MPH IN THE AFTERNOON. MIXING HEIGHT.......300-1500 FT AGL INCREASING TO 1800-2700 FT AGL IN THE AFTERNOON. MIXING WINDS........NORTH 2 TO 3 MPH SHIFTING TO THE WEST AROUND 5 MPH LATE IN THE MORNING...THEN SHIFTING TO THE SOUTH AROUND 6 MPH IN THE AFTERNOON. DISPERSION INDEX....19. $$ FORECASTER...TRABERT REQUESTED BY...JON TYPE OF REQUEST...PRESCRIBED .TAG 20090205.4CREE.01/JAX