Northeast U.S. heat wave drives dangerous storms and flash flooding

A heat wave pushing temperatures 10‑15°F above normal has spread across the Northeast and Mid‑Atlantic, with heat indices reaching near 100°F in parts of Virginia, Washington, D.C., New York and New England. The hot, humid air is feeding severe thunderstorm development, prompting the Storm Prediction Center to issue a Level 2 out of 5 severe‑storm risk for more than 50 million people.

Forecasters expect damaging wind gusts, large hail, brief tornadoes and heavy rain that could produce flash flooding, especially along the I‑95 corridor and in major cities such as New York, Philadelphia, Baltimore and Washington. Rainfall rates of 1‑2 inches per hour are possible, and a marginal risk for excessive rainfall has been highlighted. A cold front moving in later tonight should bring cooler temperatures and lower humidity for the weekend.

The situation poses travel disruptions and heightened safety concerns for residents and commuters throughout the affected region.