FNUS72 KMFL 111539
FWSMFL

SPOT FORECAST FOR S-130/190 RX
NATIONAL WEATHER SERVICE MIAMI FL
1039 AM EST THU FEB 11 2010

IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER SERVICE.

SPOT FORECAST FOR S-130 190 RX...DOI / NPS EVERGLADES
NATIONAL WEATHER SERVICE MIAMI FL
1038 AM EST THU FEB 11 2010

FORECAST IS BASED ON IGNITION TIME OF 1300 EST ON FEBRUARY 11.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.

...RED FLAG WARNING IN EFFECT UNTIL 6 PM EST THIS EVENING...

.DISCUSSION...A RIDGE OF SURFACE HIGH PRESSURE CENTERED ACROSS THE
MISSISSIPPI VALLEY WILL CONTINUE TO IMPACT THE WEATHER ACROSS
SOUTH FLORIDA TODAY...WITH LIGHT NORTHWEST WINDS MAINTAINING A
COOL AND DRY AIR MASS OVER THE REGION. RELATIVE HUMIDITY VALUES
WILL FALL RAPIDLY ONCE AGAIN TODAY...AS A WARMING TREND OCCURS
THROUGH LATE AFTERNOON...WITH VALUES EXPECTED TO FALL TO AROUND 35
PERCENT IN THE VICINITY OF THE BURN SITE. COOL TEMPERATURES WILL
LEAD TO MIXING HEIGHTS NO HIGHER THAN 2400 FEET...WITH NORTHERLY
TRANSPORT LAYER WINDS ALLOWING FOR SMOKE DISPERSION TO THE SOUTH.
DISPERSION INDICES WILL BE POOR TO FAIR...GIVEN LIGHT WINDS IN THE
MIXING LAYER. WITH A DRY AIR MASS EXPECTED TO REMAIN IN PLACE
ACROSS SOUTH FLORIDA OVERNIGHT...THE POTENTIAL FOR NOCTURNAL FOG
DEVELOPMENT IS LOW.

.TODAY...

SKY/WEATHER.........SUNNY (15-25 PERCENT).
                    TEMPERATURE.........64 AT IGNITION...MAX 65.
                    MIN HUMIDITY........36 PERCENT AT IGNITION...MIN 34 PERCENT.
DEWPOINT............40.
WIND (20 FT)........WINDS NORTH AT 7 MPH AT IGNITION...OTHERWISE
                    NORTH WINDS 7 TO 14 MPH.
WIND (EYE LEVEL)....NORTH WINDS 7 TO 14 MPH.
POP (12 HR).................0 PERCENT.
POP (12 HR).................0 PERCENT.
LAL.................1.
MIXING HEIGHT.......2400 FT AGL AT IGNITION...OTHERWISE 1500-2400
                    FT AGL.
MIXING WINDS........NORTHEAST 9 TO 16 MPH.
DISPERSION INDEX....31.
LVORI...............2.

TIME (EST)      1 PM   3 PM   5 PM   7 PM   9 PM   11 PM
SKY (%).........20     20     20     23     34     46
WEATHER COV.....
WEATHER TYPE....NONE   NONE   NONE   NONE   NONE   NONE
12 HR CHC PCPN. 0      0      0      10     10     10
 6 HR CHC PCPN. 0      0      0      10     10     10
TEMP............64     65     63     59     54     51
RH..............36     36     42     53     65     71
20 FT WIND......N 6    N 6    N 5    NE 5   NE 5   NE 5
20 FT WIND GUST.10     10     10     10     10     10
EYE LEVEL WIND..N 6    N 6    N 5    NE 5   NE 5   NE 5
EYE LVL WIND G..10     10     10     10     10     10
MIX HGT (FT)....2400   2400   2400   1600   1600   700
MIXNG WIND......N 10   N 10   NE 9   NE 10  NE 10  E 12
DISP IDX (LDSI).29     29     28     7      7      10
LVORI...........2      2      2      3      3      3
LAL.............1      1      1      1      1      1

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT) THEN BECOMING
                    MOSTLY CLOUDY (65-75 PERCENT).
MIN TEMPERATURE.....49.
MAX HUMIDITY........82 PERCENT.
DEWPOINT............46.
WIND (20 FT)........EAST WINDS 6 TO 7 MPH.
WIND (EYE LEVEL)....EAST WINDS 6 TO 7 MPH.
POP (12 HR).................10 PERCENT.
POP (12 HR).................10 PERCENT.
LAL.................1.
MIXING HEIGHT.......700-1600 FT AGL.
MIXING WINDS........SOUTHEAST 10 TO 13 MPH.
DISPERSION INDEX....9.
LVORI...............4.

$$

FORECASTER...DIXON
REQUESTED BY...ANDREW GILL
TYPE OF REQUEST...PRESCRIBED

$$

REQUESTED BY...ANDREW GILL
REASON FOR REQUEST...ESSENTIAL TO PUBLIC SAFETY, E.G. DUE TO THE PROXIMITY OF
POPULATION CENTERS OR CRITICAL INFRASTRUCTURE.