FNUS72 KJAX 151154
FWSJAX

SPOT FORECAST FOR SWARTHOUT...USDA - FOREST SERVICE
NATIONAL WEATHER SERVICE JACKSONVILLE FL
654 AM EST THU JAN 15 2009

FORECAST IS BASED ON IGNITION TIME OF 0900 EST ON JANUARY 15.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...RED FLAG WARNING IN EFFECT FROM NOON TODAY TO 6 PM EST THIS
AFTERNOON...
...FIRE WEATHER WATCH IN EFFECT FROM FRIDAY MORNING THROUGH
FRIDAY EVENING...

.DISCUSSION...AN ARCTIC COLD FRONT WILL MOVE THROUGH THE AREA THIS
AFTERNOON AND EVENING AND USHER IN A COLDER AND DRIER AIRMASS. GUSTY
NORTHERLY WINDS WILL INCREASE TO SUSTAINED AROUND 9 TO 12 MPH DURING THE
AFTERNOON AND RH VALUES WILL DROP TO CRITICAL VALUES. GUSTY WINDS WILL
EXIST TONIGHT AFTER THE ARCTIC FRONT PUSHES THROUGH THE AREA.

ON FRIDAY...AN AREA OF HIGH PRESSURE OVER THE TENNESSEE VALLEY
WILL MOVE EAST WITH A DRY AND COLD AIRMASS CONTINUING. LOWER RH VALUES
ARE ANTICIPATED AND NORTHERLY WINDS WILL BE SUSTAINED NEAR 12 TO 15 MPH
OVER PORTIONS OF NORTHEAST FLORIDA.

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY (17-28 PERCENT). WIDESPREAD FROST EARLY
                    IN THE MORNING.
MAX TEMPERATURE.....AROUND 58.
MIN HUMIDITY........28 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING NORTH 5 TO 9 MPH IN THE
                    LATE MORNING AND AFTERNOON.
MIXING HEIGHT.......400-1500 FT AGL INCREASING TO 2700 FT AGL IN
                    THE AFTERNOON.
MIXING WINDS........NORTH 9 TO 15 MPH.
DISPERSION INDEX....50.

TIME (EST)      9 AM   11 AM  1 PM   3 PM   5 PM
SKY (%).........27     28     28     25     25
WEATHER COV.....
WEATHER TYPE....NONE   NONE   NONE   NONE   NONE
TEMP............34     47     54     56     52
RH..............66     43     32     30     39
20 FT WIND......NW 5   NW 7   N 8    N 9    N 8
20 FT WIND GUST.15     15     15     15     15
MIX HGT (FT)....400    1500   2700   2700   2700
TRANSPORT WIND..NW 14  NW 15  NW 15  NW 15  N 15

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR (20-30 PERCENT).
MIN TEMPERATURE.....AROUND 24.
MAX HUMIDITY........85 PERCENT.
WIND (20 FT)........NORTH WINDS 6 TO 10 MPH.
MIXING HEIGHT.......DECREASING TO 700-1000 FT AGL OVERNIGHT.
MIXING WINDS........NORTH 15 TO 22 MPH.
DISPERSION INDEX....13.

TIME (EST)      6 PM   8 PM   10 PM  MIDNGT 2 AM   4 AM
SKY (%).........25     25     28     28     25     25
WEATHER COV.....
WEATHER TYPE....NONE   NONE   NONE   NONE   NONE   NONE
TEMP............46     38     34     31     30     28
RH..............54     74     83     73     65     62
20 FT WIND......N 6    N 6    N 8    N 9    N 9    N 10
20 FT WIND GUST.15     15     15     20     20     20
MIX HGT (FT)....2700   800    700    700    700    1100
TRANSPORT WIND..N 15   N 15   N 17   N 17   N 20   N 22

.FRIDAY...

SKY/WEATHER.........MOSTLY SUNNY (15-25 PERCENT).
MAX TEMPERATURE.....AROUND 47.
MIN HUMIDITY........17 PERCENT.
WIND (20 FT)........NORTH WINDS 8 TO 12 MPH. GUSTS UP TO 25 MPH IN
                    THE MORNING.
MIXING HEIGHT.......MAXIMUM AROUND 2700 FT AGL.
MIXING WINDS........NORTH 15 TO 23 MPH.
DISPERSION INDEX....43.

$$
FORECASTER...SHASHY
REQUESTED BY...WAYNE BURNS
TYPE OF REQUEST...PRESCRIBED
.TAG 20090115.SWART.01/JAX