Rain lashed New York City and Long Island this week.
Water swamped streets in Brooklyn, Queens, and Long Island.
Flash floods swept over homes and businesses.
The National Weather Service issued warnings.
Power lines fell.
Power cuts resulted.
Roads transformed into rivers.
Some areas were cut off.
Emergency teams operated all week.
They rescued trapped residents.
Officials warned people not to drive through water.
Rainfall climbed to levels rarely seen at this time.
More rain may come.
More flooding could follow.