FNUS72 KJAX 191134
FWSJAX

SPOT FORECAST FOR HWY 90...OSCEOLA NATIONAL FOREST
NATIONAL WEATHER SERVICE JACKSONVILLE FL
734 AM EDT FRI APR 19 2013

FORECAST IS BASED ON IGNITION TIME OF 0800 EDT ON APRIL 19.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...SOUTH TO SOUTHWEST WINDS WILL BECOME BREEZY TO WINDY WITH
SPEEDS 15 TO 20 MPH WITH GUSTS UP TO 30 MPH TODAY. DISPERSIONS WILL
BE ELEVATED BETWEEN 70 TO 80 UNITS. RELATIVE HUMIDITIES WILL BE ABOVE
CRITICAL VALUES. THERE WILL BE A CHANCE OF SHOWERS AND THUNDERSTORMS
THIS AFTERNOON THROUGH TONIGHT AS A COLD FRONT APPROACHES AND MOVES OVER
THE REGION. ON SATURDAY THERE WILL BE A GOOD CHANCE OF SHOWERS AS
MOISTURE REMAINS BEHIND THE FRONTAL PASSAGE.

.TODAY...

SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). ISOLATED SHOWERS
                    IN THE MORNING. SCATTERED SHOWERS AND
                    THUNDERSTORMS LATE IN THE AFTERNOON.
MAX TEMPERATURE.....AROUND 85.
MIN HUMIDITY........52 PERCENT.
WIND (20 FT)........SOUTH WINDS 6 TO 14 MPH SHIFTING TO THE
                    SOUTHWEST 16 TO 21 MPH IN THE AFTERNOON.
LAL.................1 UNTIL 1400...THEN 2 UNTIL 1500...THEN 3.
MIXING HEIGHT.......600-2100 FT AGL INCREASING TO 2900-4000 FT AGL
                    LATE IN THE MORNING.
MIXING WINDS........SOUTH 7 TO 14 MPH INCREASING TO SOUTHWEST 21 TO
                    28 MPH IN THE LATE MORNING AND AFTERNOON.
DISPERSION INDEX....10 INCREASING TO 68.

TIME (EDT)      8 AM   10 AM  NOON   2 PM   4 PM
SKY (%).........76     75     74     73     79
WEATHER COV.....                     ISOLTD SCTTRD
WEATHER TYPE....NONE   NONE   NONE   TSTORM TSTORM
TEMP............72     76     82     85     85
RH..............81     70     59     53     52
20 FT WIND......S 7    S 12   S 17   S 21   SW 18
20 FT WIND GUST.10     15     25     30     25
MIX HGT (FT)....800    2100   3300   3900   4000
TRANSPORT WIND..S 9    S 21   S 28   SW 26  SW 25
LAL.............1      1      1      2      3

.TONIGHT...

SKY/WEATHER.........CLOUDY (85-95 PERCENT). NUMEROUS SHOWERS AND
                    THUNDERSTORMS IN THE EVENING. SCATTERED SHOWERS
                    AND ISOLATED THUNDERSTORMS AFTER MIDNIGHT.
MIN TEMPERATURE.....AROUND 56.
MAX HUMIDITY........91 PERCENT.
WIND (20 FT)........NORTH WINDS 8 TO 13 MPH.
LAL.................4 UNTIL 2000...THEN 2.
MIXING HEIGHT.......1800-3500 FT AGL DECREASING TO 500-1200 FT AGL
                    IN THE LATE EVENING AND OVERNIGHT.
MIXING WINDS........SOUTHWEST 13 TO 22 MPH SHIFTING TO THE NORTH 9
                    TO 13 MPH IN THE LATE EVENING AND OVERNIGHT.
DISPERSION INDEX....73 DECREASING TO 11.

TIME (EDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
SKY (%).........85     91     92     92     93     93
WEATHER COV.....SCTTRD LIKELY LIKELY LIKELY LIKELY LIKELY
WEATHER TYPE....TSTORM RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR
TEMP............82     74     67     64     61     58
RH..............57     73     84     86     87     90
20 FT WIND......SW 13  SW 9   W 8    NW 8   NW 8   N 8
20 FT WIND GUST.20     15     10     10     15     15
MIX HGT (FT)....3500   1800   1000   800    700    600
TRANSPORT WIND..SW 22  SW 16  W 10   NW 10  NW 13  N 12
LAL.............3      2      2      2      2      2

.SATURDAY...

SKY/WEATHER.........CLOUDY (85-95 PERCENT). RAIN SHOWERS LIKELY.
MAX TEMPERATURE.....AROUND 67.
MIN HUMIDITY........46 PERCENT.
WIND (20 FT)........NORTHEAST WINDS 8 TO 12 MPH.
LAL.................2.
MIXING HEIGHT.......600-2300 FT AGL INCREASING TO 2900-4100 FT AGL
                    LATE IN THE MORNING.
MIXING WINDS........NORTHEAST 10 TO 18 MPH.
DISPERSION INDEX....16 INCREASING TO 48 IN THE AFTERNOON.

$$
FORECASTER...HESS
REQUESTED BY...MARLENE BULLARD
TYPE OF REQUEST...PRESCRIBED
.TAG 20130419.HWY90.01/JAX