A heat dome occurs when a large area of high pressure in the upper atmosphere acts as a reservoir, trapping heat and humidity ...

Along with the arrival of astronomical summer — which happened at 10:42 p.m. Friday — has come a brutal heat wave, a stretch of extreme weather that means we all should be aware of the potential for ...

More than 150 million Americans are under the highest level extreme heat alerts during a wave of above-average temperatures.

High heat and humidity are in full force across the Pittsburgh area for the first full week of summer.Tuesday will be the third 90-degree day in a row, making it officially a heat wave.Sign up for our ...

Sunday marked the second straight day of extreme heat across the Midwest and East Coast. Heat indexes on Sunday hit 103 F (39 ...

If your power does go out in a situation like this, when heat is putting strain on the grid, restoration times tend to be a lot quicker, because the repairs can be made faster.

An expert has tips on how to stay cool during the extreme heat in Pittsburgh. Heat is the leading weather-related cause of ...

The rare June heat wave broke about 20 records on Sunday and is expected to break more on Monday. According to The Weather ...

Hospitals throughout Western Pennsylvania are seeing a spike in patients with heat-related emergencies, officials said Monday as extreme heat blanketed the region. At UPMC, the largest hospital ...

SHOULD LIMIT THEIR TIME OUTSIDE IN THE HEAT WE’RE ALSO EXPERIENCING RIGHT NOW. IT’S IMPORTANT TO REMEMBER HOW TO STAY SAFE. IF YOU HAVE TO GO OUTSIDE AND WORK. YES, COVERING ALLEGHENY COUNTY IS ...

The extreme heat continues as temperatures push into the low to mid-90s this afternoon, and heat indices will rise to the ...