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Storm track of Hurricane Bill (2009), showing a classic recurvature off the American coast in 2009 When a tropical cyclone crosses the subtropical ridge axis, normally through a break in the high-pressure area caused by a system traversing the Westerlies, its general track around the high-pressure area is deflected significantly by winds moving ...
Depth of 26 °C isotherm on October 1, 2006. There are six main requirements for tropical cyclogenesis: sufficiently warm sea surface temperatures, atmospheric instability, high humidity in the lower to middle levels of the troposphere, enough Coriolis force to sustain a low-pressure center, a preexisting low-level focus or disturbance, and low vertical wind shear. [3]
An off-season Atlantic hurricane is a tropical or subtropical cyclone that existed in the Atlantic basin outside of the official Atlantic hurricane season. The National Oceanic and Atmospheric Administration currently defines the season as occurring between June 1 and November 30 each calendar year, which is when 97% of all Atlantic tropical ...
The strongest hurricane to reach land was the Labor Day Hurricane of 1935 (892 hPa). [12] The deadliest hurricane was the Great Hurricane of 1780 (22,000 fatalities). [54] The deadliest hurricane to make landfall on the continental United States was the Galveston Hurricane in 1900, which may have killed up to 12,000 people. [55]
Surface-level sea temperatures have to be at least 80 degrees for a hurricane to form, Anderson said. The ocean waters along the West Coast are typically a chilly 50 to 65 degrees.
Hurricane Helene rainfall could aid in Illinois drought Albano said that the rain stemming from Helene is much needed in Illinois, as much of the state is in the middle of a dry spell that has ...
October 1949 Texas hurricane — Extratropical remnants of the Category 2 hurricane traversed the state. [3] The National Weather Service lists it as the second recorded center of a tropical storm to cross through Wisconsin. [5] 1960 Texas tropical storm — Peak rainfall of 2.83 in (72 mm) at the Eau Pleine Reservoir. [11]
Category 4 hurricane (major): 130-156 mphCatastrophic damage will occur: Well-built framed homes can sustain severe damage with loss of most of the roof structure and/or some exterior walls. Most ...