ROCKLAND COUNTY, N.Y. (CBSNewYork) — There was a real light show overnight in Rockland County.

One Twitter user posted video of near-constant ribbon lightning for about 20 seconds or so.

The violent weather was accompanied by a tornado warning for counties north of New York City, staring around 10 p.m. Monday.

Some twisting in the atmosphere was detecting, but there were no reports of anything touching down.

CBSNewYork Team