196
FXUS65 KPIH 252252
AFDPIH

Area Forecast Discussion
National Weather Service Pocatello ID
452 PM MDT Fri Sep 25 2026

.KEY MESSAGES...

- Breezy to windy into tonight followed by cooler weather this
  weekend.

- Isolated showers and storms Sunday and Monday, favoring the
  eastern mountains and central mountains.

&&

.DISCUSSION...
Issued at 153 PM MDT Fri Sep 25 2026

Satellite imagery shows upper low centered over Washington this
afternoon, with deep S-SW flow in place over East Idaho. Breezy
winds still developing across the region today, strongest at
higher elevations across the central mountains, and expected to
continue tonight as the associated frontal boundary passes
through the region. Moisture may shifts close enough to provide
light showers across portions of the Frank Church, but otherwise
dry conditions are expected to continue. Much cooler
temperatures arrive behind the front, with daytime highs in the
60s for most lower elevation areas, though a few locations along
the Utah border may still reach into the 70s. The next system
moves inland Sunday, bringing mainly isolated showers and
thunderstorms to higher elevation regions Sunday and Monday.
Ensemble means maintain shallow high pressure across Idaho
through most of the week, allowing temperatures to remain near
to slightly below normal through the week, despite a brief
rebound Sunday. There is potential for break down of the high by
the weekend, as the ensemble means bring a trough through the
region Friday into Saturday. The operational GFS is
significantly more pronounced with this feature than the
operational ECMWF.

&&

.AVIATION /00Z TAFS THROUGH 00Z SUNDAY/...
Issued at 452 PM MDT Fri Sep 25 2026

Cold front passage tonight will keep winds elevated a bit more than
usual during the overnight hours, still gusting to around 20 kts,
but no precipitation is expected with this front. Winds diminish a
bit around sunrise and afternoon gusts will return to around 20 kts
at IDA and DIJ. Cloud cover will also increase, but will remain in
the mid and upper levels, so VFR conditions will continue.

&&

.FIRE WEATHER...
Issued at 153 PM MDT Fri Sep 25 2026

The main impact for the next seven days will be strong winds today.
Gusts of 30 to 40 mph will be widespread in zones 475 and 476 with
20 to 30 mph gusts widespread in most all other zones. Look for
lingering 20 to 30 mph gusts Saturday, mainly in zone 410 with much
lighter winds elsewhere. Look for a chance of showers and
thunderstorms Sunday and Monday, mainly in higher elevations. Dry
conditions with non-significant winds are expected next Tuesday
through next Friday. Today will be the warmest of the next seven
days and around 10 degrees above average, with low 80s expected for
valleys for daytime highs. Temperatures will slightly above average
this weekend before dropping to near average for the majority of
next week.

&&

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

&&

$$

DISCUSSION...DMH
AVIATION...AMM
FIRE WEATHER...TW