FNUS72 KTAE 231415
FWSTAE

SPOT FORECAST FOR 326...ST. MARKS NWR
NATIONAL WEATHER SERVICE TALLAHASSEE FL
915 AM EST MON FEB 23 2009

FORECAST IS BASED ON IGNITION TIME OF 1000 EST ON FEBRUARY 23.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE AT (850)942-8835.

...RED FLAG WARNING IN EFFECT UNTIL 8 PM EST THIS EVENING FOR LONG
DURATIONS OF LOW RELATIVE HUMIDITY BELOW CRITICAL LEVELS...
...FIRE WEATHER WATCH IN EFFECT FROM LATE TUESDAY MORNING THROUGH
TUESDAY EVENING...

.DISCUSSION...A VERY DRY AIRMASS HAS SETTLED OVER THE REGION IN THE
WAKE OF A COLD FRONT THAT PASSED THROUGH THE REGION THIS PAST WEEKEND.
THIS DRY AIR WILL RESULT IN VERY LOW RELATIVE HUMIDITY VALUES AT THE
BURN SITE BY THIS AFTERNOON. RELATIVE HUMIDITY LEVELS ARE EXPECTED TO
FALL TO 25 PERCENT OR BELOW FOR 3 TO 5 HOURS THIS AFTERNOON AND BOTTOM
OUT NEAR 20 PERCENT FOR A BRIEF PERIOD. THE AIRMASS WILL MOISTEN
SLIGHTLY ON TUESDAY AS WINDS VEER TO EAST AND SOUTHEAST DURING THE
LATE MORNING AND AFTERNOON OFF THE WATERS OF APALACHEE BAY...HOWEVER
CRITICAL DURATIONS OF RELATIVE HUMIDITY BELOW 35 PERCENT STILL APPEAR
LIKELY.

.TODAY...

SKY/WEATHER.........SUNNY (5-15 PERCENT).
MAX TEMPERATURE.....AROUND 60.
MIN HUMIDITY........21 PERCENT.
WIND (20 FT)........NORTH WINDS 6 TO 10 MPH.
CHANCE OF RAIN......0 PERCENT.
LAL.................1.
MIXING HEIGHT.......1500 FT AGL INCREASING TO BETWEEN 3100 AND 3400
                    FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....NORTH 13 TO 16 MPH.
DISPERSION..........68.

TIME (EST)      10 AM  NOON   2 PM   4 PM   6 PM   8 PM
SKY (%).........CLEAR  CLEAR  CLEAR  MCLEAR MCLEAR MCLEAR
WEATHER COV.....NONE   NONE   NONE   NONE   NONE   NONE
WEATHER TYPE....NONE   NONE   NONE   NONE   NONE   NONE
TEMP............44     53     57     60     55     46
RH..............39     28     23     21     29     43
20 FT WIND......N 8    N 9    N 9    N 8    N 7    N 4
20 FT WIND GUST.12     13     13     11     10     5


.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR (20-30 PERCENT).
MIN TEMPERATURE.....AROUND 32.
MAX HUMIDITY........70 PERCENT.
WIND (20 FT)........NORTH WINDS 4 TO 7 MPH EARLY IN THE EVENING
                    BECOMING LIGHT.
CHANCE OF RAIN......0 PERCENT.
LAL.................1.
MIXING HEIGHT.......1500-2000 FT AGL DECREASING TO AROUND 150 FEET AGL
                    IN THE LATE EVENING AND OVERNIGHT.
TRANSPORT WINDS.....NORTH AROUND 12 MPH EARLY IN THE EVENING...THEN
                    BECOMING NORTHEAST AND DECREASING TO 6 TO 8 MPH IN
                    THE LATE EVENING AND OVERNIGHT.
DISPERSION..........6.

.TUESDAY...

SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT).
MAX TEMPERATURE.....AROUND 62.
MIN HUMIDITY........28 PERCENT.
WIND (20 FT)........LIGHT NORTHEAST WIND LESS THAN 5 MPH...BECOMING
                    EAST 6 TO 9 MPH IN THE LATE MORNING...THEN
                    BECOMING SOUTHEAST 7 TO 10 MPH IN THE AFTERNOON.
CHANCE OF RAIN......0 PERCENT.
LAL.................1.
MIXING HEIGHT.......AROUND 1500 FT AGL INCREASING TO BETWEEN 2700
                    AND 3000 FT IN THE AFTERNOON.
TRANSPORT WINDS.....EAST 9 TO 12 MPH.
DISPERSION..........43.

$$
FORECASTER...MROCZKA
REQUESTED BY...BART RYE
TYPE OF REQUEST...PRESCRIBED
.TAG 20090223.326__.01/TAE