Environment
Here’s What the Heat Island Looks Like in East Coast Cities
Maps of urban heat islands show where residents can find pockets of cooler air in Boston, Philadelphia, Richmond, Baltimore, and Washington, D.C.
A dangerous heat wave is sweeping across two-thirds of the U.S. this weekend, bringing some kind of heat watch or excessive heat warning to nearly 200 million people. Temperatures on Friday pushed into the 90s in several cities, from St. Louis and Chicago in the Midwest to Washington, D.C. and New York City along the East Coast.
With stifling humidity, heat index values in many areas soared past 100 degrees Fahrenheit as of 1 p.m. Friday, and several cities are expected to hit record highs, according to the National Weather Service.