FNUS72 KJAX 151521
FWSJAX

SPOT FORECAST FOR POWERLINE 37...USDA FOREST SERVICE
NATIONAL WEATHER SERVICE JACKSONVILLE FL
1121 AM EDT WED AUG 15 2012

FORECAST IS BASED ON REQUEST TIME OF 1200 EDT ON AUGUST 15.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...SURFACE HIGH PRESSURE WILL CONTINUE OVER SOUTH
CENTRAL FLORIDA THROUGH THE END OF THE WEEK AS TROUGHING
POSITIONS NORTH OF THE AREA. SOUTH TO SOUTHWEST FLOW WILL
CONTINUE OVER THE AREA WITH ISOLATED TO SCATTERED SHOWERS
AND STORMS OVER THE AREA. RELATIVE HUMIDITIES WILL REMAIN
ABOVE CRITICAL VALUES. WINDS WILL REMAIN BELOW 15 MPH
EXPECT FOR HIGHER GUSTS NEAR STORMS.

SHIFTING WINDS WILL BE POSSIBLE AS STORMS PUSH INTO THE BURN LOCATION
DURING THE MID AFTERNOON HOURS. GUSTY WINDS OVER 40 MPH WILL BE POSSIBLE
IF STRONG STORMS IMPACT THE AREA.

.REST OF TODAY...

SKY/WEATHER.........PARTLY SUNNY (45-55 PERCENT). SLIGHT CHANCE OF
                    SHOWERS LATE IN THE MORNING. SLIGHT CHANCE OF
                    THUNDERSTORMS EARLY IN THE AFTERNOON...THEN
                    CHANCE OF SHOWERS AND THUNDERSTORMS REST OF
                    THE AFTERNOON.
MAX TEMPERATURE.....AROUND 94.
MIN HUMIDITY........48 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 8 TO 9 MPH.
LAL.................1 UNTIL 1200...THEN 2 UNTIL 1400...THEN 3.
MIXING HEIGHT.......2800-4300 FT AGL.
MIXING WINDS........WEST 8 TO 10 MPH.
DISPERSION INDEX....29 INCREASING TO 43 IN THE AFTERNOON.

TIME (EDT)      NOON   2 PM   4 PM
SKY (%).........39     50     64
WEATHER COV.....S CHC  CHANCE CHANCE
WEATHER TYPE....TSTORM TSTORM TSTORM
TEMP............90     94     92
RH..............56     49     50
20 FT WIND......SW 9   SW 9   SW 9
20 FT WIND GUST.15     15     15
MIX HGT (FT)....3400   4200   4000
TRANSPORT WIND..SW 9   W 10   W 10
LAL.............2      3      3

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY (50-60 PERCENT) THEN BECOMING
                    PARTLY CLOUDY (35-45 PERCENT). CHANCE OF
                    SHOWERS AND THUNDERSTORMS EARLY IN THE
                    EVENING...THEN SLIGHT CHANCE OF SHOWERS AND
                    THUNDERSTORMS LATE IN THE EVENING.
MIN TEMPERATURE.....AROUND 75.
MAX HUMIDITY........95 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 5 TO 8 MPH EARLY IN THE EVENING
                    BECOMING LIGHT.
LAL.................3 UNTIL 2200...THEN 2 UNTIL 2400...THEN 1.
MIXING HEIGHT.......1600-3400 FT AGL DECREASING TO 500-1300 FT AGL
                    LATE IN THE EVENING.
MIXING WINDS........SOUTHWEST 6 TO 12 MPH.
DISPERSION INDEX....43 DECREASING TO 7 EARLY IN THE EVENING.

TIME (EDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
SKY (%).........57     50     41     34     31     27
WEATHER COV.....CHANCE CHANCE S CHC
WEATHER TYPE....TSTORM TSTORM TSTORM NONE   NONE   NONE
TEMP............89     83     80     79     77     76
RH..............56     68     77     83     88     91
20 FT WIND......SW 8   SW 5   SW 2   W 2    W 2    SW 2
20 FT WIND GUST.15     10     5      5      5      5
MIX HGT (FT)....3400   2300   1600   1200   800    600
TRANSPORT WIND..W 10   SW 12  W 12   W 9    SW 6   SW 6
LAL.............3      3      2      1      1      1

.THURSDAY...

SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT).
MAX TEMPERATURE.....AROUND 93.
MIN HUMIDITY........51 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING WEST 5 TO 6 MPH LATE IN
                    THE MORNING.
LAL.................1.
MIXING HEIGHT.......400-2200 FT AGL INCREASING TO 2800-4000 FT AGL
                    LATE IN THE MORNING.
MIXING WINDS........WEST 5 TO 10 MPH.
DISPERSION INDEX....6 INCREASING TO 45.

$$
FORECASTER...HESS
REQUESTED BY...MIKE WILLIAMS
TYPE OF REQUEST...WILDFIRE
.TAG 20120815.POWER.01/JAX