339
FNUS73 KLSX 272144
FWSLSX
SPOT FORECAST FOR EBO WALKER RX BURN...USDA FOREST SERVICE
NATIONAL WEATHER SERVICE SAINT LOUIS MO
344 PM CST FRI FEB 27 2026
FORECAST IS BASED ON IGNITION TIME OF 0800 CST ON FEBRUARY 27.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE
NATIONAL WEATHER SERVICE.
DISCUSSION
UPDATED DISCUSSION AND FORECAST
MINIMUM RELATIVE HUMIDITY VALUES HAVE DROPPED TO AROUND 20 PERCENT
AS HIGH TEMPERATURES HAVE CLIMBED INTO THE LOWER 70S. DEEP
MIXING HAS DEVELOPED ALLOWING FOR STRONG INSTABILITY IN THE
LOWER LEVEL OF THE ATMOSPHERE. THIS WILL BEGIN TO CHANGE BY 6 PM
AS TEMPERATURES BEGIN TO COOL AND THE MIXING BEGINS TO WEAKEN.
TEMPERATURES WILL FALL BACK INTO THE 60S BETWEEN 6 AND 8 PM AND
THE HUMIDITY WILL BEGIN TO RISE. A COLD FRONT WILL MOVE THROUGH
THE AREA OVERNIGHT CAUSING WINDS TO TURN OUT OF THE NORTH AROUND
AROUND MIDNIGHT. ELEVATED FIRE DANGER IS EXPECTED AGAIN ON
SATURDAY WITH MINIMUM AFTERNOON HUMIDITY FALLING TO AROUND 30
PERCENT AND SOUTHWEST 20 FOOT WINDS INCREASING TO AROUND 15 MPH.
REST OF TODAY
SKY/WEATHER.........SUNNY (0-10 PERCENT).
CWR.................0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
TEMPERATURE.........MAX 75.
RH..................MIN 20 PERCENT.
EYE LEVEL WINDS.....WINDS AROUND 3 MPH WITH AN ADJUSTMENT FACTOR
OF 0.3.
WIND (20 FT)........SOUTHWEST 7 TO 10 MPH LATE IN THE AFTERNOON.
MIXING HEIGHT.......400 FT AGL AT IGNITION...OTHERWISE MAX 5800 FT
AGL.
TRANSPORT WINDS.....SOUTHWEST 13 TO 22 MPH.
SMOKE DISPERSAL.....EXCELLENT MAX (17310 M/S-M) LATE IN THE AFTERNOON.
TIME (CST) 8 AM 10 AM NOON 2 PM 4 PM 6 PM
SKY (%).........4 3 3 1 2 2
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE NONE NONE
TSTM COV........
CWR.............0 0 0 0 0 0
CHC OF THDR (%).0 0 0 0 0 0
TEMP............44 61 68 71 72 66
RH..............89 60 35 26 24 29
20 FT WIND......SW 4 SW 5 SW 5 SW 9 SW 9 SW 4
20 FT WIND GUST.12 15 15 16 17 10
EYE LEVEL WIND..SW 2 SW 2 SW 2 SW 4 SW 4 SW 2
EYE LVL WND GST.6 7 7 7 8 5
MIX HGT (KFT)...0.4 2.0 4.6 5.5 4.1 0.3
TRANSPORT WIND..SW 13 SW 15 SW 16 W 20 W 22 SW 10
VRATE KT-FT/1K..5 26 64 93 78 3
VENTRATE CAT....POOR POOR GOOD GOOD GOOD POOR
TONIGHT
SKY/WEATHER.........MOSTLY CLEAR (20-30 PERCENT) THEN BECOMING
MOSTLY CLOUDY (50-60 PERCENT).
CWR.................2 PERCENT.
CHANCE OF THUNDER...3 PERCENT.
TEMPERATURE.........MIN 41.
RH..................MAX 70 PERCENT.
EYE LEVEL WINDS.....LIGHT WINDS.
WIND (20 FT)........LIGHT WINDS.
MIXING HEIGHT.......MIN 300 FT AGL.
TRANSPORT WINDS.....WEST 9 TO 12 MPH SHIFTING TO THE NORTHEAST 9 TO
10 MPH OVERNIGHT.
SMOKE DISPERSAL.....POOR (360 M/S-M).
SATURDAY
SKY/WEATHER.........PARTLY SUNNY (45-55 PERCENT) THEN BECOMING
MOSTLY SUNNY (40-50 PERCENT).
CWR.................3 PERCENT.
CHANCE OF THUNDER...5 PERCENT.
TEMPERATURE.........MAX 71.
RH..................MIN 31 PERCENT.
EYE LEVEL WINDS.....WINDS AROUND 5 MPH WITH AN ADJUSTMENT FACTOR
OF 0.3.
WIND (20 FT)........LIGHT WINDS BECOMING SOUTHEAST AROUND 5 MPH
LATE IN THE MORNING, THEN SHIFTING TO THE SOUTH
6 TO 7 MPH LATE IN THE MORNING SHIFTING TO THE
SOUTHWEST 5 TO 7 MPH WITH GUSTS TO AROUND 17
MPH LATE IN THE AFTERNOON.
MIXING HEIGHT.......MAX 2400 FT AGL.
TRANSPORT WINDS.....EAST 10 TO 14 MPH SHIFTING TO THE SOUTHWEST 13
TO 21 MPH LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (330 M/S-M) EARLY IN THE MORNING
INCREASING TO MARGINAL MAX (5480 M/S-M) IN THE
AFTERNOON.
FORECASTER...BRITT
REQUESTED BY...WILLIAM KISER
TYPE OF REQUEST...PRESCRIBED
.TAG 2604181.0/LSX
.DELDT 02/27/26
.FORMATTERVERSION 2.0.0
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