#northern-rockies

#northern-rockies

A warm, moisture-loaded pattern dominates the Northern Rockies this week, favoring deep but often dense midweek snow in the BC interior and Tetons, then gradually shifting to colder, higher-quality powder in the Canadian Rockies as we head into the weekend. Snow levels start quite high with this event, so the best accumulation focuses on upper-mountain terrain, especially at Big White, Revelstoke, and the higher Teton and southwest Montana peaks, while valley bases see more rain or heavy, wet snow.

General Pattern: La Niña conditions are expected to persist through winter, favoring a split temperature pattern across the US. Colder Areas: Below-normal temperatures are favored from the Upper Mississippi Valley, Northern and Central Great Plains west to the Northern Rockies and parts of the Pacific Northwest. Early December is likely to be colder-than-normal in the Midwest and northern states due to atmospheric patterns including a negative Arctic Oscillation and a modulating Madden-Julian Oscillation.