textproduct: Missoula

DISCUSSION

KEY MESSAGES:

- Light snowfall continues through sunset, especially for north- central Idaho.

- Slippery Travel: Pockets of light freezing rain in valleys and snow at pass level are possible Thursday into Friday, affecting morning commutes.

- Warming Trend: There is a 70-90% chance that many valley locations will reach 60 degrees mid-week next week.

Light snowfall will continue for area mountains and passes through sunset this evening, resulting in minor travel impacts due to snow-covered roads. Some valleys will see brief periods of light snow, though no accumulations are anticipated.

The forecast for Thursday and Friday remains on track, with several weather systems bringing light precipitation to the region. Expect mixed rain and snow, which may create slippery roads, especially during morning commutes. Northwest Montana and Clearwater County, Idaho, have the highest chance for this wintry mix.

A strong low-pressure system in the eastern Pacific over the next several days will allow a ridge of high pressure to build over the western U.S. This ridge will be particularly strong for this time of year, potentially bringing record high temperatures this weekend, with 40s and 50s across many valley locations. Forecast models show a 20 to 30 percent chance of highs reaching 60 degrees in the Camas Prairie, Idaho, as well as the Mission, Deer Lodge, and Bitterroot valleys by the middle of next week.

AVIATION

Light snowfall will continue for area mountains and passes through sunset this evening with only minor impacts expected. Some valleys will see brief periods of light snow, though no accumulations are anticipated. Kalispell (KGPI), Missoula (KMSO), and Butte (KBTM) may see brief periods of reduced visibility between 3 AM and 7 AM MST (10Z-14Z) tomorrow morning due to a mix of light snow and rain.

HYDROLOGY

Due to persistent cold temperatures, area rivers and streams are beginning to see significant ice build up in Lemhi County, Idaho. Some properties are experiencing minor flooding downstream of the Lemhi River gauge, near Lemhi. Watch for increased river levels as we approach the expected warm temperatures this weekend and early next week.

MSO WATCHES/WARNINGS/ADVISORIES

MT...None. ID...None.