(CNN) — Three people have been recovered from a helicopter that crashed in the Hudson River and taken to the hospital, according to authorities on the scene. Authorities were told a person is still ...

How far in advance can you know if a tornado is likely to be large and powerful? The vast majority of violent tornadoes form from supercells, thunderstorms with a deep rotating updraft, called a ...

HENNESSEY, OKLAHOMA - MAY 07: A view of mesocyclone and green glow from very large hail as a tornadic high precipitation supercell arrives in Hennessey, Oklahoma, United States on May 07, 2024.

The vast majority of violent tornadoes form from supercells, thunderstorms with a deep rotating updraft, called a “mesocyclone.” Vertical wind shear can enable the midlevels of the storm to ...

"What makes a supercell unique from all other thunderstorm types is that it contains a deep and persistent rotating updraft called a mesocyclone. If the environment is favorable, supercell ...

"What makes a supercell unique from all other thunderstorm types is that it contains a deep and persistent rotating updraft called a mesocyclone. If the environment is favorable, supercell ...

The vast majority of violent tornadoes form from supercells, thunderstorms with a deep rotating updraft, called a “mesocyclone.” Vertical wind shear can enable the midlevels of the storm to rotate, ...