Suppression Forecast
Issued by NWS Riverton, WY

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FNUS75 KRIW 210945
FWSRIW

Spot Forecast for Gilbert Meadow RX...U.S Forest Service
National Weather Service Riverton WY
245 AM MST Tue Nov 21 2017

Forecast is based on ignition time of 0500 MST on November 21.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...
Partly to mostly cloudy through Wednesday. Breezy at times mainly this
morning into midday before winds likely decrease some during the afternoon.
Mixing looks generally poor today with a brief window of fair possible
between 1100 and 1400L. Warmer Wednesday with better mixing (good) in
the afternoon.

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

FORECASTER...Skrbac

.TODAY...

Sky/weather.........Partly to Mostly cloudy today (55-75 percent).
Max temperature.....41-44.
Min humidity........60-65 percent.
20-foot winds.......West winds 10 to 12 mph with gusts to around 20
                    mph.
Ridge top winds.....Northwest 20 to 30 mph this morning then decreasing and
                    becoming West 10 to 15 mph by mid to late afternoon.
LAL.................No Tstms.
Chc of wetting rain.Zero percent.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.
Mixing height.......1200-2200 ft AGL.
Transport winds.....West 17 to 22 mph this morning, decreasing to 10 to 15 mph this
                    afternoon.
Smoke dispersal.....Poor to briefly fair around midday.

.TONIGHT...

Sky/weather.........Partly cloudy to mostly cloudy (55-75 percent).
Min temperature.....32-35.
Max humidity........85-88 percent.
20-foot winds.......Downslope/downvalley 4-7 mph becoming southwest
                    8 to 9 mph in the late evening and overnight.
                    Gusts up to 15 mph.
Ridge top winds.....Southwest around 15 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.
Transport winds.....Southwest 14 to 17 mph.
Smoke dispersal.....Poor.

.WEDNESDAY...

Sky/weather.........Mostly cloudy (55-65 percent) then becoming
                    partly cloudy (40-50 percent).
Max temperature.....50-53.
Min humidity........51-54 percent.
20-foot winds.......Upslope/upvalley 5-9 mph.
Ridge top winds.....West around 15 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 3200 ft AGL.
Transport winds.....West 17 to 23 mph increasing to 21 to 29 mph in
                    the afternoon.
Smoke dispersal.....Poor increasing to good in the afternoon.

.FORECAST DAYS 3 THROUGH 5...
.WEDNESDAY NIGHT...
Mostly clear. Lows in the lower 30s. Winds generally less than
10 mph.
.THANKSGIVING DAY...
Partly cloudy. Lows in the lower 30s. Highs in the mid 50s. Winds
generally less than 10 mph.
.FRIDAY...
Partly cloudy. Lows in the mid 30s. Highs in the upper 40s. Winds
generally less than 10 mph.
.SATURDAY...
Partly cloudy. Lows around 30. Highs in the lower 50s. Winds
generally less than 10 mph.

$$
Forecaster...Skrbac
Requested by...Maggie Dalene
Type of request...PRESCRIBED
.TAG 1719047.0/RIW
.EMAIL maggiedalene@fs.fed.us



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