Severe storms hammered parts of the tri-state area Monday afternoon into the late evening hours, flooding City subways, prompting dozens of water rescues and triggering a state of emergency in hard-hit parts of New Jersey.

The intense thunderstorm may have looked and sounded like a tornado, but that's not what happened, according to forecasters who examined the damage.

With a hot and juicy atmosphere, torrential downpours and flash flooding are back in play for at least part of New Jersey late Wednesday.

The National Weather Service issued a heat advisory that includes Berks, Bucks, Chester, Delaware, Lehigh and Montgomery counties, as well as Mercer County in New Jersey.

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

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.