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FNUS73 KLSX 201239
FWSLSX
SPOT FORECAST FOR PAINTED ROCK 42...MDC
NATIONAL WEATHER SERVICE SAINT LOUIS MO
639 AM CST TUE JAN 20 2026
FORECAST IS BASED ON IGNITION TIME OF 0800 CST ON JANUARY 20.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE
NATIONAL WEATHER SERVICE.
DISCUSSION
HIGH TEMPERATURES WILL BE JUST ABOVE NORMAL TODAY WITH MINIMUM RELATIVE
HUMIDITY VALUES AROUND 30 PERCENT. MIXING HEIGHTS WILL CLIMB ABOVE
1700 FEET AROUND 11 AM, WITH THE MAXIMUM MIXING HEIGHT AROUND 3500 FEET
THIS AFTERNOON RESULTING IN GOOD SMOKE DISPERSAL. WINDS WILL BE OUT OF
THE SOUTH DURING THE DAY TODAY 9 MPH OR LESS.
DRY WEATHER IS EXPECTED THROUGH WEDNESDAY WITH TEMPERATURES STAYING NEAR
OR JUST ABOVE NORMAL. A COLD FRONT WILL MOVE THROUGH THE SITE ON WEDNESDAY
MORNING CAUSING WINDS TO SHIFT OUT OF THE WEST AND BECOMING GUSTY.
MIXING HEIGHTS ARE EXPECTED TO CLIMB TO AROUND TO 3100 FEET WITH GOOD
SMOKE DISPERSION IN THE AFTERNOON WITH MINIMUM RELATIVE HUMIDITY VALUES
AROUND 40 PERCENT.
REST OF TODAY
SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT).
TEMPERATURE.........17 AT IGNITION...MAX 46.
RH..................53 PERCENT AT IGNITION...MIN 31 PERCENT.
EYE LEVEL WINDS.....WINDS AROUND 2 MPH WITH AN ADJUSTMENT FACTOR OF 0.2
WIND (20 FT)........WINDS SOUTH AT 6 MPH AT IGNITION...OTHERWISE
SOUTHWEST WINDS 6 TO 9 MPH.
MIXING HEIGHT.......600 FT AGL AT IGNITION...OTHERWISE MAX 3500 FT
AGL.
TRANSPORT WINDS.....SOUTHWEST 13 TO 21 MPH INCREASING TO 20 TO 26
MPH LATE IN THE AFTERNOON, THEN SHIFTING TO THE
SOUTH AROUND 16 MPH LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR /1040 M/S-M/ AT IGNITION. MAX...GOOD
/12800 M/S-M/.
TIME (CST) 8 AM 10 AM NOON 2 PM 4 PM 6 PM
SKY (%).........68 36 19 5 4 10
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE NONE NONE
TSTM COV........
TEMP............17 27 38 45 45 39
RH..............53 42 35 31 32 40
20 FT WIND......S 6 SW 7 SW 8 SW 9 S 8 S 8
20 FT WIND GUST.12 14 16 16 15 15
EYE LEVEL WIND..S 3 SW 3 SW 4 SW 4 S 4 S 4
EYE LVL WND GST.6 6 7 7 7 7
MIX HGT (KFT)...0.6 1.4 2.5 3.4 2.0 0.6
TRANSPORT WIND..S 13 SW 18 SW 21 SW 25 SW 20 S 17
VRATE KT-FT/1K..7 23 45 75 34 9
VENTRATE CAT....POOR POOR FAIR GOOD POOR POOR
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (20-30 PERCENT) THEN BECOMING
MOSTLY CLOUDY (65-75 PERCENT).
TEMPERATURE.........MIN 29.
RH..................MAX 81 PERCENT.
EYE LEVEL WINDS.....WINDS AROUND 2 MPH WITH AN ADJUSTMENT FACTOR OF 0.2
WIND (20 FT)........SOUTH WINDS AROUND 8 MPH SHIFTING TO THE
SOUTHWEST 8 TO 10 MPH WITH GUSTS TO AROUND 18
MPH AFTER 3 AM.
MIXING HEIGHT.......MIN 600 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 17 TO 22 MPH SHIFTING TO THE WEST
AROUND 16 MPH EARLY IN THE MORNING.
SMOKE DISPERSAL.....POOR (1370 M/S-M).
WEDNESDAY
SKY/WEATHER.........SUNNY (20-30 PERCENT).
TEMPERATURE.........MAX 45.
RH..................MIN 40 PERCENT.
EYE LEVEL WINDS.....WINDS AROUND 2 MPH WITH AN ADJUSTMENT FACTOR OF 0.2
WIND (20 FT)........WEST WINDS 5 TO 8 MPH WITH GUSTS TO AROUND 17
MPH BECOMING LIGHT.
MIXING HEIGHT.......MAX 3100 FT AGL.
TRANSPORT WINDS.....WEST 15 TO 21 MPH.
SMOKE DISPERSAL.....POOR (1450 M/S-M) EARLY IN THE MORNING
INCREASING TO GOOD MAX (8340 M/S-M) IN THE
AFTERNOON.
FORECASTER...BRITT
REQUESTED BY...AARON HOLSAPPLE
TYPE OF REQUEST...PRESCRIBED
.TAG 2600499.0/LSX
.DELDT 01/20/26
.FORMATTERVERSION 2.0.0
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