Isolated to widely scattered thunderstorms have developed over the last hour across portions of South-Central, Central, and East Texas. A few of these storms are now severe and capable of producing quarter size hail along with localized 50 to 60 MPH wind gusts. One of these storms crossed I-35 just north of downtown Austin while additional storms are building just south and southwest of the San Antonio metro. More storms, possibly producing hail, will move east into Austin over the next hour. Another severe storm will be moving into Lufkin in the next 30-40 minutes. The storms south of San Antonio are moving southeast at about 20-30 MPH, while the storms across Central Texas and East Texas are booking it east/southeast at nearly 60 MPH. We can thank a stronger upper level jet for those faster storm speeds. This will likely continue through the early evening hours as storms continue to progress south and east. For that reason the Storm Prediction Center has a severe thunderstorm watch in place for parts of East Texas, the Brazos Valley, extending into Southeast Texas and South-Central Texas. The threat for severe storms will end by about 10 PM in Southeast Texas and East Texas as storms move east of Texas or out into the Gulf of Mexico. South Texas, the Middle Coast, and the Rio Grande Valley will have to deal with the storms into the late evening hours. However, the threat for severe weather should be localized to Deep South Texas and the Rio Grande Valley by late this evening with some storms producing large hail and localized damaging wind gusts.

Simulated model output through the morning hours Wednesday