Language selection

Government of Canada / Gouvernement du Canada

Search

Weather shortcuts

Northumberland Strait

Warnings

Forecast

Marine Forecast

Issued 03:00 AM ADT 10 March 2026

Today Tonight and Wednesday.

Wind southwest 25 knots diminishing to west 15 this morning then becoming variable 10 to 15 this afternoon. Wind increasing to northeast 15 to 20 Wednesday morning then veering to east 20 Wednesday evening.

Periods of snow overnight. Snow Wednesday afternoon and evening. Visibility 1 mile or less in snow.

Temperatures plus 5 falling to minus 6 Wednesday evening.

Extended Forecast

Issued 03:00 AM ADT 10 March 2026
Thursday Wind southerly 25 to 30 knots.
Friday Wind west 30 knots diminishing to west 20.
Saturday Wind west 20 knots increasing to southeast 35 late in the day.

Ice Forecast

Issued 10:00 AM EDT 9 March 2026 Today Tonight and Tuesday 7 tenths first-year ice. 

[ Canadian Ice Service ]

Stay connected

ATOM

List of Official Text Forecasts
Resources

Weather Conditions

Skip Image

Zoom-in to make a selection

Map of St. Lawrence - St. Lawrence River marine weather areas Miramichi North Cape Port Menier Roberval Airport Normandin Mistook Jonquière CFB Bagotville Cap-Chat Île Bicquette Charlo North Bay Airport Yarmouth Airport Brier Island St. Stephen Saint John Airport Point Lepreau Greater Moncton Roméo LeBlanc Int'l Airport Miscou Island Kouchibouguac Kouchibouguac Grand Manan Fundy Park (Alma) Bas Caraquet Bathurst Airport Lac Saint-Pierre Pointe-Noire Île d'Orléans Pointe-des-Monts L'Assomption Sept-Îles Airport Pointe Claveau Pointe de l'Islet Trois-Rivières Airport L'Isle-aux-Grues Deschambault Île Rouge Montréal-Trudeau Int'l Airport Montréal Metropolitain Airport Lac Memphrémagog Sainte-Anne-de-Bellevue Cap-Rouge Saint-Anicet Baie-Comeau Airport La Pocatière Pointe-au-Père New Carlisle Mont-Joli Airport Gaspé Airport Lake Nipissing - 45152 Rivière-la-Madeleine Beauport Cap-d'Espoir
Legend:
buoy Buoy
land station Land Station
Ice Conditions

Ice Forecasts

Issued 10:00 AM EDT 9 March 2026 Today Tonight and Tuesday

Ice Edge

Ice edge estimated from 4420N 6720W to 4430N 6635W to 4330N 6615W to
4315N 6515W to 4600N 5749W to 4708N 5834W to 4630N 5615W to
Newfoundland near 4640N 5530W. Sea ice north of the ice edge.

Ice Coverage

7 tenths first-year ice.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM ADT 10 March 2026 Today Tonight and Wednesday At 3:00 a.m. ADT today trough located over the St. Lawrence River.
By 10:00 a.m. ADT today departing trough located over southeastern
Labrador.

At 8:00 p.m. ADT tonight building high located over Quebec.
By 8:00 p.m. ADT Wednesday departing ridge from high located from
Labrador to Newfoundland.

At 8:00 p.m. ADT tonight approaching low located west of the
Maritimes.

Marine Weather Statement

Issued 2:12 AM ADT 10 March 2026 A trough of low pressure will pass just north of the marine district
this morning. Strong to gale force winds ahead of the trough are
expected to diminish through the day as it pulls away and a weak
ridge builds into the district.

Marine interests are advised that a gale warning is in effect for
Anticosti - northwestern half.

St. Lawrence - St. Lawrence River 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: