Be aware of high water areas and choose your routes carefully. WFAA keeps you informed http://www.wfaa.com/story/weather/2015/05/23/weather-blog-everyone-gets-wet-tonight/27855819/. Additionally, remember these facts:
1. It only takes 18 inches of moving water to sweep away an automobile. Drivers often attempt to drive through thinking it won't harm them. This is not true! Most flood related fatalites are caused by people attempting to drive through moving water. Texas' slogan of 'Turn around don't drown!" should be ringing loud in your ears. Also, make young drivers aware of this as they tend to think 18 inches of water is okay.
2. Lightning can strike anywhere at any time. If you hear thunder, then you are close enough to a storm that you can be struck by lightning. It's always safer to be indoors in any storm. This will also minimze the likelihood of you being struck by flying debris which typically accompanies large storms.
3. If you live near elderly people who might turn off their televisions or radios before they are aware of an overnight storm, it is important to have a plan in place to help them get to an appropriate shelter should the need arise.
4. Have a meeting place set for you and your family in the unlikely event you find yourselves in a tornado.
5. LIsten to ALL WARNINGS and advisories. It is imperitive to your health and well being that you seek shelter immediately in a warning situation.
6. The Texas Department of Public Safety offers these tips: https://www.txdps.state.tx.us/dem/ThreatAwareness/weather_aware_severe.htm