NASA sees Hurricane Helene decoupled by wind shear
https://phys.org/news/2018-09-nasa-hurricane-helene-decoupled.html
In general, wind shear is a measure of how the speed and direction of winds change with altitude. Wind shear can tear a tropical cyclone apart or weaken it.
NASA's Infrared View of Helene
NASA sees Hurricane Helene decoupled by wind shear
Sep 13, 2018, 6:24pm UTC
https://phys.org/news/2018-09-nasa-hurricane-helene-decoupled.html
> In general, wind shear is a measure of how the speed and direction of winds change with altitude. Wind shear can tear a tropical cyclone apart or weaken it.
> NASA's Infrared View of Helene