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The Peak of Hurricane Season
The Atlantic Basin typically reaches its peak in tropical activity during the first few weeks of September, specifically around Sept. 10. The first half of September is climatologically when the temperature of ocean water in the Atlantic is at its peak; therefore, the most basic requirement for tropical development is met.
The Atlantic Ocean experiences its peak water temperatures about one to two months after many land-based observation stations across North America experience their climatological peak temperatures for the year, and about two and a half months after the summer solstice (the longest day of the year across the Northern Hemisphere). As a result, the frequency of named storms is most often the greatest during the first few weeks of the first month of meteorological fall. In an average year, September will feature approximately four named storms in which about two strengthen into hurricanes. The most active September on record across the Atlantic Basin occurred in 2002 and 2010 with eight named storms.
The number of named storms will usually start to drop off by the end of September, and especially into October, as ocean temperatures cool and wind shear from the mid-latitudes increase and push southward into the tropics.
More Weather Glossary
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How can weather help or hurt seasonal allergy sufferers?
Weather plays a bigger role than you may think when it comes to seasonal outdoor allergies.
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The Difference Between Freezing Rain, Sleet and Snow
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VIDEO: Nevada Arroyo Fills Suddenly With Swift Floodwaters
Dangerous flash flooding is captured as an arroyo becomes filled with water in Carson Valley, Nevada.
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What is the AccuWeather RealFeel Temperature?
The RealFeel Temperature uses an equation to determine how it actually feels outside.
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An Explanation of Winter Weather Advisories, Winter Storm Watches, and Winter Storm Warnings
Knowing what the different advisories, watches, and warnings mean will lead to more informed decision making when a winter storm threatens a particular area.
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Ice Safety - When to Go Out on a Lake?
How can you determine if and when the ice is thick enough for safely going out on?
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Is There a Safe Place to Hide From a Tornado?
Seeking shelter in the event of a tornado could save your life, but is there really any safe place to hide?
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Tornado Safety if Caught in a Car
Driving on a 90-degree angle away from the tornado is a good strategy to follow in order to distance yourself from the tornado.
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How Supercell Storms Produce Devastating Tornadoes
Supercell thunderstorms have been responsible for major tornadoes that have demolished parts of the U.S.
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Hoar Frost
After a cold, clear winter night without much wind, the ground and nearby tree branches may be covered by tiny, white ice crystals.
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