Advisory Archive
A dusting of snow fell yesterday morning as snowfall tapered off and skies cleared, but there were not significant accumulations. Overnight, winds picked up around Bozeman and Big Sky, now blowing 20-30 mph out of the west, with gusts of 40-45 mph. Winds elsewhere are a bit lighter (10-15 mph) out of the northwest and north. Temperatures are in the teens F this morning (single digits F around Cooke City).
Today, winds will continue to be strongest in the northern ranges, perhaps picking up a bit everywhere as snowfall begins late this afternoon. High temperatures will be in the 20s and 30s F.
Snowfall tonight will add up to 3-6” by tomorrow morning across most areas, with snowfall continuing tomorrow. Island Park will get a bit less, with 1-3” expected.
Snow fell yesterday and again last night favoring mountains near Bozeman & Big Sky
- 7-12” snow (0.7” SWE) in Hyalite Canyon, northern Gallatin Range
- 7” snow (0.4” SWE) in Big Sky, northern Madison Range
- 5” snow (0.3” SWE) in the Bridger Range and near Cooke City
- 4” snow (0.3” SWE) in the southern Madison Range
- 2” snow (0.1” SWE) in the Lionhead and Island Park areas
This morning winds have eased since yesterday in most areas, averaging 5-10 mph from the N. In the Bridger Range winds are coming from the W, and there are a few higher gusts at the ridge. Near Cooke City winds remain a bit elevated blowing 24 mph gusting to 44 mph from the N. Temperatures are in the low teens F up high and upper teens at lower elevations.
Today will be stunning with a fresh coat of white paint, light winds from the NW, and cold air keeping high temperatures mostly in the upper teens to 20 degrees F. Low level clouds and fog will linger through the morning followed by mostly sunny skies. Friday will have a brief warm up followed by a decent shot of snow Friday night through Saturday.
WINDS increased this morning blowing 15-30 mph with gusts up to 40 mph from the W and NW. Temps this morning are mostly in the mid-teens F. In the Bridger Range, winds are gusty at all elevations.
The main feature driving our weather is a large ridge of high pressure over the Pacific. The jet stream is riding over this ridge and dropping down from the northwest into Montana bringing a “series of troughs, interrupted by transient ridges, through the region for the next week or so.” - NWS discussion
Today will be windy, and skies will become mostly cloudy with snowfall this afternoon. The most wind and snow will occur in the mountains near Bozeman. Ridgetop winds from the W will average 15-20 mph and gust 30-40 mph (a bit lighter further south). Near Bozeman, several inches of snow should fall today with several more tonight (3-6” total). Further south, 2-3 inches should fall by tomorrow morning.
This morning, temperatures are in the single digits to teens F, with light winds except in the Bridger and Lionhead areas, where winds are 15 mph, gusting to 35 mph. The Northern Madison and Northern Gallatin Ranges picked up another 3-4” of snow in the last 24 hours, with 0-1” elsewhere.
Today, temperatures will reach the teens and 20s F with light winds from the north and west. Localized winds may increase in the Bridger Range. Clouds will gradually clear away after a trace of snow falls this morning. Snow returns tomorrow afternoon.
This morning, mountain temperatures are in the teens and 20s F, with remarkably light winds from the west and northwest. The mountains around Bozeman and Big Sky received 6-7” of snow overnight, with 3” in Island Park and a trace to 1” elsewhere.
Today, temperatures will be in the teens and 20s F with light winds from the northwest and north. Snowfall continues today, with the mountains around Bozeman and Big Sky getting 3-6” by tomorrow morning and a trace to 2” throughout the rest of the forecast area.
Totals from snow that fell during the day yesterday are:
- 7” (0.7”snow water equivalent (SWE)) in Hyalite.
- 3-5” (0.3-0.5” SWE) in Big Sky.
- 4” (0.4” SWE) Cooke City.
