FNUS73 KLSX 162012
FWSLSX

SPOT FORECAST FOR DELAIR...USFS
NATIONAL WEATHER SERVICE ST LOUIS MO
212 PM CST WED JAN 16 2013

FORECAST IS BASED ON IGNITION TIME OF 0900 CST ON JANUARY 17.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE
NATIONAL WEATHER SERVICE.

.DISCUSSION...
SEASONABLY WARM WEATHER AHEAD OF A WEAK COLD FRONT ARE EXPECTED TODAY
WITH 10-15 MPH SW WINDS. COLD FRONT IS FORECAST TO MOVE THROUGH THE AREA
OVERNIGHT TONIGHT WITH INCREASING SKY COVER AND WINDS SHIFTING TO THE NORTHWEST
BEHIND THE FRONT. MINIMUM RH VALUES WILL BE IN THE 40-60 PERCENT RANGE. WINDS
WILL TURN BACK OUT OF THE SOUTHWEST ON FRIDAY WITH TEMPERATURES WARMING BACK
INTO THE 40S AND 50S.

.THURSDAY...

TEMPERATURE.........27 AT IGNITION...MAX 34.
RH..................78 PERCENT AT IGNITION...MIN 53 PERCENT.
WIND...EYE LEVEL....WINDS NORTH AT 4 MPH AT IGNITION. USING 0.4 ADJUSTMENT FACTOR.
WIND...20 FT........WINDS NORTH AT 10 MPH AT IGNITION...OTHERWISE
                    NORTHWEST WIND 6 TO 11 MPH.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......800 FT AGL AT IGNITION...1500 FT AGL AT MAX HEATING.
TRANSPORT WIND......NORTH AROUND 22 MPH.

.THURSDAY NIGHT...

TEMPERATURE.........MIN 22.
RH..................MAX 91 PERCENT.
WIND...EYE LEVEL....1-2 MPH VARIABLE WIND DIRECTION. USING 0.4 ADJUSTMENT FACTOR.
WIND...20 FT........NORTHWEST WIND AROUND 5 MPH EARLY IN THE
                    EVENING BECOMING LIGHT UNTIL EARLY
                    MORNING...THEN BECOMING SOUTHWEST 5 TO 6 MPH
                    LATE.
HAINES INDEX........N/A.
MIXING HEIGHT.......N/A.
TRANSPORT WIND......N/A.

.FRIDAY...

TEMPERATURE.........MAX 44.
RH..................MIN 46 PERCENT.
WIND...EYE LEVEL....4-6 MPH FROM SOUTHWEST. USING 0.4 ADJUSTMENT FACTOR.
WIND...20 FT........SOUTHWEST WIND 8 TO 14 MPH WITH GUSTS TO AROUND
                    24 MPH.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......1500 FT AGL AT MAX HEATING.
TRANSPORT WIND......SOUTHWEST AROUND 35 MPH.

$$

FORECASTER...GOSSELIN
REQUESTED BY...CANDY CHAMBERS
TYPE OF REQUEST...PRESCRIBED
.TAG 20130117.DELAI.01/LSX