FNUS72 KJAX 052119
FWSJAX

SPOT FORECAST FOR IMPASSABLE BAY...USDA-FOREST SERVICE
NATIONAL WEATHER SERVICE JACKSONVILLE FL
519 PM EDT TUE JUL 5 2011

FORECAST IS BASED ON REQUEST TIME OF 1653 EDT ON JULY 05.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

MOISTURE WILL GRADUALLY INCREASE THIS WEEK AS HIGH PRESSURE OVER THE
AREA MOVES OFFSHORE. SCATTERED AFTERNOON THUNDERSTORMS ARE EXPECTED
WEDNESDAY AND ONWARD. MIN RELATIVE HUMIDITIES WILL INCREASE SLIGHTLY
ON WEDNESDAY...WITH VALUES AROUND 40 PERCENT...AND MIN RH'S ARE
EXPECTED TO BE WELL ABOVE CRITICAL VALUES BY THE END OF THE WEEK INTO
THE WEEKEND. LIGHT SOUTHERLY WINDS ARE EXPECTED THROUGH WEDNESDAY
AFTERNOON...BECOMING SOUTHEAST LATER IN THE DAY. WINDS MAY BE LOCALLY
STRONG AND GUSTY NEAR STORMS.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY (45-55 PERCENT) THEN BECOMING
                    MOSTLY CLOUDY (50-60 PERCENT). CHANCE OF
                    SHOWERS AND THUNDERSTORMS UNTIL EARLY MORNING.
MIN TEMPERATURE.....AROUND 71.
MAX HUMIDITY........100 PERCENT.
WIND (20 FT)........SOUTHEAST WINDS 5 TO 6 MPH IN THE EVENING
                    BECOMING LIGHT.
LAL.................3 UNTIL 0200...THEN 1.
MIXING HEIGHT.......7000 FT AGL DECREASING TO 300-1600 FT AGL EARLY
                    IN THE EVENING.
MIXING WINDS........SOUTH 5 TO 7 MPH.
DISPERSION INDEX....2.
CHANCE OF PCPN......20 PERCENT.
LVORI...............10.

TIME (EDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
SKY (%).........48     49     49     52     55     55
WEATHER COV.....CHANCE CHANCE CHANCE CHANCE
WEATHER TYPE....TSTORM TSTORM TSTORM TSTORM NONE   NONE
TEMP............90     84     79     76     74     72
RH..............51     67     82     90     95     100
20 FT WIND......S 6    S 6    SE 5   SE 3   SE 3   SE 1
20 FT WIND GUST.                     5      5      5
MIX HGT (FT)....7000   1600   1600   1000   300    300
TRANSPORT WIND..SW 7   S 7    S 7    S 6    S 5    S 5
LVORI...........10     10     10     10     10     10
DISPERSION INDX.52     5      5      3      2      2
CHC OF PCPN (%).30     30     30     30     10     10
LAL.............3      3      3      3      1      1

.WEDNESDAY...

SKY/WEATHER.........PARTLY SUNNY (55-65 PERCENT). CHANCE OF SHOWERS
                    AND THUNDERSTORMS EARLY IN THE MORNING.
MAX TEMPERATURE.....AROUND 95.
MIN HUMIDITY........45 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHEAST 5 TO 6 MPH EARLY
                    IN THE AFTERNOON.
LAL.................1 UNTIL 0800...THEN 3.
MIXING HEIGHT.......900-1600 FT AGL INCREASING TO 4200-5700 FT AGL.
MIXING WINDS........SOUTH 3 TO 8 MPH.
DISPERSION INDEX....25.
CHANCE OF PCPN......30 PERCENT.

TIME (EDT)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
SKY (%).........56     56     56     59     62     62
WEATHER COV.....       CHANCE CHANCE CHANCE CHANCE CHANCE
WEATHER TYPE....NONE   TSTORM TSTORM TSTORM TSTORM TSTORM
TEMP............71     74     85     92     95     94
RH..............100    97     66     51     45     46
20 FT WIND......SE 1   SE 1   S 1    S 2    SE 5   SE 6
20 FT WIND GUST.5      5      5      5
MIX HGT (FT)....900    1600   1600   3600   5700   5700
TRANSPORT WIND..S 5    S 3    S 3    S 5    S 6    S 6
DISPERSION INDX.2      8      8      21     25     25
CHC OF PCPN (%).10     30     30     30     40     40
LAL.............1      3      3      3      3      3

$$
FORECASTER...PRESNALL
REQUESTED BY...PETER MYERS
TYPE OF REQUEST...WILDFIRE
.TAG 20110705.IMPAS.03/JAX