This first round of smoke was bad enough. But another one is on the way this weekend, and a third may follow after that in the Midwest and East.

Power outages, downed trees and flooding were holiday headaches in New York, Washington and Chicago. But strong thunderstorms are typical this time of year.

Low pressure is forming in the eastern Gulf. Locally heavy rain is possible, whether or not it gets a name from the National Hurricane Center.

This dangerous heat wave could send temperatures into the 90s and triple digits. New York, Philadelphia and Washington could see records fall.

You may not know about sneaker waves, but they're one of the deadliest threats on many beaches. Here's how to stay safe.