One of the hardest hit areas is Hackensack, where Hudson Street has turned into a river.
Here's a look at the scene in Hackensack:
And here's what it was like in Central Park during the GMA concert series:
Meteorologist Bill Evans said the storms to last through Friday evening, prompting this to be an AccuWeather Alert day.
Click here to see the latest AccuTrack radar.
Emergency crews are offering an important reminder:
Please do not drive through flooded streets. Turn around don't drown— HackensackFDNJ (@HackensackFDNJ) August 18, 2017
If you have photos or video of the weather (only capture when it's safe to do so!), send to us via Twitter or Instagram using the hashtag #abc7NY.
Here is the latest AccuWeather forecast: