Some areas could feel like 115 degrees. Around 170 million Americans from Nebraska to the Northeast are experiencing dangerously warm temperatures due to an ongoing heat wave. A life-threatening heat ...

A "heat dome," similar to a heat wave, is a high-pressure system trapping hot air and causing prolonged high temperatures. Heat domes differ from heat waves in their duration and the stagnant nature ...

A heat dome is building over the western U.S., and temperatures are expected to reach up to 119 degrees in some areas. The extreme heat is expected to worsen wildfire conditions in California, Arizona ...