More than 20 inches of rain possibly fall in some areas , the weather service says . A St. Landry Parish official estimates 2,000 people affected by the floods . `` There was a forecast of some heavy rains , but I do n't think anybody could have predicted that amount of rain , '' he said . The National Weather Service has issued a flash flood watch for parts of Louisiana and Mississippi through Sunday morning as more heavy rains are expected to cause flooding along rivers that feed into Lake Borgne. Floodwaters surround a bus filled with middle school students .
More than 20 inches of rain possibly fall in some areas , the weather service says . A St. Landry Parish official estimates 2,000 people affected by the floods . The National Weather Service has issued a flash flood watch for parts of Louisiana and Mississippi through Sunday morning as more heavy rains are expected to cause flooding along rivers that feed into Lake Borgne. Floodwaters surround a bus filled with middle school students .