Advisory Archive
This morning mountain temperatures are in the low to high 20s F, about 5 degrees colder than yesterday morning, and 15-30 degrees warmer than valley temperatures. Winds from the W and NW are blowing 14-25 mph at the highest ridges about half that speed at lower ridgelines.
Today will be another stunning day in the mountains with crystal clear skies, sunshine and more warm temperatures rising into the upper 30s to low 40s F. Winds won’t change much except they’ll blow a little more from the north keeping temps a touch cooler than yesterday.
Snow arrives late Friday as a trough of low pressure descends over Montana Friday/Saturday with a short break and then the jet stream lines up overhead and stays in place into next week. Snowfall should come to most places, but at the moment the models are showing Cooke City, West Yellowstone, and Island Park getting snow with inches of water by this time next week. Winds should be fairly strong during this period of snowfall.
Mountain temperatures this morning are in the upper 20s and low 30s F while most valleys are 20 degrees colder. Winds from the W and NW are generally light but gusty in the Bridger Range.
It’ll be another warm and sunny day. Winds should remain mostly light and temperatures will rise into the mid 30s F with some places getting into the low 40s F.
Get ready for a prolonged period of active weather. Snowfall should start late Friday, and the jet stream will generally stay over the forecast area well into next week continually bringing moisture into the area from the W and SW. Models don’t show high pressure returning until about 2 weeks out
This morning, mountain temperatures are in the 20s F with valley temperatures in the single digits to teens F. Winds around Bozeman and Big Sky are 15-25 mph from the west and northwest. Winds farther south in West Yellowstone, Island Park and Cooke City are 5-10 mph.
Today, under clear skies, temperatures will climb into the 30s F with 10-25 mph winds in the northern forecast area and calm conditions in the southern forecast area.
This morning, temperatures are inverted, with upper elevations temperatures in the teens F and valley temperatures in the single digits above and below 0 F. There is no new snow.
In the northern half of the forecast area, winds are 15-35 mph, gusting to 45 mph from the west and northwest. The strongest winds are in the Bridger Range. In the southern half, winds are 5-10 mph from the northwest to northeast.
Today, temperatures will be in the upper 20s to low 30s F. The winds will be 10-20 mph in the northern half of the forecast area and 5-10 in the southern half. Stronger winds will continue in the Bridger Range.
This morning there is 1” of new snow near Island Park and none elsewhere. Temperatures are single digits F. In the Bridger Range wind is out of the west and southwest at 15-25 mph with gusts to 30 mph. Elsewhere, wind is out of the north and northwest at 5-15 mph with gusts of 15-20 mph.
Today, temperatures will reach teens F, and wind will be calm to light (5-15 mph) from the north and west. This week will be mostly sunny with no snow expected and temperatures reaching mid to high 30s F.
6-8” new snow around Bozeman and Big Sky
2-3” around West Yellowstone, Island Park and Cooke City
Most of the new snow fell during the day yesterday, but it is snowing again early this morning. Snow will wrap up this morning without much additional accumulation. Temperatures this morning are in the single digits above and below 0 F. Winds are 5-15 mph out of the north and west with gusts of 20-40 mph.
Today will be mostly sunny, with high temperatures in the single digits and teens F. Winds will remain northerly and light in our northern regions and moderate further south.
High pressure is settling in for the next week, so don’t expect any more new snow for a while.
It has started to snow this morning, but only a dusting has accumulated so far. Temperatures are in the single digits and teens F. Winds are 20-25 mph out of the south and west, with gusts of 30-50 mph.
Temperatures won’t rise much today, with high temperatures being in the single digits and teens F. Winds will back off a bit and shift to be more out of northwest and north. By tomorrow morning, 2-5” of snow will fall around Bozeman and Big Sky, with the bulk of that coming this morning. 1-3” will fall near West Yellowstone, Island Park, and Cooke City.
Yesterday’s cloudy skies dropped another inch or two of snow mostly in mountains near Bozeman, Big Sky, and Cooke City. Near the top of Bridger Bowl, the storm total from late Tuesday evening through Wednesday was 16 inches (0.25 inches of SWE) of the lightest snow possible, almost 99% air.
Clear skies this morning allowed temperatures to drop to almost 0 degrees F in most areas. Winds are blowing 10 mph from the NW with some higher wind speeds on Lone Mountain near Big Sky. In the Bridger Range, temps range from 5-10 degrees F, and winds are gusting 20-30 mph at all elevations.
Clouds will increase today as a trough of low pressure (aka a “storm”) drops into Montana from Canada. Temperatures should rise into the teens F, and winds should increase and blow from the W 15 mph with gusts 30-40 mph. The strongest winds of 60-70 mph will be further north along the Rocky Mountain Front. Snow should start falling tomorrow morning and there should be 3-5 inches of new snow by Saturday
A large ridge of high pressure parked over the Pacific continues to bring strong winds, cold air, and some snow from Canada into the forecast area. Yesterday strong winds gusting 50-60 mph blew generally from the west (some WSW and some WNW).
This morning at 6 a.m. it's snowing with 6 inches near the Ridge at Bridger Bowl, 2-3 inches near Cooke City, and a trace to 1 inch in most other places. Winds eased since yesterday and are blowing from the NW 10-15 mph gusting to 30 mph. Temperatures are in the single digits F.
Today mostly during the morning hours another few inches should fall in the mountains near Bozeman, Big Sky and maybe Cooke City. Snowfall should end mid-morning but clouds will linger over most areas. Winds from the NW should ease by afternoon but continue bringing cold air. High temperatures will only rise a little bit reaching 10 deg or the low teens F at the most.
This morning, mountain temperatures range from –11 F on Lionhead Ridge to a balmy +13 F on Flanders Mountain in the Northern Gallatin Range. Winds are 15-30 mph from the southwest through the northwest, and there is no new snow.
Today, high temperatures will be 5-10 degrees F near Island Park, West Yellowstone and Cooke City, with teens to low 20s F across the rest of the forecast area. Winds will be 10-25 mph from the west and southwest. Snowfall overnight will bring a trace to 1” to the mountains near West Yellowstone, Big Sky and Bozeman and 2” to the mountains near Cooke City.
