FNUS73 KLSX 021437
FWSLSX

SPOT FORECAST FOR LOGAN UNIT A...MDC
NATIONAL WEATHER SERVICE ST LOUIS MO
937 AM CDT SAT APR 2 2011

FORECAST IS BASED ON IGNITION TIME OF 1130 CDT ON APRIL 02.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE
NATIONAL WEATHER SERVICE.

.DISCUSSION...
HIGH PRESSURE WILL DOMINATE THE AREA TODAY. WINDS WILL BECOME LIGHT AND
VARIABLE LATE THIS MORNING AND GRADUALLY BECOME SOUTHWESTERLY LATE THIS
AFTERNOON. AS TEMPERATURES WARM INTO THE LOWER 60S AND DEEP MIXING OCCURS...
RELATIVE HUMIDITY VALUES ARE EXPECTED TO DROP INTO THE LOWER 30S TO
UPPER 20S.

.REST OF TODAY...

SKY/WEATHER.........PARTLY CLOUDY.
TEMPERATURE.........55 AT IGNITION...MAX 64.
RH..................45 PERCENT AT IGNITION...MIN 32 PERCENT.
WIND...20 FT........WINDS WEST AT 9 MPH AT IGNITION...OTHERWISE
                    WEST WIND 7 TO 9 MPH IN THE LATE MORNING AND
                    AFTERNOON DECREASING TO AROUND 5 MPH LATE IN
                    THE AFTERNOON...THEN BECOMING LIGHT LATE IN THE
                    AFTERNOON.
MIXING HEIGHT.......AROUND 2000 FT AGL AT IGNITION...5400 FT AGL
                    AT MAX HEATING.
TRANSPORT WIND......NORTHWEST AROUND 18 MPH.
VENTILATION RATE....GOOD (13496 M 2/S) AT MAX HEATING.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY THEN BECOMING MOSTLY CLOUDY.
CWR.................20 PERCENT.
TEMPERATURE.........MIN 46.
RH..................MAX 85 PERCENT.
WIND...20 FT........LIGHT WIND EARLY IN THE EVENING BECOMING SOUTH
                    7 TO 12 MPH IN THE LATE EVENING AND OVERNIGHT.
                    GUSTY AND ERRATIC WINDS EXPECTED NEAR
                    THUNDERSTORMS AFTER MIDNIGHT.
MIXING HEIGHT.......N/A.
TRANSPORT WIND......N/A.
VENTILATION RATE....N/A.

.SUNDAY...

SKY/WEATHER.........MOSTLY CLOUDY THEN BECOMING PARTLY SUNNY THEN
                    BECOMING MOSTLY CLOUDY.
CWR.................20 PERCENT.
TEMPERATURE.........MAX 80.
RH..................MIN 47 PERCENT.
WIND...20 FT........WINDY. SOUTH WIND 13 TO 19 MPH WITH GUSTS TO
                    AROUND 33 MPH UNTIL LATE MORNING INCREASING TO
                    21 TO 24 MPH WITH GUSTS TO AROUND 41 MPH IN THE
                    LATE MORNING AND AFTERNOON. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS.
MIXING HEIGHT.......3900 FT AGL AT MAX HEATING.
TRANSPORT WIND......SOUTHWEST AROUND 46 MPH.
VENTILATION RATE....EXCELLENT (24557 M 2/S) AT MAX HEATING.

$$

FORECASTER...TILLY
REQUESTED BY...ERIC MERRITT
TYPE OF REQUEST...PRESCRIBED
.TAG 20110402.LOGAN.01/LSX