Area Forecast Discussion
Issued by NWS Pocatello, ID

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FXUS65 KPIH 281846

Area Forecast Discussion
National Weather Service Pocatello ID
1246 PM MDT SAT MAY 28 2016

.SHORT TERM...Tonight through Tuesday. Showers near the Divide
this aftn should dissipate by this eve as a weak upper trof
departs the area. Another upper trof moves into the Pac NW on Sun
and brings increasing chances for showers/isolated tstms to the
mtns Sun aftn and eve. The upper trof moves thru by Mon morn...
with only isold showers lingering near the Divide and in the
southeast corner. West to southwest winds pick up in the wake of
the upper trof by Mon aftn. Upper ridging builds into the west by
Tue...resulting in dry conditions. Hedges

.LONG TERM...Tue night through next Sat night. 500mb long wave
pattern indicates weak troughing remaining in the eastern Pacific
and very high 500mb heights over the Gem State. Expect very warm
temperatures due to all of this with little threat of precipitation.
The ECMWF guidance stays much drier with a very strong upper level
trough throughout. The GFS breaks down this ridge by Fri/Fri night
and brings some precipitation mainly to western and northern
portions of the forecast area.



.AVIATION...High pressure has built in for today and will keep skies
nearly clear. An approaching trough may bring mid-level CIGs to the
north, thus only affecting KIDA, during the morning hours Sunday,
before the trough sweeps through during the afternoon. Otherwise,
wind shift are about the only significant challenge in the forecast.


.PIH Watches/Warnings/Advisories...

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