Canadian Rockies Daily Snow

Heads up, there may be fresher snow! Read the latest Canadian Rockies Daily Snow

By Bob Ambrose, Forecaster Posted 1 month ago February 25, 2024

Incoming Pow - More Midweek

Summary

A deep upper-level storm will move into the Rockies on Sunday and meet up with modified arctic air to deliver periods of heavy snow through Monday across the range. Resorts along the Divide will see 20 – 30 cm, with 10 – 20 cm elsewhere by Monday evening. Colder Monday and Tuesday. Another, and possibly more potent storm system looms for Wednesday and Thursday.

Short Term Forecast

Sunday, February 25 – Monday, February 26

As of 7 AM Sunday, 24-hour snowfall reports from across the Alberta Rockies:\

•    Banff/Sunshine Village 24 cm
•    Lake Louise 19 cm
•    Norquay 12 cm
•    Castle Mountain 12 cm
•    Nakiska 7 cm
•    Marmot Basin 3 cm

Sunday will see periods of light snow continue during the morning hours becoming moderate into the afternoon hours, especially for areas along the Divide inside Banff NP (Sunshine, and Lake Louise). Gusty SW winds to 40 kph on ridges. 

Daytime (thru 4 pm Sunday) accumulations of 5 – 10cm at the aforementioned SkiBig3 resorts. Lighter amounts of 3 to 5 cm are likely at Marmot, Norquay, Nakiska, and Castle through last chair Sunday. Alpine highs (2000m) of -1C south at Castle, with -6C at Sunshine and Louise.   

The main feature of this storm system will occur overnight on Sunday as incoming Pacific moisture meets up with a very strong cold front. This will be further aided by a developing surface low over the foothills. West-facing slopes look to be favored for the deepest snowfall. Additional overnight accumulations of 10 – 15 cm are likely at Marmot Basin, Sunshine, Lake Louise, and Castle Mountain, with 5 – 12 cm at Nakiska and Norquay.  

Snowfall continues through the morning hours on Monday, then tapers off from north to south during the late morning hours as the cold airmass begins to dry things out. Another few centimeters are possible.

This is except for Castle Mountain, which will see snowfall continue through the day before tapering off Monday night. An additional 5 – 15 cm is possible. 

Much colder on Monday with alpine high temps -10C (Castle) to -19C (Marmot). Winds will also taper off on Monday.

Here’s the latest Blend of weather models (NBM 2.5 km) snowfall projections from Sunday morning through Monday evening.

 

Tuesday, February 27 – Thursday, February 29

A slight break in the action on Tuesday. Tuesday will also see the coldest temps of next week, with morning lows in the -22C to -25C range. Alpine highs -12C to -15C. N/NE winds.  

A series of weather systems will have excellent jet stream support transporting several strong waves of Pacific moisture into the Rockies on a SW flow aloft starting on Wednesday 2/28 and lasting through Thursday night. 
The SW flow will allow temps to quickly rebound to seasonal levels by Wednesday (alpine highs -4C to -8C). These warmer temps will also aid in better snow production as opposed to the drying effects of cold arctic air.  
Heavy accumulations in the 20 – 40 cm range from Wednesday morning through Thursday night keep trending positive on our latest model projections. Temps will be slightly colder on Thursday, with alpine highs -5C to -9C.    

Here’s the European model forecast of the upper-atmosphere over Western Canada from Wednesday through Thursday showing the progressive upper-trough ridden weather pattern.  

Extended Forecast

Unsettled skies, with daily chances of light accumulations, are likely for Friday, March 1, and Saturday, March 2. Temperatures look to be slightly below seasonal averages on both days. 

Ridging is portrayed to build in over the Rockies by Sunday, March 3, and looks to stick around into early the following week. Hints of another Arctic cold front are showing up for midweek (March 5 – 7). 
 
Thanks for reading. The next update will be on Tuesday morning. 

Until then,

Powder Out

Bob 

Announcements

Alberta Rockies Ski Resorts & Areas / North & South Regions are solely for Geographic References.

 North Region:  ( * denotes SkiBig3 resorts )

*Banff/Sunshine Village   

*Lake Louise Ski Resort 

*Mt Norquay     

Marmot Basin      

South Region:

Castle Mountain   

Fortress / KPOW Cat Skiing 

Nakiska 

Pass Powderkeg  

 

Latest Avalanche Conditions:

 

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About Our Forecaster

Bob Ambrose

Forecaster

Ever since his early days as a ski racer on the icy slopes of New Hampshire’s White Mountains, Bob chased his dreams of deep powder west to Tahoe and finally Montana. A self-proclaimed 'weather junkie', his passion for maps, charts, and forecasts always lead him to the best snow in Montana.

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