Tornado probability for Houston and Austin There’s storms, hail and strong winds in our scope of probability today. There is a 10% chance for some local areas. In the picture below, where the black dots are located, there is a chance for strong tornados. This probability includes northern parts of Harris County, and counties north and northeast of our area. Severe hail probability for Houston, Harris County, San Antonio, Dallas and Austin There is a 30% severe hail probability for northern parts of Houston and Harris County along I-10. The 30% probability of severe hail reaches as far west as Austin and just south of Dallas and as just northeast of San Antonio. Severe wind probability for Houston, Austin, San Antonio and Dallas There is a 30% range of probability for severe winds north of Houston and parts of Harris County north of I-10. This probability reaches as far northeast as Alexandria and as far north at Hwy 20 east of Dallas. There is lesser chance of severe wind at 15% for areas west and southwest of Houston, as far as San Antonio and Austin. Check weather for your area at CW39.com/weather.