Language selection

Weather shortcuts

Northumberland Strait - western half

Forecast

Marine Forecast

Issued 10:00 AM ADT 16 March 2026

Today Tonight and Tuesday.

Gale warning in effect.

Wind southeast 15 knots increasing to southeast 20 to 25 near noon then veering to southerly 30 early this evening. Wind increasing to south 35 early Tuesday morning then diminishing to southwest 25 Tuesday afternoon.

Flurries this morning. Periods of ice pellets or rain beginning this afternoon becoming periods of rain this evening. Fog patches forming early this evening and dissipating Tuesday afternoon.

Temperatures minus 3 rising to plus 8 near noon Tuesday then falling to plus 3 Tuesday evening.

Extended Forecast

Issued 03:00 AM ADT 16 March 2026
Wednesday Wind west 25 knots diminishing to west 15 late in the day.
Thursday Wind southerly 15 knots.
Friday Wind southerly 15 knots.

Ice Forecast

Issued 10:00 AM EDT 16 March 2026 Today Tonight and Tuesday Ice pressure warning in effect. 3 tenths first-year ice except 7 tenths first-year ice in the eastern section. Consolidated first-year ice along parts of the coasts. Strong ice pressure along parts of the Prince Edward Island coast developing overnight. 

[ Canadian Ice Service ]

Stay connected

ATOM

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 16 March 2026 Today Tonight and Tuesday

Ice Edge

Ice edge estimated from Nova Scotia near 4437N 6325W to 4419N 6258W
to 4602N 5807W to Newfoundland near 4740N 5814W. Sea ice north of
the ice edge.

Ice Coverage

Ice pressure warning in effect.

3 tenths first-year ice except 7 tenths first-year ice in the
eastern section. Consolidated first-year ice along parts of the
coasts.
Strong ice pressure along parts of the Prince Edward Island coast
developing overnight.

Warnings

Warnings (In effect)

Gale warning in effect

Northumberland Strait - western half

Issued 10:00 AM ADT 16 March 2026

'Gale' force winds of 34 to 47 knots are occurring or expected to occur in this marine area. Watch for updated statements. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio or Weatheradio stations.

Ice pressure warning in effect

Northumberland Strait - western half

Issued 10:00 AM EDT 16 March 2026

Navigators in this marine area should be on the lookout for hazardous ice conditions and take necessary safety precautions. Please refer to the latest ice forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio stations.

Synopsis

Technical Marine Synopsis

Issued 10:00 AM ADT 16 March 2026 Today Tonight and Tuesday At 10:00 a.m. ADT today low 986 mb located near the Great Lakes.
By 3:00 a.m. ADT Tuesday low 976 mb located over southern Quebec.

At 3:30 p.m. ADT Tuesday departing low 962 mb located over Labrador.

At 10:00 a.m. ADT today ridge located over the southeastern Marine
District.
By 8:00 p.m. ADT tonight departing ridge located east of the
Marine District.

Marine Weather Statement

Issued 9:52 AM ADT 16 March 2026 A low pressure system near the Great Lakes will move to lie over
Southern Quebec tonight and into Labrador on Tuesday. Strong to gale
force southeasterlies will develop over western waters today and over
eastern waters tonight. Winds will veer and increase to gale force
southerlies or southwesterlies early Tuesday over most waters.
Late on Tuesday, winds will diminish somewhat to strong to gale force
southwesterlies over western waters.

Marine interests are advised that gale warnings are in effect for all
regions except Chaleur-Miscou - western half.

Marine interests are also advised that a freezing spray warning is in
effect for Anticosti.

St. Lawrence - St. Lawrence River Area

Another Region

Features

New: Colour-coded weather alerts

Learn more about weather alerting in Canada

Date modified: