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fxus65 kpih 241953 
afdpih

Area forecast discussion
National Weather Service Pocatello Idaho
153 PM MDT Wed may 24 2017

Short term...strong winds in the snake plain will diminish this
evening between 8 and 9 PM MDT with setting sun and decreasing
surface pressure gradient. Cold air and moisture moving south from
British Columbia will drop into Idaho tonight and Thursday to
lower afternoon temperatures about 7 to 10 degrees and bring some
scattered showers over the central mountains and upper snake
Highlands. Snow levels only dip to around 7800 feet elevation.
This trough remains over southeastern Idaho on Friday before
finally moving off to the east Saturday. Receiver station

Long term...Saturday night through Wednesday. GFS and European model (ecmwf)
ensembles give high confidence in established upper ridge in the
long-term period. The ridge axis should stay over Washington/or, leaving
Idaho in a broad northwesterly wind aloft. Dynamics for large-scale
ascent is lacking, but deterministic models persist in generating
showers and thunderstorms owing to diurnal heating and orographic
lift. Temperatures will edge upward through the period with highs
starting in the mid 70s across the snake plain on Sunday, to the mid
80s by Wednesday. Hinsberger

&&

Aviation...dry cold front moving through the area will keep wind
gusts around 35 to 45 kts across the snake plain this afternoon and
early evening. Given the dry nature of the front and the time of
year, areas of blowing dust may bring lowered visibility to kida and
kpih. We have high confidence in the strong winds today, lower
confidence in the areal extent, intensity, and duration of the
blowing dust. Opted to put the MVFR visibilities in a tempo group
for this afternoon rather than predominant. Hinsberger

&&

Hydrology...temperatures will play a roll in snow melt and
runoff the next week or or more. Cooler temperatures Thursday and
Friday will help slow the melting, but by Saturday temperatures
begin a warming trend. A high pressure ridge expected to move
inland early next week will bring additional warming. Rain showers
over the mountains the next two days will add some new snow to
the upper peaks and rain on mid and lower slopes. Receiver station



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