Flash flooding in San Antonio killed at least two on Saturday in what forecasters said was the second-wettest day in the city’s history. “Heavy downpours” were forecasted until 8 a.m. Sunday, and the San Antonio River reached a record-high crest. “This year has been like any other for us,” said Michael Bennett, the regional chief executive director of the American Red Cross. “Just when we think we can catch our breath, along comes another disaster.” An estimated 200 people were rescued by emergency workers from Saturday’s storm, although at least one teenage boy is still considered missing. An estimated 9.8 inches of rain fell on San Antonio, making it the second wettest day on record after Oct. 17, 1998.