194
FNUS73 KLSX 251317
FWSLSX
SPOT FORECAST FOR WHITE RIVER TRACE RXB...MISSOURI DEPT OF CONSERVATION
NATIONAL WEATHER SERVICE SAINT LOUIS MO
817 AM CDT TUE AUG 25 2026
FORECAST IS BASED ON IGNITION TIME OF 0900 CDT ON AUGUST 25.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE
NATIONAL WEATHER SERVICE.
DISCUSSION
SEASONABLE TEMPERATURES AND PATCHES OF CLOUDS ARE EXPECTED TODAY WITH
RH STARTING AROUND 75 PERCENT AT IGNITION TIME, ONLY FALLING TO AROUND
60 PERCENT THROUGH MIDDAY. SMOKE DISPERSION WILL GENERALLY BE POOR
TODAY, OWING TO LIGHT SOUTHEASTERLY WINDS, BUT MIXING HEIGHTS WILL
RISE TO 3000 TO 5500 FT AGL BY MIDDAY.
CONDITIONS WILL REMAIN DRY UNTIL EARLY WEDNESDAY WITH A 20 TO 30 PERCENT
CHANCE OF SHOWERS AND THUNDERSTORMS AT TIMES AS A COLD FRONT APPROACHES
AND REACHES THE AREA. RH AND WINDS WILL BE SIMILAR ON WEDNESDAY TO TODAY.
REST OF TODAY
SKY/WEATHER.........MOSTLY SUNNY (25-35 PERCENT).
CWR.................3 PERCENT.
TEMPERATURE.........72 AT IGNITION...MAX 88.
RH..................81 PERCENT AT IGNITION...MIN 61 PERCENT.
EYE LEVEL WINDS.....SOUTHEAST WINDS 2 MPH, USING A 0.4 ADJUSTMENT
FACTOR.
WIND (20 FT)........SOUTHEAST WINDS 5 TO 6 MPH.
MIXING HEIGHT.......1300 FT AGL AT IGNITION...OTHERWISE MAX 5700 FT
AGL.
TRANSPORT WINDS.....SOUTHEAST 7 TO 13 MPH.
SMOKE DISPERSAL.....POOR /2200 M/S-M/ AT IGNITION. MAX...FAIR /6220
M/S-M/.
TIME (CDT) 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM 8PM
SKY (%).........14 12 39 34 39 36 48 37 40 53 64 59
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 0 0 0 0
TEMP............72 77 80 82 85 87 88 88 87 85 83 78
RH..............81 71 69 69 65 61 61 61 61 65 70 82
20 FT WIND DIR..SE SE SE SE SE SE SE SE SE E E E
20 FT WIND SPD..6 6 6 6 5 5 4 4 4 4 3 3
20 FT WIND GUST.12 12 10 10 9 9 8 8 8 8 8 9
EYE LVL WND DIR.SE SE SE SE SE SE SE SE SE E E E
EYE LVL WND SPD.3 3 3 3 2 2 2 2 2 2 1 1
EYE LVL WND GST.6 6 5 5 4 4 4 4 4 4 4 4
MIX HGT (KFT)...1.3 1.7 2.4 3.3 4.4 4.9 5.2 5.7 5.4 4.2 0.5 0.4
TRANSP WIND DIR.S S S SE SE SE SE SE SE SE SE E
TRANSP WIND SPD.13 13 10 9 9 9 8 8 7 7 8 8
VRATE KT-FT/1K..14 19 21 26 35 39 37 40 33 25 4 3
VENTRATE CAT....PR PR PR PR PR PR PR PR PR PR PR PR
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (40-70 PERCENT).
CWR.................3 PERCENT.
TEMPERATURE.........MIN 66.
RH..................MAX 97 PERCENT.
EYE LEVEL WINDS.....LIGHT WINDS.
WIND (20 FT)........LIGHT WINDS.
MIXING HEIGHT.......MIN 400 FT AGL.
TRANSPORT WINDS.....SOUTHEAST 7 TO 13 MPH.
SMOKE DISPERSAL.....POOR (470 M/S-M).
WEDNESDAY
SKY/WEATHER.........PARTLY SUNNY (50-60 PERCENT). SCATTERED SHOWERS
AND THUNDERSTORMS IN THE MORNING. ISOLATED
SHOWERS AND THUNDERSTORMS IN THE AFTERNOON.
CWR.................28 PERCENT.
TEMPERATURE.........MAX 89.
RH..................MIN 59 PERCENT.
EYE LEVEL WINDS.....LIGHT WINDS. GUSTY AND ERRATIC WINDS EXPECTED
NEAR THUNDERSTORMS.
WIND (20 FT)........LIGHT WINDS. GUSTY AND ERRATIC WINDS EXPECTED
NEAR THUNDERSTORMS.
MIXING HEIGHT.......MAX 6600 FT AGL.
TRANSPORT WINDS.....SOUTH 7 TO 8 MPH SHIFTING TO THE SOUTHEAST
AROUND 8 MPH LATE IN THE MORNING, THEN SHIFTING
TO THE SOUTHWEST AROUND 7 MPH LATE IN THE
MORNING SHIFTING TO THE SOUTHEAST EARLY IN THE
AFTERNOON SHIFTING TO THE SOUTHWEST SHIFTING TO
THE NORTHWEST 7 TO 9 MPH LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (440 M/S-M) EARLY IN THE MORNING
INCREASING TO GOOD MAX (8330 M/S-M) IN THE
AFTERNOON.
FORECASTER...PFAHLER
REQUESTED BY...MATTHEW PETER
TYPE OF REQUEST...PRESCRIBED
.TAG 2620486.0/LSX
.DELDT 08/25/26
.FORMATTERVERSION 2.0.0
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