NEW YORK (AP) -- New York City subway service is back on track for the morning rush.
The Metropolitan Transportation Authority says limited service resumed at 5:40 a.m. Monday.
It says service remains suspended on Metro-North Railroad because of heavy damage from Tropical Storm Irene. Metro-North serves regions north of New York City, from Westchester County to southern Connecticut.
The MTA's decision Saturday to halt all subways, buses and commuter trains in preparation for the storm had threatened to disrupt the start of the work week for millions of New Yorkers.
It was the first time a natural disaster ever shut the system down.
State-by-state look at Irene dangers, damage
Irene, the hurricane that weakened to a tropical storm, thrashed the East Coast, knocking out power to millions of homes and businesses, destroying piers and killing at least 21 people. Here's a state-by-state glance on how it's affected states along the Eastern seaboard:
---- Irene made landfall Sunday afternoon on the state's shoreline with winds of 60 mph.
---- Power cut to much of Bridgeport, the state's largest city, because of flooding concerns at substations. Mayor imposes 8 p.m. Sunday curfew as crews deal with the problem.
---- Officials warned of possible flooding as a storm surge of 4 to 8 feet coincided with an unusually high tide in Long Island Sound.
---- Thousands evacuated along the shoreline, with more than 30 municipalities directing people to leave their homes.
---- State of emergency declared. National Guard mobilized.
---- Last hurricane to hit was Bob in 1991.
---- About 31,000 homes and businesses without power as of late Sunday afternoon.
---- Apparent tornado damages 15 structures near Lewes. Another touched down in Wicomico County. No injuries reported.
---- Residents of a small coastal community were left isolated from their homes after an access road through Prime Hook National Wildlife Refuge in southern Delaware was washed out.
---- Governor says worst of Irene passed Sunday; he went on a helicopter tour of affected areas.
---- Last hurricane to hit was Floyd in 1999; Tropical Storm Isabel struck in 2003.
---- Hurricane kicks up heavy waves killing a 55-year-old surfer when he is tossed off his board; a New Jersey tourist, also 55, dies in rough surf.
---- Heavy rains reached state Sunday.
---- More than 160,000 customers without power by Sunday afternoon.
---- Flash flood warnings in effect Sunday for northern and western Maine. Offshore, seas were expected to build to about 20 feet.
---- Strong winds with gusts up to 50 mph expected through the night and into early Monday.
---- Governor had declared an emergency prior to the storm. No evacuations were planned. Lobstermen began moving their fishing gear farther offshore to avoid damage.
---- At least 645,000 homes and businesses without power late Sunday afternoon.
---- State police report an apparent tornado touchdown on the lower Eastern Shore; no injuries.
---- National Weather Service warns of flooding in parts of southern and central Maryland and the Eastern Shore.
---- Up to 12 inches of rain fell on Ocean City.
----Ocean City, following its first evacuation order since 1985, said Sunday morning that residents and tourists could return.
---- Maryland Transit Administration restored service Sunday after suspending it.
----Bay Bridge and other bridges reopened Sunday after being shut down at height of storm.
---- Last hurricane to hit was Floyd in 1999; state was pounded by Tropical Storm Isabel in 2003.
----In Queen Anne's County, an 85-year-old woman was killed when a tree fell into a chimney, which crashed into the sunroom where she was sitting.
---- The governor deployed 500 National Guard troops, saying an additional 2,000 troops would be activated Saturday.
---- Mandatory evacuations were not ordered.
---- Red Cross positioned emergency response vehicles, mobilized disaster workers.
---- Irene reaches southern New England on Sunday.
---- More than 500,000 power customers lose service.
---- Public transportation in Boston shut down Sunday.
---- Last hurricane to hit was Bob in 1991.
---- Drenching rain and high winds reach state Sunday afternoon.
---- More than 100,000 homes and businesses lose power.
---- No evacuations planned.
---- Governor urged people to stay off the roads and beaches.
---- The Red Cross planned to open four shelters.
---- Organizers of the annual Hampton Beach Talent Competition condensed the three-night schedule to two, telling competitors "it's one song for all the marbles."
