Weather
A multi-wave pattern keeps BC/Alberta active through Tuesday morning, led by a stronger Sunday through early Tuesday storm, then a colder but less certain follow-up later in the week. The highest-confidence period supports widespread refreshes, with most mountains landing in about 4″ to 18″ by Tuesday morning and the best odds for quality turns from Sunday night into Monday. Winds look manageable in the Banff corridor but periodically strong on exposed British Columbia ridgelines, so snow quality should vary from dense to fair in the warmer interior periods to lighter snow as colder air settles in after Tuesday.
From Tuesday through Friday, guidance converges on frequent light snowfall timing in the interior British Columbia mountains, while the Banff-area hills see lighter, more stop-and-start coverage. Revelstoke and Big White have the steadiest signal for early-cycle refreshes, generally in the 3″ to 8″ range before the weekend, while Lake Louise trends around 2″ to 6″ and Banff Sunshine or Mount Norquay closer to 0″ to 3″. Intensity guidance diverges the most in southern British Columbia, where some solutions keep RED lighter and others produce more persistent bands. Snow-level guidance during snowfall is more clustered, mostly about 500 feet to 4,000 feet, with brief higher spikes near RED and Big White, while wind guidance ranges from mostly moderate to occasional stronger ridge bursts. SLRs are mostly 9 to 13 in the interior (dense to fair) and 12 to 16 in Alberta (moderate to light), so surface quality should improve with elevation.
Confidence is highest from Sunday into early Tuesday, when guidance converges on storm timing and widespread coverage but diverges on exact intensity and wind peaks by subregion. The core snowfall window is Sunday afternoon through Monday night, with a broad regional expectation of about 5″ to 12″, while favored pockets near Lake Louise and Revelstoke can push higher and RED remains the most variable at roughly 2″ to 8″. Snow-level guidance is fairly coherent in this main wave, generally near 600 feet to 3,700 feet in Alberta and near 500 feet to 4,000 feet in British Columbia, keeping most upper-mountain terrain snow-covered but allowing denser lower-mountain snow in warmer interior phases. SLRs mostly run 10 to 16 in Alberta and 8 to 14 in much of British Columbia, so expect moderate-to-light snow in the north and denser turns at times farther south. Wind confidence is lower than snowfall confidence, with exposed ridges in the Okanagan and southern British Columbia likely to see sustained 20 to 35 mph and higher gusts, while Alberta ridges are generally lighter.
After a brief Tuesday lull, confidence drops for Wednesday into Thursday as guidance diverges more sharply on timing, storm strength, snow levels, and ridge wind impacts. The conservative signal still supports another round of snowfall, but spread is wide enough that totals should stay broad for now, with a realistic regional add-on around 3″ to 10″ and upside toward 10″ to 16″ in wetter scenarios at Lake Louise, Banff Sunshine, Big White, and Revelstoke. Colder air is better established in this period, so snow levels trend down toward valley floors, and SLRs rise into the 14 to 19 range in Alberta (light to fluffy) and 13 to 17 in British Columbia (moderate to light). Wind signal also splits more in the extended range, but another stretch of gusty exposed terrain remains plausible in southern British Columbia.
Resort Forecast Totals (Tue Mar 03 – Tue Mar 10)
- Lake Louise – 9″ to 18″
- Revelstoke – 9″ to 18″
- Banff Sunshine – 7″ to 14″
- Big White – 7″ to 14″
- Mount Norquay – 5″ to 10″
- RED Mountain – 4″ to 7″