- 3” (0.3” SWE) Bridgers and Taylor Fork.
- 2” (0.2” SWE) West Yellowstone and Island Park.
Temperatures are teens to low 20s F this morning, and will be teens and 20s F today. Yesterday winds increased to moderate out of the northwest at 10-20 mph with gusts to 25-40 mph. This morning winds are from the southwest at 5-15 mph, and today wind will remain light out of the west.
Snowfall is forecast this afternoon through tonight, favoring the mountains near Bozeman and Big Sky with 4-8” by morning, and 1-3” near Cooke City, West Yellowstone and Island Park.
Since yesterday morning snowfall amounts are:
- 4-5” (0.4-0.5” snow water equivalent (SWE)) in Cooke City, Bridgers, Big Sky.
- 2-3” (0.2-0.3” SWE) in Hyalite, Taylor Fork, West Yellowstone, Island Park:
Temperatures are low 20s to low 30s F this morning, and will be in the 20s F today. Wind has been out of the southwest, and increased overnight to 5-20 mph with gusts of 35-45 mph. Today the wind will shift and be from the northwest at 5-15 mph with gusts to 20 mph.
Another round of snowfall is starting this morning, favoring the mountains near Bozeman and Big Sky with heavy snow possible during the day. By this evening, 4-8” of snow could fall in the Bridger Range, Hyalite and near Big Sky with 2-3” elsewhere.
In the last 24 hours, it has snowed:
10” (1.0” Snow Water Equivalent) in Cooke City
3-5” (0.4-0.6” SWE) near Big Sky, West Yellowstone, Island Park
2” (0.2” SWE) in Hyalite
Temperatures rose overnight in many areas and are in the mid-high 20s F this morning. Winds are 20-25 mph out of the southwest and west (a bit lighter in the Bridgers), with gusts of 30-40 mph.
Snowfall may be intense at times this morning, tapering off this afternoon before another round of snow hits tomorrow. By tomorrow morning, expect 6-8” of new snow near Cooke City, 4-6” near West Yellowstone, Island Park and Big Sky, and 3-5” around Bozeman. Winds will remain moderate and westerly. High temperatures will rise to near freezing in many areas.
If you like cold, snowy weather with lots of powder, it doesn’t get any better than now. Skiing and riding conditions are 5-star, and light snow is falling this morning. A quick look at any weather forecast shows more snow coming at least into next week.
This morning, most areas received 3-5 inches of new snow in the last 24 hours, some falling yesterday and some this morning. 0.1-0.2 inches of SWE in northern forecast zones and 0.3-0.4 in southern zones. Temperatures are mostly in the low teens F. Winds are barely blowing in the Bridgers. In all other areas, winds are blowing 10-15 mph gusting to 25 mph generally from westerly directions.
Today another inch or so of snow should fall and then a few more inches tonight. Areas near West Yellowstone, Island Park, & Cooke City could get more with 3-5 inches tonight. Temperatures will warm into the low 20s F, and winds may increase some. Heavier snowfall should arrive with a warm front sometime tomorrow into Saturday.
Yesterday morning a bit more snow trickled into the Bridger Range and northern Gallatin and Madison Ranges. Higher elevations received 2-3 inches.
This morning it’s cold with temperatures around 5 degrees F in most places. Winds picked up since yesterday averaging 15-25 mph gusting to 40 mph from the W and SW. Winds in the Bridger Range are surprisingly light blowing 5 mph gusting to 10 mph.
Today cloudy skies will deliver more snow and temperatures will struggle to pull out of the single digits into the low-mid teens F. Winds should continue from the W and SW mostly at the same speed but may increase some this afternoon.
Snowfall should start around late morning. Most areas will see some snow with 1-3 inches falling The mountains near Island Park and West Yellowstone should get the most snow and wind. By tomorrow morning, the Island Park area should have 5-7 inches of snow and the West Yellowstone area should have 2-4 inches.
