textproduct: Pocatello

KEY MESSAGES

- First round of rain and snow arrives tomorrow evening through Saturday

- Cooler temperatures expected starting Saturday

- Wet and cool weather continues heading into next week

DISCUSSION

Issued at 1053 AM MST Thu Nov 12 2026

We will continue to enjoy warm (relatively speaking) and dry weather through tomorrow afternoon. Highs will remain in the 50s and 60s tomorrow, despite some increase in high and mid level clouds and likely aided by downslope across the bench areas from Burley to Rexburg.

This first round of rain and snow moves through quickly, along with split flow across Idaho. This will help focus precipitation mainly across portions of the central Idaho and highlands from around Pomerelle to the Bear River Range. Southerly flow will limit precipitation across portions of the Snake Plain, Magic Valley and adjacent bench areas initially. On the flip side, it will produce upslope on the opposite side of the Snake Plain and Magic Valley, especially into the Wood River Valley and surrounding mountain ranges. Across the Wood River Valley and surrounding mountains, look for 0.20-0.40". Although there is some spread in the aerial coverage of higher amounts across the South Hills/Albion Mountains through the Bear River Range, look for up to 0.30". Elsewhere amounts will range from maybe a couple of hundredths up to 0.20", due to downslope or the low splitting leaving some places high and dry, literally. There is some room for a lot more precipitation to fall, as the Blend of Models is pretty light compared to a lot of ensembles and AI versions of models and ensembles. They are showing almost double across many valley locations and nearly tripled across favored higher elevations spots we mentioned before. We did boost the precipitation forecast from WPC just a bit, but certainly not as much as what is showing up elsewhere. Snowfall is limited to generally above 7000ft and any impactful snow above pass level. We are still only looking at around 1-3" with up to 5" in upslope across part of the Sawtooths, Boulders, and Pioneers. Temperatures drop back into the 30s and 40s for highs. We will be in between lows on Sunday, with temperatures rebounding around 5 degrees or so. The next storm slowly shifts inland Monday, and only impacting the central mountains back into south-central and southwest Idaho. We will see another round of rain and snow despite the low splitting as it shifts east. It looks a large and slow-moving low settles in across the western U.S. toward the latter half of next week.

AVIATION /00Z TAFS THROUGH 00Z SATURDAY/

Issued at 359 PM MST Thu Nov 12 2026

Fairly tranquil weather for the first 18 or so hours, with VRB to terrain-influenced wind and a few mid- to high level clouds. An approaching front will shift wind to the south by 13/18Z with gusts as strong as G30KT, though mainly G25KT. Most of this is due to downslope conditions at KPIH and KBYI, although even KIDA should see gusty southerly wind.

See no impact to VSBY or CIG, but CIG will also deteriorate Fri afternoon, just not with impact. KSUN does start developing VCSH in the afternoon, but the risk of actual precipitation at the airdrome appears very low at this time. Will likely be -SHRA with all the warming ahead of this frontal passage.

PIH WATCHES/WARNINGS/ADVISORIES

None.