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Government of Canada / Gouvernement du Canada

Pointe-des-Monts to Anticosti - northern half

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 19 March 2026

Today Tonight and Friday.

Wind light increasing to east 10 to 15 knots early this morning and to southeasterly 15 to 25 late this morning. Wind becoming westerly 20 to 30 Friday morning then diminishing to westerly 15 Friday evening.

Flurries tonight and Friday. Visibility 1 mile or less in flurries.

Freezing spray warning in effect.

Freezing spray beginning near noon and ending near noon Friday.

Temperatures minus 11 rising to minus 2 Friday afternoon.

Waves

Issued 03:00 AM EDT 19 March 2026
Today Tonight and Friday. Over open water seas 1 metre or less building to 1 to 2 near noon then subsiding to 1 or less Friday evening.

Extended Forecast

Issued 06:00 AM EDT 19 March 2026
Saturday Wind northerly 15 to 20 knots diminishing to light in the afternoon.
Sunday Wind easterly 15 knots.
Monday Wind east 15 knots diminishing to light late in the day.

Ice Forecast

Issued 10:00 AM EDT 18 March 2026 Today Tonight and Thursday 2 tenths new ice including a trace of first-year ice except 9 tenths new ice including a trace of old ice along parts of the coast. Consolidated first-year ice along parts of the coast. 

[ Canadian Ice Service ]

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Map of St. Lawrence - St. Lawrence River marine weather areas
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Ice Conditions

Ice Forecasts

Issued 10:00 AM EDT 18 March 2026 Today Tonight and Thursday

Ice Edge

Ice edge estimated from Nova Scotia near 4437N 6325W to 4419N 6258W
to 4549N 5848W to Newfoundland near 4740N 5814W. Sea ice north of
the ice edge.

Ice Coverage

2 tenths new ice including a trace of first-year ice except 9 tenths
new ice including a trace of old ice along parts of the coast.
Consolidated first-year ice along parts of the coast.

Warnings

No watches or warnings in effect.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EDT 19 March 2026 Today Tonight and Friday At 3:00 a.m. EDT today ridge located on a line northwest-southeast
over Anticosti Island.
By 8:00 p.m. EDT tonight departing ridge located on a line
northwest-southeast over the Strait of Belle Isle.

At 3:00 a.m. EDT today trough located from James Bay to Lake
Superior.
By 8:00 p.m. EDT Friday trough located from Labrador to Sept-Îles.

At 8:00 p.m. EDT tonight low 1005 mb located over Manitoba.
By 8:00 p.m. EDT Friday low 1006 mb located south of Quebec.

St. Lawrence - St. Lawrence River Area

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