The strongest Hurricanes of the season so far, Hurricane Teddy is rifling through Bermuda as we speak, delivering pumping surf across the Caribbean and could be the gold standard for the US east coast.
Teddy and Hurricane Laura have been the two strongest hurricanes so far, reaching category 4. But Teddy is easily the one that is producing the most surf.
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In its initial westward trajectory across the Atlantic, it has already generated a long-period east swell for the East Coast, but then it is due to get sucked into a NE airstream running along the coast, and expand into a much broader extra-tropical system with longer fetches than a normal hurricane. This is what will produce that second, longer-lasting pulse of northerly swell due to reach the Caribbean around the middle of the week.
Teddy's currently around 150 miles southeast of Bermuda and is moving at about 10 mph in a northerly direction. At the moment the maximum sustained winds are around 100 mph and remaining steady. The system is expected to continue moving towards the north for about the next 24 hours, passing to the east of Bermuda then continuing on towards Nova Scotia.
The hurricane itself will gradually weaken, but this will be offset by the system expanding in size and becoming a very large extra-tropical storm just southeast of Nova Scotia, as it becomes entrained into a strong north-easterly flow along the eastern seaboard of North America. It is expected to make landfall on Wednesday and then continue northwards over Newfoundland and out into northern North Atlantic towards the end of the week.
Teddy has already produced some easterly swell over the last day or so and will continue to generate pulses of northeast and north swell, with some good surf already starting to arrive down the east coast of North America and beyond.
Nova Scotia itself will get a short blast of gigantic surf with wave heights briefly exceeding 20 feet late Tuesday and early Wednesday, accompanied by strong winds from a northerly quarter.
Further south along the U.S. East Coast, a long-period easterly swell is expected to arrive later today Monday, initially accompanied by strong northeast winds; but conditions clean up later Tuesday and into Wednesday – depending on your exact location – with the possibility of some excellent surf over six feet.
There will also be a longer-lasting pulse of north swell much further south. At north-facing exposures in the Caribbean such as in Puerto Rico and the Dominican Republic, for example, the swell arrives late Tuesday and continues through Wednesday and Thursday, before decreasing on Friday. Wave heights could reach ten feet at exposed reefs, with light variable winds, particularly in the mornings.