Third Evacuation in Three Years: Place Glacier's 20-Year Flood Threat Reshapes Sea to Sky Property Risk

The Squamish-Lillooet Regional District issued immediate evacuation orders Thursday for roughly two dozen properties in the Poole Creek and Gates Lake area, approximately 30 kilometres north of Pemberton in southwest British Columbia. The order cited "immediate danger to life and safety" from potential overland flooding and debris flows originating from Place Glacier. This marks the third consecutive year that residents have faced displacement due to glacial outburst floods, with similar events occurring in 2024 and 2025. Monitoring systems indicated the glacial lake had reached volumes comparable to last year's outburst, triggering RCMP-assisted evacuations as officials warned that local accommodation capacity was severely limited.

University of Northern British Columbia professor Brian Menounos, affiliated with the Hakai Institute and part of the monitoring team, explained that climate-driven glacier thinning has fundamentally altered the hazard profile of the region. Prior to 2024, the lake drained within days without significant consequence, but as the ice surface has lowered, the basin's capacity to collect water has expanded dramatically. When meltwater and rainfall accumulate to approximately 30 metres deep, pressure forces the water beneath the glacier, creating sudden downstream flooding. Menounos noted that simple modelling suggests this cyclical threat will continue for the next 10 to 15 years, potentially extending to two decades, as the glacier geometry remains unstable.