“Tropical cyclone” is a generic term for warm-core low pressure systems with a defined surface wind circulation, born over tropical, or sometimes subtropical, waters, accompanied by persistent ...

Winds around low pressure systems (like hurricanes) try to blow inward but are deflected by Coriolis to the right, resulting in a counterclockwise circulation.

Hurricanes are low pressure systems. When viewed from above, the wind circulation around such systems (in the Northern Hemisphere) is always in a counterclockwise sense.

A storm is classified as a tropical depression when a low-pressure system develops over warm ocean waters, its wind circulation becomes organized and it has wind speeds of up to 38 mph.

Vertical wind shear can keep tropical storms in check, particularly during El Niño years. When El Niño is gone, it’s a different story.

Today, a paper published in Science documents for the first time the global wind circulation patterns in the upper atmosphere of a planet, 120 to 300 kilometers above the surface. The findings are ...

The NHC is tracking two tropical waves across the Atlantic, each with the potential to develop into tropical cyclones in the ...

Under high-emission scenarios, the Atlantic meridional overturning circulation (AMOC), a key system of ocean currents that ...

The Live 5 First Alert Weather team is watching a tropical wave that could produce the next tropical depression within days.