Marine Forecasts for the Great Lakes and St. Lawrence River (On)
* NOTE: Corrected and/or amended bulletins are listed first *
FQCN13 CWTO 171625 AAA Updated marine forecasts for the Canadian portion of the Great Lakes and the Ontario portion of the St. Lawrence River issued by Environment Canada at 12:25 p.m. EDT Thursday 17 July 2025 for today tonight and Friday. The next scheduled forecast will be issued at 6:30 p.m. EDT. Fog implies visibility less than 1 mile. Winds are for offshore areas. Nearshore winds may vary considerably due to shoreline effects. Note..The strong wind warning program is active from May 01 to November 30. Southern Georgian Bay. Strong wind warning in effect. Wind northwest 25 knots veering to north 20 early this evening then diminishing to northwest 10 near midnight. Wind becoming light near noon Friday. Showers this afternoon with a risk of thunderstorms. Western Lake Erie. Strong wind warning in effect. Wind northwest 20 knots veering to north 20 early this evening then diminishing to northeast 15 late overnight. Wind diminishing to east 10 near noon Friday then becoming light Friday evening. Eastern Lake Erie. Strong wind warning in effect. Wind southwest 30 knots with gusts to 35 veering to northwest 25 this afternoon then diminishing to north 15 this evening. Wind veering to northeast 15 early Friday morning then diminishing to light near noon Friday. Western Lake Ontario. Strong wind warning in effect. Wind west 25 knots with gusts to 35 veering to northwest 25 this afternoon then diminishing to north 15 near midnight. Wind diminishing to northeast 10 early Friday morning then becoming light late Friday morning. Scattered showers this afternoon with a risk of thunderstorms. Eastern Lake Ontario. Strong wind warning in effect. Wind west 25 knots with gusts to 35 veering to northwest 25 early this evening then diminishing to north 15 late overnight. Wind diminishing to light Friday morning. Scattered showers this afternoon with a risk of thunderstorms. Remainder unchanged. End $$$$^^ FQCN13 CWTO 171430 Marine forecasts for the Canadian portion of the Great Lakes and the Ontario portion of the St. Lawrence River issued by Environment Canada at 10:30 a.m. EDT Thursday 17 July 2025 for today tonight and Friday. The next scheduled forecast will be issued at 6:30 p.m. EDT. Fog implies visibility less than 1 mile. Winds are for offshore areas. Nearshore winds may vary considerably due to shoreline effects. Note..The strong wind warning program is active from May 01 to November 30. Western Lake Superior. Wind light becoming west 10 knots near noon then increasing to west 15 early this evening. Wind diminishing to southwest 10 early Friday morning. Eastern Lake Superior. Wind north 15 knots backing to west 15 this afternoon then diminishing to southwest 10 near midnight. Wind becoming light Friday afternoon. Scattered showers this morning. Whitefish Bay. Wind north 15 knots backing to northwest 15 near noon then diminishing to light this evening. Wind light Friday. Scattered showers this morning. Northern Lake Huron. Strong wind warning in effect. Wind northwest 25 knots diminishing to north 15 early this evening and to northwest 10 near midnight. Wind becoming light Friday morning. Showers this morning. Southern Lake Huron. Strong wind warning in effect. Wind northwest 25 knots diminishing to north 15 this evening and to northeast 10 late overnight. Wind becoming light Friday morning. Scattered showers this morning. Northern Georgian Bay. Strong wind warning in effect. Wind north 20 knots diminishing to north 15 early this evening and to northwest 10 near midnight. Wind backing to west 10 early Friday morning. Showers ending this afternoon with a risk of thunderstorms. Southern Georgian Bay. Strong wind warning in effect. Wind northwest 20 knots veering to north 20 early this evening then diminishing to northwest 10 near midnight. Wind becoming light near noon Friday. Showers ending this afternoon with a risk of thunderstorms. Lake St. Clair. Strong wind warning in effect. Wind west 20 knots diminishing to northwest 15 near noon then veering to north 15 early this evening. Wind diminishing to northeast 10 late overnight then becoming light near noon Friday. Wind becoming south 10 Friday evening. Western Lake Erie. Strong wind warning in effect. Wind west 30 knots diminishing to west 20 near noon then veering to north 20 early this evening. Wind diminishing to northeast 15 late overnight and to east 10 near noon Friday. Wind becoming light Friday evening. Eastern Lake Erie. Strong wind warning in effect. Wind southwest 30 knots diminishing to west 20 this afternoon and to north 15 this evening. Wind veering to northeast 15 early Friday morning then diminishing to light near noon Friday. Scattered showers this morning with a risk of thunderstorms. Western Lake Ontario. Strong wind warning in effect. Wind southwest 25 knots veering to northwest 20 early this evening then diminishing to north 15 near midnight. Wind diminishing to northeast 10 early Friday morning then becoming light late Friday morning. Scattered showers ending this afternoon with a risk of thunderstorms. Eastern Lake Ontario. Strong wind warning in effect. Wind southwest 20 knots veering to west 25 near noon then to northwest 20 this evening. Wind diminishing to north 15 late overnight and to light Friday morning. Scattered showers ending this evening with a risk of thunderstorms. Kingston to Cornwall. Strong wind warning in effect. Wind southwest 10 knots increasing to southwest 20 near noon then diminishing to northwest 15 early this evening. Wind diminishing to northwest 10 near midnight then becoming light early Friday morning. Scattered showers ending this evening with a risk of thunderstorms. End $$$$^^
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