Area Forecast Discussion
Issued by NWS Pocatello, ID
FXUS65 KPIH 100958
Area Forecast Discussion
National Weather Service Pocatello ID
258 AM MST Sat Dec 10 2016
.SHORT TERM...Today through Monday night.
Large area of precipitation over much of region. Has turned to
rain in much of SNake River Plain from Burley through Pocatello
and Blackfoot. Snow has turned to freezing rain at Idaho Falls and
have issued winter weather advisory this morning for potential of
icy roads. Winter Storm Warnings remain in effect for mountain
areas of southeast Idaho through this afternoon. Webcams still
showing snow covered roads throughout the higher elevations and
expect the snow to continue most of day before tapering off west
to east this afternoon. Snow showers expected to continue off and
on through Monday mainly in the mountains with only light
accumulations expected through the period. AFter somewhat mild
temperatures today expect a cool down behind a cold frontal
passage today with highs temperatures near normal or slightly
below both Sunday and Monday.
.LONG TERM...Tuesday through Saturday.
Extended forecast remains a bit tricky. Problem seems to be run to
run consistency. This morning`s runs show front stalled across
Central Utah Tuesday with another round of snow arriving, most
likely affecting extreme southern portions of East Idaho. Models
show a wave arriving either Wednesday or Wednesday night which will
help draw some of this moisture northward. Most if not all of this
moisture will fall in the form of light snow. However, there could
be just enough warm air around Preston for a mix to occur there.
This batch of snow should exit the region by Thursday with cold air
settling over the region for late week. There could be some light
snow late week as well associated with another wave arriving from
the northwest. Temperature forecast for Wednesday is a compromise of
previous forecast plus a blend of models from this morning. Given
the run to run consistency, the temp forecast especially will
probably have a lot of wag to it until the models stabilize some.
.AVIATION...A storm system will continue to bring a mixed bag of
precipitation types to the region Today. Expect a cold front to
arrive later this afternoon which should bring precipitation to an
end. Until then, expect a mix of ceilings. Visibilities will be
mainly reduced in areas where there are snow. Expect brisk
conditions as well, especially this afternoon as the front
Winter Storm Warning until 5 PM MST this afternoon for IDZ018-
Winter Weather Advisory until 11 AM MST this morning for IDZ020.
Winter Weather Advisory until 5 PM MST this afternoon for IDZ024.