In a city that normally sees very little precipitation this time of the year, nearly two inches of rain fell during a 30-minute period in mid afternoon. The downpour flooded several buildings in midtown, including the basement of the capitol. The rain also resulted in the collapse of the roof of a grocery on Folsom Blvd., sending thousands of gallons cascading into the store. There were no reported injuries. Rising water on roads, including Interstate Five near “J” Street, resulted in lengthy traffic delays. Sergeant Dan Snook of the California Highway Patrol says some vehicles stalled in the rising water, but no traffic accidents were reported.  SNOOK :05—I think people were pretty much taking it in stride, ‘hey it’s pretty bad out here and we need to slow down’ and they did a good job.  The National Weather Service says Sunday's storm was part of a cold weather front that originated in the Gulf of Alaska. Bob Hensley KXJZ News.