Area Forecast Discussion
Issued by NWS Pocatello, ID

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FXUS65 KPIH 210930
AFDPIH

Area Forecast Discussion
National Weather Service Pocatello ID
330 AM MDT Mon Sep 21 2020

.DISCUSSION...
Warming trend begins today as high pressure builds over eastern
Idaho. Not expecting much in the way of cloud cover as high
temperatures in the lower 80s are expected across the Magic Valley
and lower Snake Plain with mid to upper 70s across upper Snake and
highlands. Weak system moving by the region on Tuesday looks to
increase winds a tad and perhaps bring some low-end PoPs across the
eastern Highlands but models have been trending down with PoPs over
the past few runs. Wednesday and Thursday look mostly clear and dry
as well although winds may begin to pick up a bit, especially
Thursday ahead of the next system moving into the Pacific NW. Models
now in better agreement with this system in regards to timing and
impact. The weak shortwave will help enhance shower activity a bit
across the central mountains and eastern Highlands but much of the
Snake Plain and Magic Valley looks fairly dry for the moment.
Temperatures look to cool a bit Friday and into Saturday as upper-
level swings through the region. This looks to be short-lived once
again though as models suggest ridging becomes established again
into next week allowing temps to return to above normal once again.
McKaughan


&&

.AVIATION...
Look for VFR conditions and light winds today. May see winds pick
up Tuesday afternoon with a weak system passing through the
region.

13

&&

.FIRE WEATHER...
Winds and humidity should remain above critical levels through
mid week. There is a weak system that will pass through the region
on Tuesday. This will create some breezy conditions in the
afternoon and an isolated thunderstorm is possible over the
eastern highlands. But, once again, expect conditions to remain
above critical levels.

13

&&

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

$$


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