Area Forecast Discussion
Issued by NWS Riverton, WY

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922
FXUS65 KRIW 140956
AFDRIW

Area Forecast Discussion
National Weather Service Riverton WY
256 AM MST Sat Jan 14 2017

.SHORT TERM...Saturday through Monday night

The forecast for the next few days reminds me of the early 1970s
soul song by the Dramatics, What You See is What You Get. All in
all, that is what will happen as mainly dry northwest flow
continues through the first part of next week. The result will be
dry conditions along with near normal to chilly temperatures but
nothing unusual for the middle of January. There could be a bit of
a breeze in the favored areas at times, mainly near Clark and
around Casper, but certainly no high wind.

The big problem for the next couple of nights will be the dreaded
fog monster. There were areas of fog last night and with light winds
and ample moisture from the snow around we will keep the chance
around. Continuity had this covered fairly well so we made few
changes.

.LONG TERM...Tuesday through Saturday

Tuesday will be dry over the area with windy conditions in the
wind corridor from Muddy Gap to Casper. Wednesday will be dry
for much of the area. Windy areas in the usual wind corridor of
Central WY. Areas of light snow may develop late in the day in
the far west mountains. A trough develops over the Western U.S.
Wednesday night and this trough hangs around through Saturday. A
series of weather disturbances will swing through this trough and
bring some chances of precip. The first batch of snow hits the
west and southwest Wednesday night through Thursday night. Might
even see some rain in the southern zones Wed night before changing
to snow Thurs morning. East of the continental divide, the precip
will be more scattered in nature on Thursday and Thurs night.
Lingering light snow in the mountains and far west valleys on Fri
with mostly dry weather in the lower elevations. Next Saturday
could see another chance of light snow in the west and southwest
if model timing holds up that far out. Temps will be seasonal Tue
and Wed, then cooler highs Thurs through Saturday.

&&

.AVIATION.../12Z ISSUANCE/

The Rock Springs terminal will likely observe IFR/LIFR conditions in
low stratus and/or fog through the morning hours with airfield
minimums a good possibility. Elsewhere some fog will occur in the
valleys this morning, but confidence is not high enough to prevail
them at any terminal. Confidence is also low on timing of improving
conditions at Rock Springs Airport, but will go for around midday
before possibly going back down in fog in the early evening. Winds
will be mainly light across the entire area through the period.&&

.FIRE WEATHER...

Fire Danger low for all of WY through, at least, the weekend. Cold
seasonal temperatures, good existing snow pack, and relatively light
to moderate winds will characterize the next several days. Smoke
dispersion will also remain poor for all locations through the
weekend with inversions in the basins and valleys.

&&

.RIW WATCHES/WARNINGS/ADVISORIES...None.

&&

$$

SHORT TERM...Hattings
LONG TERM...AR
AVIATION...WM
FIRE WEATHER...Hattings



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