767
FXUS65 KPIH 192024
AFDPIH

Area Forecast Discussion
National Weather Service Pocatello ID
124 PM MST Wed Nov 19 2025

.KEY MESSAGES...

- No high impact systems expected through the weekend but some
  isolated showers will be possible each day.

- Temperatures to remain at or slightly above climatological
  norms through next week. Becoming cooler as we start to approach
  Thanksgiving.

&&

.SHORT TERM /THROUGH THURSDAY NIGHT/...
Issued at 121 PM MST Wed Nov 19 2025

Afternoon satellite imagery shows quite a bit of clearing
across the Snake Plain and Magic Valley this afternoon. Temps
have warmed nicely into the 50s where we`ve seen these breaks in
cloud cover which is about 10 degrees above seasonal norms.
Areas with continued cloud cover, namely the SE corner of the
region and into the central mountains, temps remain mainly in
the 40s still. Radar returns are showing some light showers
across these areas as well with snow levels continuing to run
around 7000 ft leaving any winter weather impacts to the highest
terrain and mountain passes. As we move through the rest of the
day, hi-res CAMs all show the potential for continued
isolated/scattered showers just about anywhere through sunrise
Thursday but no strong signal on any one specific area. That
being said, most places likely won`t see any precip at all and
those that do, wont see much of it given this messy upper-level
pattern and the lack of deep moisture. As has been the case for
much of this month, lows tonight will remain on the warmer side
of normal overnight and into Thu morning. Not much changes
tomorrow, with more of the same and a weak upper level pattern.
CAMs keep any precip potential generally isolated at best and
focused across southernmost areas from the Snake Plain down
towards the Utah border once we get into the afternoon and
evening hours tomorrow. Temps look very similar to today, once
again.

&&

.LONG TERM /FRIDAY THROUGH TUESDAY/...
Issued at 121 PM MST Wed Nov 19 2025

No major changes in the long term forecast at this point. By
Friday, an area of low pressure will be situated over southern
California. For us, this will mean a few isolated showers
lingering in the Eastern Highlands, but generally dry conditions
and highs in the 40s. Weak ridging moves into Eastern Idaho for
the weekend and temperatures warm just a couple of degrees each
afternoon, putting us back to near 50 degrees by Monday
afternoon ahead of a cold front. This front will pass through
the area late Monday into Tuesday and bring about a 30 to 40
percent chance for precipitation to the mountains and cooler air
for all. This will drop our highs from 40s and low 50s on
Monday to mid 30s and low 40s on Tuesday. Look for winds to pick
up with this frontal passage with gusts around 20-30 mph.

&&

.AVIATION /18Z TAFS THROUGH 18Z THURSDAY/...
Issued at 1024 AM MST Wed Nov 19 2025

Pesky fog is slowly moving out of KBYI, but will keep MVFR CIGs
until 19Z. A low will drop south along the West Coast today and
tomorrow which is bringing increasing showery activity to
Eastern Idaho, though it`s not a slam dunk for showers at every
TAF site. As such, have added PROB30 to KSUN, KPIH, and KIDA for
this afternoon and early tonight. Also changed the TEMPO at
KDIJ to predominantly -RASN instead for this evening where at
least MVFR conditions are expected. If the -RASN switches over
to mostly -SN there, IFR conditions will become more likely.
Expect another round of showers at KSUN tomorrow and near KBYI
which could impact CIGs and VIS again.iscussion here.

&&

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

&&

$$

SHORT TERM...McKaughan
LONG TERM...AMM
AVIATION...AMM