Rain lashed New York City and Long Island this week.
Water swamped streets in Brooklyn, Queens, and Long Island.
Flash floods hit homes and businesses.
The National Weather Service posted warnings.
Power lines fell.
Power cuts ensued.
Roads turned into rivers.
Some areas were cut off.
Emergency teams toiled all week.
They helped trapped residents.
Officials advised people not to drive through water.
Rainfall reached levels rarely seen at this time.
More rain could come.
More flooding might follow.