Since Tuesday night, this cluster of thunderstorms never had more than a 10% chance of developing. It was dealing with some ...

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

Vertical wind shear is present nearly everywhere on Earth, since winds typically move faster at higher altitudes than at the surface. It can be stronger or weaker than normal, and that’s ...

For a tropical system to become powerful, wind shear needs to be weak or non-existent, as the stronger winds aloft will blow the upper-level circulation away from the low-level center of the storm.

Basically, wind shear in relation to tropical systems is the difference between the wind speed and direction at the surface compared to that of the upper levels of the atmosphere. For example if ...

Above is an example of unfavorable wind shear, where strong upper-level winds rip apart a storm. 3. D ry air intrusions can disrupt a hurricane's core.

Why This Year’s Tornado Season Has Been So Brutal Wind shear and atmospheric instability have combined to create a brutal tornado season this year ...

Several factors may play a role in making this hurricane season more active than usual: warmer-than-average ocean temperatures, weak wind shear, high West African Monsoon activity, and a neutral ...

Ophelia was a post-tropical cyclone over Virginia late Saturday Eastern time, according to the National Hurricane Center. The post-tropical cyclone had sustained wind speeds of 35 miles per hour ...