Advisory Archive

Cooler temperatures have started to move into southwest Montana, but they have forgotten the snow. Currently, mountain temperatures are ranging from the mid teens to low 20s and winds are blowing out of the WSW at 10-20 mph. An approaching cold front will enter our area by early afternoon, dropping temperatures significantly through the later part of the day. Snow will likely arrive with this front, delivering 3-5 inches to the mountains by tomorrow morning. Temperatures will plummet well below zero tonight and will struggle to reach double digits above zero tomorrow.

The weather pattern is finally changing with some snowfall and cold air approaching. This morning temperatures were in the high teens to low 20s F and winds were blowing 15-30 mph from the W. Today temperatures will climb to the mid to high 20s F and winds will continue blowing 15-30 mph from the W. Places north of the advisory area will receive snow and much colder temperatures today. Snowfall in advisory area will arrive as moisture from the southwest meets cold air descending from the north. By tomorrow morning 2-3 inches of snow should fall in most places; however, exact amounts depend on the timing of this moisture and cold air which could meet late this evening or tomorrow morning.

This morning temperatures were in the high 20s F with winds blowing 10-30 mph from the W. Near Cooke City and West Yellowstone temperatures were in the high teens F with winds blowing 5-15 mph. Similar conditions will continue today with high temperatures in the low to mid 30s F while high temperatures near Cooke City and West Yellowstone will reach the low 20s F, and winds shouldn’t change much. A few snowflakes may fall tomorrow morning but no accumulations are expected. Colder air should begin arriving this evening and produce a cooling trend through the weekend.

A ridge of high pressure is the main weather feature today. This morning temperatures were in the mid 20s F and ridgetop winds were blowing 20-40 mph from the W. Near Cooke City and West Yellowstone, winds were calmer with temperatures around 11 degrees F. Today winds should blow 15-30 mph from the W and temperatures will warm into the low 30s F. Near Cooke City and West Yellowstone temperatures will warm into the low 20s F. No new snow is expected for the next couple of days.

As the snowstorm tapered off yesterday morning it dropped an additional two to three inches up Hyalite with a trace to one inch everywhere else. Temperatures reached the mid 20’s with westerly winds at 15-20 mph. A brief spell of “precipitation” (code word for rain) was reported on Mt Blackmore around noon yesterday. Today’s high pressure will bring partly cloudy skies, temperatures warming to the high 20s and westerly winds at 5-15 mph. 

This is the thirteenth day in a row that we’ve gotten new snow in our advisory area. Last night all the ski areas picked up 3-4 inches with 2-3 inches falling everywhere else. Winds are blowing westerly at 10-20 mph with temperatures in the low 20s in the north to 10 degrees outside Cooke City. Scattered snowfall this morning will only drop another inch in the mountains. Under mostly cloudy skies winds will blow westerly at 15-25 mph as temperatures warm into the upper 20s. 

A fast moving weather disturbance deposited 4-5 inches of new snow in the northern Gallatin and Madison Ranges while the mountains around Cooke City picked up an additional 7-8 inches. The Bridger Range and mountains around West Yellowstone picked up 1-3 inches. Winds spiked around 8 pm last night with the arrival of this storm, but have gradually decreased and are currently blowing 10-25 mph out of the WNW. Mountain temperatures are averaging in the mid teens F with Cooke City being the coldest at 5 degrees F. Temperatures will gradually rise into the low 30s by this afternoon and winds will stay consistent out of the W at 10-20 mph. Southwest Montana will likely see a break in the weather this morning, but increasing clouds and a chance of mountain snow will move back into the area tonight. 1-3 inches of snow are possible by tomorrow morning.

Over the past 24 hours 2-3 inches of snow has fallen in the mountains around Cooke City, while the rest of our advisory area has remained dry. Light cloud cover overnight has kept mountain temperatures in the mid to high teens and winds are currently blowing out the W at 20-30 mph with ridgetop gusts reaching 40 mph in Hyalite and Big Sky. Today, temperatures will climb into the high 20s F and winds will stay moderate out of the W at 10-20 mph. Skies will remain mostly cloudy today as a weak short wave passes to our north; however, no snow is expected over the next 24 hours.     

A strong frontal passage moved through our area around 1 am this morning producing strong winds and heavy snow. In a matter of hours, 4-5 inches of snow fell in the mountains around Big Sky and West Yellowstone while the Bridger Range and northern Gallatin Range picked up 2-3 inches. The mountains around Cooke City picked up 7-8 inches. 

Winds spiked with the arrival of the front, producing gusts over 60 mph in Hyalite and Big Sky. Winds have mellowed a bit, but are still blowing out of the WNW at 20-30 mph with gusts in the 40s. Temperatures are ranging from 11 degrees in Cooke City to the high teens-low 20s throughout the rest of our advisory area. Today, winds will remain strong out of the WNW and temperatures will rise into the 20s F. Snowfall will taper off this morning and skies will become partly cloudy by this afternoon. No significant accumulation is expected over the next 24 hours.

Since yesterday morning the mountains near Cooke City and West Yellowstone received 3-6 inches of snow. The mountains near Big Sky and Hyalite Canyon received an inch and the Bridger Range remained dry. Strong winds continue. This morning they were blowing 20-40 mph from the W except near Cooke City where they were blowing from the N. Temperatures were in high single digits F near Cooke City and West Yellowstone and mid to high teens F everywhere else. Today, winds should decrease slightly and temperatures should warm into the 20s F. Snowfall will come again tonight. The southern areas will again do well with 3-6 inches. Closer to Bozeman and Big Sky, 1-3 inches should fall.