Aerial view of flooding in San Marcos, looking at the area near the Walmart on Texas 80 east of Interstate 35 on Sunday morning, May 24, 2015. At least 1,000 people are in shelters in Wimberley and San Marcos, officials said in a news conference Sunday morning. At least 400 homes in the two communities have been destroyed and many more are damaged, officials said. Video by Rodolfo Gonzalez/American-Statesman. Follow statesman.com for updates  #statesmanvideo #txweather #txflood #smtxflood #sanmarcosflood #sanmarcos #hayscounty #flood #smtx #sanmarcosriver