925
FNUS73 KLSX 251225
FWSLSX
SPOT FORECAST FOR MARK TWAIN LAKE...U.S. ARMY CORPS OF ENGINEERS
NATIONAL WEATHER SERVICE SAINT LOUIS MO
725 AM CDT WED MAR 25 2026
FORECAST IS BASED ON IGNITION TIME OF 0700 CDT ON MARCH 25.
IF CONDITIONS BECOME UNREPRESENTATIVE, CONTACT THE
NATIONAL WEATHER SERVICE.
DISCUSSION
PERIODS OF HIGH CLOUDS WILL PASS OVER THE SITE THROUGH THE DAY
WHILE TEMPERATURES WARM TO AROUND 80 DEGREES. SOUTH-SOUTHWESTERLY
WINDS WILL BE USHERING IN LOW-LEVEL MOISTURE, KEEPING RH FROM
DROPPING AS LOW AS IT DID YESTERDAY. HOWEVER, THE WARM
TEMPERATURES WILL STILL ALLOW FOR RH TO DIP TO AROUND 40% EARLY
THIS AFTERNOON BEFORE GRADUALLY INCREASING. THERE IS A LOW CHANCE
THAT CLOUD COVER MAY BE MORE DENSE THAN CURRENTLY ANTICIPATED. IF
THIS OCCURS, THE MIXING HEIGHT WILL STRUGGLE TO REACH 4KFT. AGAIN,
THERE IS ONLY A LOW CHANCE OF THIS OCCURRING.
REST OF TODAY
SKY/WEATHER.........MOSTLY SUNNY (30-40 PERCENT).
CWR.................1 PERCENT.
CHANCE OF THUNDER...2 PERCENT.
TEMPERATURE.........43 AT IGNITION...MAX 79.
RH..................65 PERCENT AT IGNITION...MIN 40 PERCENT.
EYE LEVEL WINDS.....LIGHT WINDS BECOMING SOUTH UP TO 5 MPH
WITH GUSTS TO AROUND 10 MPH EARLY
IN THE MORNING. ADJUSTMENT FACTOR OF
0.4 USED.
WIND (20 FT)........WINDS SOUTHEAST AT 1 MPH AT
IGNITION...OTHERWISE LIGHT WINDS BECOMING SOUTH
6 TO 11 MPH WITH GUSTS TO AROUND 19 MPH EARLY
IN THE MORNING.
MIXING HEIGHT.......400 FT AGL AT IGNITION...OTHERWISE MAX 4100 FT
AGL.
TRANSPORT WINDS.....SOUTH 13 TO 21 MPH INCREASING TO 23 TO 24 MPH
LATE IN THE AFTERNOON.
SMOKE DISPERSAL.....POOR /770 M/S-M/ AT IGNITION. MAX...GOOD /13610
M/S-M/.
TIME (CDT) 7 AM 9 AM 11 AM 1 PM 3 PM 5 PM
SKY (%).........31 26 31 40 44 41
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............43 53 63 72 77 79
RH..............65 50 46 43 42 44
20 FT WIND......SE 1 S 7 S 9 S 10 S 11 S 9
20 FT WIND GUST.5 15 17 18 19 16
EYE LEVEL WIND..SE 0 S 3 S 4 S 5 S 5 S 4
EYE LVL WND GST.2 7 8 8 9 7
MIX HGT (KFT)...0.4 0.6 1.6 2.7 3.4 4.1
TRANSPORT WIND..S 13 S 14 S 16 SW 18 S 21 S 24
VRATE KT-FT/1K..5 7 23 43 62 87
VENTRATE CAT....POOR POOR POOR FAIR GOOD GOOD
FORECASTER...ELMORE
REQUESTED BY...AARON ECKELKAMP
TYPE OF REQUEST...PRESCRIBED
.TAG 2607762.0/LSX
.DELDT 03/25/26
.FORMATTERVERSION 2.0.0
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