FNUS73 KLSX 031408
FWSLSX

SPOT FORECAST FOR CHAIN OF ROCKS...U.S. ARMY CORPS OF ENGINEERS
NATIONAL WEATHER SERVICE ST LOUIS MO
908 AM CDT WED APR 3 2013

FORECAST IS BASED ON IGNITION TIME OF 1100 CDT ON APRIL 03.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE
NATIONAL WEATHER SERVICE.

.DISCUSSION...
NORTH-NORTHEAST FLOW WILL VEER TO THE EAST TODAY AS HIGH PRESSURE MOVES
FROM THE MIDWEST TO THE OHIO VALLEY.  THERE IS A CHANCE OF RAIN ACROSS
PARTS OF SOUTHERN MISSOURI AND SOUTHWEST ILLINOIS LATE TONIGHT INTO
THURSDAY AS LOW PRESSURE MOVES THROUGH THE DEEP SOUTH.  WIND WILL BE
LIGHT AND VARIABLE TONIGHT AND THURSDAY.  FRIDAY SHOULD BE WARM AND DRY
AS HIGH PRESSURE BUILDS ACROSS THE REGION.  SATURDAY WILL CONTINUE
THE WARMING TREND WITH TEMPERATURES AROUND 70...LOW RELATIVE HUMIDITY
AND WIND INCREASING TO 10 TO 20 MPH FROM THE SOUTH-SOUTHWEST.

.REST OF TODAY...

SKY/WEATHER.........MOSTLY SUNNY.
CWR.................0 PERCENT.
LAL.................NO TSTMS.
TEMPERATURE.........43 AT IGNITION...MAX 53.
RH..................43 PERCENT AT IGNITION...MIN 30 PERCENT.
WIND...EYE LEVEL....EAST AT 4 MPH...ADJUSTMENT FACTOR 0.4.
WIND...20 FT........WINDS NORTHEAST AT 7 MPH AT
                    IGNITION...OTHERWISE EAST WIND AROUND 7 MPH.
HAINES INDEX........5 OR MODERATE POTENTIAL FOR LARGE PLUME
                    DOMINATED FIRE GROWTH.
MIXING HEIGHT.......3800 FT AGL AT AT IGNITION...5000 FT AGL
                    AT MAX HEATING.
TRANSPORT WIND......EAST AROUND 9 MPH.
VENTILATION RATE....POOR (6237 M 2/S) AT MAX HEATING.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY.
CWR.................10 PERCENT.
LAL.................NO TSTMS.
TEMPERATURE.........MIN 34.
RH..................MAX 72 PERCENT.
WIND...EYE LEVEL....EAST AT 4 MPH...ADJUSTMENT FACTOR 0.4.
WIND...20 FT........EAST WIND 5 TO 7 MPH UNTIL LATE EVENING
                    BECOMING LIGHT IN THE LATE EVENING AND
                    OVERNIGHT.
HAINES INDEX........N/A.
MIXING HEIGHT.......N/A.
TRANSPORT WIND......N/A.
VENTILATION RATE....N/A.

.THURSDAY...

SKY/WEATHER.........PARTLY SUNNY.
CWR.................20 PERCENT.
LAL.................NO TSTMS.
TEMPERATURE.........MAX 56.
RH..................MIN 38 PERCENT.
WIND...EYE LEVEL....LIGHT WIND.
WIND...20 FT........LIGHT WIND UNTIL EARLY AFTERNOON BECOMING
                    NORTHEAST AROUND 5 MPH DURING MID AND LATE
                    AFTERNOON...THEN BECOMING LIGHT LATE IN THE
                    AFTERNOON.
HAINES INDEX........4 OR LOW POTENTIAL FOR LARGE PLUME DOMINATED
                    FIRE GROWTH.
MIXING HEIGHT.......3700 FT AGL AT MAX HEATING.
TRANSPORT WIND......NORTHEAST AROUND 8 MPH.
VENTILATION RATE....POOR (4037 M 2/S) AT MAX HEATING.

$$

FORECASTER...JPK
REQUESTED BY...CHRIS HOPFINGER
TYPE OF REQUEST...PR 20130403.CHAIN.01/LSX