Disaster Planning and Recovery Committee have put together these three links:

Texas Bar Association:

https://www.texasbar.com/AM/Template.cfm?Section=Disaster_Resources_for_Attorneys&Template=/CM/ContentDisplay.cfm&ContentID=37846

Austin Bar Association:

https://www.austinbar.org/for-the-public/legal-resources/disaster-relief/

Texas Rio Grande Legal Aid:

http://www.trla.org/disasters