FNUS72 KJAX 091222
FWSJAX

SPOT FORECAST FOR PRESCRIBED BURN...DOF
NATIONAL WEATHER SERVICE JACKSONVILLE FL
822 AM EDT THU APR 9 2009

FORECAST IS BASED ON IGNITION TIME OF 0900 EDT ON APRIL 09.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...RED FLAG WARNING IN EFFECT FROM 1 PM THIS AFTERNOON TO 7 PM
EDT THIS EVENING...

.DISCUSSION...A HIGH PRESSURE RIDGE OVER SOUTH FLORIDA AND THE WESTERN
ATLANTIC WILL SHIFT EAST. MOISTURE WILL GRADUALLY INCREASE TODAY BUT
TEMPERATURES WILL BE MUCH WARMER...AND LONG DURATIONS OF LOW RELATIVE
HUMIDITIES ARE LIKELY FOR PORTIONS OF INLAND NORTHEAST FLORIDA.
HUMIDITY VALUES ARE EXPECTED TO BE ABOVE CRITICAL VALUES BY FRIDAY.
WINDS TODAY WILL BE MOSTLY BELOW 15 MPH. STRONGER SOUTHERLY WINDS
ARE ANTICIPATED ON FRIDAY WITH SUSTAINED WINDS OF 15 TO 20 MPH ALONG
WITH HIGHER GUSTS. DISPERSION LEVELS WILL ALSO BE HIGH ON FRIDAY...
WITH INDICES OF ABOUT 70 TO 80 POSSIBLE NORTHEAST FLORIDA.

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT).
MAX TEMPERATURE.....AROUND 80.
MIN HUMIDITY........30 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHWEST 5 TO 8 MPH LATE
                    IN THE MORNING.
LAL.................1.
MIXING HEIGHT.......700-1000 FT AGL INCREASING TO NEAR 4800 FT AGL
                    IN THE EARLY AFTERNOON.
MIXING WINDS........SOUTHWEST 7 TO 14 MPH.
DISPERSION INDEX....35.
CHANCE OF PCPN......0 PERCENT.

TIME (EDT)      9 AM   11 AM  1 PM   3 PM   5 PM
SKY (%).........35     26     26     42     45
WEATHER COV.....
WEATHER TYPE....NONE   NONE   NONE   NONE   NONE
TEMP............58     70     76     79     78
RH..............71     45     37     32     34
20 FT WIND......SW 4   SW 6   SW 7   SW 8   SW 8
20 FT WIND GUST.10     15     15     15     15
MIX HGT (FT)....1000   2900   2900   4700   4800
TRANSPORT WIND..W 14   W 14   W 14   W 7    SW 13
CHC OF PCPN (%).0      0      0      0      0
LAL.............1      1      1      1      1

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY (40-50 PERCENT).
MIN TEMPERATURE.....AROUND 54.
MAX HUMIDITY........97 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 5 TO 7 MPH IN THE EVENING
                    BECOMING LIGHT.
LAL.................1.
MIXING HEIGHT.......1500-3100 FT AGL DECREASING TO 200-800 FT AGL
                    LATE IN THE EVENING AND OVERNIGHT.
MIXING WINDS........SOUTHWEST 8 TO 13 MPH.
DISPERSION INDEX....5.
CHANCE OF PCPN......0 PERCENT.

TIME (EDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
SKY (%).........45     48     48     48     48     48
WEATHER COV.....
WEATHER TYPE....NONE   NONE   NONE   NONE   NONE   NONE
TEMP............77     70     65     62     59     57
RH..............36     48     60     71     82     88
20 FT WIND......SW 7   SW 6   SW 5   S 2    S 1    S 0
20 FT WIND GUST.15     15     10     5      5      5
MIX HGT (FT)....4200   1500   1500   800    200    200
TRANSPORT WIND..SW 13  S 12   S 12   SW 8   SW 10  SW 10
CHC OF PCPN (%).0      0      0      0      0      0
LAL.............1      1      1      1      1      1

.FRIDAY...

SKY/WEATHER.........MOSTLY SUNNY (35-45 PERCENT).
MAX TEMPERATURE.....AROUND 81.
MIN HUMIDITY........35 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHWEST 6 TO 14 MPH WITH
                    GUSTS TO AROUND 25 MPH IN THE LATE MORNING AND
                    AFTERNOON.
LAL.................1.
MIXING HEIGHT.......700-1100 FT AGL INCREASING TO NEAR 4500 FT AGL
                    IN THE EARLY AFTERNOON.
MIXING WINDS........SOUTH 13 TO 18 MPH SHIFTING TO THE SOUTHWEST 23
                    TO 24 MPH EARLY IN THE AFTERNOON.
DISPERSION INDEX....78.
CHANCE OF PCPN......0 PERCENT.

$$
FORECASTER...SHASHY
REQUESTED BY...KEVIN MACEWEN
TYPE OF REQUEST...PRESCRIBED
.TAG 20090409.PRESC.01/JAX