Advisory Archive
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.
In the past 24 hours an inch of new snow has fallen from the Yellowstone Club to West Yellowstone while Cooke City got three inches. Winds have lessened to 15-30 mph out of the WSW from yesterdays breezy 35-50 mph. Temperatures are in the low teens which is where they will remain today. A moist southwest flow will bring mostly cloudy skies with the southern half of our advisory area getting an inch or two of snow overnight. An approaching cold front will increase winds tonight with snow and plummeting temperatures forecasted tomorrow.
Since yesterday afternoon a surprise storm has deposited 6-8 inches of snow in the mountains around Big Sky, West Yellowstone and Cooke City. The Bridger Range and northern Gallatin Range picked up 2-3 inches. Winds have been blowing out of the W-SW at 15-30 mph with gusts reaching close to 40 mph in Hyalite and Cooke City. Mountain temperatures are currently in the mid-teens to mid-twenties F and will rise into the low 30’s F by this afternoon. Winds will remain strong today out of the west delivering light bands of moisture to southwest Montana. An additional 1-2 inches of snow is possible by this afternoon. A more potent storm is forecasted to impact our area Wednesday and Thursday.
A strong southwest flow is keeping temperatures warm and is producing gusty ridgetop winds. Currently, mountain temperatures are hovering around freezing, with the exception a few locations in the north where temperatures have climbed into the 40’s F. Winds are blowing out of the W-SW at 15-30 mph with gusts over 50 mph being recorded at the Hyalite weather station. Today, temperatures will climb into the 40’s under mostly cloudy skies and winds will remain strong out of the SW. The mountains around West Yellowstone and Cooke City could see a few light snow showers this afternoon, but the no real accumulations are expected.
A ridge of high pressure has produced perfect flying conditions for Santa. This morning mountain temperatures are in the mid-twenties to low thirties F and wind are blowing out of the W-SW at 10-25 mph, with the exception of the Big Sky where they are blowing closer to 30 with gusts up to 50 mph. Today, a strong southwest flow will raise temperatures into the high thirties F and winds will stay gusty out of the W-SW. Despite a little wind, today should be a warm and beautiful day to get out and play with the new toys.
Yesterday was a beautiful day to be in the mountains, and it looks like Santa won’t need Rudolph to guide his sleigh tonight as dry weather should continue. This morning temperatures were in the high teens F and westerly winds were blowing 5-15 mph. Today will see lots of sunshine as temperatures warm to near 32 degrees and winds will remain light. The Grinch can’t steal Christmas, but it looks like he took our snowfall for the moment. Measureable snow accumulations shouldn't come until early next week.
Overnight the mountains near Cooke City and West Yellowstone received 3-4 inches of snow while all other areas received 1-2 inches. Temperatures this morning hovered near 20 degrees F with westerly winds blowing 5-10 mph. Today temperatures should rise into the mid-upper 20s and winds will remain calm. Mostly cloudy skies will produce some snow in the southern parts of the advisory area but only a trace should accumulate. Further north, skies will have a mix of sun and clouds. The next chance of snow doesn’t arrive until after Christmas.
Yesterday’s weather was beautiful and uneventful: sunny skies, calm winds and temperatures in the low 20s. In the next 24 hours small weather disturbances will create mostly cloudy skies in the southern mountains and partly cloudy up north. Winds will remain light out of the southwest at 5-10 mph as temperatures rise into the 20s from their current readings in the teens. Some flurries may fall around Cooke City and West Yellowstone, but it should measure less than an inch. The weather through the Christmas weekend is looking dry and warm—no gifts of epic pow from Santa this year.
Today is the shortest day of the year. From this date forward we’re starting our climb toward summer, but with a forecasted high of 20F today I’m not digging out my flippity-flops just yet. Yesterday, strong west to southwest winds blew 30-40 mph before calming last night to 10-15 mph. Under clear skies mountain temperatures are near 10F. Some clouds will penetrate our southern mountains, but the next 24 hours will be a quiet weather pattern of light winds and no precipitation.