064
FNUS73 KLSX 252139
FWSLSX

Spot Forecast for Stewart...IDNR
National Weather Service Saint Louis MO
439 PM CDT Wed Mar 25 2026

Forecast is based on ignition time of 0700 CDT on March 26.
If conditions become unrepresentative, contact the
National Weather Service.

.DISCUSSION...
South-southwesterly winds will remain elevated through tonight
and increase in strength Thursday morning out of the southwest.
Southwesterly winds and mostly clear skies through the first
part of the day will lead to anomalous warmth, with record-breaking
temperatures possible (90s). Moisture streaming northward ahead
of a cold front will is expected to mitigate Elevated Fire Danger
conditions. There is a low chance that portions of Missouri south
of the Missouri River and just west of the Mississippi River may
briefly hit this criteria. The cold front sinks southward through
the region Thursday evening into the overnight hours. There is a
80-90% chance of a wetting rain (0.25" aerial average). Temperatures
Friday through Saturday will be seasonable, with another period of
warming starting on Sunday.

.THURSDAY...

Sky/weather.........Sunny (10-20 percent).
CWR.................3 percent.
Chance of thunder...11 percent.
Temperature.........60 at ignition...Max 86.
RH..................90 percent at ignition...Min 45 percent.
Eye level winds.....Southwest winds 2-4 mph.
                    Adjustment factor 0.2
Wind (20 ft)........Winds southwest at 9 mph at
                    ignition...otherwise Southwest winds 9 to 14
                    mph.
Mixing height.......600 ft AGL at ignition...otherwise max 4300 ft
                    AGL.
Transport winds.....Southwest 17 to 26 mph increasing to 29 to 31
                    mph late in the afternoon.
Smoke dispersal.....Poor /1490 m/s-m/ at ignition. Max...excellent
                    /15050 m/s-m/ increasing to excellent (15480
                    m/s-m) late in the afternoon.

TIME (CDT)      7AM 8AM 9AM 10A 11A 12P 1PM 2PM 3PM 4PM 5PM 6PM
Sky (%).........15  20  19  21  20  3   14  25  17  14  23  42
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   90
Chc of thdr (%).0   0   0   0   0   0   10  10  10  10  10  10
Temp............60  62  66  72  76  80  82  85  86  86  86  84
RH..............90  90  81  68  60  54  51  46  45  45  45  51
20 FT wind dir..SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  SW
20 FT wind spd..9   9   11  12  13  13  14  14  14  13  13  12
20 FT wind gust.16  17  18  19  20  21  21  21  21  21  20  18
Eye lvl wnd dir.SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  SW  SW
Eye lvl wnd spd.4   4   5   6   6   6   6   6   6   6   6   6
Eye lvl wnd gst.7   8   8   9   9   10  10  10  10  10  9   8
Mix hgt (kft)...0.6 0.7 1.4 1.9 2.2 2.6 2.9 3.3 3.8 4.3 3.6 1.5
Transp wind dir.SW  SW  SW  W   W   SW  SW  SW  SW  SW  SW  SW
Transp wind spd.17  17  24  24  24  24  24  26  29  31  31  24
Vrate kt-ft/1K..10  11  29  41  47  54  60  76  96  115 99  32
Ventrate Cat....PR  PR  PR  FR  FR  FR  GD  GD  GD  VGD GD  PR

.THURSDAY NIGHT...

Sky/weather.........Partly cloudy (40-50 percent) then becoming
                    mostly cloudy (65-75 percent). Chance of
                    thunderstorms in the evening and overnight.
                    Rain.
CWR.................86 percent.
Chance of thunder...49 percent.
Temperature.........Min 40.
RH..................Max 93 percent.
Eye level winds.....Southwest at 2-4 mph.
                    Winds shifting out of the west at 3-5 mph with
                    occasional gusts of 10-15 mph in the evening.
                    Adjustment factor 0.2
Wind (20 ft)........Southwest winds around 12 mph decreasing to 10
                    to 11 mph in the evening, then shifting to the
                    west around 12 mph late in the evening shifting
                    to the north 13 to 15 mph overnight. Gusts up
                    to 26 mph. Gusty and erratic winds expected
                    near thunderstorms in the evening and
                    overnight.
Mixing height.......Min 900 ft AGL.
Transport winds.....Southwest 20 to 24 mph shifting to the
                    northeast 29 to 31 mph overnight.
Smoke dispersal.....Good (8040 m/s-m) early in the evening
                    decreasing to poor min (2530 m/s-m) late in the
                    night.

$$
Forecaster...Maples
Requested by...Wade Bloemer
Type of request...PRESCRIBED
.TAG 2607907.0/LSX
.DELDT 03/25/26
.FormatterVersion 2.0.0