With its core moving through inland BC, an upper-level storm system brushed the BC/AB Divide with numerous flurries over the past 24-hours. As of Sunday AM, 11 cm has fallen at Castle Mountain, 6 cm at Sunshine, and 3 cm at Marmot Basin. A ridge slowly builds on Sunday, but isolated flurries hold on along the Divide. Colder Mon and Tues, then a SW flow on Weds brings more snow and warmer temps.

A cold front has moved through the state bringing light to moderate accumulations into Sunday morning (see list below). Snow will continue across SW Montana on Sunday adding several more inches. Weak high-pressure builds on Monday, but with an active NW flow aloft, snow showers with chances of daily light accumulations continue through the middle of the week. Dry from Thursday through next Sunday.

Extreme winds and heavy snow are beginning to fall over the Sierra on Saturday morning. Strong winds and significant snow are also falling in the Cascades and western BC. While deep totals will be found initially on Saturday, strong winds continue. Idaho, Wyoming, and Utah grab decent leftovers Miday Saturday to Sunday. 12-18 inches are likely in many areas. Chase wisely due to the wind.

A storm remains on track for the West from Friday to Sunday with the deepest snow totals favoring the Sierra, Cascades, BC Coast Range, and Northern Rockies. A weaker storm will move across the West early next week, followed by a warming/drying trend through Christmas. The East will see a mild pattern with more rain than snow through early next week, followed by a colder pattern late next week.

Thanks for reading this summer! For the rest of this week, a cold front moving across the Central Rockies will bring showers & t-storms to WY, CO, & NM Wed-Thu while the West Coast states will see a late-season heat wave. Next week, isolated to scattered showers & t-storms develop across the West with continued mild temps. Heading into mid-month, the PNW will trend wetter and cooler.