Area Forecast Discussion
Issued by NWS Pocatello, ID

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268
FXUS65 KPIH 301957
AFDPIH

Area Forecast Discussion
National Weather Service Pocatello ID
157 PM MDT Sun Apr 30 2017

.SHORT TERM...Tonight through Tuesday Night.

A weak front will move through the region tonight. Showers will
remain possible, mainly for the high country during the evening.
Expect breezy conditions for a time late this afternoon and this
evening, but winds should weaken somewhat by midnight. Another weak
system will produce a few showers for the high country once again
Monday afternoon through Tuesday although coverage and amounts is
not impressive. Snow levels will remain high, near or above 7000
feet.

Valle

.LONG TERM...Wednesday through Sunday night. Models continue in fair
agreement with established upper ridge over the Western US with
amplification of the ridge through the rest of the week. Differences
lie with the development of an upstream cutoff low. Recent GFS runs
have progressed the upper low into the Great Basin while the ECMWF
runs dig it deeper off the California coast. Plenty of uncertainty
to chew on for next weekend`s forecast, so no major changes are
warranted. Otherwise, expect dry and warm conditions Wednesday
through Friday with some guidance pushing us in the 80s across the
Snake Plain. The warm temperatures will help accelerate high-
elevation snowmelt, leading to high flows in area rivers and
streams. Hinsberger

&&

.AVIATION...No major deviations from previous set of terminal
forecasts. Radar showing mostly mid-level returns with greatest
chances of showers at KDIJ and KIDA. Breezy conditions otherwise
across the region influenced by an upper wave. Hinsberger

&&

.HYDROLOGY...Flood warning continues for the Portneuf at Pocatello
and will remain in effect for quite some time. The forecast is for
the river to remain relatively steady. Flood advisory will continue
for the the Bear River in Bear Lake county from Montpelier to the
border. Minor flooding continues along the Bear River in these
areas.

Valle

&&

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

$$



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