NATIONAL NEWS

Hurricane Lee expected to rapidly intensify as it approaches the Caribbean

Sep 7, 2023, 11:04 AM | Updated: 11:05 am

Lee rapidly intensified into a strong tropical storm September 6 as it tracks over record-warm ocea...

Lee rapidly intensified into a strong tropical storm September 6 as it tracks over record-warm ocean waters and an environment favorable for strengthening, which will fuel the storm to near Category-5 strength as it approaches the eastern Caribbean. Mandatory Credit: CNN Weather

(CNN) — Hurricane Lee is expected to rapidly intensify in the warm waters of the Atlantic Ocean on Thursday and will likely become a major storm by early Friday, according to the National Hurricane Center.

The Category 1 storm, packing maximum sustained winds of 80 mph as of early Thursday, could reach near Category 5-strength as it approaches the eastern Caribbean.

Lee is located about 965 miles east of the northern Leeward Islands, the hurricane center said in its 5 a.m. Thursday update.

The storm will likely reach its peak intensity this weekend and is still expected to be a dangerous hurricane over the southwestern Atlantic early next week.

There is increasing confidence that the center of Lee will pass to the north of the northern Leeward Islands, the Virgin Islands and Puerto Rico this weekend and into early next week. There is a potential for tropical storm conditions to occur on some of these islands over the weekend.

Swells generated by Lee are expected to reach portions of the Lesser Antilles on Friday, and the British and US Virgin Islands, Puerto Rico, Hispaniola, the Bahamas, and Bermuda this weekend. These swells are likely to cause life-threatening surf and rip current conditions.

It’s too soon to know whether this system will directly impact the US mainland, but even if the hurricane stays off the coast, dangerous surf and rip currents could threaten the Eastern Seaboard.

The storm had rapidly strengthened on Wednesday: Its sustained winds strengthened by 35 mph in the 24 hours after it formed as a tropical depression Tuesday morning. Lee is expected to reach Category 3 strength by Friday morning and potentially Category 4 strength by Friday evening.

Even more rapid intensification – defined as an increase in wind speeds of at least 35 mph in 24 hours or less – is expected in the coming days. The forecast track takes the hurricane across some of the warmest waters in the Atlantic Ocean and through relatively calm upper-level winds, which will allow Lee to explode in strength.

“All the ingredients are in place for the storm to really intensify,” Jason Dunion, director of NOAA’s Hurricane Field Program, told CNN.

The waters in the Atlantic are not quite as warm as the steamy conditions in the Gulf of Mexico, which gave rise to Hurricane Idalia last week. However, sea-surface temperatures across the portion of the Atlantic Ocean that Lee is set to track through are still a staggering 2 degrees Celsius (3.6 degrees Fahrenheit) above normal after rising to “far above record levels” this summer, according to David Zierden, Florida’s state climatologist.

“To get to Category 4 or 5 intensity the environment has to be nearly perfect, which it looks like is the forecast for Lee,” Zierden told CNN.

Lee’s maximum forecast intensity of 150 mph is equivalent to the strongest storm in the Atlantic basin this season – Hurricane Franklin. – and stronger than any storm so far in the eastern Pacific. If Lee tops 150 mph, it will be the most powerful hurricane to roam either basin this year.

That forecast is also just 7 mph shy of Category 5.

“This storm definitely has the potential to be a Category 5,” Dunion said, adding that nothing in Lee’s forecast path is expected to hinder the storm’s development leading up to the weekend.

The last Category 5 hurricane to roam the Atlantic basin was 2022’s Hurricane Ian. Before that, 2019’s Dorian and Lorenzo were the most recent hurricanes to achieve the feat. Only 39 Category 5 hurricanes have occurred since 1924, according to data from NOAA.

Any shifts along Lee’s track as it nears the Leeward Islands would increase the threat of more direct impacts like heavy rainfall and strong winds. Anyone in the eastern Caribbean – including the Leeward Islands, Puerto Rico and Hispaniola – as well as the Bahamas will need to keep a close eye on the forecast headed into the weekend.

Lee is ramping up in intensity as the peak of the Atlantic hurricane season approaches. Sunday, September 10, is the climatological peak of Atlantic hurricane season, when the basin is at its busiest on average. A flurry of tropical activity surrounding this date is not out of the ordinary, but it can turn hazardous fast.

The 2023 Atlantic season has already been busy: It is tracking above average for a number of different metrics including number of named storms, number of hurricanes and number of major hurricanes, according to Philip Klotzbach, a research scientist at Colorado State University.


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Hurricane Lee expected to rapidly intensify as it approaches the Caribbean