New Delhi, March 25 -- Crews on Tuesday began evaluating damage from a surprise downpour that sent floodwaters raging through a neighborhood near downtown Honolulu - the latest bout in a series of storms and flooding that have pummeled the state over the past two weeks.

Residents along Oahu's North Shore, famous for its big wave surfing, were cleaning up from the worst flooding to hit Hawaii in two decades when a storm Monday unleashed several inches of rain on the southern part of the island. Reddish-brown torrents gushed along roads in the Manoa Valley, a few miles east of downtown Honolulu, sweeping away parked cars and swamping much of the neighborhood.

"I was shocked to see how much flash flooding there was in my area," said reside...