They were among the eight dead in New York City, which also includes an 86-year-old woman who died in her basement apartment in Elmhurst, Queens. More people have now been found dead in New York City from Ida than in Louisiana, which had days to prepare for the storm. The first time we've issued a Flash Flood Emergency was for Northeast New Jersey an hour ago,' the agency tweeted. All New York City subway lines were suspended on Wednesday night and non-emergency vehicles were banned until 5am Thursday. New York's flash flood emergency warning now means more than 60 million people throughout the northeast are under flash flood watches while Ida continues to devastate the area.