FNUS72 KMFL 181706
FWSMFL

SPOT FORECAST FOR IMMOKALEE PILE
NATIONAL WEATHER SERVICE MIAMI FL
1206 PM EST WED FEB 18 2009

IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER SERVICE.

SPOT FORECAST FOR IMMOKALEE PILE...BIA
NATIONAL WEATHER SERVICE MIAMI FL
1204 PM EST WED FEB 18 2009

FORECAST IS BASED ON IGNITION TIME OF 1215 EST ON FEBRUARY 18.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...HIGH PRESSURE RIDGE OVER SOUTH FLORIDA WILL MOVE
SOUTHEAST TODAY AS A COLD FRONT MOVES TOWARD NORTH FLORIDA. AS THE
DAY PROGRESSES ...WINDS WILL INCREASE AND BECOME SOUTH SOUTHEAST 15
TO 20 MPH WITH POSSIBLE HIGHER GUSTS. MIXING HEIGHTS WILL BE LIMITED
DUE TO THE INCREASED WINDS BUT DISPERSION WILL NOT BE COMPROMISED AS
THE INCREASED TRANSPORT WINDS ENHANCE DISPERSION AND A GENERALLY GOOD
INDEX IS EXPECTED.

TONIGHT...WINDS WILL BECOME MORE SOUTH...POSSIBLY LEANING TO THE
SOUTH SOUTHWEST AROUND 5 KNOTS. THE SOUTHERLY WINDS THOUGH WILL BRING
INCREASED LOW LEVEL MOISTURE INTO SOUTH FLORIDA TODAY AND INTO
TONIGHT
AND SOME PATCHY FOG WILL BE POSSIBLE IN THE IMMOKALEE AREA.

WINDS WILL BECOME SOUTHWEST AFTER SUNRISE THURSDAY AND INCREASE TO 15
TO 20 MPH. AS THE DAY PROGRESSES...WINDS WILL BECOME WEST IN THE LATE
AFTERNOON AND DECREASE TO 10 TO 15 MPH. THE COLD FRONT WILL MOVE
THROUGH THE AREA BETWEEN 6 TO 8 PM WITH WINDS SHIFTING TO THE
NORTHWEST. THERE WILL BE A CHANCE FOR SHOWERS LATE IN THE DAY
TOMORROW AND EARLY EVENING.

NOTE: AFTER CHECKING THE SURROUNDING OBSERVATIONS...TEMPERATURES AND
DEW POINTS AT THE IMMOKALEE FAWN STATION LOOK GOOD BUT FEEL THAT THE
RELATIVE HUMIDITY CALCULATION AT THE FAWN STATION ID TOO LOW.

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT).
MAX TEMPERATURE.....AROUND 72.
MIN HUMIDITY........52 PERCENT.
DEWPOINT............54.
WIND (20 FT)........SOUTH WINDS 12 TO 15 MPH WITH GUSTS TO AROUND
                    25 MPH.
EYE LEVEL WINDS.....SOUTH WINDS 12 TO 15 MPH.
CHANCE OF PCPN......10 PERCENT.
LAL.................1.
MIXING HEIGHT.......2400-3000 FT AGL.
MIXING WINDS........SOUTH 17 TO 22 MPH.
DISPERSION INDEX....43 INCREASING TO 52 EARLY IN THE
                    AFTERNOON...THEN DECREASING TO 41 LATE IN THE
                    AFTERNOON.
LVORI...............2.

TIME (EST)      NOON   2 PM   4 PM   6 PM   8 PM   10 PM
SKY (%).........40     40     40     40     40     40
WEATHER COV.....
WEATHER TYPE....NONE   NONE   NONE   NONE   NONE   NONE
CHC OF PCPN (%).10     10     10     10     10     10
TEMP............70     72     72     70     67     67
RH..............52     50     54     58     78     81
20 FT WIND......S 11   S 11   S 9    S 9    S 6    S 7
20 FT WIND GUST.25     25     20     20     15     15
EYE LEVEL WIND..S 11   S 11   S 9    S 9    S 6    S 7
EYE LVL WIND G..25     25     20     20     15     15
MIX HGT (FT)....3000   3000   3000   3000   1900   700
MIXNG WIND......SE 22  SE 22  S 17   S 17   S 13   S 14
DISP IDX (LDSI).52     52     41     41     14     12
LVORI...........3      1      1      4      4      4
CHC OF PCPN (%).10     10     10     10     10     10
LAL.............1      1      1      1      1      1

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY (35-45 PERCENT).
MIN TEMPERATURE.....AROUND 65.
MAX HUMIDITY........87 PERCENT.
DEWPOINT............61.
WIND (20 FT)........SOUTH WINDS 8 TO 12 MPH.
EYE LEVEL WINDS.....SOUTH WINDS 8 TO 12 MPH.
CHANCE OF PCPN......10 PERCENT.
LAL.................1.
MIXING HEIGHT.......700-1900 FT AGL.
MIXING WINDS........SOUTH 13 TO 16 MPH.
DISPERSION INDEX....13.
LVORI...............4.

.THURSDAY...

SKY/WEATHER.........PARTLY SUNNY (50-60 PERCENT).
MAX TEMPERATURE.....AROUND 74.
MIN HUMIDITY........64 PERCENT.
DEWPOINT............63.
WIND (20 FT)........SOUTHWEST WINDS 10 TO 13 MPH.
EYE LEVEL WINDS.....SOUTHWEST WINDS 10 TO 13 MPH.
CHANCE OF PCPN......10 PERCENT.
LAL.................1.
MIXING HEIGHT.......2100-3000 FT AGL.
MIXING WINDS........WEST 15 TO 17 MPH.
DISPERSION INDEX....39.
LVORI...............3.

.FORECAST DAYS 3 THROUGH 5...
.FRIDAY...
PARTLY CLOUDY. LOWS IN THE UPPER 50S. HIGHS IN THE MID 60S.
NORTHWEST WINDS AROUND 13 MPH.
.SATURDAY...
MOSTLY CLEAR. LOWS IN THE MID 50S. HIGHS AROUND 70. NORTHEAST
WINDS AROUND 10 MPH.
.SUNDAY...
MOSTLY CLOUDY. LOWS IN THE LOWER 60S. HIGHS IN THE LOWER 70S.
NORTHEAST WINDS AROUND 10 MPH.

$$
FORECASTER...ROTHRUSS
REQUESTED BY...DAVE WALKS
TYPE OF REQUEST...PRESCRIBED

$$

REQUESTED BY...DAVE WALKS
REASON FOR REQUEST...STATE, TRIBAL OR LOCAL FIRE AGENCY WORKING IN COORDINATION WITH A
FEDERAL PARTICIPANT IN THE INTERAGENCY AGREEMENT FOR METEOROLOGICAL SERVICES.