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A zonally elongated axis of surface wind confluence of northeasterly and southeasterly trade winds in the tropics. Invest: A weather system for which a tropical cyclone forecast center (NHC, CPHC, or JTWC) is interested in collecting specialized data sets (e.g., microwave imagery) and/or running model guidance.
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The term typhoon is used for Pacific tropical cyclones north...
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Mar 30, 2020 · A hurricane is a tropical cyclone in the Atlantic basin with maximum sustained winds of at least 74 miles per hour (119 kmh). Tropical cyclone formation occurs for a variety of reasons under a variety of conditions. Warm ocean water is critical to formation as it creates an unstable environment that allows moist air to rise.
Glossary of NHC Terms. Advisory: Official information issued by tropical cyclone warning centers describing all tropical cyclone watches and warnings in effect along with details concerning tropical cyclone locations, intensity and movement, and precautions that should be taken. Advisories are also issued to describe: (a) tropical cyclones ...
- Types of Storms
- Watches and Warnings
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Tropical cyclone - The catch-all name for any tropical depression, storm, hurricane, typhoon (what hurricanes are called in the Northwest Pacific basin) or cyclone (what hurricanes are called in the South Pacific and Indian Ocean basins). These systems with well-organized thunderstorms around a closed low-level center derive their energy from warm ...
Hurricane or tropical storm watch- This means hurricane (sustained winds of 74 mph or higher) or tropical storm (39 to 73 mph sustained winds) conditions are possible within the watch area, generally within 48 hours. Hurricane watches are typically issued by the NHC 48 hours in advance of the onset of tropical storm-force winds, which can make fina...
Center - This is as it sounds, the center of the storm's circulation with the lowest pressure and lowest wind. In some weaker tropical storms or depressions, this can be challenging to locate in satellite imagery. In these cases, Hurricane Hunter reconnaissance aircraft can help locate the center, which they call a center fix or vortex fix. In stro...
Sep 5, 2024 · Tropical depression - This tropical cyclone has maximum sustained winds of 38 mph or less. Tropical storm - When maximum sustained winds reach 39 mph, the system is called a tropical storm, and ...
May 31, 2016 · A typical cyclone in winter over the United States is an extratropical cyclone. Tropical cyclones often become extratropical, undergoing “extratropical transition,” as they move out of the ...
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Cyclones: western South Pacific and Indian oceans. Typhoons: western North Pacific (around the Philippines, Japan, and China) Hurricanes. The term "hurricane" finds its roots in the Caribbean, where the indigenous Taíno people of the Greater Antilles worshiped a storm deity named Juracán. This god’s name may also have come from the Mayan ...
