402
FXUS65 KPIH 032209
AFDPIH

Area Forecast Discussion
National Weather Service Pocatello ID
309 PM MST Tue Nov 3 2026

.KEY MESSAGES...

- Weak low moving through Utah will bring weak threat of
  precipitation in the southern parts of the forecast area on
  Wednesday.

- A second weak low moving through the Idaho panhandle on
  Thursday brings a weak threat of precipitation to the
  forecast area on Thursday-Thursday Night.

- Expect temperatures in the 40s and 50s through most of the
  week. Temperatures start to rise slightly and hit 50s and 60s
  by Saturday under high pressure.

&&

.DISCUSSION...
Issued at 1231 PM MST Tue Nov 3 2026

Currently there is weak high pressure over our area with clouds
starting to move over our area in southwest flow from an upper
level low located currently over northern California.

Models show the low over northern California weakening and
moving over central Utah giving our southern areas a slight
chance of showers later Wednesday. Little, if any, precipitation
is currently expected. Temperatures Wednesday warm slightly
compared to Tuesday with highs in the mid 40s to mid 50s.

By Thursday, an upper level low will move over northern Idaho.
Expect slightly breezy winds and just a slight chance of
precipitation, especially across the Wyoming border. Temperatures
drop slightly Thursday with temperatures in the low 40s to low
50s.

Expect patchy fog Wednesday morning and, especially, Thursday
and Friday mornings, particularly near water sources.

Expect a warm up Friday into Saturday under high pressure. Look
for Saturday high temperatures in the low 50s and low 60s.

&&

.AVIATION /00Z TAFS THROUGH 00Z WEDNESDAY/...
Issued at 305 PM MST Tue Nov 3 2026

We will see an increase in clouds as a low shifts east close to
the Utah border in the next 24 hours. We will see lower clouds
and flirting with MVFR conditions at times except at DIJ. The
current trend is for fog, or at least patchy enough that it will
not be mentioned at any TAF site. Given the drier air in place
and clouds moving in, which usually minimal or to no fog
development.

&&

.FIRE WEATHER...
Issued at 123 AM MST Tue Nov 3 2026

This will be the last discussion as Fire Season in Idaho has
ended for 2026 after two record-setting precipitation events
within two weeks of each other. Cool temperatures continue,
staying at or below 50 degrees F. Humidity at this temperature
will easily stay above 40 percent even in the afternoon.
Temperatures will warm up starting Sun, but only to around the
60 degree mark. There will be a low moving through UT on Wed
that will bring a slight chance threat to southern portions of
the Fire Weather District on Wed. A trough will move through the
Idaho panhandle and western Montana Thu/Thu night to produce
another slight chance threat of precipitation, but all of these
events bring very little in the way of wind. Just expect normal
gusty afternoons if the skies are clear, such as today and Fri.

Spot forecast requests can still be made online or through your
local dispatch as the situation requires. Questions can also be
answered through our YouTube video briefing, by using the point
and click map on our web page, or contacting National Weather
Service Pocatello at the telephone number in the 2026
mobilization guide.

&&

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

&&

$$

DISCUSSION...TW
AVIATION...Keyes
FIRE WEATHER...Messick