509
FNUS73 KLSX 121457
FWSLSX

Spot Forecast for LREC Pasture Prairie burn...LREC
National Weather Service Saint Louis MO
857 AM CST Wed Nov 12 2025

Forecast is based on ignition time of 1300 CST on November 12.
If conditions become unrepresentative, contact the
National Weather Service.

.DISCUSSION...
Northwest winds will pick up slightly this morning closer to 10 mph
before slackening off late this afternoon. Plenty of sunshine is
expected with mixing heights peaking just above 3 kft AGL this
afternoon as relative humidity values drop close to 30 percent.

.REST OF TODAY...

Sky/weather.........Sunny (5-15 percent).
CWR.................0 percent.
Temperature.........64 at ignition...Max 65.
RH..................33 percent at ignition...Min 30 percent.
Eye level winds.....Winds 2 to 3 mph out of the northwest using an
                    adjustment factor of 0.4.
Wind (20 ft)........Winds northwest at 6 mph at
                    ignition...otherwise Northwest winds 5 to 7 mph
                    late in the afternoon becoming light.
Mixing height.......2800 ft AGL at ignition...otherwise max 3200 ft
                    AGL.
Transport winds.....Northwest 9 to 17 mph.
Smoke dispersal.....Marginal /5720 m/s-m/ at ignition. Max...fair
                    /7640 m/s-m/.

TIME (CST)      1PM 2PM 3PM 4PM 5PM 6PM 7PM 8PM 9PM 10P 11P MID
Sky (%).........2   2   2   4   18  20  22  14  18  20  9   11
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
Temp............64  65  65  63  59  55  54  51  50  49  47  46
RH..............33  30  30  32  37  43  47  52  56  61  65  65
20 FT wind dir..NW  NW  NW  NW  W   W   W   W   W   W   W   W
20 FT wind spd..6   7   6   5   4   4   2   2   2   2   2   2
20 FT wind gust.12  14  12  11  8   6   4   4   4   4   4   4
Eye lvl wnd dir.NW  NW  NW  NW  W   W   W   W   W   W   W   W
Eye lvl wnd spd.3   3   3   2   2   2   1   1   1   1   1   1
Eye lvl wnd gst.6   6   6   5   4   3   2   2   2   2   2   2
Mix hgt (kft)...2.8 3.2 3.2 0.9 0.5 0.2 0.4 0.4 0.4 0.4 0.4 0.4
Transp wind dir.NW  NW  NW  NW  W   NW  NW  W   W   W   W   W
Transp wind spd.15  17  17  10  9   8   7   7   7   7   8   7
Vrate kt-ft/1K..36  49  49  9   4   1   3   3   2   2   3   3
Ventrate Cat....PR  FR  FR  PR  PR  PR  PR  PR  PR  PR  PR  PR

.TONIGHT...

Sky/weather.........Mostly clear (10-20 percent).
CWR.................0 percent.
Temperature.........Min 41.
RH..................Max 79 percent.
Eye level winds.....Light winds.
Wind (20 ft)........Light winds.
Mixing height.......Min 200 ft AGL.
Transport winds.....West 3 to 8 mph shifting to the south early in
                    the morning.
Smoke dispersal.....Poor (140 m/s-m).

$$
Forecaster...Gosselin
Requested by...Adam Rembert
Type of request...PRESCRIBED
.TAG 2525675.0/LSX
.DELDT 11/12/25
.FormatterVersion 2.0.0