The Massachusetts Emergency Management Agency confirmed "close to 490,000 customers" were without power as of 8:30 a.m. ET, which includes nearly 300,000 in Barnstable and Plymouth counties covering Cape Cod and an area south of Boston, NBC News reports.
The National Weather Service in Boston warned of a "dangerous situation" in the area near and southeast of I-95, which serves as the East Coast's main higway, early Wednesday (October 27) morning via Twitter.
"Dangerous situation early this morning near and southeast of the I-95 corridor," the verified agency wrote. "Winds gusting over Hurricane Force across southeast MA. Numerous downed trees and over 400K power outages in MA alone. TRAVEL IS NOT RECOMMENDED early this morning in southeast MA."
NBC News reports the storm has already caused flooding in New York and New Jersey, leading to emergency services and resue missions being conducted in both states.
Coastal areas in the Bay State are facing the biggest threat of the ongoing storm, which is reported to have winds reaching up to 97 MPH capable of bringing down treees and power lines.
The Barnstable County Regional Emergency Planning Comittee announced all schools on the Cape have been closed Wednesday amid the ongoing storm.
Downed trees also disrupted parts of the popular Red Line and Mattapan Trolley service in Boston, according to the Massachusetts Bay Transportation Authority, which deployed replacement shuttle buses amid the devastation, via NBC News.
The Massachusetts Emergency Management Agency is warning residents to "avoid downed power lines, check on neighbors, and use generators outside away from buildings" amid the ongoing devastation.