Area Forecast Discussion
Issued by NWS Pocatello, ID

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257
FXUS65 KPIH 182018
AFDPIH

Area Forecast Discussion
National Weather Service Pocatello ID
218 PM MDT Sun Jun 18 2017

.SHORT TERM...Mostly clear tonight and Monday under a ridge of
high pressure. Models continue to show a minor disturbance coming
up the west side of high pressure centered over the desert
southwest Monday night into Tuesday and just ahead of an
approaching disturbance off the Pacific. Isolated afternoon
thunderstorms are in the forecast for the mountains, best chance
will be the Upper snake Highlands. RS

.LONG TERM...Wednesday night through next Sunday. Thursday and
Friday upper level ridging starts to build in which will bring
dry Northwesterly flow across the area. Both models the last two
runs are now showing a back door upper level trough dropping over
the Montana divide on Friday bringing mainly breezy to moderate
winds across the area. This system will have little moisture. Thus,
just expecting a slight chance of showers and thunderstorms mainly
across the Montana divide across our extreme Northeast corner.
Expect daytime temperatures to be near normal through the period.
Evening lows will be below normal over the weekend particularly for
our Northern areas. Wyatt

&&

.AVIATION...VFR Conditions expected the next couple of days. Look
for slightly breezy winds briefly this afternoon with scattered mid
level clouds. Wyatt
&&

.Hydrology...Warming temperatures the next couple of days will lead
to some additional melting and run off of high elevation snow that
will find it`s way into local stream and rivers. Some local increase
in river levels is expected. Otherwise, water receding and or drying
up is slow, but making progress. RS
&&

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

&&

$$



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