Park Slope & NYC just got pummeled by a fast moving severe thunderstorm & possible tornado in Brooklyn.

This video was shot just before it got really bad. The sky turned green grey - just like the tornado storms back in the Midwest.

It got really dark, lightening strikes everywhere, leaves and branches were blowing…and the the street light outside started swaying violently.

We immediately headed for the first floor.

When we got back upstairs trees were knocked down all over the street and sidewalks!

16.09.10