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Fair, calm weekend for the East Coast, ahead of soaking rains next week

Friday, November 19th 2021, 7:00 pm - Forecasters are watching a series of systems and excessive rainfall totals for next week.

After a wet and windy end to the week for some areas of the East Coast, fair and colder conditions will dominate for much of the weekend. People in the Maritimes would be advised to use the lull to do any outdoor maintenance they can to prepare for a widespread multi-day heavy rain event setting up for the first half of next week. Rain totals may surpass 100 mm in some places, heightening the flood threat where the heaviest rain falls. More on what we know so far, below.


The weekend looks fair, though somewhat chilly, and forecasters are eyeing the next widespread heavy rain event for the Maritimes next week, with the potential for some excessive rainfall totals.

A series of low pressure systems will develop off the U.S. East Coast next week and track towards the Maritimes along the boundary between rather chilly air to the west and subtropical air to the east. A strong blocking pattern over the Atlantic will prevent that setup from moving out to sea, directing it instead over the Atlantic provinces in an atmospheric river of tropical moisture.

East AR

"This will result in several days of windy and mild weather with several rounds of rain, which will be heavy at times," Weather Network meteorologist Dr. Doug Gillham says.

The heaviest rain looks to fall Monday night and Tuesday, with widespread rain totals of 75-125 mm expected, especially for the central and eastern Maritimes and eastern Quebec. Wind gusts of 60-100 km/h are forecast as well.


Environment and Climate Change Canada has issued a special weather statement for all three Maritime provinces, warning the atmospheric river's effects could endure into Wednesday, and possibly beyond.

"It is too early to say what the largest rainfall amounts will be and where they will occur. Pounding surf and higher than normal water levels are possible Tuesday and Wednesday," the agency says.

Be sure to check back for the latest updates on the unsettled pattern shaping up for Atlantic Canada.

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