Advisory Archive
A ridge of high pressure is firmly parked over the western US. At 4 a.m. temperatures are in the low 20s under clear skies. Today will be a repeat of yesterday, but slightly warmer: sunny skies, westerly winds 15-30 mph and mountain temperatures reaching the upper-thirties. Sunburns are a greater threat today than avalanches.
At 4 a.m. mountain temperatures are in the 20s F and winds are blowing 15-25 from the WNW. Today, temperatures will warm into the low 30s F under partly to mostly cloudy skies and winds will continue to blow 15-25 from the WNW. There is no chance for precipitation over the next 24 hours.
A ridge of high pressure off the pacific coast is producing a northwest flow over our area. Unfortunately, there is little moisture associated with this flow meaning southwest Montana will remain dry today. Currently, temperatures are in the high teens to low twenties F and winds are blowing 15-25 out of WNW. Today, temperatures will climb into the upper twenties F to low thirties under partly cloudy skies and winds will remain 15-25 out of the WNW. No snow is expected over the next 24 hours.
Yesterday winds were gusting 40-60 mph but eased some this morning blowing westerly 10-30 mph. A slight inversion was in place this morning with mountain temperatures near 20 degrees F and valley temperatures in the teens F and just below zero F near West Yellowstone. A NW flow at the leading edge of a ridge of high pressure may bring a few clouds over SW Montana today. Temperatures will climb into the high 20s and low 30s F, and westerly winds will blow 10-30 mph.
A ridge of high pressure over the Pacific Northwest is responsible for warm, sunny and windy conditions over SW Montana. This morning mountain temperatures were in the mid 20s F with valley temperatures in the mid teens F. Westerly winds were averaging 15-30 mph with gusts reaching 40-50 mph. Winds will remain strong today and temperatures should approach 32 degrees F, but some places like the Bridger Range could see temperatures in the 40s F.
Yesterday was warm and sunny with more of the same forecasted today. This morning mountain temperatures were near 20 degrees F and winds were blowing from the SW to NW 5-15 mph gusting 25-30 mph. With more sunshine today, temperatures will be in the low 30’s F. Winds will remain westerly and wind speeds shouldn’t change much.
Early yesterday morning another inch fell around Big Sky before clouds lifted and high pressure moved in. Temperatures this morning are in the teens up north and single digits in the southern ranges. West to northwest winds have been blowing 35-50 mph in the Bridger Range and up Hyalite Canyon, but are 15-30 mph elsewhere. Today will be mostly sunny with mountain temperatures reaching the low twenties as westerly winds weaken to 15-25 mph. No new snow is expected for the next several days.
On a northwest flow Bridger Bowl picked up six inches last night with four inches around Big Sky and 1-3 inches everywhere else. Mountain temperatures are near ten degrees, except around Cooke City and West Yellowstone where they are minus five. Winds are west to northwest at 20-35 mph. High pressure shoves its way in this afternoon and will stay for a few days. An additional trace to one inch may fall this morning as temperatures warm into the high teens under clearing skies. Winds will remain steady at 20-30 mph out of the northwest.
Since yesterday morning a trace of new snow fell in the northern mountains while the southern mountains remained dry. Currently, temperatures are frigid at 10-15 below zero F and winds are blowing 5-15 mph out of the WNW with the exception of the Bridger Range where winds are blowing 15-25 mph. Today, the mercury will climb into the single digits above zero under partly to mostly cloudy skies. Winds will remain out of WNW blowing 10-20 mph. There is a chance the winds could pick up this afternoon as a storm approaches from the north. Snow is likely tonight with 2-4 inches possible in the mountains around Bozeman and Big Sky. The mountains around West Yellowstone will see 1-3 inches and Cooke City will likely be the winner picking up 4-6 inches.
Over the past 24 hours a trace to one inch of snow has fallen in the mountains. This morning temperatures are ten to fifteen below zero F and winds are light out of the NW blowing 5-10 mph. Today, high temperatures will be in the single digits above or below zero F under mostly cloudy skies and winds will stay light out of NW. A weak weather disturbance will bring light snow showers to the mountains where a trace to one inch is possible. A stronger system is forecasted to impact the area tomorrow night into Tuesday.