The Weather Network – Hurricane Sam Expected to Intensify Rapidly, Subtropical Storm Teresa Appears – .

The Weather Network – Hurricane Sam Expected to Intensify Rapidly, Subtropical Storm Teresa Appears – .

Friday, September 24, 2021, 9:06 p.m. – Hurricane Sam continues to strengthen rapidly and is expected to reach major hurricane status this weekend, as subtropical storm Teresa makes an appearance.

Atlantic hurricane season is expected to top the list of names for this year, with Hurricane Sam continuing to strengthen in the middle of the ocean, while closer to North America, subtropical storm Teresa s’ is formed on Friday. See below for a summary of the situation with these two storms.


After being named a tropical storm Thursday morning, Sam continued to strengthen over open waters in the Atlantic Ocean, becoming a Category 1 hurricane on Friday morning and staying at that strength late in the day. According to the U.S. National Hurricane Center (NHC), Sam is expected to continue to intensify rapidly, likely to become a major hurricane, Category 3 or greater, by Saturday.

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According to Friday night’s update, the hurricane was about 2,075 km east-southeast of the northern Leeward Islands, with maximum sustained winds of 140 km / h, the NHC said. , adding that there were no coastal warnings in effect yet. Sam is expected to cross the Atlantic and then the northern Caribbean Islands next week.

According to Weather Network meteorologist Dr. Doug Gillham, Hurricane Sam will continue to be a storm to watch in the days and weeks to come.

“The most likely scenario is that Sam bends back and stays at sea and is not a major threat to Canada or the United States (but a threat to Bermuda),” said Gillham. “However, there is still a possibility that Sam will take a more southerly course and pose a threat to the Southeastern United States in about 9 to 12 days, or the storm could veer far enough west to constitute a threat to the Atlantic. Canada in 10-14 days. “

Sam is the seventh hurricane in the 2021 Atlantic season. The hurricane season traditionally runs from June 1 to November 30, with substantial flexibility on either side of this range.


On Friday afternoon, the next storm erupted: Tropical Storm Teresa, forming significantly closer to the North American mainland than Sam, and about 275 km north of Bermuda.

Unlike Sam, Teresa isn’t expected to strengthen much and likely won’t achieve full-blown hurricane strength, although a northbound turn is likely over the next few days.

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Teresa is not long for this world: a developing extratropical system forming off New England is expected to absorb Teresa over the next 36 to 48 hours. Until then, the subtropical storm has a small window to intensify slightly while passing through lukewarm water and encountering moderate vertical shear.

There is a chance that much of the moisture from the storm will feed into this extratropical system, eventually affecting the Maritimes, but the effect will not be extreme.

Be sure to check out the latest updates on the Atlantic hurricane season.


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