Officials in parts of Texas are warning that flooding could last for weeks in the wake of unprecedented amounts of May rainfall. Those rainfall totals, which have now topped 20 inches since May 1 at several locations, will climb still higher over the Memorial Day weekend as thunderstorms dump even more rainfall on an already water-logged region. Catastrophic flash flooding overnight Saturday into early Sunday flooded hundreds of homes in Hays County, Texas, including areas near Wimberley and San Marcos. Major flash flooding was also reported in and south of the Dallas-Ft. Worth metro area, and in parts of Oklahoma Saturday into early Sunday.

The National Weather Service in Corpus Christi, Texas, says flooding is likely to continue for weeks along the Nueces River just west of Corpus Christi. The flooding is affecting a stretch downstream of the Wesley Seale Dam, which impounds Lake Corpus Christi. That reservoir has reached its full capacity due to widespread heavy rainfall upstream across South Texas this month. In a disaster declaration issued Thursday, Nueces County Judge Loyd Neal said water releases from the dam began this past weekend “in order to prevent damage to [the dam] and to avoid uncontrolled downstream impacts.” About 100 homes have already been cut off by floodwaters, and hundreds of homes are at risk of flooding in the days ahead. FULL REPORT