A flood warning has been issued for Niagara.
The Niagara Peninsula Conservation Authority making the move with up to 35mm of rain expected to fall by Friday.
The warning focuses on Lake Ontario water levels, which are already at the highest level since 1918.
Officials say winds forecast across Lake Ontario may produce storm surge and wave action that could worsen the existing high water conditions.
During this time, there is an increased risk of backshore flooding, shoreline flooding and shoreline erosion resulting from storm surge and increased wave action.
Strong winds from the northeast are forecasted for Thursday, beginning in the early morning until late evening.
Residents living along Lake Ontario from Hamilton to Niagara-on-the-Lake are urged to exercise caution near the lakefront and to monitor meteorological conditions, paying particular attention to wind direction and speed.
There has been a significant amount of rainfall experienced this spring in the Lake Ontario basin.
The water level in Lake Ontario is presently at 75.86m.
Lake Ontario water levels are expected to continue to rise slightly through May.