Tornado Watch in effect through 1 a.m.

AUSTIN (KXAN) -- A Tornado Watch is in effect for much of the area, including Austin, until 1 a.m. Thursday for the potential of tornadoes.Severe thunderstorms are possible even outside of the Tornado Watch, with large hail and damaging winds the main concerns.We are concerned about isolated supercell development near or over the I-35 corridor this evening. Any storms that are able to develop could do so rapidly, and turn dangerous in a hurry. Make sure you download the KXAN Weather App and enab