969
FNUS73 KLSX 091134
FWSLSX
SPOT FORECAST FOR BERGER NORTH...USFWS
NATIONAL WEATHER SERVICE SAINT LOUIS MO
634 AM CDT THU APR 9 2026
FORECAST IS BASED ON IGNITION TIME OF 1000 CDT ON APRIL 09.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE
NATIONAL WEATHER SERVICE.
DISCUSSION
ANOTHER DAY OF ABOVE AVERAGE TEMPERATURES IS EXPECTED TODAY ALONG
WITH MOISTURE SLOW TO INCREASE. THE RELATIVE HUMIDITY WILL DROP
FROM AROUND 50 PERCENT AT IGNITION TO AROUND 30 PERCENT THIS
AFTERNOON. SOUTHWESTERLY WINDS OF 10 TO 12 MPH AND SEASONABLY
HIGH MIXING HEIGHTS OF 5000 TO 9000 FT AGL WILL SUPPORT GOOD
SMOKE DISPERSAL FROM IGNITION THROUGH THE AFTERNOON. AROUND
6 TO 7 PM, A TEMPERATURE INVERSION WILL QUICKLY DEVELOP WITH
WINDS BECOMING SOUTHERLY AND LIGHTER ALONG WITH SMOKE DISPERSAL
BECOMING POOR.
A COLD FRONT WILL MOVE SOUTH INTO THE AREA ON FRIDAY AFTERNOON
BRINGING AN INCREASING CHANCE (50%) OF A WETTING RAIN.
REST OF TODAY
SKY/WEATHER.........SUNNY (10-20 PERCENT).
CWR.................2 PERCENT.
CHANCE OF THUNDER...5 PERCENT.
TEMPERATURE.........68 AT IGNITION...MAX 80.
RH..................47 PERCENT AT IGNITION...MIN 30 PERCENT.
EYE LEVEL WINDS.....WINDS AROUND 4 MPH USING AN ADJUSTMENT FACTOR OF
0.3
WIND (20 FT)........WINDS SOUTHWEST AT 8 MPH AT
IGNITION...OTHERWISE SOUTHWEST WINDS 8 TO 11
MPH.
MIXING HEIGHT.......1700 FT AGL AT IGNITION...OTHERWISE MAX 8800 FT
AGL.
TRANSPORT WINDS.....SOUTHWEST 18 TO 21 MPH.
SMOKE DISPERSAL.....POOR /4210 M/S-M/ AT IGNITION. MAX...FAIR /7320
M/S-M/ INCREASING TO EXCELLENT (17990 M/S-M) IN
THE AFTERNOON.
TIME (CDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM 8PM 9PM
SKY (%).........2 2 2 3 16 17 19 27 35 28 38 18
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CWR.............0 0 0 0 0 0 0 0 10 10 10 10
CHC OF THDR (%).0 0 0 0 0 0 0 10 10 10 10 10
TEMP............68 72 75 77 79 80 79 79 77 74 71 67
RH..............47 43 37 33 31 30 31 32 36 40 46 52
20 FT WIND DIR..SW SW SW SW SW SW S S S S S S
20 FT WIND SPD..8 9 11 11 11 10 10 9 7 6 5 6
20 FT WIND GUST.18 17 17 17 17 17 16 16 15 11 12 13
EYE LVL WND DIR.SW SW SW SW SW SW S S S S S S
EYE LVL WND SPD.4 4 5 5 5 5 5 4 3 3 2 3
EYE LVL WND GST.8 8 8 8 8 8 7 7 7 5 6 6
MIX HGT (KFT)...1.7 2.9 7.1 8.0 8.5 8.8 8.8 6.7 1.1 0.8 0.7 0.6
TRANSP WIND DIR.SW SW SW SW SW SW SW S S S SW S
TRANSP WIND SPD.18 18 21 21 21 21 21 20 15 13 13 13
VRATE KT-FT/1K..27 47 128 144 152 158 158 115 15 8 8 7
VENTRATE CAT....PR FR VGD VGD EXL EXL EXL VGD PR PR PR PR
TONIGHT
SKY/WEATHER.........PARTLY CLOUDY (30-40 PERCENT) THEN BECOMING
MOSTLY CLOUDY (50-60 PERCENT). SLIGHT CHANCE OF
SHOWERS AFTER 3 AM.
CWR.................6 PERCENT.
CHANCE OF THUNDER...13 PERCENT.
TEMPERATURE.........MIN 57.
RH..................MAX 81 PERCENT.
EYE LEVEL WINDS.....WINDS AROUND 3 MPH USING AN ADJUSTMENT FACTOR OF
0.3
WIND (20 FT)........SOUTH WINDS 5 TO 7 MPH.
MIXING HEIGHT.......MIN 600 FT AGL.
TRANSPORT WINDS.....SOUTHWEST 13 TO 18 MPH.
SMOKE DISPERSAL.....POOR (1080 M/S-M).
FRIDAY
SKY/WEATHER.........MOSTLY CLOUDY (80-90 PERCENT). CHANCE OF RAIN
SHOWERS EARLY IN THE MORNING, THEN RAIN SHOWERS
LIKELY AND SLIGHT CHANCE OF THUNDERSTORMS.
CWR.................52 PERCENT.
CHANCE OF THUNDER...24 PERCENT.
TEMPERATURE.........MAX 68.
RH..................MIN 67 PERCENT.
EYE LEVEL WINDS.....WINDS AROUND 2 MPH USING AN ADJUSTMENT FACTOR OF
0.3
WIND (20 FT)........SOUTH WINDS AROUND 5 MPH EARLY IN THE MORNING
BECOMING LIGHT, THEN BECOMING WEST 5 TO 6 MPH
LATE IN THE MORNING SHIFTING TO THE NORTHWEST
AROUND 6 MPH SHIFTING TO THE NORTH 5 TO 6 MPH
LATE IN THE AFTERNOON. GUSTY AND ERRATIC WINDS
EXPECTED NEAR THUNDERSTORMS.
MIXING HEIGHT.......MAX 2200 FT AGL.
TRANSPORT WINDS.....WEST 10 TO 15 MPH SHIFTING TO THE NORTH 8 TO 10
MPH LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR (1010 M/S-M).
FORECASTER...BRITT
REQUESTED BY...CHRIS WOODSON
TYPE OF REQUEST...PRESCRIBED
.TAG 2609734.0/LSX
.DELDT 04/09/26
.FORMATTERVERSION 2.0.0
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