BUFFALO, N.Y. – Extreme heat warnings are in effect Wednesday through Friday across New York, and health officials are not mincing words, saying the heat could be deadly for some. Areas like the Capital Region will see the heat index hit 110 degrees.

New York State Department of Health Commissioner Dr. James McDonald says to keep yourself cool and hydrated. He says if you don’t have access to air conditioning, it’s even more important that you keep drinking fluids and don’t wait to drink until you’re thirsty.

There are signs to watch for in the event that something is wrong.

There’s heat exhaustion, which McDonald says is more common. This can happen in 10 to 30 minutes. Heat stroke is the extreme.

Heat rash is one of the first signs. Muscle cramps, light-headedness or nausea can also occur.

“When you start seeing signs that your body is speaking to you, you need to listen,” McDonald said. “If you find yourself sweating profusely, feeling lightheaded, get into an air-conditioned space, and you should have fluid with you at all times when you’re outside.”

Extreme heat warnings go into effect today and remain through Friday. Health officials are not mincing their words, warning this weather could be deadly. The heat index will hit 110 for some of us today. Please be careful and check on your neighbors. pic.twitter.com/JnEW00NVUJ

— Breanna Fuss (@BreannaFuss) July 1, 2026

An emergency is when someone cannot take care of themselves, or they start acting differently. McDonald adds that the elderly don’t feel thirsty like they used to, so check on your neighbors. And don’t leave pets or kids in a hot car.

The DOH has a website that gives you information about cooling centers in your neighborhood.

Health officials are also sharing tips about pool safety. They say drowning happens quickly and quietly, and it is not as dramatic as it is in the movies. There should always be a designated person to watch kids as well; don’t assume someone is.

If you’re out on the water, life vests are highly recommended. Don’t dive into the water if you don’t know the depth.