Houston Weather: Tornado watch issued for counties north of Houston-metro

The National Weather Service has issued a tornado watch for several counties north of the Houston-metro area. 

The following counties are included in the watch: Grimes, Montgomery, Polk, San Jacinto, and Washington County. 

The watch is in effect until midnight Thursday morning. 

A tornado watch means conditions are favorable for possible tornado development. 

FOX 26 Houston is now on the FOX LOCAL app available through Apple TV, Amazon FireTV, Roku, Google Android TV, and Vizio!

To stay up-to-date with the latest weather updates, download the free FOX 26 Houston Weather App for your iPhone or Android device