Update, 2:40 p.m.: GREENWICH, Conn. - Only 16 percent of Greenwich - or about 4,500 customers - remained without power late Monday afternoon, Connecticut Light & Power reported.
Update, 2:40 p.m.: GREENWICH, Conn. - The Greenwich transmission line damaged in Sunday's storm has been repaired, Connecticut Light & Power has tweeted. The utilty now says power has been restored to a majority of its customers in Greenwich.
As of 2:40 p.m., the utility reported 29 percent of the town - or just over 8,000 customers - still in the dark.
Metro-North Railroad tweeted around 3 p.m. that normal service has been restored on the New Haven line. The outage has caused delays throughout the morning.
Update, 1:35 p.m.: GREENWICH, Conn. - A tree that damaged a major transmission line, cutting most power to most of Greenwich Monday, has been removed, Connecticut Light & Power tweeted early this afternoon.
The utility tweeted a photo of the tree being lifted from the line. It also said in the tweet that repairs remain on schedule.
Power was being restored slowly Monday afternoon. As for 1:45 p.m., the number of outages had dropped to 85 percent of the town, or 24,590 customers.
Update, 12:25 p.m.: GREENWICH, Conn. — A tree that fell on a "major transmission line" during Sunday night's thunderstorm has knocked out power to most of Greenwich. Many outages next door in Stamford had been restored by noon Monday.
All power should be restored in Greenwich by 8 p.m., Monday, Connecticut Light & Power says on its website. As of noon, about 95 percent of Greenwich - more than 26,000 customers - was without power and the town had declared a state of emergency.
"Last evening, a severe storm produced a micro-burst of extreme wind that damaged many trees throughout town," the town said in a release. "These trees downed a number of power lines. In addition to damaging trees and property, one of the main transmission lines that provide electricity to the town was damaged."
The line was damaged during the storm's Sunday night but didn't fail completely until 10 a.m., Monday, officials said.
The power outage has knocked out many traffic lights in town and police are urging residents to use caution when driving. The town also has opened cooling centers at the Community Room of the Public Safety Complex, 11 Bruce Place, and the Ben Heim Western Greenwich Civic Center, at 449 Pemberwick Road.
The town also is asking residents and businesses on the municipal sewer system to reduce water use to prevent straining pump stations and treatment plants, which are using emergency power.
Residents can contact the town's Emergency Operations Center at 203-622-3315.
Earlier Monday morning, about 15 percent of Stamford was in the dark. Most of those outages have been restored.
Most Stamford residents should see power return soon, unless they are near Greenwich and tied into the Greenwich transmission, police Capt. Tom Lombardo said.
"Then they will have to wait," Lombardo said.
Check back with the Daily Voice as more information is released.