249
FNUS73 KLSX 071448
FWSLSX

Spot Forecast for Mark Twain Lake...U.S. Army Corps of Engineers
National Weather Service Saint Louis MO
948 AM CDT Wed Oct 7 2026

Forecast is based on ignition time of 1200 CDT on October 07.
If conditions become unrepresentative, contact the
National Weather Service.

.DISCUSSION...
A mostly sunny sky with very warm temperatures (highs in the mid 80s)
are expected today. Light southwest winds this morning will gradually
veer to the west by late morning, and then the northwest by early-mid
afternoon due to the passage of a weak "cold" front.

.REST OF TODAY...

Sky/weather.........Sunny (0-10 percent).
CWR.................1 percent.
Chance of thunder...2 percent.
Temperature.........78 at ignition...Max 83.
RH..................50 percent at ignition...Min 43 percent.
Eye level winds.....Winds southwest around 3 mph at ignition, veering
                    more toward the northwest this afternoon with similar
                    speeds using an adjustment factor of 0.4.
Wind (20 ft)........Winds west at 7 mph at ignition...otherwise
                    Northwest winds 6 to 7 mph.
Mixing height.......2000 ft AGL at ignition...otherwise max 3900 ft
                    AGL.
Transport winds.....Northwest 10 to 13 mph.
Smoke dispersal.....Poor /3140 m/s-m/ at ignition. Max...fair /6710
                    m/s-m/.

TIME (CDT)      12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM 8PM 9PM 10P 11P
Sky (%).........1   1   2   3   7   5   2   5   9   15  21  15
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Chc of thdr (%).0   0   0   0   0   0   0   0   0   0   0   0
Temp............78  81  82  83  83  82  79  73  70  67  65  63
RH..............50  49  46  44  43  44  49  59  66  70  73  78
20 FT wind dir..W   W   NW  NW  NW  NW  NW  N   N   N   N   N
20 FT wind spd..7   7   7   7   7   6   4   3   3   2   2   2
20 FT wind gust.14  13  13  14  13  12  10  8   8   7   6   6
Eye lvl wnd dir.W   W   NW  NW  NW  NW  NW  N   N   N   N   N
Eye lvl wnd spd.3   3   3   3   3   3   2   1   1   1   1   1
Eye lvl wnd gst.6   6   6   6   6   6   5   4   4   3   3   3
Mix hgt (kft)...2.0 2.5 3.3 3.9 3.8 3.3 0.8 0.4 0.4 0.4 0.4 0.4
Transp wind dir.W   NW  NW  NW  NW  NW  N   N   N   N   N   N
Transp wind spd.12  12  13  13  12  10  9   9   9   9   9   9
Vrate kt-ft/1K..20  25  37  43  38  30  6   3   3   3   3   3
Ventrate Cat....PR  PR  PR  FR  PR  PR  PR  PR  PR  PR  PR  PR

$$
Forecaster...Gosselin
Requested by...Nicholas Allen
Type of request...PRESCRIBED
.TAG 2623313.1/LSX
.DELDT 10/07/26
.FormatterVersion 2.0.0