Storm Henry- NYC residents told to stay at home: What you need to know

picture courtesy: BBC/Reuters

A state of emergency has been declared in parts of New York states as winds of 120kmph and as much as six inches of rain is expected.

Tropical Storm Henri, which is expected to hit New York's Long Island and southern parts of New England on Sunday, has already been downgraded from a hurricane.

But officials say the threats to the region remain high.

More than 50 million people are currently under weather alerts, according to CNN, with more than 12 million under a storm surge warning, 5 million under a hurricane warning, and 37 million under a tropical storm warning.

NYC residents have been told to stay at home under a state of emergency. There are reports of flooding in New Jersey.

Millions on Long Island have braced for the possibility of flooding, fallen trees and power outages.