Area Forecast Discussion
Issued by NWS Pocatello, ID
FXUS65 KPIH 262034
Area Forecast Discussion
National Weather Service Pocatello ID
134 PM MST Sat Nov 26 2016
.SHORT TERM...Tonight through Tuesday. Models fairly similar
handling the west coast trof over the next few days. A minor wave
is ejected tonight which is expected to produce light precip over
the area this evening. Precip becomes more widespread in the
eastern highlands toward morning...where 1 to 2 inches of snow may
accumulate by sunrise. The upper trof moves inland on Sun...but
remains disorganized. Light snow will cover much of the area thru
Sun eve...with up to 4 inches possible in the eastern highlands.
The Snake River Plain may see up to an inch of snow thru Sun night
...with much probably melting during the day. Another upper wave
enters the picture from the NW Sun night. This system is more
energetic with widespread snow expected by Mon morn...along with
colder temps. Up to 4 inches of snow may fall in the eastern
highlands...with up to 3 inches over the rest of the mtn areas.
The Snake River Plain may see 1 to 2 inches of snow...with less in
the eastern Magic Valley. Southwest winds are expected to become
strong on Mon as the upper system moves thru.
Precip tapers off to scattered snow showers Mon night...mainly
over the mtns. Snow showers are expected to continue in the mtns
thru Tue...with little accumulation. Hedges
.LONG TERM...Tuesday night through Saturday.
System in the middle of the week continues to weaken and slow down
on both European and GFS models. Wednesday now looks mainly dry
with only some light mountain snow showers while even Thursday looks
much drier now as well. Upper low weakens and drops south with
most snowfall looking very light. Kept in chance of snow showers
Wednesday through Thursday with more widespread activity Thursday
but significant amounts looking very unlikely right now. Should be
mainly dry Friday into Saturday with upper level ridge building.
Temperatures should stay cold and remain near or slightly below
seasonal normal for late November and early December.
.AVIATION...First wave from approaching Pacific system will spread lower
ceilings and some light snow into the region. For now only went
with snow and MVFR ceilings at DIJ overnight into Sunday morning.
Lowered ceilings at all other sites tonight but kept at VFR levels
and only have VCSH. Would not be shocked to see a shower at any
site but most likely at Driggs. Expect more widespread snow
showers and MVFR and IFR ceilings on Monday.