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Hurricane Irene was a large and destructive tropical cyclone which affected much of the Caribbean and East Coast of the United States during late August 2011. The ninth named storm, first hurricane, and first major hurricane of the 2011 Atlantic hurricane season, Irene originated from a well-defined Atlantic tropical wave that began showing signs of organization east of the Lesser Antilles.
Bill sustained deep convection and well-established upper-level outflow; [11] it was upgraded to Category 2 status shortly before undergoing an eyewall replacement cycle. [12] Early August 18, the storm had established a very symmetric and well-organized appearance on satellite imagery, and a large, pronounced eye.
Based on satellite imagery, the Dvorak technique is the primary technique used to estimate globally the tropical cyclone intensity. [19]The Potential Intensity (PI) of tropical cyclones can be computed from observed data, primarily derived from vertical profiles of temperature, humidity and sea surface temperatures (SSTs).
The season's first tropical cyclone, Tropical Depression One, developed on May 28, [4] while the final storm, Hurricane Ida, dissipated on November 10. [5] The most intense hurricane, Bill , was a powerful Cape Verde-type hurricane that affected areas from the Leeward Islands to Newfoundland . [ 6 ]
The change was implemented given that named systems had formed in the Atlantic Ocean prior to the start of the season in each of the preceding six cycles. [4] Prior to the start of the season, NOAA deployed five modified hurricane -class saildrones at key locations around the basin, and in September, one of the vessels was in position to obtain ...
A potential tropical cyclone off the coast of the Carolinas served as the most immediate threat to U.S. residents, with the storm about 125 miles east, southeast of Charleston, South Carolina as ...
A historic “bomb cyclone” has caused multiple deaths and mass power outages after slamming into Seattle, Washington, as it charts a destructive path through California and Oregon.
Tropical Storm Helene formed Tuesday and is expected to make landfall as a hurricane Thursday, according to the National Hurricane Center.