Shelley, Idaho 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

571
FXUS65 KPIH 032050
AFDPIH

Area Forecast Discussion
National Weather Service Pocatello ID
150 PM MST Tue Dec 3 2024

.Discussion...Tonight through next Tuesday.
Rex blocking pattern continues to shift east across the
Intermountain West through Thursday. Temperatures remain warmer
than normal for the rest of the work week, with light winds, and
periods of high clouds. We are starting to have some confidence
with the blocking pattern weakening headed into the weekend,
despite some lingering ensemble cluster differences. Weak dry
shortwave crosses the PacNW Thursday night/Friday. This leads the
way for a Pacific low to reach Vancouver/Seattle late Saturday,
crossing Idaho through the day Sunday. The clusters and ensemble
means all support this scenario, just at different amplitudes and
slightly different timing. Light precip projected to spread
mainly across higher elevations Saturday, and increasing coverage
to lower elevations Saturday night through Sunday night. Despite
the mainly scattered PoPs, amounts still look quite low with
probabilistic data supporting only 4-6" of snowfall above 8000 ft
across portions of the central mountains. The trough digs into the
central plains Sunday night through Monday, leaving strong
northerly flow over the region for the early part of next week,
which should usher a return to near or slightly below normal
temperatures. Scenarios can obviously evolve over the coming
week, especially with the fluctuation we recently see in the
ensembles. DMH




&&

.AVIATION...VFR conditions continue with light mainly downvalley
winds. A few high clouds will cross the region late this afternoon
and tonight, with minimal to no impact. A few valley locations
have been seeing minimally impactful low stratus and light fog the
past few mornings, and will have to be monitored for inclusion at
terminals. DMH


&&

.PIH WATCHES/WARNINGS/ADVISORIES...
None.
&&

$$