FNUS72 KFFC 071236
FWSFFC

SPOT FORECAST FOR WALTON CNTY HAZMAT EXERCISE...WALTON COUNTY EMA
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
836 AM EDT WED APR 7 2010

FORECAST IS BASED ON INCIDENT TIME OF 0630 EDT ON APRIL 07.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
HIGH PRESSURE ALOFT...WHICH HAS PERSISTED FOR THE PAST SEVERAL
DAYS ACROSS THE SOUTHEAST U.S...WILL BEGIN TO SHIFT EAST TODAY
AS A COLD FRONT AND UPPER TROUGH MOVE INTO THE AREA FROM THE
NORTHWEST. UNSEASONABLY WARM...DRY CONDITIONS WILL GIVE WAY
TO A CHANCE OF SHOWERS AND THUNDERSTORMS THURSDAY...ALONG WITH
COOLER TEMPERATURES. DRY WEATHER WILL RETURN FOR FRIDAY AND
CONTINUE INTO NEXT WEEK. TEMPERATURES WILL COOL BACK TO SEASONAL
LEVELS...THEN GRADUALLY WARM ABOVE NORMAL AGAIN NEXT WEEK. ONE
MORE WARM...DRY TODAY MAY PUSH RELATIVE HUMIDITY VALUES IN THE
NORTHEAST PART OF THE STATE NEAR CRITICAL VALUES THIS AFTERNOON.
OTHERWISE...CRITICAL FIRE WEATHER RELATIVE HUMIDITY AND WIND VALUES
ARE NOT EXPECTED TODAY. RAIN AND COOLER TEMPERATURES WILL PREVENT
CRITICAL FIRE WEATHER CONDITIONS FROM BEING REALIZED THURSDAY AND
FRIDAY.


.TODAY...

SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT).
                    TEMPERATURE.........58 AT INCIDENT...MAX 86.
                    MIN HUMIDITY........83 PERCENT AT INCIDENT...MIN 32 PERCENT.
WIND (20 FT)........WINDS SOUTHWEST AT 3 MPH AT
                    INCIDENT...OTHERWISE LIGHT WINDS BECOMING
                    SOUTHWEST 5 TO 9 MPH IN THE LATE MORNING AND
                    AFTERNOON.
CWR.................0 PERCENT.
LAL.................1.
MIXING HEIGHT.......0 FT AGL AT INCIDENT...OTHERWISE 0 FT AGL
                    INCREASING TO 6700-6800 FT AGL.
TRANSPORT WINDS.....SOUTH AROUND 10 MPH INCREASING TO SOUTHWEST 22
                    TO 26 MPH EARLY IN THE MORNING.
DISPERSION INDEX....4 INCREASING TO 120 EARLY IN THE MORNING.
LVORI...............3.

TIME (EDT)      6AM 7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........13  13  45  45  45  45  45  45  48  48  48  48
WEATHER COV.....
WEATHER TYPE....
TEMP............58  57  58  64  70  75  78  81  83  84  85  86
RH..............79  83  81  66  55  48  42  39  35  34  32  32
20 FT WIND DIR..SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  S   S
20 FT WIND SPD..3   3   3   5   6   7   8   8   9   9   8   8
20 FT WIND GUST.5   5   5           10  10  10  10  10  10  10
DISPERSION IDX..4   4   120 120 120 120 120 120 120 120 120 120
LVORI...........4   4   1   1   1   1   1   1   1   1   1   1
CWR.............0   0   0   0   0   0   0   0   0   0   0   0

$$
FORECASTER...LAMBACK
REQUESTED BY...EMA
TYPE OF REQUEST...HAZMAT
.TAG 20100407.WALTO.01/FFC