Quebec regional marine guide

The St. Lawrence could be called “the Beethoven of rivers”- not for any reason pertaining to music, but because of its wild temperament. Anything but long and lazy, the stretch of the river bordering Quebec is known for its strong tidal currents, high cliffs, and mountain-lined shores, making it an ideal starting point for transatlantic races.

This chapter of the guide examines local marine weather effects on the St. Lawrence under five main sections: from Québec (Quebec City) to Pointe-des-Monts; from Pointe-des-Monts to Cap Whittle; from Cap Whittle to Blanc-Sablon; Gaspésie and Baie des Chaleurs (the Gaspé Peninsula and the Bay of Chaleur); and Îles de la Madeleine (the Magdalen Islands). Within each section, numbered references are made to conditions in specific areas on corresponding maps.

Example of one of the local effects maps in the publication.

Map of the shoreline conditions from Portneuf to Rivère-Ouelle. From Portneuf to Quebec there are winds opposing the current. From Saint-Jean to Saint-Joachim there is funnelling, crossing seas and fog. Along the western shore of the Chênal du Sud, from just south of Petit rivière Saint-François to Saint-Irénée there are gusty winds, katabatic winds, choppy seas, wind opposing the current, crossing seas and, in the Rivière du Gouffre, gap winds. On the eastern shore, From Saint-Jean-Port-Joli to Rivière-Ouelle there are choppy seas and crossing seas.

This guide will provide mariners with practical information and advice on safe navigation on the wide range of weather conditions they may encounter while traveling in Canadian waters. It is recommended that you download and read the MET 101 portion of the National Marine Weather Guide first in order to better understand the meteorological concepts, local weather, wind, sea state, and ice conditions described in the Quebec Regional Marine Guide.

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