Advisory Archive
Southwest Montana will receive a welcomed reprieve from the wind today as a ridge of high pressure builds over the region. Currently, winds are blowing out of the WSW at 15-30 mph and will continue at these speeds for the remainder of the day. Mountain temperatures are presently in the mid to high 20s and will rise into the 40s under mostly sunny skies. Another round of wind is expected to arrive tomorrow.
Freight train winds have been the main weather event over the past 24 hours. Currently, winds are cranking out of the WSW at 30-40 mph with gusts reaching over 50 mph in most mountain locations. Temperatures are in the mid 20s to low 30s F and will rise into the 40s by this afternoon. Skies will be partly cloudy today and winds will gradually decrease by this evening.
Yesterday light snowfall near Cooke City produced about 1 inch of new snow while all other areas were dry. Temperatures this morning were in the low 20s F near Bozeman and Big Sky where winds were ripping at 25-60 mph from the W. Further south temperatures were in the low teens F and winds were blowing 10-25 mph. Partly sunny skies will allow high temperatures to climb into the low 30s, but the main event will be winds which show no signs of slowing today.
Yesterday most places received an inch or two of new snow. This morning temperatures were in the mid teens F and winds continue to blow strongly from the W at 20-40 mph. Today should have fewer clouds than yesterday and a little more sunshine. Temperatures should reach the mid 20s F and winds will continue from the W blowing 15-30 mph.
With no temperature inversion this morning, it was colder in the mountains than in the valleys. Mountain temperatures were in the single digits F except near Cooke City and West Yellowstone where they were a few degrees below 0 F. Winds were blowing 15-30 mph from the W except in the Bridger Range where ridgetop winds were blowing 30-40 mph. Today a trace to 1 inch of snow should fall near Cooke City while all other areas will remain dry. High temperatures will be in the high teens to low 20s F and winds will continue unchanged.
Under clear skies mountain temperatures are in the single digits below zero this morning. In the Bridger Range winds shifted last night from the east to the west at 20-25 mph. West to northwest winds are blowing 15-25 around Big Sky, but are less than 10 mph around West Yellowstone and Cooke City. Mostly sunny skies will help raise temperatures into the low teens as high pressure builds this weekend. Temperatures will drop to near zero tonight with no likelihood of precipitation.
The final round of snow dropped 6-8 inches in the Bridger and northern Gallatin Ranges. Cooke City picked up 5 inches and 1-2 inches fell everywhere else. Winds blew out of the west to northwest at 25-50 mph yesterday morning before dramatically shifting to the east mid-afternoon. Following this wind shift, mountain temperatures dropped almost 20 degrees in three hours, bottoming out at minus two, while winds lessened and snowfall stopped. Winds are currently blowing 20-30 mph out of the ESE in the Bridger Range with other mountains having light, easterly, 10 mph winds. Today will be partly cloudy with mountain temperatures reaching the high single digits with no snowfall expected.
A strong NW flow has delivered yet another round of moisture to southwest Montana. Since midnight, 3-4 inches of new snow has fallen in the mountains around Big Sky and Bozeman, all other locations have picked up 2-3 inches. Winds have been ramping up with the arrival of this storm blowing out of the WNW at 20-30 mph with gust reaching into the 40s. Mountain temperatures are currently in the teens and will warm into the low 20s by this afternoon. Snow and wind will continue throughout the day with an additional 6-8 inches falling the north and 3-6 inches accumulating in the south.
Like the Packers running over the Steelers – potent weather events have marched right into southwest Montana, arriving on a strong NW flow. Since yesterday morning, the Bridger Range, northern Gallatin Range and mountains around Cooke City have received 10-12 inches of new snow. The mountains around Big Sky have picked up 5-6 inches, while the mountains around West Yellowstone have picked up 2-3 inches. Winds are currently blowing out of the WNW at 15-20 mph and will continue along these lines for the remainder of the day. Mountain temperatures are ranging from the single digits to low teens and will gradually climb into the mid 20s by this afternoon. Snow will taper off by this morning, but another round of moisture will move back into our region by early tomorrow. Another foot of snow is possible in the northern mountains by tomorrow evening.
A moist NW flow has delivered a welcomed shot of snow to southwest Montana. Since yesterday morning, 11 inches of snow has fallen in the mountains around Cooke City; 5-6 inches has fallen in the mountains around Bozeman and Big Sky and 3-4 inches has fallen around West Yellowstone. Winds are blowing out of the W-NW at 20-30 mph with ridgetop gusts reaching into the 40s. Temperatures are in the high teens to low 20s and will warm into the mid 30s by this afternoon. Snow will continue through the day with an additional 3-6 inches possible by this evening. Southwest Montana will see a break in the weather tonight, but another round of snow will impact our region Sunday night into Monday.
