Dangerous Heat Wave and Storms Hit U.S.

A dangerous heat wave is gripping much of the United States, with multiple regions under heat advisories and facing an elevated risk of heat-related illnesses. Western New York is experiencing temperatures in the lower 90s with high humidity, along with the threat of heavy rainfall and possible flash flooding on Monday as storms move in. Colorado faces severe thunderstorms through Monday, followed by a sharp rise in temperatures expected to reach the upper 90s and triple digits later in the week. The Northeast, including Boston and the Merrimack Valley, is also under a heat advisory, with heat indices near 100°F, while coastal areas remain cooler. Huntsville, Alabama, is dealing with mid-90s temperatures, high humidity, and increased rain chances later in the week. Additionally, Las Vegas is preparing for extreme heat with highs up to 111°F by midweek and worsening air quality due to California wildfire smoke.