FNUS72 KMFL 111356
FWSMFL

SPOT FORECAST FOR MAILBOX TRUCK RX
NATIONAL WEATHER SERVICE MIAMI FL
856 AM EST THU FEB 11 2010

IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER SERVICE.

000
FNUS72 KMFL 111355
FWSMFL

SPOT FORECAST FOR MAILBOX TRUCK RX...FL. D.O.F.
NATIONAL WEATHER SERVICE MIAMI FL
855 AM EST THU FEB 11 2010

FORECAST IS BASED ON IGNITION TIME OF 0900 EST ON FEBRUARY 11.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE NATIONAL WEATHER
SERVICE.

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 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 25
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.........47 AT IGNITION...MAX 63.
                    MIN HUMIDITY........57 PERCENT AT IGNITION...MIN 27 PERCENT.
DEWPOINT............40.
WIND (20 FT)........WINDS NORTH AT 6 MPH AT IGNITION...OTHERWISE
                    NORTH WINDS 5 TO 7 MPH.
WIND (EYE LEVEL)....NORTH WINDS 5 TO 7 MPH.
POP (12 HR).................0 PERCENT.
POP (12 HR).................0 PERCENT.
LAL.................1.
MIXING HEIGHT.......1300 FT AGL AT IGNITION...OTHERWISE 1300-2400
                    FT AGL.
MIXING WINDS........NORTHEAST 10 TO 14 MPH.
DISPERSION INDEX....27 INCREASING TO 32 IN THE AFTERNOON.
LVORI...............2.

TIME (EST)      9 AM   11 AM  1 PM   3 PM   5 PM   7 PM
SKY (%).........20     20     20     20     20     23
WEATHER COV.....
WEATHER TYPE....NONE   NONE   NONE   NONE   NONE   NONE
12 HR CHC PCPN. 0      0      0      0      0      10
 6 HR CHC PCPN. 0      0      0      0      0      10
TEMP............47     55     61     63     59     53
RH..............57     41     32     27     44     69
20 FT WIND......N 5    N 5    N 5    N 5    N 4    NE 3
20 FT WIND GUST.10     10     10     10     5      5
EYE LEVEL WIND..N 5    N 5    N 5    N 5    N 4    NE 3
EYE LVL WIND G..10     10     10     10     5      5
MIX HGT (FT)....1300   1800   2400   2400   2200   1400
MIXNG WIND......N 14   N 13   N 12   N 12   NE 10  NE 9
DISP IDX (LDSI).23     30     35     35     29     4
LVORI...........3      2      1      1      2      4
LAL.............1      1      1      1      1      1

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT) THEN BECOMING
                    MOSTLY CLOUDY (65-75 PERCENT).
MIN TEMPERATURE.....37.
MAX HUMIDITY........99 PERCENT.
DEWPOINT............43.
WIND (20 FT)........LIGHT WINDS BECOMING EAST AROUND 5 MPH IN THE
                    LATE EVENING AND OVERNIGHT.
WIND (EYE LEVEL)....LIGHT WINDS BECOMING EAST AROUND 5 MPH IN THE
                    LATE EVENING AND OVERNIGHT.
POP (12 HR).................10 PERCENT.
POP (12 HR).................10 PERCENT.
LAL.................1.
MIXING HEIGHT.......500-1400 FT AGL.
MIXING WINDS........EAST 9 TO 13 MPH.
DISPERSION INDEX....6.
LVORI...............6.

$$

FORECASTER...DIXON
REQUESTED BY...JEFF CUMMINGS
TYPE OF REQUEST...PRESCRIBED

$$

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