On February 10, 2026, a winter storm around St. Theresa Point, Manitoba, disrupted flights at St. Theresa Point Airport (CYST), producing cancellations and delays. FlightAware’s airport weather page and NAV CANADA aviation forecasts warned of heavy snowfall and gusty winds that reduced visibility below safe landing minimums; forecasts indicated gusts could exceed 40 km/h and the low-visibility ceiling was expected to persist into the evening.
The disruption affects residents who rely on air travel for medical appointments and for deliveries of fresh food and fuel. Scheduled turboprop services to the community have been suspended due to the weather; carriers that serve the route, including Perimeter Aviation and Northway Aviation, are among those affected. Forecasts suggested conditions might not improve until at least 22:00 CST on Tuesday.
The Four Arrows Regional Health Authority — which oversees medical travel for the Island Lake communities — is monitoring the situation because flight delays can affect patients awaiting transfers to hospitals in Winnipeg. Manitoba 511 lists the regional winter road as open, but local reports and forecasts warn of whiteout conditions on the ice trails that make driving hazardous.
St. Theresa Point Airport’s single runway is a crushed-rock/gravel surface with published visibility minimums for safe operations; current blowing snow has reduced conditions below those minima, grounding scheduled passenger and freight service. Community leaders are watching fuel and supply levels closely to ensure essential services remain available while the storm continues.
