Welcome to the Southwest Texas Rain Enhancement website!

The Southwest Texas Rain Enhancement (SWTREA) is a weather modification project located in Southwest Texas and has been operating since 1999. It is one of four of its kind operating in the state of Texas. It is a four county target area consisting of Zavala, Dimmit, LaSalle, and Webb counties.  Weather modification operations occur in this four county target area from March 15th to November 15th.  Additionally, Uvalde County is operated by the SWTREA for the Edward Aquifer Authority (EAA) during the months of May through September. A project map can be found here, where the target area is outlined in yellow. The project operates 24 hours a day and conducts both rain enhancement and hail suppression activities.  Look around the site and learn more about our project and weather modification in general!

The 2011 season began on March 15th, 2011!  The first week of the season has not offered any flight opportunities but computer models show a possibility for operations around the 30th over south Texas!  Check back periodically for seeding operation updates and new additions to the photo album.