FNUS73 KLSX 051957
FWSLSX

SPOT FORECAST FOR BLAIR...USFS
NATIONAL WEATHER SERVICE ST LOUIS MO
257 PM CDT TUE APR 5 2011

FORECAST IS BASED ON REQUEST TIME OF 1434 CDT ON APRIL 05.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE
NATIONAL WEATHER SERVICE.

.DISCUSSION...
WINDS WILL BE SLOW TO DIMINISH THIS EVENING...ESPECIALLY ALONG RIDGE
TOPS. WINDS SHOULD GRADUALLY BECOME SOUTHERLY WEDNESDAY LATE MORNING
INTO THE AFTERNOON HOURS WITH GUSTS OF 25 TO 30 MPH. AS TEMPERATURES
CLIMB INTO THE UPPER 60S TO LOWER 70S...RELATIVE HUMIDITY VALUES ARE
EXPECTED TO DROP TO THE LOWER 30S TO UPPER 20S ON WEDNESDAY. THERE IS
A SLIGHT CHANCE FOR PRECIPITATION LATE THURSDAY AFTERNOON INTO THE
EVENING HOURS.


.THIS AFTERNOON...

SKY/WEATHER.........MOSTLY SUNNY.
CWR.................0 PERCENT.
LAL.................NO TSTMS.
TEMPERATURE.........59 AT REQUEST...MAX 62.
RH..................26 PERCENT AT REQUEST...MIN 21 PERCENT.
WIND...EYE LEVEL....SOUTHWEST AT 4 MPH USING ADJUSTMENT FACTOR
                    OF 0.4.
WIND...20 FT........SOUTHWEST WIND 10 TO 11 MPH WITH GUSTS TO
                    AROUND 15 MPH.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......5200 FT AGL.
TRANSPORT WIND......WEST AROUND 18 MPH.
VENTILATION RATE....GOOD (13166 M 2/S) AT MAX HEATING.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLEAR.
CWR.................0 PERCENT.
LAL.................NO TSTMS.
TEMPERATURE.........MIN 41.
RH..................MAX 65 PERCENT.
WIND...EYE LEVEL....SOUTH-SOUTHWEST AROUND 4 MPH USIND ADJUSTMENT
                    FACTOR OF 0.4.
WIND...20 FT........SOUTH-SOUTHWEST WIND 10 TO 12 MPH.


.WEDNESDAY...

SKY/WEATHER.........MOSTLY SUNNY.
CWR.................0 PERCENT.
LAL.................NO TSTMS.
TEMPERATURE.........MAX 69.
RH..................MIN 31 PERCENT.
WIND...EYE LEVEL....SOUTHWEST AT 6 MPH SHIFTING TO THE SOUTH AT
                    7 MPH WITH HIGHER GUSTS POSSIBLE IN THE LATE
                    MORNING AND AFTERNOON.
WIND...20 FT........SOUTHWEST WIND 9 TO 14 MPH EARLY IN THE MORNING
                    SHIFTING TO THE SOUTH 12 TO 17 MPH WITH GUSTS
                    TO AROUND 28 MPH IN THE LATE MORNING AND
                    AFTERNOON.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......3800 FT AGL AT MAX HEATING.
TRANSPORT WIND......SOUTHWEST AROUND 29 MPH.
VENTILATION RATE....GOOD (14800 M 2/S) AT MAX HEATING.

$$

FORECASTER...TILLY
REQUESTED BY...CHARLENE NAZARENKO
TYPE OF REQUEST...WILDFIRE
.TAG 20110405.BLAIR.01/LSX