Conservation officials are warning of flooding and erosion along the Lake Huron shoreline in the coming days.
The Ausable Bayfield Conservation Authority says the potential flooding will be prompted by a large and intense low-pressure system is forecast to move into southern Ontario Monday.
Winds are expected to strengthen to over 70 kilometres an hour.
The extended duration of the storm will result in high waves hitting shoreline areas for a prolonged period of time.
In addition to flooding of low-lying coastal areas, continued erosion of the lakeshore bluff and beach areas is expected.
Residents and municipal officials are reminded to stay well back from breaking waves, and also to stay away from top-of-bluff areas during and after the storm, in case there has been any movement of the lake bank.
The flood message from the ABCA is in effect until 9:00 a.m. Thursday.