FNUS72 KJAX 181402
FWSJAX

SPOT FORECAST FOR JENNINGS...DOF
NATIONAL WEATHER SERVICE JACKSONVILLE FL
902 AM EST THU FEB 18 2010

FORECAST IS BASED ON IGNITION TIME OF 1000 EST ON FEBRUARY 18.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...RED FLAG WARNING IN EFFECT UNTIL 6 PM EST THIS EVENING...
...FIRE WEATHER WATCH IN EFFECT FROM FRIDAY MORNING THROUGH
FRIDAY AFTERNOON...

.DISCUSSION...
LONG DURATIONS OF CRITICAL RELATIVE HUMIDITIES WILL PROMOTE DANGEROUS
FIRE WEATHER CONDITIONS TODAY. WESTERLY WINDS AROUND 10 TO 15 MPH MAY
GUST UP TO AROUND 25 MPH AT TIMES TODAY.

DRY AIR WILL REMAIN IN PLACE WITH ADDITIONAL RED FLAG EVENTS EXPECTED
ON FRIDAY AND SATURDAY. HUMIDITIES ARE FORECAST TO DROP TO 25 TO 30
PERCENT. WINDS WILL CHECK IN MUCH LIGHTER AS HIGH PRESSURE SLOWLY
BUILDS OVER THE AREA.

.TODAY...

MAX TEMPERATURE.....AROUND 56.
MIN HUMIDITY........27 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING WEST 10 TO 15 MPH WITH
                    GUSTS TO AROUND 25 MPH IN THE AFTERNOON.
MIXING HEIGHT.......500 FT AGL INCREASING TO 2900-3900 FT AGL IN THE AFTERNOON.
MIXING WINDS........NORTHWEST 15 MPH INCREASING TO 20 MPH IN THE AFTERNOON.
DISPERSION INDEX....65.

TIME (EST)      10 AM  NOON   2 PM   4 PM
TEMP............42     51     54     54
RH..............48     33     29     32
20 FT WIND......NW 10  W 14   W 14   W 12
20 FT WIND GUST.15     21     21     18
MIX HGT (FT)....2100   2100   3900   2900
TRANSPORT WIND..NW 17  NW 17  W 20   NW 16

.TONIGHT...

MAX HUMIDITY........80 PERCENT.
WIND (20 FT)........WEST WINDS 10 MPH IN THE EVENING BECOMING LIGHT.
MIXING HEIGHT.......2900 FT AGL DECREASING TO 300-800 FT AGL.
MIXING WINDS........NORTHWEST 15 MPH DECREASING TO 5 TO 10 MPH AFTER MIDNIGHT.
DISPERSION INDEX....2.

TIME (EST)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
RH..............42     57     63     68     71     78
20 FT WIND......W 8    W 5    SW 5   W 3    W 3    NW 3
20 FT WIND GUST.12     7      7      4      4      4
MIX HGT (FT)....2900   800    600    600    300    500
TRANSPORT WIND..NW 16  NW 12  NW 7   NW 7   NW 5   NW 7

.FRIDAY...

MIN HUMIDITY........26 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING WEST 5 TO 10 MPH IN THE AFTERNOON.
MIXING HEIGHT.......500 FT AGL INCREASING TO 3500-3800 FT AGL IN THE AFTERNOON.
MIXING WINDS........NORTHWEST 10 MPH.
DISPERSION INDEX....43.

$$
FORECASTER...HESS
REQUESTED BY...TIM STILTNER
TYPE OF REQUEST...PRESCRIBED
.TAG 20100218.JENNI.01/JAX