Boaters in Whitby, Ontario, should prepare for changing conditions on Lake Ontario this weekend as Environment Canada forecasts variable winds and building waves. While the lake is currently ice-free, those heading out on the water should monitor weather updates closely as the seasonal support for formal wind alerts is currently unavailable.
According to the latest marine forecast, winds are expected to remain variable at speeds up to 15 knots throughout the weekend. Waves are anticipated to be small on Saturday, but they will likely build to between 0.5 and 1 metre by Sunday afternoon. Boaters can also expect showers on Sunday, followed by patches of fog in the evening that may limit visibility on the water.
Although these wind speeds can create challenging conditions, Environment Canada has confirmed that the seasonal strong wind warning program for the Great Lakes has ended. This program, which typically triggers formal alerts for wind speeds between 20 and 33 knots, only operates annually from May 1 to November 30. Consequently, recreational boaters will not receive formal wind warnings during this current transition period, even if conditions reach those thresholds.
Safety experts advise that operators of smaller vessels, specifically those under 6 metres or 20 feet, should consider heading to shore if winds approach 10 to 12 knots. Conditions on large bodies of water like Lake Ontario can change rapidly, and waves often build quickly in response to shifting winds.
Those using the local waterfront should also be aware of ongoing infrastructure activity. The Fisheries and Oceans Canada led effort to remove contaminated sediments from the inner harbour has been active in the area. The Port Whitby Marina, operated by the Town of Whitby, continues to serve the local boating community near its location on Watson Street West.