A heat dome happens when hot air is trapped over an area due to a persistent high pressure system, William Gallus, a ...

We have been tracking another round of isolated storms this evening. Some of these have brought heavy rain to some areas ...

The blast of heat prompted advisories across much of Massachusetts, Rhode Island, Connecticut, and in Southern New Hampshire ...

The National Weather Service has sent out millions of extreme heat warnings, heat watches and heat advisory alerts this week, ...

Summer heat just got turned up a notch − and trapped under a lid. About 100 million people will see 100-degree days the rest ...

Almost 85 million Americans from South Dakota to Texas and North Carolina to Florida are already under extreme heat warnings, ...

High humidity and low overnight temperatures will put tens of millions of people under heat alerts over the course of the ...

The National Weather Service already has issued extreme heat warnings, watches and advisories across a swath of the Midwest ...

The NWS has issued a bulletin warning that 100-degree temperatures will likely hit residents in the middle of the US today.

Another heat dome is moving over Illinois this week as temperatures near the triple digits. Here's what that means and when ...

A heat dome dries out the ground and air above it, which deters thunderstorms, but means drought can begin or worsen. A heat ...