Sunday and Monday have been declared Weather Alert Days. All of NBC Montana is under a Winter Storm Warning through Monday. Heavy accumulations are possible, along with blowing snow and dangerous wind chills. | NBC Montana

WEATHER ALERT DAY: winter storm strengthening, strong winds, heavy snow, school closures and major travel impacts. More details: https://bit.ly/3WMQJ1C | NBC Montana

WEATHER ALERT DAYS posted through Tuesday across NBC Montana. Blustery conditions tonight with winds gusting up to 45 mph in the Flathead, bringing dangerous wind chills as well. New snow accumulations between 1 to 3 inches for the Flathead and Mission Valleys. The Bozeman area could see 2 to 4 inches by tomorrow. | NBC Montana