FNUS72 KMFL 200857
FWSMFL

SPOT FORECAST FOR CLEWISTON FOG...FHP
NATIONAL WEATHER SERVICE MIAMI FL
357 AM EST THU JAN 20 2011

FORECAST IS BASED ON IGNITION TIME OF 0400 EST ON JANUARY 20.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

...DENSE FOG ADVISORY UNTIL 10 AM...

CURRENT SATELLITE SHOTS INDICATES FOG THICKENING IN THE LAKE OKEECHOBEE
REGION AND SPREADING WESTWARD OVER WESTERN GLADES AND NORTHEASTERN HENDRY
COUNTY. BUT AT THE SAME TIME...CLEWISTON ITSELF DOES NOT HAVE THIS DENSE
FOG WITH SOME CLEARING FROM LAKE HARBOR TO ABOUT HALFWAY TO MOORE HAVEN
...BUT JUST ALONG THE LAKE SHORE. VISIBILITY HAS BEEN REPORTED TO BE AS
LOW AS 200 TO 300 FEET ALONG U S 27 SOUTH OF SOUTH BAY TO THE BROWARD
COUNTY BORDER. THIS THICK FOG IS EXPECTED TO AFFECT MORE OR THE AREA
BEFORE SUNRISE. BUOYS ON THE LAKE INDICATE A NORTHERLY WIND AROUND 5 MPH
THAT WILL KEEP THE DENSE FOG AWAY FORM CLEWISTON ITSELF BUT U S 27 SOUTHEAST
OF LAKE HARBOR AND WEST OF CLEWISTON HAVE DENSE FOG.

.TODAY...

SKY/WEATHER.........PARTLY SUNNY. AREAS OF DENSE FOG EARLY IN THE
                    MORNING. SLIGHT CHANCE OF RAIN SHOWERS IN THE
                    LATE MORNING AND AFTERNOON.
MAX TEMPERATURE.....MAX 81.
MIN HUMIDITY........MIN 58 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTH AROUND 6 MPH IN THE
                    AFTERNOON.
EYE LEVEL WINDS.....LIGHT WINDS BECOMING SOUTH AROUND 6 MPH IN THE
                    AFTERNOON.
CHANCE OF PCPN......20 PERCENT.
LAL.................1.
MIXING HEIGHT.......300-1700 FT AGL INCREASING TO 3000-3500 FT AGL
                    IN THE LATE MORNING AND AFTERNOON.
TRANSPORT WINDS.....NORTH AROUND 2 MPH SHIFTING TO THE SOUTHWEST 1
                    TO 8 MPH.
DISPERSION INDEX....5 INCREASING TO 36.
LVORI...............5.

TIME (EST)      6 AM   8 AM   10 AM  NOON   2 PM   4 PM
SKY (%).........40     54     54     54     50     50
WEATHER COV.....AREAS  AREAS  S CHC  S CHC  S CHC  S CHC
WEATHER TYPE....FOG    FOG    RNSHWR RNSHWR RNSHWR RNSHWR
TEMP............58     61     68     74     78     81
RH..............100    100    90     74     64     58
20 FT WIND......N 2    E 1    SE 2   SE 2   S 5    SW 5
20 FT WIND GUST.              5      5      10     10
EYE LEVEL WIND..N 2    E 1    SE 2   SE 2   S 5    SW 5
EYE LEVEL WIND..              5      5      10     10
MIX HGT (FT)....300    1700   3000   3000   3500   3500
MIXNG WIND......N 2    E 1    SE 5   SE 5   S 8    SW 8
DISPERSION IDX..2      8      17     17     36     35
LVORI...........9      8      3      3      1      1
CHC OF PCPN (%).10     20     20     20     20     20
LAL.............1      1      1      1      1      1

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
                    SLIGHT CHANCE OF SHOWERS IN THE EVENING. CHANCE
                    OF SHOWERS AFTER MIDNIGHT. PATCHY FOG IN THE
                    LATE EVENING AND OVERNIGHT.
MIN TEMPERATURE.....MIN 61.
MAX HUMIDITY........MAX 100 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS AROUND 6 MPH EARLY IN THE
                    EVENING BECOMING LIGHT.
EYE LEVEL WINDS.....SOUTHWEST WINDS AROUND 6 MPH EARLY IN THE
                    EVENING BECOMING LIGHT.
CHANCE OF PCPN......40 PERCENT.
LAL.................1.
MIXING HEIGHT.......1900-3500 FT AGL DECREASING TO 200-300 FT AGL
                    IN THE LATE EVENING AND OVERNIGHT.
TRANSPORT WINDS.....SOUTH 1 TO 8 MPH.
DISPERSION INDEX....35 DECREASING TO 6.
LVORI...............5.

$$
FORECASTER...ROTHFUSS
REQUESTED BY...LT BUENO
TYPE OF REQUEST...PRESCRIBED