Language selection

Government of Canada / Gouvernement du Canada

Search

Weather shortcuts

Northern Georgian Bay

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 08 March 2026

Today Tonight and Monday.

Wind west 20 knots backing to southwest 15 early this morning then increasing to southwest 20 late this morning. Wind increasing to southwest 25 to 30 near noon then diminishing to south 15 early this evening. Wind increasing to southwest 25 to 30 near midnight then diminishing to southwest 20 Monday afternoon. Wind diminishing to variable 10 Monday evening.

Scattered showers or scattered flurries early this morning this afternoon and this evening.

Waves

Issued 03:00 AM EDT 08 March 2026
Today Tonight and Monday. Mainly ice covered.

Extended Forecast

Issued 03:00 AM EDT 08 March 2026
Tuesday Wind variable 15 knots increasing to northeast 15 to 20 in the afternoon then becoming northeast 20 late in the day.
Wednesday Wind northeast 20 knots becoming variable 20 late in the day.
Thursday Wind northwest 25 knots diminishing to northwest 15 late in the day.

Stay connected

ATOM

List of Official Text Forecasts
Resources

Weather Conditions

Skip Image

Zoom-in to make a selection

Map of Great Lakes - Lake Erie and Lake Ontario marine weather areas CFB Trenton Port Colborne - 45142 Hamilton Munro Int'l Airport Oshawa Executive Airport Port Stanley - 45132 Lake Nipissing - 45152 Point Petre Georgian Bay - 45137 Toronto City Centre Airport Lake Simcoe - 45151 South Georgian Bay - 45143 Prince Edward Point - 45135 Peterborough Municipal Airport South Lake Huron - 45149 Collingwood Lake St Clair - 45147 Grimsby - 45139 Goderich Lagoon City Kingston Airport Muskoka Airport Parry Sound Harbour Grenadier Island Lake Simcoe Regional Airport Wiarton Airport Brockville Western Islands Cove Island Great Duck Island North Channel - 45154 Sarnia Chris Hadfield Airport Gore Bay-Manitoulin Airport Tobermory Harrow AAFC Long Point North Bay Airport Port Weller St. Catharines / Niagara District Airport Greater Sudbury Airport Southeast Shoal Vineland Station Port Colborne Erieau Cobourg Sault Ste. Marie Airport Windsor Airport Welland-Pelham Killarney Ajax - 45159 Point Pelee Burlington Lift Bridge
Legend:
buoy Buoy
land station Land Station
Ice Conditions

*Ice Forecast and Warnings also apply to U.S. waters

Ice Forecasts

Issued 12:00 PM EDT 16 May 2025 Forecasts have ended for the season.
Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EDT 8 March 2026 Today Tonight and Monday At 3:00 a.m. EDT today trough located on a line northeast-southwest
over the St. Lawrence River.
By 3:00 a.m. EDT Monday departing trough located on a line
northeast-southwest over Nova Scotia.

At 3:00 a.m. EDT today ridge located on a line northeast-southwest
over northeastern Ontario.
By 3:00 a.m. EDT Monday weakening ridge located on a line
northeast-southwest over the Eastern Seaboard.

At 3:00 a.m. EDT today low 985 mb located over the Ontario -
Manitoba border.
By 3:00 a.m. EDT Monday low 984 mb located northeast of James Bay.

By 3:00 a.m. EDT Monday approaching low 988 mb located near Lake
of the Woods.

Great Lakes - Lake Erie and Lake Ontario Area

Another Region

Marine Weather for Canada

Weather shortcuts


How to use
  • Add to shortcuts
    • Go to the desired page on the site, open the Weather shortcuts menu and click on the "Add to shortcuts" button
    • Page name will display in the "Add this page" window, the name can be changed by highlighting the text and entering the desired name
    • Click on the "Save" button to add the link to the list
    • Click on the "X" button to close the panel
  • Delete a link
    • Click on the "Organize shortcuts" button
    • Select the link to delete
    • Click on the "Delete" button to remove the link from the list
    • Click on the "Close" button to save the change
  • Move a link up/down the list
    • Click on the "Organize shortcuts" button
    • Click and hold the link and move to new location in the list
    • Click on the "Close" button to save the change
  • Rename a link
    • Click on the "Organize shortcuts" button
    • Select the link to rename
    • Click on the "Rename" button and change the link name
    • Click the enter or tab key
    • Click on the "Close" button to save the change
  • Keyboard navigation
    • Use the Tab key to move to a button or link
    • Use the Enter key to click on buttons or links
    • Organize shortcuts navigation
      • Use the ↑ Up key to select the link above. If none are selected, it will select the first link.
      • Use the ↓ Down key to select the link below. If none are selected, it will select the last link.
      • Use the Page Up key to move a selection up in the list.
      • Use the Page Down key to move a selection down in the list.
  • Restore default list

    Warning: Clicking on the button below will remove all your customized links.

Customized Weather shortcuts

Save your customized list as a bookmark.

Copy/paste or click on the link below then when the page displays, you can bookmark the page using the web browser. Bookmarking your customized list will allow you to access it even if the local storage on your device is erased.

Features

New: Colour-coded weather alerts

Learn more about weather alerting in Canada

Feedbackabout this web site
Date modified: