textproduct: Pocatello
This forecast discussion was created in the public domain by the National Weather Service. It can be found in its original form here.
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.
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