Suppression Forecast
Issued by NWS St. Louis, MO

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458
FNUS73 KLSX 221645
FWSLSX

Spot Forecast for Grassland West...MO DNR
National Weather Service Saint Louis MO
1045 AM CST Wed Feb 22 2017

Forecast is based on ignition time of 1100 CST on February 23.
If conditions become unrepresentative, contact the
National Weather Service.

.DISCUSSION...
Another unseasonably warm day is in store for Thursday with highs in
the low 70s expected along with a partly to mostly cloudy sky. An
increase in moisture at the surface will help keep minimum relative
humidity values to above 30 percent however.

.THURSDAY...

Sky/weather.........Mostly cloudy (70-80 percent).
Chance of pcpn......10 percent.
LAL.................No Tstms.
Temperature.........60 at ignition...Max 71.
RH..................64 percent at ignition...Min 44 percent.
Wind (20 ft)........Winds east at 8 mph at ignition...otherwise
                    Southeast winds 8 to 11 mph.
Eye level winds.....4mph out of the east using an adjustment factor of 0.5.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.
Mixing height.......1000 feet AGL at ignition,
                    2000 ft AGL at max heating.
Transport winds.....Southeast around 15 mph.
Smoke dispersal.....Poor (4080 m/s-m) at max heating.

TIME (CST)      11 AM  1 PM   3 PM   5 PM   7 PM   9 PM
Sky (%).........81     76     67     68     67     65
Weather cov.....
Weather type....NONE   NONE   NONE   NONE   NONE   NONE
Tstm cov........
CWR.............10     10     10     10     10     10
LAL.............1      1      1      1      M      M
Temp............60     67     71     69     66     64
RH..............64     56     49     53     58     65
20 ft wind......E 8    SE 9   SE 11  SE 10  SE 9   S 10
20 ft wind gust.10     15     20     15     15     15

$$

Forecaster...Gosselin
Requested by...Roxie Campbell
Type of request...PRESCRIBED
.TAG 1702629.0/LSX



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