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Pointe-des-Monts to Anticosti - southern half

Warnings

Forecast

Marine Forecast

Issued 03:00 AM EDT 19 April 2026

Today Tonight and Monday.

Gale warning in effect.

Wind south 15 to 25 knots becoming south 15 this morning then increasing to west 25 to 35 this afternoon. Wind diminishing to west 15 to 25 Monday evening.

Rain beginning this morning becoming snow or periods of rain this evening and ending Monday morning. Visibility 1 mile or less in precipitation.

Temperatures plus 4 falling to minus 2 Monday evening.

Waves

Issued 03:00 AM EDT 19 April 2026
Today Tonight and Monday. Seas 1 metre building to 2 to 3 early this evening then subsiding to 1 to 2 Monday evening.

Extended Forecast

Issued 06:00 AM EDT 19 April 2026
Tuesday Wind westerly 15 knots diminishing to light in the morning.
Wednesday Wind northeast 10 to 15 knots becoming light.
Thursday Wind northwest 15 to 25 knots.

Ice Forecast

Issued 10:00 AM EDT 18 April 2026 Today Tonight and Sunday Open water. 

[ Canadian Ice Service ]

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Weather Conditions

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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
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land station Land Station
Ice Conditions

Ice Forecasts

Issued 10:00 AM EDT 18 April 2026 Today Tonight and Sunday

Ice Edge

First ice edge estimated from Cape Breton Island near 4702N 6025W to
4745N 6115W to Gaspe Peninsula near 4846N 6410W. Sea ice southwest
of the ice edge.

Second ice edge estimated from Quebec near 4838N 6811W to 5005N
6600W to 4945N 6015W to Newfoundland near 4806N 5905W. Sea ice north
of the ice edge.

Ice Coverage

Open water.

Warnings

Warnings (In effect)

Gale warning in effect

Pointe-des-Monts to Anticosti - southern half

Issued 03:00 AM EDT 19 April 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.

Synopsis

Technical Marine Synopsis

Issued 3:00 AM EDT 19 April 2026 Today Tonight and Monday At 3:00 a.m. EDT today departing high 1030 mb located off
Newfoundland.

At 3:00 a.m. EDT today trough located on a line north-south over
Montréal.
By 6:00 a.m. EDT Monday departing trough located on a line
north-south over the Gulf of St. Lawrence.

At 3:00 a.m. EDT today high 1028 mb located over Manitoba.
By 8:00 p.m. EDT Monday high 1030 mb located over southern Ontario.

St. Lawrence - St. Lawrence River Area

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Marine Weather for Canada

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