Area Forecast Discussion
Issued by NWS Pocatello, ID

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FXUS65 KPIH 200742

Area Forecast Discussion
National Weather Service Pocatello ID
142 AM MDT THU OCT 20 2016

.SHORT TERM...Today through Saturday...Areas of early morning
freezing fog noted across the Upper Snake Highlands, including the
Island Park region and Osborne Bridge. Expect reduced
visibilities on roadways until this fog is able to dissipate by
mid-morning. Additional fog development is expected across the
Arco Desert and through the valleys of the Southern and Eastern
Highlands. For the rest of today, high pressure will bring drier,
warmer air into Southeast Idaho today with temperatures in the mid
to upper 50s across the Snake Plain. Mountain zones to remain in
the 40s but may near the 50 degree mark today.

High pressure continues Friday and Saturday, allowing for
continued warming temperatures into the 60s. Skies will generally
be partly cloudy or clear. NP/Valle

.LONG TERM...Sunday through Thursday.

Sunday continues to look dry ahead of a low pressure system that
will bring showers to the region for much of next week. Models
continue to show a large low pressure system setting up off the
Pacific Northwest coast. This will pump moisture into the region
although there are significant model differences from involving
timing and coverage of the showers. Forecast will continue to
mention slight chances of showers for the Magic Valley and Snake
Plain and chance of showers for central Idaho mountains and
southeast Idaho highlands given uncertainty. Snow levels are also
problematic, but continue to expect snow levels to be around 6500
feet as a rough estimate.



.AVIATION...High pressure will produce VFR conditions and light
winds today.



.PIH Watches/Warnings/Advisories...

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