Henri is expected to strengthen into a hurricane, possibly Category 1 level, and make landfall Sunday night near Newport.

The National Weather Service’s Boston office said residents should be prepared for life-threatening storm surge and wind, dangerous rainfall, considerable property damage, snapped or uprooted trees, impassable roads, power and communications outages across large areas, rip currents and beach erosion.

Rhode Island Governor Dan McKee said state agencies will coordinate hurricane response out of an emergency operations base in Cranston.

"We want to alert people in the state that they should be prepared for some high winds and some rain," McKee said at a Friday morning press conference. He warned that the wind could take down tree limbs, resulting in power outages. "So you should be preparing for that in a way that makes sure that you're safe."

Storm surge and hurricane watches are in effect in Rhode Island for Bristol County, Newport County, Eastern Kent County, Washington County and Block Island, as well as Nantucket County, Barnstable County, Dukes County, Southern Bristol County, and Southern Plymouth County in Massachusetts. A hurricane watch is also in effect for Western Kent County in Rhode Island.

Tropical Storm Henri was on Friday morning 780 miles south-southwest of Nantucket and moving northward at 9 miles per hour with a storm intensity of 65 miles per hour, the Weather Service said.

Forecasters predict the storm will weaken quickly once it hits land and pass through the region slowly on Monday.

The Public’s Radio’s John Bender contributed to this developing story. Check back for updates.