Spring Snow Alert: Calgary and Alberta Foothills Brace for 20 cm Blanket This Long Weekend

Winter Returns for May Long Weekend

Calgarians planning to kick off the spring season with outdoor activities this Victoria Day long weekend may need to swap their hiking boots for winter parkas. Environment and Climate Change Canada (ECCC) issued a special weather statement late Thursday, warning that a significant late-season snowfall is targeting Calgary and the Alberta foothills, potentially disrupting travel plans for thousands of residents.

Heavy Accumulations Expected in High Terrain

The weather system is expected to move into the mountain parks and foothills starting Friday night. While the city of Calgary is bracing for a mix of rain and wet snow beginning Saturday morning, those traveling west on the Trans-Canada Highway face much harsher conditions. Forecasters indicate that higher terrain could see accumulations of up to 20 centimetres, creating treacherous driving conditions for those heading toward Banff and beyond.

According to the ECCC, the heaviest snowfall is slated for Saturday. While the precipitation may transition back and forth between rain and snow in lower elevations, the mountains will likely see a persistent whiteout for much of the weekend. This uncertainty in exact totals is common with spring storms, as ground temperatures play a critical role in how much snow actually sticks.

Impact on Travel and Safety

The timing of this storm is particularly impactful given the high volume of traffic expected on Alberta highways during the holiday weekend. Officials are advising motorists to prepare for winter-like conditions, suggesting that summer tires may not be sufficient for those crossing mountain passes. Travelers are encouraged to check the latest ECCC watches and warnings before departing and to carry emergency kits.

For Calgary specifically, the seven-day forecast indicates that flurries could persist through Sunday, May 17. While this “May-long” snow is often a punchline for Albertans accustomed to unpredictable weather, the potential for heavy, wet accumulation poses a risk to budding gardens and tree branches that have already begun to leaf out for the season.