Suppression Forecast
Issued by NWS Riverton, WY

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000
FNUS75 KRIW 220324
FWSRIW

Spot Forecast for Willow...BLM
National Weather Service Riverton WY
924 PM MDT Fri Jul 21 2017

Forecast is based on request time of 2100 MDT on July 21.
If conditions become unrepresentative...contact the National Weather
Service.

.DISCUSSION...

A few clouds possible by Saturday morning as the result of
monsoonal moisture spilling over from Colorado and southern
Wyoming. Upper level ridging and slowly increasing high
pressure at the surface will keep the atmosphere generally
stable with relatively light winds (northerly to northeasterly)
at/near the surface when fully mixed out and not dominated by
thermal downslope or upslope winds early or late in the day.
Next significant chance for rainfall (better than isolated or
slight chance) will not arrive until later Tuesday through
Wednesday morning. Monday afternoon may see a few stronger
wind gusts out of the north or northeast (occasional 15 to
20 mph) as a seasonally weak back door dry front moves into
and through the forecast area.

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

FORECASTER...Braun

.TONIGHT...

Sky/weather.........Mostly clear (10-25 percent).
Min temperature.....55-60.
Max humidity........55-60 percent.
20-foot winds.......Downslope/downvalley 4-7 mph. Gusts up to 15
                    mph after midnight.
Ridge top winds.....North 5 to 10 mph.
LAL.................No Tstms.
Chc of wetting rain.Zero percent.
Haines Index........4 or low potential for large plume dominated
                    fire growth.
Mixing height.......6400 ft AGL until 2400, then 600 ft AGL.
Transport winds.....North 9 to 15 mph.

.SATURDAY...

Sky/weather.........Partly cloudy (30-40 percent) early then becoming
                    mostly sunny (5-20 percent).
Max temperature.....Around 90.
Min humidity........10-15 percent.
20-foot winds.......Upslope/upvalley 5-9 mph.
Ridge top winds.....North 10 to 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.......2000 ft AGL until 1200, then 9800 ft AGL.
Transport winds.....North 12 to 18 mph.

.FORECAST DAYS 3 THROUGH 5...
.SATURDAY NIGHT...
Clear. Lows in the mid 50s. Winds generally less than 10 mph.
.SUNDAY...
Mostly clear to partly cloudy. Isolated showers and thunderstorms
possible in the evening. Lows in the mid 50s. Highs in the lower
90s. Winds generally less than 10 mph.
.MONDAY...
Partly cloudy. Lows in the upper 50s. Highs in the lower 90s.
Winds generally less than 10 mph.
.TUESDAY...
Partly cloudy. Isolated showers and thunderstorms. Lows in the
upper 50s. Highs in the upper 80s. Winds generally less than
10 mph.
.WEDNESDAY...
Partly cloudy with isolated showers and thunderstorms. Lows
around 60. Highs in the upper 80s. Winds generally less than
10 mph.

$$
Forecaster...Braun
Requested by...Willow Fire
Type of request...WILDFIRE
.TAG 1713150.0/RIW
.EMAIL Casper_Dispatch@yahoo.com



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