All Weather News

Irma Becomes a Non-Tropical Low

12 Sep 2017, 9:49 am

Former Hurricane Irma has continued to weaken as it moves northwestward through the southeast, and earlier this morning the storm lost most of its tropical characteristics. The low is now classified as extra-tropical or post-tropical cyclone. The broad center of circulation is located between Birmingham and Atlanta. The once powerful hurricane with 185 mph winds have now decreased down to only 15 mph.

As Irma moves farther inland near the Georgia-Alabama border, it continues to produce a large rain shield spread across much of the southeastern United States. There have been no reports of sustained tropical-storm-force winds for several hours. Winds should continue to decrease over the next day or so while Irma remains over land and is hammered by strong upper-level winds. These conditions should also cause any remaining strong thunderstorms to diminish. The models are in agreement that the extra-tropical low will dissipate within 48 hours.

Remnant bands from Irma are expected to produce additional rain accumulations of 1″ to 2″, with localized higher amounts through Tuesday across portions of North Carolina.  Isolated intense rainfall rates could lead to localized flash flooding and rapid rises of rivers, streams, and creeks. Closer to Irma’s remnant circulation, an additional 1″ to 2″ of rain is expected for Northern Mississippi, Eastern Arkansas, and Western Tennessee and Kentucky. River flooding will persist over much of Florida, Georgia, and Eastern Alabama.

For WeatherNation: Meteorologist Mace Michaels

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