FNUS72 KJAX 211451
FWSJAX

SPOT FORECAST FOR 030 HASTINGS...U.S. FOREST SERVICE
NATIONAL WEATHER SERVICE JACKSONVILLE FL
1051 AM EDT TUE APR 21 2009

FORECAST IS BASED ON IGNITION TIME OF 1100 EDT ON APRIL 21.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...RED FLAG WARNING IN EFFECT UNTIL 6 PM EDT THIS EVENING...
...FIRE WEATHER WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH
WEDNESDAY EVENING...

.DISCUSSION...RELATIVE HUMIDITY LEVELS ARE EXPECTED TO DROP TO CRITICAL
VALUES THIS AFTERNOON IN THE WAKE OF A COLD FRONTAL PASSAGE. WEST WINDS
WILL BE GUSTY AT TIMES AT 15 TO 20 MPH. CRITICALLY LOW RH VALUES WILL
AGAIN OCCUR OVER THE AREA WEDNESDAY AFTERNOON. DISPERSION VALUES
WILL BE AROUND 100 ON WEDNESDAY.

RH VALUES WILL BE NEAR CRITICAL VALUES OVER INLAND NE FL ON THURSDAY AND
FRIDAY. WINDS WILL BE 15 MPH OR LESS.

.REST OF TODAY...

SKY/WEATHER.........SUNNY (5-15 PERCENT).
MAX TEMPERATURE.....AROUND 80.
MIN HUMIDITY........29 PERCENT.
WIND (20 FT)........WEST WINDS 9 TO 14 MPH.
LAL.................1.
MIXING HEIGHT.......1200 FT AGL INCREASING TO 4000-5900 FT AGL LATE
                    IN THE MORNING.
MIXING WINDS........WEST 12 TO 18 MPH.
DISPERSION INDEX....63.
CHANCE OF PCPN......0 PERCENT.

TIME (EDT)      11 AM  1 PM   3 PM   5 PM
SKY (%).........8      10     10     6
WEATHER COV.....
WEATHER TYPE....NONE   NONE   NONE   NONE
TEMP............74     77     79     78
RH..............48     35     31     34
20 FT WIND......W 9    W 13   W 14   W 13
20 FT WIND GUST.15     20     20     20
MIX HGT (FT)....4000   4600   5900   5900
TRANSPORT WIND..W 15   W 15   W 18   W 17
CHC OF PCPN (%).0      0      0      0
LAL.............1      1      1      1

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR (10-20 PERCENT).
MIN TEMPERATURE.....AROUND 54.
MAX HUMIDITY........89 PERCENT.
WIND (20 FT)........WEST WINDS 7 TO 12 MPH.
LAL.................1.
MIXING HEIGHT.......5600 FT AGL DECREASING TO 400-1200 FT AGL
                    IN THE EVENING.
MIXING WINDS........WEST 9 TO 17 MPH.
DISPERSION INDEX....5.
CHANCE OF PCPN......0 PERCENT.

TIME (EDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
SKY (%).........6      12     12     19     20     20
WEATHER COV.....
WEATHER TYPE....NONE   NONE   NONE   NONE   NONE   NONE
TEMP............76     70     64     62     59     57
RH..............37     49     60     68     75     81
20 FT WIND......W 12   SW 9   SW 8   SW 8   SW 7   W 7
20 FT WIND GUST.20     15     15     15     10     10
MIX HGT (FT)....5600   1200   1200   800    400    400
TRANSPORT WIND..W 17   W 17   W 17   W 13   W 9    W 9
CHC OF PCPN (%).0      0      0      0      10     10
LAL.............1      1      1      1      1      1

.WEDNESDAY...

SKY/WEATHER.........SUNNY (10-20 PERCENT).
MAX TEMPERATURE.....AROUND 80.
MIN HUMIDITY........23 PERCENT.
WIND (20 FT)........WEST WINDS 7 TO 14 MPH.
MIXING HEIGHT.......900-1300 FT AGL INCREASING TO 4200 FT AGL LATE
                    IN THE MORNING...THEN INCREASING TO 6400 FT AGL
                    IN THE AFTERNOON.
MIXING WINDS........NORTHWEST 12 TO 17 MPH SHIFTING TO THE WEST 20
                    TO 24 MPH LATE IN THE MORNING.
DISPERSION INDEX....105.

$$
FORECASTER...SHASHY
REQUESTED BY...MARK PLOSKI
TYPE OF REQUEST...PRESCRIBED
.TAG 20090421.030HA.01/JAX