Suppression Forecast
Issued by NWS Riverton, WY

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FNUS75 KRIW 281850
FWSRIW

Spot Forecast for Lousy George...BLM
National Weather Service Riverton WY
1250 PM MDT Fri Apr 28 2017

Forecast is based on ignition time of 1300 MDT on April 28.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...A low pressure system will be tracking south from southeast
Wyoming to Colorado through tonight. This weather system will be producing
snowfall through 8 pm this evening, before tapering off to periods of
lighter snow or flurries. A wind shift will occur this afternoon from west to
northeast at 1400. Light snow or flurries will continue through 0900
Saturday morning. Expect cool conditions with a brisk northeast wind for
the rest of Saturday.

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

FORECASTER...Lipson

.REST OF TODAY...

Sky/weather.........Cloudy (90-100 percent). Snow early in the
                    afternoon, then snow likely late in the
                    afternoon, with the heaviest snowfall
                    expected from 1400 through 1700.
Max temperature.....32-35.
Min humidity........57-60 percent.
20-foot winds.......West winds 15 to 25 mph with gusts to
                    around 35 mph, shifting to east northeast at
                    25 to 35 mph with gusts to 45 mph by 1400.
Ridge top winds.....Same as 20 foot winds.
LAL.................No Tstms.
Chc of wetting rain.54 percent.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.
Mixing height.......4000 ft AGL.
Transport winds.....Northwest 23 to 28 mph.
Smoke dispersal.....Excellent.

.TONIGHT...

Sky/weather.........Cloudy (80-90 percent). Chance of mainly light.                 0900.
Min temperature.....20-23.
Max humidity........91-94 percent.
20-foot winds.......East northeast winds 20 to 30 mph with gusts to
                    around 40 mph.
Ridge top winds.....Northeast 20 to 30 mph with gusts to 40 mph.
LAL.................No Tstms.
Chc of wetting rain.4 percent.
Haines Index........3 or very low potential for large plume
                    dominated fire growth.
Mixing height.......1700-2200 ft AGL.
Transport winds.....Northeast 23 to 26 mph.
Smoke dispersal.....Good.

.SATURDAY...

Sky/weather.........Mostly cloudy (65-75 percent) then becoming
                    partly cloudy (55-65 percent). Isolated snow
                    showers in the morning until 0900.
Max temperature.....Around 40.
Min humidity........49-52 percent.
20-foot winds.......East northeast winds 12 to 14 mph with gusts to
                    around 25 mph.
Ridge top winds.....Northeast 20 to 25 mph.
LAL.................No Tstms.
Chc of wetting rain.Less than 5 percent.
Haines Index........2 or very low potential for large plume
                    dominated fire growth.
Mixing height.......4000 ft AGL until 1200, then 6100 ft AGL.
Transport winds.....Northeast 21 to 23 mph.
Smoke dispersal.....Excellent.

.FORECAST DAYS 3 THROUGH 5...
.SATURDAY NIGHT...
Mostly clear. Lows in the mid 20s. Winds generally less than
10 mph.
.SUNDAY...
Partly cloudy. Lows in the mid 20s. Highs in the upper 40s. West
winds around 13 mph.
.MONDAY...
Partly cloudy with slight chance of snow showers. Lows in the
lower 30s. Highs in the upper 40s. West winds around 12 mph.
.TUESDAY...
Partly cloudy. Chance of showers and snow showers. Lows in the
lower 30s. Highs in the mid 40s. Northwest winds around 10 mph.

$$
Forecaster...Lipson
Requested by...Gary Batchelder
Type of request...PRESCRIBED
.TAG 1707969.0/RIW
.EMAIL gbatchelder@blm.gov


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