Advisory Archive

Yesterday snow favored the Bridger Range with 6” of low density snow, 1” fell in Hyalite and Big Sky, and zero to a trace near Cooke City, West Yellowstone and Island Park.
Wind was out of the west to southwest at 10-15 mph with gusts of 25-40, and this morning wind is shifting to the northwest and north at 5-15 mph. Temperatures are single digits above and below zero F.
Today, scattered cloud cover will bring a few flurries of snow with light west-northwest wind. Temperatures will reach low single digits above zero F before dropping to teens below zero overnight.

Yesterday snowfall dropped 1-3” near Cooke City, West Yellowstone and Island Park with none elsewhere. This morning temperatures are zero to single digits F. Wind has been out of the west, northwest and southwest at 10-25 mph with gusts of 25-40 mph.
Today, skies will be mostly cloudy with light snow showers, temperatures will reach single digits to teens F, and wind will be light at 10-15 mph with moderate gusts to 25 mph. By morning 1-3” of new snow is possible near Bozeman, Big Sky and Cooke City with a trace to 1” elsewhere.

Snowfall ended yesterday afternoon with 24 hour totals of:
3-4” (0.2-0.4” Snow Water Equivalent) across most of the advisory area
7” (0.6” SWE) near Lionhead
9” (0.8 SWE) near Cooke City
This morning, temperatures are in the single digits and teens F. Winds are 10-15 mph out of the west and northwest with gusts of 30-40 mph.
Skies will be increasingly cloudier the further south you go in our advisory area. Temperatures won’t rise much, with highs remaining in the single digits and teens F. Winds will back off a bit and gusts will die down as they shift more southwesterly. A dusting to 2” of new snow will accumulate by tomorrow morning.

This morning, it’s snowing and 2-3” of new snow have accumulated so far. Winds are blowing from basically every direction on the southern half of the compass (W-SE in most areas and straight E in the Bridgers) at 15-30 mph with 25-50 mph gusts. Temperatures are generally in the teens F.
Winds will increase this morning, shifting to be consistently out of the west. High temperatures will be in the 20s F in the southern areas, but will stay steady or actually fall throughout the day in the areas around Bozeman and Big Sky. Steady snowfall, which may be heavy at times, will add up to 4-8” in most places by this evening. Cooke City will be a bit favored and may get more like 6-10”. Snowfall will end this evening.

It’s been a roller coaster of crazy weather:
Friday (Jan 31) through late Monday brought 30” snow (3” water) to mountains near Cooke, 16-21” snow (2-2.4” water) to mountains near Island Park and West Yellowstone, and 12-20” snow (1-1.6” water) to the Bridger, Gallatin, and Madison Range. The tail end of these storms delivered a very rare coating of dust (photo) to the snowpack in all areas except the Bridgers. This dust may impact the snowpack later, but for now it indicates unusual weather.
Tuesday had temperatures well above freezing in many areas while the Gallatin Valley struggled to get above zero degrees F. Very strong winds from the south began ramping up.
Wednesday (yesterday) had continued very strong winds (gusts up to 80 mph) from the south and temperatures near freezing while many valleys had temperatures 30 degrees colder. Snow started falling yesterday and temperatures started dropping. The Bridger Range picked up 6-9” snow (0.5-0.6” water) while most other areas received 3-4” snow (0.3-0.4” water).
This morning mountain temperatures are 5-10 degrees F which are 25 degrees colder than this time yesterday. Winds aren’t as strong and are blowing more from the west 15-30 mph gusting 40-60 mph.
Today there may be a little sunshine this morning but clouds will be increasing through the day with winds decreasing. Temperatures should generally get into the mid teens F. An area of low pressure (aka a storm) will hit the west coast today and bring snowfall to our area tomorrow. There may be a few snowflakes in the air late today, and Friday should have 3-4” of snow with strong winds from the southwest mainly near West Yellowstone, Island Park, and Cooke City.

This morning, you wouldn’t believe it sitting in -5 F temperatures of Bozeman or the base of Bridger Bowl, but mountain temperatures are in the high 20s to mid-30s F. Strong winds are blowing 15-45 mph with a recent gust on Lone Mountain hitting 90 mph.
Today, mountain temperatures will drop into the teens F by this afternoon as a cold front moves through the area. Strong 25-50 mph winds from the southwest will continue most of the day. The mountains will receive 2-4” of snow this morning into early afternoon.

This morning, temperatures are in the 20s F, except for the low elevations in the Bridger Range, stubbornly sitting in the single digits above and below 0 F. Winds are 15-45 mph from the west through the south, with lighter winds in the Bridger Range.
In the last 24 hours, Cooke City received an additional 6-8” of snow, with 2-3” falling everywhere else.
Mountain snow totals since Friday:
- Cooke City - 30” of snow (3.0” snow water equivalent - SWE)
- West Yellowstone and Island Park - 16-21” of snow (2.0-2.4” SWE)
- Bridger, Madison, and Gallatin Ranges - 12-20” of snow (1.0-1.6” SWE)
Today, mountain temperatures will hover above and below the freezing mark, with cooler temperatures persisting in the Bridger Range. Winds will be 15-25 mph from the southwest. Across the forecast area, 2-4” of snow will fall by tomorrow morning, with a trace to 1” in the Bridger Range.

New snow totals this morning are 6-8” most places with 3” in the Taylor Fork. Wind has been moderate to strong, out of the southwest and west at 10-25 mph with gusts of 25-60 mph. Temperatures are single digits to teens F near Bozeman and Big Sky and high 20s F elsewhere. Temperatures will remain colder in the north half of our forecast area and reach high 20s and low 30s in the southern half of the area.
Snowfall will continue today. Wind will be moderate out of the west and southwest, with stronger speeds and gusts in the southern half of our area. By this evening the mountains could have up to 12” of new snow near Cooke City, 5-9” near Island Park and West Yellowstone, and 3-6” elsewhere.

New snow totals this morning are:
- 4-6” near Cooke City, Island Park, West Yellowstone
- 3-5” in Big Sky,
- 2” in Hyalite and Taylor Fork,
- A trace to an inch in the Bridger Range.
Wind has been moderate to strong, out of the southwest and west at 15-25 mph with gusts of 25-45 mph. Temperatures are teens to mid-20s F.
Today temperatures will reach mid-20s F. In the north half of our area wind will be out of the west and southwest at 5-10 mph with gusts to 25 mph, and near Cooke City, West Yellowstone and Island Park wind will be 15-25 mph with gusts to 40 mph.
Heavy snowfall is expected later this morning near Cooke City and Island Park, and elsewhere snow will start later in the day. By morning the mountains near Bozeman, Big Sky and West Yellowstone could have 6-10”, and near Cooke City and Island Park 12-16” are possible. Steady snowfall is expected through Tuesday, and possibly longer through the week.

New snow totals this morning are:
12” of low density snow near Cooke City
4-5” around West Yellowstone, Island Park and Big Sky
Trace-2” near Bozeman
Winds have been strong out of the west, blowing steadily at 20-30 mph with gusts as high as 55 mph. Temperatures are in the teens and 20s F this morning.
Another pulse of snow this afternoon will bring 1-3” to much of the advisory area by nightfall, favoring the southern regions. By tomorrow morning, 4-8” will accumulate in Island Park and Cooke City, with 1-3” elsewhere. High temperatures will be in the 20s F and it’s going to stay windy - blowing 20-30 mph out of the west with stronger gusts.
Snow continues tomorrow and into the workweek.