Flood watches have been issued in NJ with high heat along with the humidity expected to rise. See timing, heat index values, rain forecast and more.

The National Weather Service has issued flash flood watches for parts of 17 New Jersey counties on Monday to start a stormy week.

The region was hit with heavy rain Monday evening, resulting in flash floods that not only impacted roads and air travel, but also the transit system.

Parts of New York City and Northern New Jersey were inundated on Monday night as widespread thunderstorms moved through.

Rainfall rates of 1 to 2 inches per hour could trigger localized flash flooding in parts of New Jersey on Monday.

A powerful round of thunderstorms is expected to hit New Jersey and eastern Pennsylvania beginning Monday afternoon, July 14, with the National Weather Service warning of flash flooding, possible power outages,