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Mesovortices visible in the eye of Hurricane Emilia in 1994. An eyewall mesovortex is a small-scale rotational feature found in an eyewall of an intense tropical cyclone. Eyewall mesovortices are similar, in principle, to small "suction vortices" often observed in multiple-vortex tornadoes. In these vortices, wind speed can be up to 10% higher ...
Concentric eyewalls seen in Typhoon Haima as it travels west across the Pacific Ocean.. In meteorology, eyewall replacement cycles, also called concentric eyewall cycles, naturally occur in intense tropical cyclones with maximum sustained winds greater than 33 m/s (64 kn; 119 km/h; 74 mph), or hurricane-force, and particularly in major hurricanes of Saffir–Simpson category 3 to 5.
Polar lows have been referred to by many other terms, such as polar mesoscale vortex, Arctic hurricane, Arctic low, and cold air depression. Today the term is usually reserved for the more vigorous systems that have near-surface winds of at least 17 m/s (38 mph).
As of Friday afternoon, the U.S. 192 tornado near Deer Park remained the only confirmed twister in Brevard County that was generated by Hurricane Ian.
The Hurricane Hunters of the Air Force Reserve are distinct from those of the Department of Commerce's NOAA Hurricane Hunters, based at Lakeland Linder International Airport, Florida, [4] who use a pair of Lockheed WP-3D Orion and a Gulfstream IV-SP aircraft to also fly weather reconnaissance, data collection and scientific research missions.
The hurricane center uses only the top four or five highest performing models to help make its forecasts. (This story has been updated to add new information.) Gabe Hauari is a national trending ...
The fourteenth tropical storm, record-breaking tenth tropical cyclone, and ninth intense tropical cyclone of the 2018–19 South-West Indian Ocean cyclone season, Kenneth formed from a vortex that the Météo-France office on La Réunion (MFR) first mentioned on 17 April. The MFR monitored the system over the next several days, before ...
Satellite image of an upper tropospheric cyclonic vortex in the western North Pacific. An upper tropospheric cyclonic vortex is a vortex, or a circulation with a definable center, that usually moves slowly from east-northeast to west-southwest and is prevalent across Northern Hemisphere's warm season.