003
FXUS65 KPIH 290819
AFDPIH

Area Forecast Discussion
National Weather Service Pocatello ID
219 AM MDT Tue Sep 29 2026

.KEY MESSAGES...

- Seasonable Temperatures Early This Week: High temperatures
  today and Wednesday will hover near seasonal averages,
  reaching the upper 60s to lower 70s across lower elevations.

- Unseasonably Warm Early October: Upper-level ridging builds
  over the Intermountain West starting Thursday, bringing high
  confidence in dry weather and temperatures 7 to 10 degrees
  above normal (mid-to-upper 70s, with localized spots touching
  80F).

&&

.DISCUSSION...
Issued at 214 AM MDT Tue Sep 29 2026

High pressure will build in from the west beginning today and remain
 in control of the pattern through the first part of next week. 500
mb ensemble clusters solidly support this upper-level pattern during
this timeframe. This will mean dry conditions for the next week at
least and gradual warming. Temperatures will run near climatological
normal over the next couple of days before warming several degrees
above normal on Thursday. Another several degree warm up on Friday
will mean daytime highs nearing 10 degrees above average with some
locations reaching 80 degrees, lasting into the first part of next
week.

&&

.AVIATION /06Z TAFS THROUGH 06Z WEDNESDAY/...
Issued at 950 PM MDT Mon Sep 28 2026

Winds have gone light in many areas for the night. Will probably
see up to 10kts overnight and into Tuesday at PIH/BYI. Showers
are continuing to weaken as the evening goes on and anticipate
clear or mostly clear skies for overnight.

&&

.FIRE WEATHER...
Issued at 214 AM MDT Tue Sep 29 2026

High pressure will build in from the west beginning today and remain
 in control of the pattern through the first part of next week. This
will mean dry conditions for the next week at least and gradual
warming. Temperatures will run near climatological normal over
the next couple of days before warming several degrees above
normal on Thursday. Another several degree warm up on Friday
will mean daytime highs nearing 10 degrees above average with
some locations reaching 80 degrees, lasting into the first part
of next week. Minimum humidity is forecast to remain above 15
percent through the duration of the forecast period and winds
generally light outside of occasional breezy afternoon wind
gusts.

&&

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

&&

$$

DISCUSSION...Cropp
AVIATION...13
FIRE WEATHER...Cropp