519
FNUS73 KLSX 261340
FWSLSX

Spot Forecast for Pacific Palisades WSG Field...Missouri Department of Conservation
National Weather Service Saint Louis MO
740 AM CST Tue Nov 26 2024

Forecast is based on ignition time of 0800 CST on November 26.
If conditions become unrepresentative, contact the
National Weather Service.

.DISCUSSION...
Dry conditions are expected today, with primarily light and
variable winds. While full sun can be expected in the morning,
slowly increasing high level clouds can be expected throughout
the day. Mixing heights are likely to be relatively shallow
throughout the afternoon, reaching only a maximum of 2000 feet.
This combination of light winds and shallow mixing heights may
lead to poor smoke dispersion. A very slight increase in wind
speed and shift to the southeast may occur late in the afternoon,
but confidence is low that this will happen within the burn
window. Temperatures are expected to be near seasonal averages,
roughly 50 degrees. Dry conditions are expected overnight, with
light southeast winds and good humidity recoveries.

.REST OF TODAY...

Sky/weather.........Sunny (20-30 percent) then becoming partly
                    sunny (50-60 percent).
Chance of pcpn......0 percent.
LAL.................No Tstms.
Temperature.........29 at ignition...Max 50.
RH..................76 percent at ignition...Min 39 percent.
Wind (20 ft)........Light and variable winds 1 to 5 mph.
Eye level winds.....Light and variable winds 0 to 2 mph.
Haines Index........4 or low potential for large plume dominated fire
                    growth at ignition...max 4.
Mixing height.......1200 ft AGL at ignition...otherwise max 2000 ft AGL.
Transport winds.....Northwest 3 to 7 mph shifting to the southeast
                    3 to 5 mph late in the afternoon.
Smoke dispersal.....Poor /1080 m/s-m/ at ignition. Max...poor /1480 m/s-m/.

TIME (CST)      8 AM   10 AM  NOON   2 PM   4 PM   6 PM
Sky (%).........3      9      28     32     53     70
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
CWR.............0      0      0      0      0      0
LAL.............1      1      1      1      1      1
Temp............29     38     46     49     49     45
RH..............76     55     42     39     42     49
20 ft wind......W 2    W 2    SW 3   S 2    SE 2   SE 3
20 ft wind gust.6      3      4      4      6      6
Eye level wind..W 1    W 1    SW 1   S 1    SE 1   SE 1
Eye lvl wnd gst.3             2      2      3      3
Mix hgt (kft)...1.2    1.6    1.9    2.0    0.9    0.5
Transport wind..NW 7   W 3    SW 6   SW 5   SE 3   SE 6
Haines index....4      4      4      4      4      4
Vrate kt-ft/1K..7      5      9      8      3      3
Ventrate Cat....POOR   POOR   POOR   POOR   POOR   POOR

.TONIGHT...

Sky/weather.........Mostly cloudy (75-85 percent).
Chance of pcpn......10 percent.
LAL.................No Tstms.
Temperature.........Min 36.
RH..................Max 80 percent.
Wind (20 ft)........Southeast winds 2 to 6 mph.
Eye level winds.....Southeast winds 1 to 3 mph.
Haines Index........4 or low potential for large plume dominated
                    fire growth.
Mixing height.......Min 500 ft AGL.
Transport winds.....South 6 to 9 mph.
Smoke dispersal.....Poor (410 m/s-m).

.WEDNESDAY...

Sky/weather.........Cloudy (85-95 percent). Chance of light rain
                    through the day.
Chance of pcpn......50 percent.
LAL.................No Tstms.
Temperature.........Max 49.
RH..................Min 66 percent.
Wind (20 ft)........3 to 6 mph shifting from southeast to northeast.
Eye level winds.....1 to 3 mph shifting from southeast to northeast.
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 6 to 10 mph shifting to the east 6 to
                    8 mph late in the afternoon.
Smoke dispersal.....Poor (660 m/s-m).

$$
Forecaster...19
Requested by...Elizabeth Thompson
Type of request...PRESCRIBED
.TAG 2427356.0/LSX
.DELDT 11/26/24
.FormatterVersion 2.0.0