Hurricane Sam Forms in the Atlantic, Continues to Intensify

September 24

According to the National Hurricane Center (NHC), tropical storm Sam strengthened into a hurricane today morning, with winds of 75 mph and even higher gusts. Sam is the seventh hurricane of the 2021 Atlantic season, intensifying at least 35 mph in 24 hours. It will become a major hurricane – Category 3 or higher – by Saturday afternoon. 

Sam is currently tracking over 1400 miles east-southeast of the Northern Leeward Islands. It continues to move west with maximum sustained winds of 75mph. 

Despite Sam’s rapid strengthening, it is unclear if it would impact the US mainland. However, it could at least send a threat of high surf and rip currents to the East Coast.

Follow the quick links to assess the impact in EigenPrism: 

• Hurricane-Force (>64 kt) Wind Probabilities – from 2021-09-24 to 2021-09-29  
• Hurricane Sam Forecast Wind Swath – Advisory 07 – as of 2021-09-24

September 23 | Tropical Storm Sam to Become a Major Hurricane by this Weekend

Tropical Storm Sam formed in the eastern Atlantic late Thursday morning – becoming the 18th named storm of 2021 Atlantic hurricane season. The storm is forecasted to become a hurricane by this weekend. However, it’s impact on land remains uncertain.

Earlier known as Tropical Depression Eighteen, Sam is currently tracking 1745 miles east-southeast from the Northern Leeward Islands. It is moving west with maximum sustained winds of 50 mph.

 

Sam will likely become a hurricane by this weekend, east of the Lesser Antilles. Consequently, it may even get stronger by the early next week.

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