463
FXUS65 KPIH 261730
AFDPIH

Area Forecast Discussion
National Weather Service Pocatello ID
1130 AM MDT Thu Jun 26 2025

.KEY MESSAGES...

- Afternoon highs 4 to 9 degrees above normal through the
  weekend, and 10 to 15 degrees above normal by Monday.

- Breezy afternoons Thursday through Saturday.

- Showers and thunderstorms possible by mid week next week with
  monsoonal moisture increase.

&&

.SHORT TERM /THROUGH FRIDAY NIGHT/...
Issued at 207 AM MDT Thu Jun 26 2025

Main impacts today will be breezier conditions with sustained
winds of 10 to 20 mph this afternoon across nearly all of
southeast Idaho with gusts 20 to 30 mph and isolated afternoon
thunderstorms in the Lost River Range areas and eastern
mountains. Expect the same conditions Friday with the same
increase in afternoon winds to 10 to 20 mph with the 20 to 30
mph gusts and isolated thunderstorms again in the Centennial
Mountains but less coverage expected overall. High temperatures
both today and Friday will be in the 70s to lower 80s mountains
and 80s to near 90 lower elevations.

&&

.LONG TERM /SATURDAY THROUGH WEDNESDAY/...
Issued at 207 AM MDT Thu Jun 26 2025

Saturday through Monday are expected to be dry with
temperatures warming significantly Monday and Tuesday. Zonal
flow will keep breezy conditions and the 10 to 20 mph afternoon
winds with gusts 20 to 30 mph going with highs again in the 70s
mountains and 80s valleys. Upper ridge builds overhead Sunday
into Monday. Highs Sunday in the 80s mountains and 80s to lower
90s valleys with highs Monday 80s mountains and 90s valleys.
Winds much lighter Sunday and Monday under ridge with dry
conditions also expected. Upper ridge moves east Tuesday and
expect more monsoonal moisture to move into Idaho on southerly
flow aloft and will see more shower and thunderstorm activity
both days. It will remain very warm with highs remaining in the
80s mountains and 90s valleys.

&&

.AVIATION /18Z TAFS THROUGH 18Z FRIDAY/...
Issued at 1130 AM MDT Thu Jun 26 2025

VFR and dry conditions will continue into Friday morning across
eastern Idaho, as mid and high level clouds build in out of the
west. Afternoon wind increases are expected at all terminals
today with gusts to around 20 kts, ahead of lighter winds back
overnight. Any isolated showers and thunderstorms today will
remain confined to the Central Mountains and Continental Divide
region, with a 10-20% chance of any activity reaching KDIJ.

&&

.FIRE WEATHER...
Issued at 207 AM MDT Thu Jun 26 2025

Main impacts today will be afternoon wind gusts of 20 to 30 mph
across most zones. Will see afternoon thunderstorms mainly in
zones 475, 476, and 411. Will have widespread minimum humidity
below 20 percent with some below 15 percent in zone 410 and 427.
Will see similar conditions Friday with again wind gusts in the
20 to 30 mph range once again with most isolated thunderstorm
activity in zone 411. Minimum humidity mainly above 15 percent
with a bit more moisture than today. By Monday will have
widespread below 15 percent humidity under upper level ridge.

&&

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

&&

$$

SHORT TERM...GK
LONG TERM...GK
AVIATION...MacKay
FIRE WEATHER...GK