394
FXUS65 KPIH 312305
AFDPIH

Area Forecast Discussion
National Weather Service Pocatello ID
505 PM MDT Fri Jul 31 2026

.KEY MESSAGES...

- Near-record heat expected Saturday, cooler Sunday. Heat Advisories
are in effect.

- Breezy to windy Saturday and Sunday combines with very low
humidity for dangerous fire weather conditions. Red Flag Warnings
are in effect.

- No precipitation expected through next Friday, August 7.

&&

.DISCUSSION...
Issued at 153 AM MDT Fri Jul 31 2026

High pressure has strengthened some more today, but on Sat a
very dry cold front is expected to move through Canada and
Montana Sat afternoon/evening. During the prefrontal period, the
increased southerly flow should bring in hot air and
temperatures are expected to soar to record or near-record
highs. The air should be extremely dry and there will be an end
to the spate of thunderstorms over the previous several days
after tonight.

Wind will be even stronger on Sun, but the cold air behind the
front will bring temperatures down into the 90s for most lower
elevations on Sun. For Mon and Tue, high temperatures should be
mainly in the 80s at lower elevations; however the low will have
continued its eastward movement and wind should decrease.

The rest of the work week, Wed through Fri, look dry with a
warming trend returning to morning lows and afternoon highs,
reaching the upper 90s by Thu or Fri. No precipitation is
expected during this time with the western states high shielding
central and eastern Idaho from both remnants of the southwest
monsoon and cold fronts moving in from the north or west.

&&

.AVIATION /00Z TAFS THROUGH 00Z SATURDAY/...
Issued at 504 PM MDT Fri Jul 31 2026

One more afternoon and evening of isolated to scattered showers and
isolated convection. Activity is primarily east of KIDA and KPIH,
impacting KDIJ. Storms have been capable of 40 to 50 mph outflows
and brief heavy rain. Skies will clear heading into the
overnight hours with breezy winds in store Saturday.

&&

.FIRE WEATHER...
Issued at 110 PM MDT Fri Jul 31 2026

Another round of isolated to scattered thunderstorms is expected
this afternoon. Gusty outflow winds along with brief heavy
downpours are likely with storms. Hot dry weather arrives for
Saturday. Low humidity and gusty winds are likely through the
weekend creating Red Flag conditions across much of the region.
Near critical to critical fire weather conditions appear likely
for much of the next week with little to no precipitation
expected and hot temperatures.

&&

.AIR QUALITY...
Issued at 1214 PM MDT Fri Jul 31 2026

All air quality advisories have been lifted by Idaho DEQ.

&&

.PIH WATCHES/WARNINGS/ADVISORIES...
Heat Advisory from midnight tonight to midnight MDT Saturday
night for IDZ051>055-057-061-065-067-068-070-075.
Red Flag Warning from 2 PM Saturday to 9 PM MDT Sunday for
IDZ410-422-425-475-476.

&&

$$

DISCUSSION...Messick
AVIATION...Cropp
FIRE WEATHER...McKaughan
AIR QUALITY...Messick