Area Forecast Discussion
Issued by NWS Pocatello, ID

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538
FXUS65 KPIH 091101
AFDPIH

Area Forecast Discussion
National Weather Service Pocatello ID
401 AM MST Fri Dec 9 2016

.SHORT TERM...Today through Sunday night.
Winter storm warnings remain in effect for the mountains. Will see
a bit of a break this morning with heavier precipitation returning
this afternoon through Saturday. Winter Weather advisories remain
in effect through this morning in the Snake River Plain and added
freezing rain this morning in the Burley area. Expect
precipitation to continue to taper off this morning and
temperatures to warm to near or above freezing in the Snake Plain
this afternoon. A cold front moves through Idaho Saturday
afternoon and expect the storm to wind down Saturday evening with
the heaviest precipitation ending. Much colder conditions return
Sunday with high temperatures back to near or below seasonal
normal for mid December. Snow showers will likely continue through
Sunday night but heavy amounts not expected but a few inches still
possible in the mountains.
GK

.LONG TERM...Monday through next Friday.  Both the GFS and ECMWF
models start in moist Northwest flow on Monday bringing light to
moderate mountain snow for the Western Central mountains and the
Eastern highlands before tapering off the snow by Tuesday.  On
Wednesday both models start to vary. The GFS model is much drier and
cooler Wednesday bringing in North Northwest flow. The ECMWF model
starts Wednesday with dry Northwest flow and then quickly brings in
moist Southwest flow by late Wednesday afternoon and continues this
through the end of the period. The GFS does not bring this system in
until Saturday. Have lowered temperatures slightly from Wednesday
through the end of the period and will keep climo pops until models
come more in line with each other. Wyatt

&&

.AVIATION...Precipitation will lessen and in some cases stop briefly
this morning before starting up again late this morning into the
afternoon. Most sites will improve to VFR or at least MVFR this
morning before dropping down to IFR/MVFR by late morning into the
afternoon. However, there is some indications that fog and low
stratus is possible particularly for Snake River plain and Eastern
Magic valley this morning. There is a chance of freezing rain for
KBYI and possibly KPIH until mid tomorrow afternoon. Expect breezy
to moderate winds from the South this afternoon into the evening.
Wyatt

&&

.PIH WATCHES/WARNINGS/ADVISORIES...
Winter Weather Advisory until 11 AM MST this morning for IDZ017-
020-021.

Winter Storm Warning until 5 PM MST Saturday for IDZ018-019-022-
023-025-031-032.

Winter Weather Advisory until 5 PM MST Saturday for IDZ024.

&&

$$



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