Area Forecast Discussion
Issued by NWS Pocatello, ID

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FXUS65 KPIH 121953

Area Forecast Discussion
National Weather Service Pocatello ID
153 PM MDT Thu Oct 12 2017

.SHORT TERM...Tonight through Saturday. A couple of shortwaves are
making their way around a modest upper trough over the West. The
first will drop into WA/OR tonight, bringing snowshowers to the
Central Mountains. A second, more vigorous, shortwave will drop
into the area from the north Friday night, which will swing the
upper trough axis through Idaho. Models keep total QPF at 0.6
inches or less in the Central Mountains, up to 0.2 inches in the
Southeast and South Central Highlands, and 0.05 inches in the
Snake Plain. Snow amounts will be around 5 to 8 inches in the
Central Mountains--most of that falling tomorrow morning. We can
also expect breezy conditions tomorrow across the Snake Plain as
the first shortwave moves across the region. Winds 25 to 30 mph
are possible over the Arco Desert, but overall should be just shy
of advisory level. Hinsberger

.LONG TERM...Saturday night through next Thursday. The Sunday
through Thursday time frame will feature a significant warming
trend with temperatures rising above normal by Monday through
Wednesday. A moderate to strong Pacific storm will start to push
into the area on Thursday with mountain snow showers and valley
rain along with windy conditions and cooling temperatures. VP


.AVIATION...winds from exiting storm this afternoon remain gusty
across the region, while VFR conditions prevail. A Pacific storm
system is expected to dig SSE into Washington and Oregon this
evening with the leading edge of the attending precipitation field
spreading into central Idaho late tonight. MVFR CIGS and -SN are
possible at KSUN by 0600 MDT Friday while the remaining terminals
will likely see lowering VFR CIGS after midnight tonight with the
main impact of the advancing trough coming Friday afternoon and
night. VP/MH



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