913
FNUS73 KLSX 241245
FWSLSX
SPOT FORECAST FOR RAY NORBUT SFWA...IDNR
NATIONAL WEATHER SERVICE SAINT LOUIS MO
745 AM CDT TUE MAR 24 2026
FORECAST IS BASED ON IGNITION TIME OF 1000 CDT ON MARCH 24.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE
NATIONAL WEATHER SERVICE.
DISCUSSION
SLIGHTLY WARMER CONDITIONS ARE EXPECTED TODAY ALONG WITH
PREDOMINANTLY DRY CONDITIONS. AT IGNITION, RH WILL BE FALLING AROUND
45 PERCENT, REACHING AROUND 30 PERCENT THIS AFTERNOON. HOWEVER,
SOUTHEASTERLY TO SOUTHERLY WINDS ARE ANTICIPATED TO BE TOO WEAK FOR
ELEVATED FIRE DANGER. MIXING HEIGHTS WILL ALSO BE RISING ABOVE 1700
FT AGL BY 1100 AM AS A LOW-LEVEL TEMPERATURE INVERSION
BREAKS WITH HEIGHTS APPROACHING 4000 FT AGL THIS AFTERNOON, BUT GIVEN
LIGHT WINDS SMOKE DISPERSAL WILL ONLY IMPROVE TO MARGINAL LEVELS. ANOTHER
INVERSION WILL QUICKLY DEVELOP AROUND SUNSET WITH RH ALSO RISING.
REST OF TODAY
SKY/WEATHER.........PARTLY SUNNY (55-65 PERCENT).
CWR.................0 PERCENT.
CHANCE OF THUNDER...0 PERCENT.
TEMPERATURE.........44 AT IGNITION...MAX 60.
RH..................49 PERCENT AT IGNITION...MIN 29 PERCENT.
EYE LEVEL WINDS.....WINDS AROUND 2 MPH USING AN ADJUSTMENT FACTOR OF 0.2
WIND (20 FT)........WINDS SOUTHEAST AT 8 MPH AT
IGNITION...OTHERWISE SOUTHEAST WINDS 5 TO 9
MPH.
MIXING HEIGHT.......1400 FT AGL AT IGNITION...OTHERWISE MAX 3100 FT
AGL.
TRANSPORT WINDS.....SOUTH 8 TO 17 MPH.
SMOKE DISPERSAL.....POOR /3220 M/S-M/ AT IGNITION. MAX...MARGINAL
/5360 M/S-M/.
TIME (CDT) 10 AM NOON 2 PM 4 PM 6 PM 8 PM
SKY (%).........51 62 54 64 65 77
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 51 56 59 59 54
RH..............49 39 33 29 32 41
20 FT WIND......SE 8 S 8 S 8 SE 6 SE 5 SE 5
20 FT WIND GUST.13 13 12 12 10 11
EYE LEVEL WIND..SE 4 S 4 S 4 SE 3 SE 2 SE 2
EYE LVL WND GST.6 6 6 6 5 5
MIX HGT (KFT)...1.4 2.0 2.7 3.1 2.1 0.5
TRANSPORT WIND..S 17 S 15 S 14 S 12 SE 8 S 14
VRATE KT-FT/1K..21 27 32 31 15 6
VENTRATE CAT....POOR POOR POOR POOR POOR POOR
TONIGHT
SKY/WEATHER.........MOSTLY CLOUDY (60-70 PERCENT).
CWR.................1 PERCENT.
CHANCE OF THUNDER...2 PERCENT.
TEMPERATURE.........MIN 43.
RH..................MAX 68 PERCENT.
EYE LEVEL WINDS.....WINDS AROUND 1 MPH USING AN ADJUSTMENT FACTOR OF 0.2
WIND (20 FT)........SOUTHEAST WINDS 5 TO 6 MPH IN THE EVENING
BECOMING LIGHT, THEN BECOMING SOUTH AROUND 6
MPH OVERNIGHT.
MIXING HEIGHT.......MIN 400 FT AGL.
TRANSPORT WINDS.....SOUTH 8 TO 15 MPH.
SMOKE DISPERSAL.....POOR (610 M/S-M).
WEDNESDAY
SKY/WEATHER.........MOSTLY SUNNY (40-50 PERCENT).
CWR.................1 PERCENT.
CHANCE OF THUNDER...3 PERCENT.
TEMPERATURE.........MAX 77.
RH..................MIN 40 PERCENT.
EYE LEVEL WINDS.....WINDS AROUND 3 MPH USING AN ADJUSTMENT FACTOR OF 0.2
WIND (20 FT)........SOUTH WINDS 5 TO 12 MPH.
MIXING HEIGHT.......MAX 3500 FT AGL.
TRANSPORT WINDS.....SOUTH 12 TO 21 MPH INCREASING TO 20 TO 22 MPH
LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (630 M/S-M) EARLY IN THE MORNING
INCREASING TO GOOD MAX (10350 M/S-M) IN THE
AFTERNOON.
FORECASTER...BRITT
REQUESTED BY...ROSS ALBERT
TYPE OF REQUEST...PRESCRIBED
.TAG 2607502.0/LSX
.DELDT 03/24/26
.FORMATTERVERSION 2.0.0
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