Pointe-des-Monts to Anticosti - northern half

Forecast

Marine Forecast

Issued 04:20 PM EDT 21 August 2017

Tonight and Tuesday.

Gale warning in effect. Squall watch in effect.

Wind southwest 20 to 30 knots with gusts to 35 near thunderstorms. Wind diminishing to west 10 to 15 late this evening then becoming light Tuesday morning. Wind increasing to east 10 to 20 early Tuesday afternoon and to east 25 to 35 late Tuesday afternoon.

A few showers ending near midnight. Risk of thunderstorms late this afternoon and early this evening. Chance of showers beginning Tuesday evening. Visibility as low as 1 mile in showers.

Waves

Issued 03:00 PM EDT 21 August 2017
Tonight and Tuesday. Seas 1 to 2 metres subsiding to 1 or less late overnight then building to 2 to 3 Tuesday evening.

Extended Forecast

Issued 06:00 PM EDT 21 August 2017
Wednesday Wind southerly 15 to 25 knots.
Thursday Wind westerly 15 to 25 knots.
Friday Wind westerly 15 knots.

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Map of St. Lawrence - St. Lawrence River marine weather areas Mont-Louis - 45138 Lake Nipissing - 45152 North Bay Airport Beauport Deschambault L'Assomption Trois-Rivières Airport Saint-Hubert Airport Baie-Comeau Airport Cap-Rouge Pointe de l'Islet Sept-Îles Airport Cap-d'Espoir Rivière-la-Madeleine Gaspé Airport La Pocatière Mont-Joli Airport New Carlisle Pointe-au-Père Port Menier CFB Bagotville Jonquière Mistook Normandin Roberval Airport Bas Caraquet Bathurst Airport Bouctouche AAFC Charlo Miramichi Fundy Park (Alma) Grand Manan Kouchibouguac Miscou Island Greater Moncton Int'l Airport Point Lepreau Saint John Airport St. Stephen Brier Island Yarmouth Airport North Cape Île d'Orléans Île aux-Grues Lac Saint-Pierre Lac Memphremagog Sainte-Anne-de-Bellevue Saint-Anicet Île Rouge Pointe Claveau Pointe-des-Monts Pointe-Noire Île Bicquette Cap-Chat Montréal-Trudeau Int'l Airport
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land station Land Station
Ice Conditions

Ice Forecasts

Issued 10:00 AM EDT 20 June 2017 Forecasts have ended for the season.
Warnings

Warnings (In effect)

Gale warning in effect

Pointe-des-Monts to Anticosti - northern half

Issued 4:30 PM EDT 21 August 2017

'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.

Watches (In effect)

Squall watch in effect

Pointe-des-Monts to Anticosti - northern half

Issued 4:33 PM EDT 21 August 2017 Conditions are favourable for the development of squalls with wind gusts up to 35 knots.



Mariners are advised to prepare for potential squalls. Vulnerable vessels are most at risk and should seek safe harbour if underway. Consider delaying or postponing travel in areas under the Squall Watch.

Please continue to monitor alerts and forecasts issued by Environment Canada. For more information monitor Canadian Coast Guard radio or Weatheradio stations.

Synopsis

Technical Marine Synopsis

Issued 3:00 PM EDT 21 August 2017 Tonight and Tuesday At 3:00 p.m. EDT today ridge located on a line north-south over
Cornwall.
By 8:00 a.m. EDT Tuesday departing ridge located on a line
north-south over Newfoundland.

At 5:00 a.m. EDT Tuesday intensifying low 1003 mb located north
of Lake Huron.
By 8:00 p.m. EDT Tuesday low 986 mb located over northern Quebec.

At 9:00 a.m. EDT Tuesday trough from low located on a line
northeast-southwest over Lake Michigan.
By 8:00 p.m. EDT Tuesday trough from low located on a line
north-south over Matane.

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