GNFAC Avalanche Forecast

On Monday morning, mountain temperatures are in the 20s F at upper elevations near Island Park and Cooke City and in the 30s to low-40s F across the rest of the advisory area. Winds are all over the map, blowing 5-15 mph from the south, west, and north. It is raining in Bozeman, Big Sky, West Yellowstone and Island Park, with 1-2” of snow at higher elevations in Island Park and C

This morning temperatures are low 30s to mid-40s F with high 20s to mid-30s F near Cooke City. Wind is out of the south-southwest at 5-10 mph with gusts of 15-25 mph. There is no new snow. Today, under mostly sunny skies, temperatures will reach high 40s to low 60s F, and wind will be 5-10 mph from various directions. Clouds will increase tonight, and in some places skies might clo

Skies are blue and there is no new snow. Mountain temperatures are in the 30s and 40s F this morning. Winds are out of the southwest and west at 10-20 mph with 30-50 mph gusts. High temperatures today will be a few degrees warmer than yesterday, reaching well into the 50s F in many mountain areas. Winds will be 10-15 mph out of the southwest. Today will be mostly sunny, with chance

Mountain temperatures this morning are in the mid-30s, having not dropped below freezing overnight. There is no new snow. Winds are out of the southwest and west at 10-15 mph around Bozeman, Big Sky, and Cooke City and 25-40 mph with 45 mph gusts around Island Park and West Yellowstone. High temperatures today will be in the 40s and 50s F. Moderate to strong southwest and west wind

Mountain temperatures are in the 20s to low 30s F this morning, with 5-15 mph wind from the west to southwest, and there is no new snow. Today, temperatures will be in the 40s to low 50s F under mostly sunny skies. Winds will be 5-15 mph from the west to southwest.

Since yesterday morning the Bridger Range, Hyalite and Big Sky received 3-7” of new snow, and 1-3” fell elsewhere. Wind has been out of the northwest at 10-20 mph with gusts of 25-40 mph. Temperatures are teens to 20s F. Today, temperatures will reach mid-30s F under clearing skies, and wind will be west-northwest at 10-15 mph with gusts to 25 mph. The next chance for a few inc

The Bridger Range has 8-19” of new snow since yesterday morning, Hyalite got 7”, Cooke City and Big Sky got 4”, and 1-3” fell near West Yellowstone and Island Park. Temperatures are teens to 20 F. Yesterday wind was west-northwest at 15-25 mph with gusts of 35-50 mph, and overnight wind decreased to 5-15 mph with gusts of 15-30 mph. Today temperatures will reach high 20s to

Temperatures fell below freezing last night for the first time in several days. A dusting to an inch of new snow fell around Bozeman, Big Sky, and Cooke City, with 2-3” around West Yellowstone and Island Park. After blowing hard overnight during the frontal passage, winds are now 5-15 mph out of the west. Winds will pick back up this afternoon. High temperatures will be in the 20

Mountain temperatures this morning are generally above freezing, in the 30s and 40s F. Winds are 15-20 mph with 30-60 mph gusts out of the SW-SE. Breezy southerly winds will continue today. High temperatures will be in the 40s and 50s F, very similar to yesterday’s. The sun may make a brief appearance in places this morning, but it will mostly be cloudy with a good chance for a s

Under mostly cloudy skies mountain temperatures are a few degrees above freezing and winds are from the SW-SE at 15-35 mph. Today is forecasted to become windier and still warm with cloud cover and intermittent sun. Temperatures will rise to the high 40s and low 50s before cooling tonight and a changing weather pattern back to winter(ish).