Spot Forecast
Issued by NWS St. Louis, MO

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Spot Forecast for Spunky Bottoms...IDNR
National Weather Service Saint Louis MO
1126 AM CST Tue Nov 12 2024

Forecast is based on ignition time of 1200 CST on November 12.
If conditions become unrepresentative, contact the
National Weather Service.

.DISCUSSION...
The mixing heights will remain over 2000 feet through 4 pm.
The winds will remain relatively light today while the minimum
relative humidity values will stay near 50 percent.  On Wednesday,
light rain is expected to move into the during the afternoon with
between 0.10 and 0.20 of an inch expected. Mixing heights will likely
only reach 1800 feet by 2 pm with minimum relative humidity values
staying around 65 percent.


.REST OF TODAY...

Sky/weather.........Sunny (0-10 percent).
Chance of pcpn......0 percent.
LAL.................No Tstms.
Temperature.........50 at ignition...Max 53.
RH..................58 percent at ignition...Min 54 percent.
Wind (20 ft)........Winds east at 9 mph at ignition...otherwise
                    East winds 8 to 9 mph.
Eye level winds.....Winds around 3 mph with and adjustment factor of
                    0.3.
Haines Index........4 or low potential for large plume dominated
                    fire growth at ignition...max 4.
Mixing height.......2700 ft AGL at ignition...otherwise max 2900 ft
                    AGL.
Transport winds.....East 12 to 14 mph.
Smoke dispersal.....Marginal /5140 m/s-m/ at ignition.
                    Max...marginal /5500 m/s-m/.

TIME (CST)      12P 1PM 2PM 3PM 4PM 5PM 6PM 7PM 8PM 9PM 10P 11P
Sky (%).........3   3   3   3   4   6   14  23  37  50  52  56
Weather cov.....
Weather type....
Tstm cov........
CWR.............0   0   0   0   0   0   0   0   0   0   0   0
LAL.............1   1   1   1   1   1   1   1   1   1   1   1
Temp............50  51  52  53  52  49  46  45  44  44  44  43
RH..............58  59  56  54  56  63  73  73  76  76  79  82
20 FT wind dir..E   E   E   E   E   E   E   E   E   E   E   E
20 FT wind spd..9   9   9   9   8   8   7   7   7   7   7   7
20 FT wind gust.14  14  14  13  13  12  12  12  13  13  13  13
Eye lvl wnd dir.E   E   E   E   E   E   E   E   E   E   E   E
Eye lvl wnd spd.4   4   4   4   4   4   3   3   3   3   3   3
Eye lvl wnd gst.6   6   6   6   6   6   6   6   6   6   6   6
Mix hgt (kft)...2.7 2.9 2.9 2.9 1.6 0.5 0.4 0.4 0.4 0.4 0.4 0.4
Transp wind dir.E   E   E   E   E   E   E   E   E   E   E   SE
Transp wind spd.14  14  13  13  14  12  14  13  14  15  15  14
Haines index....4   4   4   4   4   4   4   4   4   4   4   4
Vrate kt-ft/1K..33  35  32  32  19  5   4   4   4   5   5   4
Ventrate Cat....PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR  PR

.TONIGHT...

Sky/weather.........Partly cloudy (25-35 percent) then becoming
                    mostly cloudy (55-65 percent).
Chance of pcpn......0 percent.
LAL.................No Tstms.
Temperature.........Min 41.
RH..................Max 89 percent.
Wind (20 ft)........East winds 7 to 8 mph.
Eye level winds.....Winds around 3 mph with and adjustment factor of
                    0.3.
Haines Index........4 or low potential for large plume dominated
                    fire growth.
Mixing height.......400 ft AGL.
Transport winds.....Southeast 12 to 15 mph.
Smoke dispersal.....Poor (580 m/s-m).

.WEDNESDAY...

Sky/weather.........Mostly cloudy (75-85 percent). Rain in the
                    afternoon.
Chance of pcpn......80 percent.
LAL.................No Tstms.
Temperature.........Max 56.
RH..................Min 64 percent.
Wind (20 ft)........Southeast winds 7 to 10 mph.
Eye level winds.....Winds around 3 mph with and adjustment factor of
                    0.3.
Haines Index........2 to 4 or very low to low potential for large
                    plume dominated fire growth.
Mixing height.......Max 1800 ft AGL.
Transport winds.....Southeast 13 to 16 mph shifting to the south 10
                    to 13 mph late in the afternoon.
Smoke dispersal.....Poor (680 m/s-m).

$$
Forecaster...Britt
Requested by...RKG
Type of request...PRESCRIBED
.TAG 2426373.0/LSX
.DELDT 11/12/24
.FormatterVersion 2.0.0