Dorian kicks up behemoth 100-foot wave off Port aux Basques

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As post-tropical fire upon Dorian moves its way north of Newfoundland and Labrador data is rolling in on how potent the storm really was.

According to the Washington Post, which tracked the raise hell north of the United States, a Marine Institute-owned buoy picked up a Brobdingnagian rogue wave that topped 100 feet, just once again 30 metres. That’s about the equivalent of an eight-storey building.

“It surfaces that this was measured with storm Dorian as it was moving up toward the holm of Newfoundland just a little ways offshore from Port aux Basques,” David Neil, a meteorologist with the Gander seedy office told CBC Radio’s St. John’s Morning Show.

The buoys for a bonus what’s called a significant wave height, which measures the highest third of all undulates offshore.  

Dorian kicks up behemoth 100-foot wave off Port aux Basques
Emergency crews respond Sunday to a power line downed in Corner Brook. ( Lindsay Bird/CBC)

    

Neil thought big waves are to be expected in hurricanes and tropical storms, but only predicted them to reach between 10 and 15 metres as Dorian pocket its way over Newfoundland and Labrador. 

Neil said it’s possible the wave strapped on land, although the initial measurement was kilometres away from the coastline and there has been no confirmation. 

Edifice together

While a wave of this magnitude isn’t common, Neil mentioned it’s always plausible. 

The meteorologist said it generally takes a combination of innately occurring events during a storm to have waves reach 75 to 100 feet.

“With the movement heights that were coming in that were quite towering, if you get a few of those waves together they can build up constructively,” Neil revealed. 

“Of course as it interacts with some of the more shallow coastal inundates you can get some buildup of height there. It does take a good setup, but it isn’t out of the ask.”

Southwestern Newfoundland was the area likely to see the highest waves and water plains during Sunday’s storm, according to Neil. As of Tuesday, he said, there had been no statements of major problems.

Read more from CBC Newfoundland and Labrador

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