FNUS72 KJAX 202113
FWSJAX

SPOT FORECAST FOR IMPASSABLE BAY...USDA-FOREST SERVICE
NATIONAL WEATHER SERVICE JACKSONVILLE FL
513 PM EDT MON JUN 20 2011

FORECAST IS BASED ON REQUEST TIME OF 1706 EDT ON JUNE 20.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...FIRE WEATHER WATCH IN EFFECT TUESDAY AFTERNOON...

.DISCUSSION....CONTINUED HOT CONDITIONS WITH ISOLATED STORMS.

TUESDAY...AFTERNOON RELATIVE HUMIDITIES ARE EXPECTED TO FALL BELOW CRITICAL
VALUES ACROSS MUCH OF NORTHEAST FLORIDA TUESDAY FOR 2-3 HOURS. EXTENDED
DURATIONS OF LOW RHS ARE EXPECTED ACROSS THE SUWANNEE RIVER VALLEY OF
NORTHEAST FLORIDA IN COMBINATION WITH ELEVATED ERC VALUES AND A FIRE
WEATHER WATCH REMAINS IN EFFECT FOR THESE COUNTIES.

MOISTURE WILL GRADUALLY INCREASE OVER THE AREA WEDNESDAY AS STRONGER
SOUTHWEST FLOW BEGINS TO DEVELOP.

RAIN CHANCES INCREASE LATE IN THE WEEK AS A STRONGER UPPER LEVEL
DISTURBANCE APPROACHES THE AREA.


SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT). PATCHY SMOKE.
MAX TEMPERATURE.....AROUND 99.
MIN HUMIDITY........40 PERCENT.
WIND (20 FT)........WEST WINDS AROUND 7 MPH.
LAL.................1.
MIXING HEIGHT.......6500 FT AGL.
MIXING WINDS........WEST AROUND 13 MPH.
DISPERSION INDEX....MISSING.
CHANCE OF PCPN......10 PERCENT.

TIME (EDT)      5 PM
SKY (%).........35
WEATHER COV.....PATCHY
WEATHER TYPE....SMOKE
TEMP............96
RH..............47
20 FT WIND......SW 8
20 FT WIND GUST.15
MIX HGT (FT)....6500
TRANSPORT WIND..W 13
DISPERSION INDX.90
CHC OF PCPN (%).10
LAL.............1

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY (25-35 PERCENT). PATCHY SMOKE.
MIN TEMPERATURE.....AROUND 73.
MAX HUMIDITY........98 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 5 TO 9 MPH UNTIL EARLY MORNING
                    BECOMING LIGHT.
LAL.................1.
MIXING HEIGHT.......6500 FT AGL DECREASING TO 300-1700 FT AGL EARLY
                    IN THE EVENING.
MIXING WINDS........WEST 6 TO 14 MPH.
DISPERSION INDEX....3.
CHANCE OF PCPN......10 PERCENT.
LVORI...............6.

TIME (EDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
SKY (%).........35     30     30     22     21     21
WEATHER COV.....PATCHY PATCHY PATCHY PATCHY PATCHY PATCHY
WEATHER TYPE....SMOKE  SMOKE  SMOKE  SMOKE  SMOKE  SMOKE
TEMP............93     87     82     79     77     75
RH..............47     64     78     85     88     91
20 FT WIND......SW 8   SW 9   SW 8   SW 7   SW 5   W 2
20 FT WIND GUST.15     15     10     10            5
MIX HGT (FT)....6500   1700   1700   1000   300    300
TRANSPORT WIND..W 13   SW 14  SW 14  SW 10  W 6    W 6
LVORI...........6      6      6      6      6      6
DISPERSION INDX.90     9      9      7      3      3
CHC OF PCPN (%).10     10     10     10     10     10
LAL.............1      1      1      1      1      1

.TUESDAY...

SKY/WEATHER.........MOSTLY SUNNY (20-30 PERCENT). PATCHY SMOKE
                    THROUGH THE DAY.
MAX TEMPERATURE.....AROUND 101.
MIN HUMIDITY........34 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHWEST 5 TO 6 MPH IN
                    THE LATE MORNING AND AFTERNOON.
LAL.................1.
MIXING HEIGHT.......1100-2000 FT AGL INCREASING TO 7700-7800 FT
                    AGL.
MIXING WINDS........SOUTHWEST 6 TO 9 MPH.
DISPERSION INDEX....48.
CHANCE OF PCPN......10 PERCENT.

$$
FORECASTER...PETERSON
REQUESTED BY...PETER MYERS
TYPE OF REQUEST...WILDFIRE
.TAG 20110620.IMPAS.03/JAX