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on
November 19, when a special weather statement was issued for all of Atlantic Canada, warning of the potential of long-duration rainfall and high winds. By November 22, rainfall and wind warnings covered much of Atlantic Canada. Rain associated with the system began in northern New Brunswick early
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area, where 102 mm of rain prompted severe flooding. Thirty-three people had to be rescued by boat from a trailer park when it was flooded by 1.5 meters of water. The heavy rain also washed out a culvert on Route 245, resulting in the road being closed for several days. The flooding was exacerbated
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Although rainfall totals in the rest of
Atlantic Canada were not as extreme as those seen in Nova Scotia or Newfoundland, both New Brunswick and Prince Edward Island experienced significant rainfall. Widespread totals of 50-75 mm were recorded across Prince Edward Island, peaking at 99.6 mm in
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on
November 22. The front moved through the rest of New Brunswick and Nova Scotia through the day, before stalling out over Cape Breton Island and western Newfoundland between November 24 and 25. The reason for the system's slow movement can be attributed to an
225:, Environment and Climate Change Canada announced the unveiling of a new impact scale for atmospheric rivers. This scale is expected to roll out in January 2022, and will categorize future atmospheric rivers on a scale from 1 to 5 based on impact, similar to
299:"SPECIAL WEATHER STATEMENT issued for many parts of the Maritimes as a long duration rainfall event is forecast next week. Heavy rain, will be accompanied by strong winds. Power outages/difficult travel are possible. #NSStorm"
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eastwards, winds gusting in excess of 100 km/h prompted a number of power outages. At the peak of the storm, several thousand people were left without power. However, the worst damage occurred in the
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Western
Newfoundland was hit the hardest by the rain. As of the morning of November 22nd, 128 mm of rain had fallen, resulting in the washout of three sections of the
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by the heavy rain coinciding with a spring high tide, making it difficult for the water from the West River, Wrights River and
Brierly Brook to leave Antigonish Harbour.
171:. In addition, Ingonish Beach set an all-time daily rainfall record of 234 mm, nearly double the old rainfall record of 148.3 mm. The extreme rainfall caused parts of the
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In mainland Nova Scotia, damage was mostly localized to the eastern part of the province. From
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457:"'It's pretty shocking,' resident says of return to Antigonish trailer park hit by flooding"
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As a result of the severe damage caused by this atmospheric river, along with the
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435:"Storm washes away areas of Trans-Canada Highway in southwestern Newfoundland"
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to be washed out, with the damage expected to take 'days or weeks' to repair.
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105:. Due to the intensity of the rainfall, a state of emergency was declared in
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393:"Flood fears remain high on the East Coast after 200+ mm of rain recorded"
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117:. Additionally, the intensity of the rainfall resulted in part of the
413:"Could take 'days or weeks' to fix flood-damaged parts of Cape Breton"
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At least $ 7 million in estimated damage from rain storm: N.S. Premier
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347:"Unrelenting deluge floods the East Coast with 100-200 mm of rain"
492:"Canada will introduce a new impact scale for atmospheric rivers"
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477:"Weather Summaries - Environment and Climate Change Canada"
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A number of extreme rainfall totals were recorded across
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The first warning of a possible storm was issued by
99:occurred in the Pacific Northwest a few days prior
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227:the scale currently in use in the United States
538:Natural disasters in Newfoundland and Labrador
79:>$ 7 million CAD (>$ 5.46 million USD)
370:"Incredible rainfall totals in Cape Breton"
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223:one in British Columbia a few days prior
16:November 2021 floods in Northeast Canada
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244:November 2021 Pacific Northwest floods
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135:Environment and Climate Change Canada
89:are a series of floods that affected
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97:. The floods, similar to those that
87:November 2021 Atlantic Canada floods
22:November 2021 Atlantic Canada floods
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30:November 22, 2021–November 23, 2021
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121:being closed just north of
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327:"ECCC Weather Nova Scotia"
305:. ECCC Weather Nova Scotia
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142:over the north Atlantic.
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208:Rest of Atlantic Canada
349:. The Weather Network
163:, 263 millimeters in
191:Mainland Nova Scotia
185:Trans-Canada Highway
119:Trans Canada Highway
101:, were caused by an
497:The Weather Network
398:The Weather Network
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157:Cape Breton Island
151:Cape Breton Island
115:Cape Breton Island
44:Cape Breton Island
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479:. August 6, 2013.
125:in Newfoundland.
103:atmospheric river
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439:. Retrieved
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419:November 24,
417:. Retrieved
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353:November 24,
351:. Retrieved
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309:November 24,
307:. Retrieved
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283:November 24,
281:. Retrieved
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179:Newfoundland
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113:counties in
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52:Newfoundland
46:), southern
42:(especially
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173:Cabot Trail
140:omega block
40:Nova Scotia
512:Categories
437:. CBC News
415:. CBC News
279:. CTV News
250:References
201:Antigonish
129:Background
50:, western
217:Aftermath
107:Inverness
462:CBC News
233:See also
213:Borden.
111:Victoria
48:Labrador
38:eastern
35:Location
374:Twitter
331:Twitter
303:Twitter
197:Halifax
169:Baddeck
146:Impacts
95:Quebec
68:Deaths
58:Cause
443:2021
421:2021
355:2021
311:2021
285:2021
109:and
85:The
71:None
62:Rain
27:Date
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