Suppression Forecast
Issued by NWS Riverton, WY

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000
FNUS75 KRIW 221636
FWSRIW

Spot Forecast for SOUTH PASS...BLM CAD
National Weather Service Riverton WY
936 AM MST Wed Nov 22 2017

Forecast is based on ignition time of 1000 MST on November 22.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...

Partly to mostly cloudy today. It will be breezy at times through
the day as a weak upper level disturbance moves through the area.
Although a very brief rain or snow shower can not be ruled
out today, any amounts would be very light and more than likely
conditions should remain dry. Mainly dry conditions are expected
tonight through Thanksgiving before another chance of showers
arrives on Thursday night, mainly after midnight.

...Thunderstorms imply strong gusty and erratic winds...
...Haines index is high level haines both day and night...

FORECASTER...Hattings

.REST OF TODAY...

Sky/weather.........Mostly cloudy (65-75 percent).
Max temperature.....Around 50.
Min humidity........50-55 percent.
20-foot winds.......Northwest winds 10 to 20 mph with gusts to
                    around 30 mph.
Ridge top winds.....West 20 to 30 mph.
LAL.................No Tstms.
Chc of wetting rain.Zero percent.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.
Mixing height.......500-1500 ft AGL.
Transport winds.....West 20 to 30 mph.
Smoke dispersal.....Fair.

.TONIGHT...

Sky/weather.........Mostly cloudy (55-65 percent) then becoming
                    partly cloudy (40-50 percent).
Min temperature.....34-38.
Max humidity........85-90 percent.
20-foot winds.......West winds 10 to 15 mph and gusty.
Ridge top winds.....West around 15 mph.
LAL.................No Tstms.
Chc of wetting rain.Zero percent.
Haines Index........4 or low potential for large plume dominated
                    fire growth.
Mixing height.......500 FT AGL.
Transport winds.....Southwest 10 to 20 mph.
Smoke dispersal.....Poor.

.THANKSGIVING DAY...

Sky/weather.........Partly cloudy (35-45 percent).
Max temperature.....Around 50.
Min humidity........50-55 percent.
20-foot winds.......West winds 10 to 20 mph with gusts to around 30
                    mph.
Ridge top winds.....West around 20 mph.
LAL.................No Tstms.
Chc of wetting rain.Zero percent.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.
Mixing height.......500 FT AGL until 1200, then 800 ft AGL.
Transport winds.....Southwest 15 to 25 mph.
Smoke dispersal.....Poor to fair.

.FORECAST DAYS 3 THROUGH 5...
.THURSDAY NIGHT...
Partly cloudy. Isolated showers after midnight. Lows in the mid
30s. West winds around 14 mph.
.FRIDAY...
Partly cloudy. Lows in the mid 30s. Highs in the lower 40s. West
winds around 12 mph.
.SATURDAY...
Partly cloudy. Lows in the upper 20s. Highs in the lower 40s.
West winds around 10 mph.
.SUNDAY...
Partly cloudy. Lows in the lower 30s. Highs in the upper 40s.
Southwest winds around 11 mph.

$$
Forecaster...Hattings
Requested by...Mitch Brauneis
Type of request...PRESCRIBED
.TAG 1719087.0/RIW
.EMAIL mbrauneis@fs.fed.us



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