FNUS72 KFFC 191441
FWSFFC

SPOT FORECAST FOR GWINNETT TRAINING...GWINNETTCOUNTY FIRE
NATIONAL WEATHER SERVICE PEACHTREE CITY GA
1041 AM EDT THU JUL 19 2012

FORECAST IS BASED ON INCIDENT TIME OF 0934 EDT ON JULY 19.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
EXPECT THUNDERSTORMS TO DEVELOP IN THE AREA AFTER 3 PM...BUT UNTIL THEN
WARM TEMPERATUERS AND HEAT INDICES MAY BE THE MAIN CONCERN. HEAT INDEX
VALUES WILL REACH 95 OR SO BY MIDDAY. WINDS WILL REMAIN OUT OF THE WEST
AT AROUND 5 TO 8 MPH BUT WILL GUST UP TO 25 MPH IN THUNDERSTORMS.

STEVE

.TODAY...

SKY/WEATHER.........PARTLY SUNNY (65-75 PERCENT). SHOWERS
                    AND THUNDERSTORMS LIKELY BY THE AFTERNOON.
MAX TEMPERATURE.....AROUND 92.
MIN HUMIDITY........47 PERCENT.
WIND (20 FT)........WEST 5 TO 8 MPH. GUSTY AND ERRATIC WINDS EXPECTED
                    NEAR THUNDERSTORMS LATE IN THE MORNING.
CWR.................70 PERCENT.
LAL.................4
MIXING HEIGHT.......4400 FT AGL
TRANSPORT WINDS.....WEST 7 TO 12 MPH.
DISPERSION INDEX....40
LVORI...............5

TIME (EDT)      9 AM   11 AM  1 PM   3 PM   5 PM
SKY (%).........60     60     60     75     75
WEATHER COV.....S CHC  CHANCE CHANCE LIKELY LIKELY
WEATHER TYPE....RNSHWR RNSHWR RNSHWR RNSHWR RNSHWR
TEMP............75     83     90     92     91
RH..............83     67     52     48     47
20 FT WIND......W 5    W 5    W 6    W 7    W 6
20 FT WIND GUST.       10     10     15     15
DISPERSION IDX..7      43     43     39     36
LVORI...........4      1      1      1      1
CWR.............20     40     40     60     70

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). SHOWERS AND
                    THUNDERSTORMS LIKELY EARLY IN THE
                    EVENING...THEN SLIGHT CHANCE OF SHOWERS
                    AFTER MIDNIGHT.
MIN TEMPERATURE.....AROUND 73.
MAX HUMIDITY........94 PERCENT.
WIND (20 FT)........SOUTHWEST WINDS 5 TO 7 MPH IN THE EVENING
                    BECOMING LIGHT. GUSTY AND ERRATIC WINDS
                    EXPECTED NEAR THUNDERSTORMS UNTIL EARLY
                    MORNING.
CWR.................70 PERCENT.
LAL.................4 UNTIL 2000...THEN 3 UNTIL 0200...THEN 1.
MIXING HEIGHT.......4400 FT AGL DECREASING TO 0-200 FT AGL EARLY IN
                    THE EVENING.
TRANSPORT WINDS.....SOUTHWEST 5 TO 9 MPH.
DISPERSION INDEX....34 DECREASING TO 5.
LVORI...............4.

.FRIDAY...

SKY/WEATHER.........MOSTLY CLOUDY (70-80 PERCENT). SLIGHT CHANCE OF
                    SHOWERS IN THE MORNING...THEN SHOWERS
                    AND THUNDERSTORMS LIKELY IN THE AFTERNOON.
MAX TEMPERATURE.....AROUND 91.
MIN HUMIDITY........51 PERCENT.
WIND (20 FT)........LIGHT WINDS BECOMING WEST 5 TO 10 MPH WITH
                    GUSTS TO AROUND 20 MPH. GUSTY AND ERRATIC WINDS
                    EXPECTED NEAR THUNDERSTORMS LATE IN THE
                    MORNING.
CWR.................60 PERCENT.
LAL.................4
MIXING HEIGHT.......3600 FT AGL
TRANSPORT WINDS.....SOUTHWEST 7 TO 14 MPH.
DISPERSION INDEX....43
LVORI...............4

$$
FORECASTER...NELSON
REQUESTED BY...DANIEL DEADWYLER
TYPE OF REQUEST...HAZMAT
.TAG 20120719.GWINN.01/FFC