Hurricane Sam intensifies to Category 4 with 150 mph winds. Will it track close to the US?

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Hurricane Sam stormed westward through the Atlantic Basin on Sunday, a powerful Category 4 storm that forecasters hoped would stay far enough from land to avoid major damage from its 150 mph winds and heavy rains.

AccuWeather forecasters said a due west path through the northern islands of the Caribbean seemed unlikely. A dip in the jet stream would steer Sam away from the United States, AccuWeather meteorologist Bernie Rayno said.

"But if that jet stream dip sets up farther west or meanders westward, then there is room for Sam to get very close to the U.S. next weekend," Rayno said.

That scenario, nine years ago, helped steer Superstorm Sandy west into New Jersey. Sandy was blamed for almost 300 deaths across multiple nations and damage of almost $70 billion.

AccuWeather meteorologists did not forecast a similar outcome to Sandy, but they warned of a range of possibilities for the hurricane's track, including one scenario that could cause Sam to track very close to the U.S.

"Even if Sam remains east of the U.S. late this week through next weekend, seas (could rise) along the Atlantic coast from central Florida to Maine with building surf and increasing rip currents," AccuWeather senior meteorologist Rob Miller said.

'Small but dangerous': Sam strengthens to major hurricane

That could begin as early as midweek along the southern part of the U.S. coast, then expand north into next weekend. A non-tropical storm associated with the jet stream could add to the intensity of the surf along part of the Atlantic coast as well as produce its own zone of rain by late this week, AccuWeather said.

Some fluctuations in intensity are expected during the next day or so before Sam is likely to slowly weaken, the National Weather Service said.

Sam is the 18th named storm of the Atlantic season and the seventh hurricane. Only one other hurricane season – 2020 – on record has had 18 named storms at this point in the season. The remaining names on the list this year are Teresa, Victor and Wanda.

A supplemental list approved by the World Meteorological Organization would replace the Greek alphabet used during last year's record-breaking season. The supplemental list: Adria, Braylen, Caridad, Deshawn, Emery, Foster, Gemma and Heath.

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Track Hurricane Sam's path

This article originally appeared on USA TODAY: Hurricane Sam intensifies to Category 4 status with 150 mph winds

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