08/27/2011 09:04 pm ET Updated Oct 27, 2011

NYC Hurricane: Tornado Watch Issued By National Weather Service For New York City

The National Weather Service has issued a tornado watch for New York City and the surrounding areas including Westchester and Rockland Counties as Hurricane Irene approaches. The "watch" is in effect until 5am.

A "watch" indicates that while conditions may be ripe for dangerous weather, such weather is not necessarily an immediate threat.

Hurricanes often provide favorable conditions for tornados.

This is a developing story.