FNUS72 KJAX 020846
FWSJAX

SPOT FORECAST FOR IMPASSABLE BAY...USDA-FOREST SERVICE
NATIONAL WEATHER SERVICE JACKSONVILLE FL
446 AM EDT SAT JUL 2 2011

FORECAST IS BASED ON REQUEST TIME OF 0800 EDT ON JULY 02.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...HIGH PRESSURE RIDGE WITH DRY AIR AND NO THUNDERSTORM
ACTIVITY IS EXPECTED THROUGH THE WEEKEND. MARGINAL RED FLAG CONDITIONS
WILL BE POSSIBLE AT TIMES THIS AFTERNOON AND A FIRE DANGER STATEMENT
IS IN EFFECT FOR RH VALUES DROPPING TO AROUND 35 PERCENT ALONG WITH
GUSTY EAST WINDS UP TO 15 MPH AS THE ATLANTIC COAST SEA BREEZE FRONT
PUSHES THROUGH DURING THE MID-AFTERNOON HOURS. DISPERSION VALUES WILL
BE CLOSE TO CRITICAL THRESHOLDS IN THE 70 TO 75 RANGE.

PATCHY EARLY MORNING FOG WILL MIX WITH SMOKE AT TIMES AND MAY BECOME
DENSE IN SOME LOCATIONS.

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT). PATCHY FOG EARLY
                    IN THE MORNING.
MAX TEMPERATURE.....AROUND 95.
MIN HUMIDITY........36 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING EAST 10 TO 15 MPH IN THE AFTERNOON.
LAL.................1.
MIXING HEIGHT.......300-1800 FT AGL INCREASING TO 5600-7000 FT AGL.
MIXING WINDS........EAST 5 MPH INCREASING TO 15 TO 20 MPH IN THE AFTERNOON.
DISPERSION INDEX....74.

TIME (EDT)      8 AM   10 AM  NOON   2 PM   4 PM
SKY (%).........23     23     25     36     36
WEATHER COV.....PATCHY
WEATHER TYPE....FOG    NONE   NONE   NONE   NONE
TEMP............73     85     92     95     94
RH..............96     61     44     36     36
20 FT WIND......E 1    E 7    E 10   E 13   E 14
20 FT WIND GUST.5      10     15     15     15
MIX HGT (FT)....1800   1800   4400   7000   7000
TRANSPORT WIND..E 7    E 7    E 14   E 17   E 17
LAL.............1      1      1      1      1

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR (20-30 PERCENT). PATCHY FOG AFTER
                    MIDNIGHT.
MIN TEMPERATURE.....AROUND 67.
MAX HUMIDITY........100 PERCENT.
WIND (20 FT)........EAST WINDS 10 MPH IN THE EVENING BECOMING LIGHT.
LAL.................1.
MIXING HEIGHT.......5600 FT AGL DECREASING TO 300-600 FT AGL IN THE EVENING.
MIXING WINDS........EAST 15 MPH DECREASING TO 5 MPH LATE IN THE EVENING.
DISPERSION INDEX....2.

TIME (EDT)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
SKY (%).........31     31     31     31     16     16
WEATHER COV.....                            PATCHY PATCHY
WEATHER TYPE....NONE   NONE   NONE   NONE   FOG    FOG
TEMP............89     82     76     73     71     69
RH..............42     54     69     79     89     95
20 FT WIND......E 13   E 9    E 6    E 3    E 2    E 1
20 FT WIND GUST.15     15     10     5      5
MIX HGT (FT)....5600   1600   1600   400    300    300
TRANSPORT WIND..E 18   E 14   E 14   E 7    E 3    E 3
LAL.............1      1      1      1      1      1

.SUNDAY...

SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT). PATCHY FOG EARLY
                    IN THE MORNING.
MAX TEMPERATURE.....AROUND 95.
MIN HUMIDITY........33 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING EAST 10 MPH IN THE AFTERNOON.
LAL.................1.
MIXING HEIGHT.......300-1700 FT AGL INCREASING TO 5900-7200 FT AGL.
MIXING WINDS........EAST 5 MPH INCREASING TO 15 MPH IN THE AFTERNOON.
DISPERSION INDEX....71.

$$
FORECASTER...HESS
REQUESTED BY...PETER MYERS
TYPE OF REQUEST...WILDFIRE
.TAG 20110702.IMPAS.01/JAX