273
FNUS73 KLSX 171938
FWSLSX

Spot Forecast for Junction Lookout...MOMOC
National Weather Service Saint Louis MO
138 PM CST Mon Nov 17 2025

Forecast is based on forecast start time of 1400 CST on November 17.
If conditions become unrepresentative, contact the
National Weather Service.

.DISCUSSION...
This is an update to the earlier issued forecast. Humidity is near
its lowest point for the day and will improve this evening,
especially after sunset. Thunderstorms are possible overnight
tonight with winds turning southerly. Expect a wind shift to the
west around midday on Tuesday and then to the northwest a few
hours later, with a drop in humidity behind this last wind shift.


.REST OF TODAY...

Sky/weather.........Partly sunny (65-75 percent). Slight chance of
                    rain.
CWR.................20 percent.
Chance of thunder...7 percent.
Temperature.........63 at forecast start...Max 63.
RH..................25 percent at forecast start...Min 24 percent.
Eye level winds.....3 mph.
Wind (20 ft)........Winds southeast at 9 mph at forecast
                    start...otherwise Southeast winds around 9 mph
                    with gusts to around 23 mph.
Mixing height.......1900 ft AGL at forecast start...otherwise max
                    1900 ft AGL.
Transport winds.....Southeast 18 to 22 mph.
Smoke dispersal.....Marginal /5640 m/s-m/ at forecast start.
                    Max...marginal /5640 m/s-m/.

TIME (CST)      2PM 3PM 4PM 5PM 6PM 7PM 8PM 9PM 10P 11P MID 1AM
Sky (%).........66  72  70  69  65  68  67  71  69  69  74  69
Weather cov.....SCH SCH SCH SCH
Weather type....RN  RN  RN  RN
Tstm cov........
CWR.............20  20  20  20  10  10  10  10  10  10  10  10
Chc of thdr (%).0   10  10  10  10  10  10  10  10  10  10  10
Temp............63  63  63  56  49  49  49  49  49  50  50  50
RH..............25  26  28  37  50  52  54  54  61  61  66  71
20 FT wind dir..SE  SE  SE  SE  SE  SE  SE  S   S   S   S   S
20 FT wind spd..9   9   9   9   9   9   9   9   9   9   9   9
20 FT wind gust.21  21  23  22  23  23  24  25  24  23  22  24
Eye lvl wnd dir.SE  SE  SE  SE  SE  SE  SE  S   S   S   S   S
Eye lvl wnd spd.4   4   4   4   4   4   4   4   4   4   4   4
Eye lvl wnd gst.10  10  10  10  10  10  11  12  11  10  10  11
Mix hgt (kft)...1.9 1.8 1.1 0.8 0.6 0.4 0.6 0.4 0.5 0.7 0.5 0.5
Transp wind dir.S   S   SE  SE  SE  SE  S   S   S   S   S   S
Transp wind spd.22  22  21  18  20  22  22  21  22  20  21  20
Vrate kt-ft/1K..36  33  20  14  10  9   11  8   10  12  10  9
Ventrate Cat....PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR

.TONIGHT...

Sky/weather.........Mostly cloudy (65-75 percent). Slight chance of
                    rain and thunderstorms overnight.
CWR.................10 percent increasing to 20 percent overnight.
Chance of thunder...22 percent.
Temperature.........Min 49.
RH..................Max 100 percent.
Eye level winds.....3 mph.
Wind (20 ft)........South winds 7 to 9 mph with gusts to around 25
                    mph. Gusty and erratic winds expected near
                    thunderstorms overnight.
Mixing height.......Min 400 ft AGL.
Transport winds.....South 18 to 22 mph.
Smoke dispersal.....Poor (1130 m/s-m).

.TUESDAY...

Sky/weather.........Partly sunny (50-60 percent). Slight chance of
                    rain early in the morning.
CWR.................20 percent decreasing to 10 percent.
Chance of thunder...14 percent.
Temperature.........Max 75.
RH..................Min 56 percent.
Eye level winds.....3 mph.
Wind (20 ft)........South winds 6 to 7 mph with gusts to around 21
                    mph shifting to the west 5 to 8 mph with gusts
                    to around 20 mph in the afternoon, then
                    becoming light late in the afternoon.
Mixing height.......Max 4100 ft AGL.
Transport winds.....Southwest 16 to 23 mph shifting to the west 16
                    to 22 mph early in the afternoon, then
                    decreasing to 9 to 10 mph late in the
                    afternoon.
Smoke dispersal.....Poor (600 m/s-m) early in the morning
                    increasing to good max (11990 m/s-m) in the
                    afternoon.

$$
Forecaster...Kimble
Requested by...Patric Marlow
Type of request...WILDFIRE
.TAG 2526147.1/LSX
.DELDT 11/17/25
.FormatterVersion 2.0.0