Area Forecast Discussion
Issued by NWS Pocatello, ID

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FXUS65 KPIH 010239 AAA

Area Forecast Discussion...UPDATED
National Weather Service Pocatello ID
839 PM MDT FRI SEP 30 2016

.UPDATE...We are updating to account for better coverage of
showers and isolated storms farther north and east. The latest
trends brings precipitation farther north into the central
mountains and toward Monida, while also bring it closer to I-15
across the Snake Plain and I-84 toward the Utah border. We could
still see locally heavy rainfall with the potential for some cells
producing around 0.10". We also tweaked cloud and wind grids to
match.  Keyes


.PREV DISCUSSION... /issued 250pm MDT FRI SEP 30 2016/

SHORT TERM...Tonight through Sunday...Several shortwaves will
rotate around an upper-level low off the Pacific Coast through
Sunday. Showers and embedded thunderstorms expected tonight as the
first wave enters Montana. Gusty winds and small hail expected in
these storms. On Saturday, a band of precipitation will move from
the Central Mountains in the morning, to the Eastern Highlands by
evening. Winds will become breezy by the afternoon, especially
behind this band of precipitation. Another wave will move
northward across area on Sunday, bringing another round of showers
to most areas, with some isolated thunderstorms.

LONG TERM...Monday through Friday...A strong closed low will
track across the forecast area on Monday and into Wyoming by late
Tuesday. This will bring widespread precipitation to the area on
Monday, tapering off from the west by late Tuesday. Temperatures
will be well below normal, and snow levels will drop to about
6500 feet. Drier conditions move in for Wed-Thu, and temperatures
rebound to near normal, but another storm system will approach
from the west by Friday.

AVIATION...Mostly VFR, with isolated thunderstorms through about
03Z. Another band of showers will move from near KSUN early
Saturday morning, to near KDIJ by afternoon, with isolated
thunderstorms again in the afternoon. Breezy southwest winds 15-25
kts in the Snake Plain during the afternoon.


.PIH Watches/Warnings/Advisories...

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