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