Weather
The BC/Alberta snow forecast favors a modest, colder late-week reload, with the best high-terrain totals around Banff Sunshine and Lake Louise through Sunday. Expect scattered, elevation-dependent snow early, a more organized Friday-to-Sunday wave, and then a lower-confidence stretch of mostly light showers next week. Confidence is strongest from Wednesday, May 13, through late Sunday, May 17, before model spread increases. Banff Sunshine remains open for late-season lift-served turns, while the other resorts are closed and are better read as high-terrain weather markers.
Wednesday and Thursday look mixed and uneven, with the individual models diverging on where early snow showers focus. Timing is scattered, intensity favors a few higher western and Continental Divide locations, and snow levels are generally high during the early snow at 1,700-2,200 meters. Snow quality will be dense to wet where it falls, with SLRs mostly in the 4-8 range. Wind impacts are also uneven: most areas look manageable, but exposed terrain around Big White can see snowy-period gusts near 70-90 km/h during the early burst.
The late-week wave has better timing agreement from Friday afternoon through Saturday evening, then tapers through Sunday. The individual models converge more on timing and snow levels, but they still diverge on intensity, especially between the Banff high country and the lighter western and southern areas. Snow levels should settle closer to 1,300-1,500 meters for the main part of the event, supporting denser to moderate snow with SLRs mostly around 8-11. Published totals through late Sunday are strongest at Banff Sunshine and Lake Louise, where the upper-end ranges reach 15-25 cm and 13-20 cm. Winds look lighter for most areas during the main wave, with Big White still the breezier exception.
After Sunday night, confidence drops from Monday, May 18, through early Saturday, May 23, as the individual models diverge again on timing and intensity. The most realistic setup is a quieter stretch with occasional light mountain showers, higher snow levels around 1,600-2,100 meters when precipitation appears, and generally light to moderate winds. A few solutions try to bring small pockets of snow back into the high terrain Monday to Wednesday and again near Friday, but the conservative expectation is mainly trace amounts to a few centimeters, with isolated pockets near 5-10 cm only if the wetter ideas verify.
BC/Alberta Snow Forecast Resort Totals (Wed May 13 – Sun May 17)
- Banff Sunshine – 15-25 cm
- Lake Louise – 13-20 cm
- Big White – 10-15 cm
- Mount Norquay – 6-9 cm
- Kicking Horse – 4-6 cm
- RED Mountain – 3-5 cm
- Revelstoke – 2-3 cm
