Heavy winds gusting to 55 mph have knocked out power to 533 Darien customers of Connecticut Light & Power Co., representing 7 percent of the utility's service area in town, as of 6 p.m.
According to the National Weather Service, wind advisory remains in effect until 6 a.m. Wednesday in southern Connecticut as well as New York City and Long Island.
The NWS said the "highest threat potential is late afternoon through late tonight. This potential will be enhanced in areas of heavy showers or thunderstorms."
Residents are to be cautious about downed limbs and possibly trees and power lines.
Additionally, the NWS has issued a tornado watch, which is in effect until 11 p.m. Tuesday for southern Connecticut. A coastal flood advisory also is in effect from midnight Tuesday to 3 a.m. Wednesday for towns along Long Island Sound. The NWS warns of widespread minor coastal flooding.
Throughout Tuesday evening, the temperatures will be in the mid-70s and dipping into the 60s. On Wednesday, the forecast calls for partly cloudy skies with temperatures in the mid- to upper 60s with the winds diminishing.