textproduct: Pocatello

KEY MESSAGES

- Light to moderate snow develops this evening in the mountains and southeast highlands, continues through all areas until Wednesday night.

- Lower elevations will see overnight snow and daytime rain as temperatures continue slightly above normal for the time of year.

- Drier for the weekend but becoming unsettled again early next week

DISCUSSION

Issued at 110 PM MST Tue Feb 10 2026

A seasonably mild and occasionally unsettled late-winter pattern will persist across Eastern Idaho through the upcoming week. Mid and high level moisture currently south of the area is progged to move through overnight and into the day tomorrow. Lower valleys will likely see an initial rain/snow mix Wednesday morning before boundary layer warming shift the dominant p-type to rain. Valley accumulations appear negligible, generally a half inch or less. Conversely, mountain locations across the central mountains and eastern highlands will see more persistent snowfall; a Winter Weather Advisory is in effect for the eastern highlands and BEar River Range to highlight this 3'6" snow potential, with locally higher amounts on the highest mountains passes and peaks. Precip chances begin to taper off as we get into Thursday afternoon and evening.

A brief reprieve is expected Friday as the deepest moisture tapers off, though isoalted showers may linger along the Divide and around the Teton Valley. Attention then turns to early next week as a broad Pacific trough approaches. Southwest flow will strengthen Monday, likely introducing a more robust moisture tap across the region. While snow levels remain a significant forecast challenge this far out, current ensemble guidance suggest rain/snow mix remains the most likely outcome for the lower elevations with snow across the higher terrain. There's still a lot of time for this to change however so this will be something to monitor over the days ahead. Higher confidence exists in regards to the lack of any Arctic air intrusions given the upper level pattern forecast which would keep temps running at or slightly above seasonal norms through the week ahead.

AVIATION /06Z TAFS THROUGH 06Z THURSDAY/

Issued at 1024 PM MST Tue Feb 10 2026

VFR conditions with light winds through this evening. Will see a change with moisture from next system pushing from the south and east after midnight into Wednesday morning. Continued with MVFR to IFR conditions with snow and low ceilings at all sites 10 to 15Z Wednesday morning with some visibility restrictions as well. Have precipitation transition to a rain/snow mix at BYI at 12Z and PIH at 17Z. Will likely be after 18Z at IDA and SUN when the change over occurs. Kept it snow at DIJ. Kept MVFR/IFR CIGS for IDA and DIJ all afternoon into the evening. Models show PIH and BYI to go back to MVFR if not IFR with low CIGS and possibly fog tomorrow evening into Thursday morning.

PIH WATCHES/WARNINGS/ADVISORIES

Winter Weather Advisory until 5 AM MST Thursday for IDZ060-063- 064-066.