699
FNUS73 KLSX 061151
FWSLSX

Spot Forecast for Bluebell School...Missouri State Parks
National Weather Service Saint Louis MO
551 AM CST Tue Jan 6 2026

Forecast is based on ignition time of 0800 CST on January 06.
If conditions become unrepresentative, contact the
National Weather Service.

.DISCUSSION...
A combination of lower stratus and higher clouds will be clearing
the site through the morning hours, with mostly clear skies by the
late morning. While occasional bouts of high clouds can`t be
ruled out, mostly clear skies are expected through the day. These
mostly clear skies will allow for ample surface heating, with
temperatures warming this afternoon in the mid to upper 60s, with
mixing height topping out around 2,500 ft. While winds will start
the day westerly, a weak, dry cold front passing over the site
today will cause winds to slowly pivot out of the northwest this
afternoon and evening.

Skies will remain clear tonight as the northwesterly winds weaken.
Between 6 and 9am Wednesday morning, winds will quickly switch
to out of the south, but remain weak through the day. High clouds
will increase through the morning into the afternoon as
temperatures warm into the low 60s.

.REST OF TODAY...

Sky/weather.........Sunny (20-30 percent).
CWR.................0 percent.
Chance of thunder...0 percent.
Temperature.........50 at ignition...Max 64.
RH..................86 percent at ignition...Min 43 percent.
Eye level winds.....Winds west at 5 mph or less at ignition...otherwise
                    West winds 5 mph. Gusts up to 7 mph in
                    the late morning and afternoon. Adjustment
factor of 0.3 used.
Wind (20 ft)........Winds west at 6 mph at ignition...otherwise
                    West winds 6 to 8 mph. Gusts up to 21 mph in
                    the late morning and afternoon.
Mixing height.......700 ft AGL at ignition...otherwise max 2600 ft
                    AGL.
Transport winds.....West 13 to 22 mph decreasing to around 12 mph
                    late in the afternoon.
Smoke dispersal.....Poor /1230 m/s-m/ at ignition. Max...fair /7760
                    m/s-m/.

TIME (CST)      8 AM   10 AM  NOON   2 PM   4 PM   6 PM
Sky (%).........48     13     0      1      0      2
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............50     54     61     64     62     55
RH..............86     71     53     45     46     57
20 ft wind......W 6    W 7    W 8    W 7    W 6    W 5
20 ft wind gust.15     18     18     18     17     13
Eye level wind..W 3    W 3    W 4    W 3    W 3    W 2
Eye lvl wnd gst.7      8      8      8      8      6
Mix hgt (kft)...0.7    1.5    1.9    2.5    1.4    0.7
Transport wind..W 13   W 18   W 20   W 22   W 14   NW 13
Vrate kt-ft/1K..8      24     32     47     16     7
Ventrate Cat....POOR   POOR   POOR   FAIR   POOR   POOR

.TONIGHT...

Sky/weather.........Clear (0-5 percent).
CWR.................0 percent.
Chance of thunder...0 percent.
Temperature.........Min 35.
RH..................Max 100 percent.
Eye level winds.....Northwest winds 5 mph or less becoming calm.
Adjustment factor of 0.3 used.
Wind (20 ft)........Northwest winds 5 to 6 mph becoming light.
Mixing height.......Min 200 ft AGL.
Transport winds.....Northwest 6 to 15 mph shifting to the west
                    around 5 mph early in the morning.
Smoke dispersal.....Poor (130 m/s-m).

.WEDNESDAY...

Sky/weather.........Sunny (15-25 percent).
CWR.................0 percent.
Chance of thunder...0 percent.
Temperature.........Max 61.
RH..................Min 44 percent.
Eye level winds.....South winds 5 mph or less early in the morning,
then becoming south 5 mph  or less in the afternoon.
Adjustment factor of 0.3 used.
Wind (20 ft)........South winds 5 to 6 mph early in the morning
                    becoming light, then becoming south 5 to 6 mph
                    in the afternoon.
Mixing height.......Max 1800 ft AGL.
Transport winds.....Southwest 5 to 10 mph shifting to the south 13
                    to 14 mph late in the afternoon.
Smoke dispersal.....Poor (110 m/s-m).

$$
Forecaster...Elmore
Requested by...Ron Colatskie
Type of request...PRESCRIBED
.TAG 2528341.0/LSX
.DELDT 01/06/26
.FormatterVersion 2.0.0