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From: Don Green

8/29/2023 5:09:50 PM

of 937

Why Hurricane Idalia is different

dg>>> The letter "I" named storm very often always end up being retired
The intrigue: The "I" storm has a curse of sorts. Every storm beginning with I since 2019 has made landfall as a deadly hurricane (Ida, Irma, Ian).

Illustration: Natalie Peeples/Axios

Extreme water temperatures coupled with unique geographic features are pushing forecasters to warn that Hurricane Idalia could turn "catastrophic" — threatening to wipe out coastal communities in Florida.

The storm is expected to strike Florida's Big Bend — where the panhandle meets the peninsula — tomorrow morning as a Category 3 hurricane, Axios extreme weather expert Andrew Freedman writes.The National Hurricane Center is warning of "catastrophic storm surge" in the Big Bend, a uniquely vulnerable region due to the shape of its coast and shallow continental shelf.

"When you try to compare this storm to others, DON'T. No one has seen this," the National Weather Service office in Tallahassee posted.Zoom in: No storm of this magnitude has made a direct hit in the area since reliable records began.

Unusually hot waters in the Gulf of Mexico — largely from climate change and persistent heat domes this summer — have given the storm a chance to intensify rapidly.

Image: National Hurricane Center
Between the lines: A little-known feature beyond the world of storm research is pushing experts to sound increasingly loud alarms.

A combination of fresh and saltwater from the Mississippi River's mouth makes it more likely for the storm to intensify as it nears land.Seawater is more likely to stay hot during a hurricane if there's a layer of freshwater on top, making a storm potentially more dangerous.

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