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HOUSTON - The National Weather Service has updated the tornado watch issued for several counties north and west of the Houston-area.

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

Those counties include: Austin, Colorado, Grimes, Montgomery County, Polk, San Jacinto, Trinity, Walker, Waller, and Washington and Washington County.

A tornado watch means that conditions are possible for strong to severe weather that could produce a tornado.

The watch is in effect now until 11 p.m. Sunday night.

If you haven't already, download the free FOX 26 Houston Weather App and we will keep you up-to-date with the latest weather alerts as necessary.