Advisory Archive

You may filter which advisories to display by year, month, and day.


Around Bozeman and Big Sky 1” of snow fell early yesterday morning while the areas around West Yellowstone and Cooke City received 3-5” yesterday and last night. Temperatures at 5 a.m. are in the mid-20s and winds are southwest at 10-15 mph with gusts of 20-30 mph. Today will be mostly cloudy and mountain temperatures may rise to above freezing as winds remain the same. Scattered snowfall this afternoon and tonight will drop 1-2” in the north and 3-4” in the south.

At 5 a.m. 1-2” has fallen in the Bridger Range and Hyalite, and 3-4” in Big Sky, West Yellowstone and Cooke City. Winds are averaging 10-20 mph with gusts of 30 mph from the southwest to southeast and northeast in the Bridger Range. Mountain temperatures are in the high teens. Scattered snowfall will continue and by morning there will be 2-4” around Bozeman and 4-6” everywhere else. Winds will blow southerly at 15-25 mph and temperatures will remain in the teens.

This morning there is no new snow and mountain temperatures are in the single digits above and below zero F. An inversion has valley temperatures in the negative teens F. Winds have been light, out of the south in the southern ranges and west-northwest in the northern ranges and Cooke City. Today temperatures will reach the high teens and low twenties F, and winds will be southwest-west at 5-15 mph. Snow tonight will bring 1-3” by tomorrow morning.

The mountains did not receive any snow in the last 24 hours. Wind has been 0-15 mph out of the north-northwest in the southern ranges and Cooke City, and west-northwest near Bozeman and Big Sky. This morning temperatures are single digits below to 20 below zero F. Today temperatures will reach single digits to low teens above zero F, and wind will be west-northwest at 5-15 mph. The next chance for snow is late Tuesday.

Since yesterday morning no snow fell in the mountains. This morning temperatures are teens below zero F in the mountains near Bozeman, and single digits above and below zero F elsewhere. Wind is 0-10 mph out of the west-northwest, and in the Bridger Range wind is east-southeast. Today temperatures will reach single digits to low teens above zero F, and wind will be northerly at 0-10 mph. The next chance for snow is Tuesday night.

Since yesterday morning the mountains picked up 1-3” of new snow. Additional accumulation is unlikely today as cold-dry air moves over the region. At 5 a.m. temperatures are 10-15 below zero F in the Bridger Range and single digits above zero F elsewhere. Winds are blowing 10-30 mph out of the west-northwest. Today, highs will barely warm into the teens F and winds will remain light to moderate out of the west-northwest. No real snow accumulation is expected over the next 24 hours.

Over the past 24 hours the mountains picked up 4-7” of new snow. At 5 a.m. snow has tapered off and skies are beginning to clear. Temps are in the single digits F and winds are blowing 15-35 mph out of the west-northwest. Today, skies remain partly to mostly cloudy and temps warm into the teens. Winds will continue to blow 15-30 mph out of the west-northwest. The mountains could see 1-2” of snow tonight, but snowmageddon appears to be letting up for the next few days.

The snowfall continues unabated. Since yesterday morning the southern mountains, including Cooke City, received 8-10” of new snow while Big Sky and the Bridger Range got 6-7”, and 3” falling up Hyalite. Mountain temperatures are in the 20s  and winds are west to southwest at 10-20 mph with gusts reaching 40 mph. Snowfall will continue today and by tomorrow morning I expect 2-4” in the north and 4-8” in the southern ranges. Winds will continue to be westerly at 20-30 mph and temperatures will remain in the 20s.

Since yesterday morning 4” fell in the Bridger Range and 8-12” fell everywhere else. At 5 a.m. temperatures are in the teens to low 20s, except near Bozeman where they are near 0F at low elevations. Winds are southwest (northeast in the Bridgers) averaging 15-20 mph with gusts of 35 mph. Snowfall today and tonight will drop 1-2” in the northern areas and 6-8” in the southern ranges with more snow falling tomorrow. Winds will continue to blow 20-30 mph from the southwest and mountain temperatures will remain in the 20s.

Heavy snowfall brought 17-20” south of Big Sky and near West Yellowstone, 14” near Cooke City, a spotty 3-8” near Bozeman and Big Sky. An inversion near Bozeman has low elevation temperatures below 0F. Temperatures are 20s F elsewhere. Winds are southwest at 20-30 mph with gusts over 50 mph, and 10-25 mph in the Bridger Range. Temperatures will rise into the high 20s and winds will remain moderate out of the southwest. Snow will continue through the day, increasing overnight. By morning the mountains will have 12-18” of new snow near West Yellowstone and Cooke City with 4-8” near Bozeman and Big Sky.