163
FNUS73 KLSX 091937
FWSLSX

Spot Forecast for Donnellson Wildfire...Montgomery County EMA
National Weather Service Saint Louis MO
237 PM CDT Fri Oct 9 2026

Forecast is based on forecast start time of 1500 CDT on October 09.
If conditions become unrepresentative, contact the
National Weather Service.

.DISCUSSION...
Southerly winds around 10 mph will slacken off this evening and
become light/variable overnight. Increasing clouds and higher
surface moisture levels are forecast on Saturday.

.REST OF TODAY...

Sky/weather.........Sunny (0-5 percent).
CWR.................0 percent.
Chance of thunder...0 percent.
Temperature.........87 at forecast start...Max 87.
RH..................18 percent at forecast start...Min 18 percent.
Eye level winds.....Winds south around 4 to 5 mph using an adjustment
                    factor of 0.4.
Wind (20 ft)........Winds south around 10 mph with gusts near 15 mph.
Mixing height.......4500 ft AGL at forecast start...otherwise max
                    4700 ft AGL.
Transport winds.....South 15 to 18 mph.
Smoke dispersal.....Good /9240 m/s-m/ at forecast start. Max...good
                    /9570 m/s-m/.

TIME (CDT)      3PM 4PM 5PM 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM
Sky (%).........0   0   2   4   6   6   7   7   11  15  20  32
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............87  87  85  82  72  68  65  64  63  62  61  60
RH..............18  19  21  24  35  42  48  52  58  62  65  67
20 FT wind dir..S   S   S   S   SE  SE  SE  SE  SE  SE  SE  SE
20 FT wind spd..10  10  8   6   4   4   4   4   4   3   3   3
20 FT wind gust.16  11  10  8   7   8   9   9   9   8   8   8
Eye lvl wnd dir.S   S   S   S   SE  SE  SE  SE  SE  SE  SE  SE
Eye lvl wnd spd.3   4   3   3   2   2   2   2   2   1   1   1
Eye lvl wnd gst.7   5   5   4   3   4   4   4   4   4   4   4
Mix hgt (kft)...4.5 4.7 1.8 0.7 0.4 0.4 0.4 0.4 0.4 0.4 0.4 0.4
Transp wind dir.S   S   S   S   S   S   S   S   S   S   S   S
Transp wind spd.15  15  13  10  10  12  13  13  13  12  13  12
Vrate kt-ft/1K..59  61  20  6   4   4   5   5   5   4   5   4
Ventrate Cat....FR  GD  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR

.TONIGHT...

Sky/weather.........Mostly clear (20-30 percent) then becoming
                    mostly cloudy (55-65 percent).
CWR.................0 percent.
Chance of thunder...0 percent.
Temperature.........Min 57.
RH..................Max 77 percent.
Eye level winds.....South around 2 to 3 mph becoming light.
Wind (20 ft)........South winds around 6 mph early in the evening
                    becoming light.
Mixing height.......Min 400 ft AGL.
Transport winds.....South 10 to 13 mph.
Smoke dispersal.....Poor (600 m/s-m).

$$
Forecaster...Gosselin
Requested by...Dan Hough
Type of request...WILDFIRE
.TAG 2623503.0/LSX
.DELDT 10/09/26
.FormatterVersion 2.0.0