textproduct: Pocatello

KEY MESSAGES

- Snow lasts through this afternoon.

- Bulk of the precipitation with this round is along the 84/86 corridor and south into the higher elevations.

- Much colder temperatures remain in place next week with another round of snow likely on Tuesday.

SHORT TERM /THROUGH MONDAY NIGHT/

Issued at 1251 AM MST Sun Nov 30 2025

Snow continues to push south and east across the state this morning. The bulk of accumulations will occur basically from the Big Holes to Twin Falls and points south. We will likely flurries/dusting across most areas of central and eastern Idaho except a good chunk of the central mountains outside of the Sawtooths and surrounding areas. We may see up to 1" along the 84/86 corridor. The lower elevations of the South Hills, Albion Mountains, and southeast highlands should see up to 2", with 2-5" across higher elevations closer to the Utah border. We may see a brief convergence band set up from Pocatello shifting west toward Burley before dying out later this afternoon. Any "enhancement" from this band should be minimal. Impacts to travel should be pretty limited even for higher passes, although enough snow could fall over Emigration Summit to create slightly higher travel issues for a few hours. At the moment, we are still not looking at anything requiring any type of statement/headline. The weather will quiet down quite a bit until Monday night when the next wave arrives from the northwest. We are likely going to see some stratus and patchy freezing fog across around tonight and Monday morning. As expected, very few if any places will top out above 40 this afternoon and again Monday.

LONG TERM /TUESDAY THROUGH SATURDAY/

Issued at 143 PM MST Sat Nov 29 2025

The beginning of the extended period begins with a break on Monday under influence of transitory ridge. The next system arrives Monday night and lingers through Wednesday morning. Model means support an additional inch of snowfall at lower elevations, and 2-4" across the higher elevations south and east of the interstates. Beyond Wednesday there is still uncertainty present in the models. Ensemble clusters favor building a ridge off the coast, with a couple clusters attempting to develop a rex block over the western states. This should result in a dry northwest flow over East Idaho. But the deterministic GFS and ECMWF both flatten the ridge quickly and introduce fast active flow into the PacNW by the end of the week into the weekend. The NBM moderates temperatures slightly for Friday and Saturday, but maintains weakly unsettled flow with continued chances of showers mainly over higher elevations.

AVIATION /12Z TAFS THROUGH 12Z MONDAY/

Issued at 402 AM MST Sun Nov 30 2025

Trends overnight should keep snow for the most part out of SUN. We did keep a limited chance for a couple of hours this morning. The focus for snow and MVFR/IFR conditions will be BYI and PIH through the morning hours, before conditions improve this afternoon. We did keep some potential for snow at DIJ and IDA, although confidence is lower as both airports will be closer to the northern edge of the main band of snow. For tonight, it does appear low clouds will form and impact all TAF sites except SUN. We did drop conditions back toward IFR. Patchy freezing fog is also expected, BUT there isn't enough coverage or confidence to warrant a mention at any one airport over another right now.

PIH WATCHES/WARNINGS/ADVISORIES

None.