730
FXUS65 KPIH 290800
AFDPIH

Area Forecast Discussion
National Weather Service Pocatello ID
200 AM MDT Wed Apr 29 2026

.KEY MESSAGES...

- Cold overnight lows continue for the next couple of mornings
  with another FREEZE WARNING in effect for Wednesday morning
  for the Snake Plain and Arco Desert with a FROST ADVISORY for
  the eastern Magic Valley.

- The potential for showers and even a few thunderstorms
  persists through Thursday during the afternoon.

- Gradual warming trend over the weekend.

&&

.DISCUSSION...
Issued at 159 AM MDT Wed Apr 29 2026

The trough of low pressure that has brought us unsettled
conditions and cold weather is beginning to weaken. We are
seeing warming temps and overnight lows are responding. However,
overnight lows will continue to flirt with frost/freeze
criteria through Friday and possibly into Saturday morning. Will
not issue further freeze watches as confidence and probability
levels (on this shift) are not quite high enough that we will
reach freezing temps over a wide area. So will defer to the day
shift with that latest guidance on additional frost/freeze
headlines. Scattered afternoon showers are likely once again
today. On Thursday, these showers are most likely over extreme
southeast Idaho as the trough begins to pull away and a ridge of
high pressure settles over the area.

The extended remains relatively unchanged. There is a low that will
try to undercut the ridge next week. We could see some moisture from
this system, although more and more model runs show that low
tracking further south. Temperatures over the weekend will shift to
above normal and look like they will stay that way through much of
next week.

&&

.AVIATION /12Z TAFS THROUGH 12Z THURSDAY/...
Issued at 159 AM MDT Wed Apr 29 2026

Considerable amount of mid to high level clouds moving through
today. Expect scattered showers to develop this afternoon mainly
around SUN and DIJ. A few could drift into the Snake River
Plain and encroach upon IDA or BYI, but would probably have no
impacts. Winds expected to remain relatively light today.

&&

.PIH WATCHES/WARNINGS/ADVISORIES...
Freeze Warning until 9 AM MDT this morning for IDZ051>054.
Frost Advisory until 9 AM MDT this morning for IDZ055.

&&

$$

DISCUSSION...13
AVIATION...13