Advisory Archive
Warm weather is the word this morning with temperatures mostly in the mid to high 20s F. Westerly ridgetop winds calmed slightly from yesterday blowing 10-25 mph near Bozeman and 5-15 mph elsewhere. Yesterday afternoon some areas received a brief shot of freezing rain followed by a dusting of snow. More precipitation should come this afternoon possibly starting as rain before changing to snow. By tomorrow morning 2-3 inches should accumulate with more on the way. Today will have high temperatures near 30 degrees F with westerly winds blowing 10-15 mph.
An additional inch or two of snow fell in the past 24 hours. This morning temperatures were in the low 20s F at 9000ft except near Cooke City and West Yellowstone where temperatures were closer to 10 degrees F. Only slightly lower elevations have temperatures approaching 30 degrees F. Strong winds yesterday continued this morning blowing 15-30 mph from the W. Warm air advection and tight pressure gradients in the weather models mean today’s weather will be warm and windy with temperatures in the high 20’s to low 30’s and 15-30 mph W winds. Some snowfall is expected, but no more than an inch should accumulate. This weekend, however, looks promising for snow and colder weather.
At 6 a.m. the Yellowstone Club is showing ten inches of new snow. All the other ski areas got six inches with other sites also reading 3-6 inches. Temperatures warmed into the teens as wind speeds increased out of the southwest averaging 20-30 mph with gusts reaching 40-50 mph. Under mostly cloudy skies mountain temperatures will climb into the low 20s today with strong southwest winds. More flurries this morning and again later tonight will drop an additional two to four inches.
Under clear skies, temperatures this morning are in the single digits with westerly winds blowing 15-25 mph at the ridgetops. Increasing clouds, increasing winds and an increasing chance of precipitation are on our plate for the next 24 hours. A northwest flow will push in clouds later today as mountain temperatures climb into the upper teens and winds blow W-NW at 20-30 mph. By morning the mountains will have 1-3 inches of new snow with showers continuing into Wednesday.
A moist northwest flow has deposited 8-10 inches of light density snow in the Bridger Range, 2-3 inches in the northern Madison and Gallatin Ranges, and 1-2 inches elsewhere. At 4 am mountain temperatures are in the single digits and winds are blowing out of the W-NW at 5-15 mph with gusts in the 20s. Today snow showers will taper off and temperatures will climb into the high teens under mostly cloudy skies. Winds will continue to blow out of the W-NW at 5-15 mph throughout the day and dry conditions will persist over the next 24 hours.
Under cloudy skies a trace of snow has fallen this morning. In the northern mountains temperatures are in the single digits while around West Yellowstone and Cooke City the temperatures are zero to 10 below. Winds are from the west to northwest averaging 15-20 mph with gusts in the 30s. Today will remain cloudy with temperatures warming into the teens as northwest winds blow 20-30 mph. Small weather disturbances will bring flurries, but accumulations will be less than an inch by tomorrow morning.
It’s another cold morning with temperatures mostly in the negative single digits F though a few places near West Yellowstone and Cooke City reached the negative teens F. Winds increased since yesterday and were blowing 10-20 mph from the western half of the compass this morning. These winds were mostly confined to ridgetops except in the Bridger Range where they were blowing at all elevations. Today will have partly to mostly sunny skies. High temperatures will be about 10 degree F and winds will blow 10-20 mph from the W and NW. No significant snowfall is expected in the immediate future.
Happy New Year’s Eve! It’s cold this morning and shouldn’t warm up much until next year. Since yesterday only a trace to two inches of new snow fell. Temperatures were in the negative teens F this morning though a bit warmer near West Yellowstone with winds blowing 5-15 mph from the eastern half of the compass. Mostly cloudy skies will prevent much warming and temperatures should rise to near 0 F. Light winds will blow 5-10 mph and shift to the north.
The final storm of 2010 deposited an additional 7-8 inches of snow in most areas except near West Yellowstone where an additional 10-12 inches fell since yesterday morning. Although light snowfall will continue today, only an inch or two should accumulate. This morning temperatures had dropped to the single digits F near West Yellowstone and around -5 degrees F everywhere else. Winds were blowing 5-15 mph from the N and E. Today temperatures should drop further to almost -10 degrees F with cold E and NE winds blowing 10-15 mph.
Snow is falling this morning and will continue into tonight. At 6 a.m. 8-10 inches fell around West Yellowstone; 5-7 inches around Cooke City and the Big Sky area; and 2-4 inches in the Bridger Range and Hyalite. Winds have increased out of the southwest at 20-40 mph with mountain temperatures in the teens. Snowfall will continue today and taper off tonight as temperatures dive to near zero by tomorrow morning. I expect another 3-6 inches to fall in the north and 6-10 inches in the southern ranges. Southwest winds will remain moderate throughout the storm.