FNUS73 KLSX 211241
FWSLSX

SPOT FORECAST FOR ICC...ST. CHARLES COUNTY PARKS AND RECREATION
NATIONAL WEATHER SERVICE ST LOUIS MO
741 AM CDT TUE SEP 21 2010

FORECAST IS BASED ON IGNITION TIME OF 1400 CDT ON SEPTEMBER 21.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE
NATIONAL WEATHER SERVICE.

.DISCUSSION...
TEMPERATURES ARE EXPECTED TO CLIMB ABOVE NORMAL WITH DEEP MIXING
HEIGHTS THIS AFTERNOON.  EVEN THOUGH A FRONTAL BOUNDARY WILL
STAY WELL NORTH OF THE AREA THROUGH THURSDAY...A WEAK STORM
SYSTEM WILL BRING SCATTERED THUNDERSTORMS TO THE AREA LATE
TONIGHT AND WEDNESDAY.

.REST OF TODAY...

SKY/WEATHER.........MOSTLY SUNNY.
CWR.................10 PERCENT.
LAL.................NO TSTMS.
TEMPERATURE.........88 AT IGNITION...MAX 91.
RH..................45 PERCENT AT IGNITION...MIN 41 PERCENT.
WIND...EYE LEVEL....WINDS SOUTHWEST AT 4 MPH.
WIND...20 FT........WINDS SOUTHWEST AT 9 MPH.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......5000 FT AGL AT IGNITION...
                    6500 FT AGL AT MAX HEATING.
TRANSPORT WIND......SOUTHWEST AROUND 23 MPH.
VENTILATION RATE....VERY GOOD (20534 M 2/S) AT MAX HEATING.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
                    CHANCE OF SHOWERS AND THUNDERSTORMS.
CWR.................50 PERCENT.
LAL.................9-15 STRIKES.
TEMPERATURE.........MIN 67.
RH..................MAX 91 PERCENT.
WIND...EYE LEVEL....SOUTH WIND 2 TO 3 MPH BECOMING LIGHT LATE.
WIND...20 FT........SOUTH WIND 5 TO 6 MPH BECOMING LIGHT LATE.
                    GUSTY AND ERRATIC WINDS EXPECTED NEAR
                    THUNDERSTORMS.
HAINES INDEX........N/A.
MIXING HEIGHT.......N/A.
TRANSPORT WIND......N/A.
VENTILATION RATE....N/A.

.WEDNESDAY...

SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY SUNNY.
                    SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS.
CWR.................20 PERCENT.
LAL.................1-8 STRIKES.
TEMPERATURE.........MAX 86.
RH..................MIN 49 PERCENT.
WIND...EYE LEVEL....LIGHT WIND EARLY IN THE MORNING BECOMING SOUTH
                    2 TO 4 MPH.
WIND...20 FT........LIGHT WIND EARLY IN THE MORNING BECOMING SOUTH
                    5 TO 9 MPH. GUSTY AND ERRATIC WINDS EXPECTED
                    NEAR THUNDERSTORMS.
HAINES INDEX........3 OR VERY LOW POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......4500 FT AGL AT MAX HEATING.
TRANSPORT WIND......SOUTHWEST AROUND 17 MPH.
VENTILATION RATE....GOOD (10589 M 2/S) AT MAX HEATING.

$$

FORECASTER...BRITT
REQUESTED BY...FORESTRY SUPERVISOR
TYPE OF REQUEST...PRESCRIBED
.TAG 20100921.ICC__.01/LSX