Eyewall

We have what we call eyewall replacement cycles, and the thunderstorms build up and then they collapse, and then the wind speeds increase or decrease along with that. ❋ Unknown (2005)

And that eye that you see -- these eyes go through what we call eyewall replacements. ❋ Unknown (2005)

And these bigger, stronger storms will go through these what we call eyewall replacement cycles. ❋ Unknown (2005)

A new eyewall is forming, and WTVJ Channel 6's Roland Steadam is saying it should come ashore by tonight. ❋ Unknown (2004)

And, in addition, there are still many sections of the so-called eyewall that are weak. ❋ Unknown (2007)

We're watching it go through what's called the eyewall replacement cycle. ❋ Unknown (2007)

Obviously we get you back down toward Key West, and that's where the eyewall is making landfall now, maybe not quite into Key West, maybe the landfall, the eyewall is a few miles north of Key West, but folks there don't want to split hairs, because I tell you what, the winds are more than they counted on for sure right now. ❋ Unknown (2005)

In Irene's case, that pattern known as eyewall replacement was interrupted, and the storm didn't gather as much strength as most of the models suggested. ❋ Unknown (2011)

Suddenly, a band of air at a certain radial distance starts rotating more strongly than the others; this becomes the "eyewall" - the region of strongest winds that surrounds the eye in a hurricane. ❋ Unknown (2011)

Melor had a nearly complete inner eyewall, which is surrounded by a nearly complete outer eyewall of moderate rain. ❋ Unknown (2009)

Center landfall with peak winds of 100kts or maybe slightly less looks to be at Grand Isle, at 8am ET - as of 730et the "eyewall" appears to be touching land. ❋ Unknown (2008)

Certain large milestones -- like 100 eyewall penetrations -- earn a special patch. ❋ Gabe Zichermann (2011)

Passage over Luzon Island destroyed Megi's eyewall and inner core region, and the storm compensated by expanding and intensifying the portions of its circulation that were over water. ... ❋ Jason Samenow (2010)

A Terra MODIS infared image of Megi's eye and surrounding eyewall structure of Megi prior to landfall in the Philippines. ❋ Jason Samenow (2010)

The track models are clustered around the idea that Earl's eyewall will indeed recurve out to sea and miss the U.S. coastline, bypassing the eastern tip of the Outer Banks of North Carolina by roughly 100 miles at closest approach just after midnight Friday morning. ❋ Unknown (2010)