Area Forecast Discussion
Issued by NWS Pocatello, ID

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000
FXUS65 KPIH 121021
AFDPIH

Area Forecast Discussion
National Weather Service Pocatello ID
321 AM MST Fri Jan 12 2018

.SHORT TERM...Today through Sunday...Snow showers are noted
across the Teton Valley, Pine Creek Pass and in other portions of
the Caribou and Eastern Highlands overnight. Light snow showers
are expected to linger over these areas early this morning before
dissipating with minimal additional snow totals of less than 1
inch at most. As the snow is expected to dissipate earlier than
anticipated, we will expire the advisory early. Strong wind gusts
were noted along I-84 and in Cassia County including a 68 mph
wind gust at the Cotton Ridge monitoring station at ~7500ft.
Overall though, winds have been below criteria thresholds of
sustained 30 mph; therefore we will let the advisory expire. Do
expect breezy conditions to continue today though as these
southwesterly winds do not quite let up until later tonight. A
more diurnal trend to winds is then anticipated for your weekend.
Weak high pressure is expected to build in for the weekend with
little chance for additional precipitation. Temperatures are
expected to drop slightly into the low 40s in the southern Snake
Plain/Magic Valley areas and upper 30s for the upper Snake
Plain/upper Highland areas.

Peterson/Valle

.LONG TERM...Monday through Friday.

Monday continues to look dry and warm. Models continue to show next
system arriving Tuesday afternoon, overspreading the area Tuesday
night, exiting the region on Wednesday. This system might be cold
enough for all snow with some rain mixing in across the Snake Plain
into the Magic Valley. Looks like another moist system as well.
Models then diverge as the overall pattern will transition to a
large low pressure system moving into the Pacific Northwest for mid
to late week. GFS has been more aggressive with pushing
precipitation into the region on Thursday into Friday, while the
European remains slower, not bringing precipitation into the region
until late Thursday night. When the precipitation does arrive,
looks like another wet system with potential for healthy snows
across the high country.

Valle

&&

.AVIATION...Expect improving conditions today for most areas as the
storm system departs the area. Could see some lingering snow showers
around SUN and DIJ. Low ceilings are possible in many places because
there is quite a bit of moisture running around. However, gusty
winds will continue today, which may prevent those low ceilings from
developing.

Valle

&&

.PIH WATCHES/WARNINGS/ADVISORIES...
None.

&&

$$



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