---- Irene makes landfall along the New Jersey coast near Little Egg Inlet with 75 mph winds, the first hurricane to make landfall in the state in more than a century.
---- Mandatory evacuations ordered for nearly 1 million visitors and residents.
---- More than 920,000 homes and businesses lose power.
---- 20-year-old woman who had called police to ask for help getting out of her flooded car in Salem County was found dead in the vehicle eight hours later.
---- Governor says more than 15,000 people in shelters.
---- New Jersey Transit trains and buses shut down.
---- Atlantic City casinos shut down for only the third time since gambling was legalized 33 years ago.
---- Irene makes landfall Sunday near Coney Island.
---- Some streets flooded in Manhattan; two major thoroughfares closed.
---- More than 905,000 homes and businesses statewide lose power, about half on Long Island.
---- Southbound lanes of the New York State Thruway closed for 137 miles from Albany to West Nyack. Northbound lanes shut for 90 miles from Westchester County to Saugerties.
---- Bungalows float down streets in Queens. Rescuers search for anyone inside.
---- New York's major airports closed Sunday. Three to reopen for most flights Monday morning.
---- Before the storm, mandatory evacuations ordered for New York City residents in low-lying coastal areas that are home to 370,000. Order lifted at 3 p.m. Sunday afternoon.
---- New York City's public transit system, the nation's biggest, was shut down until at least Monday. The five main New York-area airports also closed. As of 2:30 Sunday, there was no timetable for restarting subways or regional rail systems.
---- Hurricane makes landfall Saturday morning near Cape Lookout. Highest wind gust of 115 mph recorded at Cedar Island ferry terminal. Highest rainfall amount is 15.74 inches in Bayboro.
---- More than 400,000 remain without electricity early Sunday evening, down from 560,000.
----Local officials reported a 13-foot surge from Pamlico Sound into Beaufort County.
---- The Neuse River poured over its banks and into the city of New Bern. Several dozen people were rescued from homes as up to 4 feet of water rushed in.
----Ferries carry supplies to Hatteras Island after the storm caused breaches in the road connecting it to the mainland
---- More than 60 shelters were opened open in 26 counties.
---- Nearly 1900 prisoners evacuated from three coastal prisons.
---- Last hurricane to hit was Isabel in 2003.
---- Flooding in several counties in central and eastern portions of the state.
---- Nearly 700,000 lost power across the state.
---- Governor declared state of emergency.
---- A half-foot of rain fell in Philadelphia. A state of emergency declared by the mayor on Saturday -- the first since one triggered by racial tensions in 1986 -- was lifted Sunday. The rainfall came on top of an already single-month record of more than 13 inches.
---- Mass transit serving Philadelphia resumed bus, trolley and subway service; regional trains set to resume Monday.
---- Philadelphia International Airport reopened Sunday afternoon but no departures scheduled.
---- Last hurricane to hit was Floyd in 1999.
---- Irene made landfall Sunday as a tropical storm.
---- More than 270,000 customers lost power.
---- Rhode Island Emergency Management Agency said state weathered the morning high tide without widespread coastal flooding. But officials were keeping a close eye on water levels heading into the high tide expected at about 8 p.m. Sunday.
---- Federal and state emergencies declared.
---- Mandatory evacuations ordered for low-lying communities including Bristol, Charlestown, Narragansett, South Kingstown, and Westerly. Other communities have voluntary evacuation orders.
---- Residents warned to expect prolonged power outages and property damage.
---- 300 National Guard troops on standby.
---- Last hurricane to hit was Bob in 1991, which made landfall twice.
---- Beach erosion reported at high tide Friday evening on Edisto Island and Folly Beach.
---- About 5,000 customers lost power from storms in Irene's outer bands.
---- No mandatory evacuations ordered.
---- Irene moved away from the state Saturday morning.
---- Last hurricane to hit was Charley in 2004.
---- Heavy rains began falling early Sunday, with flash flooding and evacuations ongoing in southern Vermont by late morning.
---- Flooding expected to occur in northern Vermont as the storm moves in that direction during the day. Rivers in northern Vermont should crest late Sunday night or early Monday.
---- The Red Cross opened shelters, with one in Brattleboro housing about 50 people by midday Sunday.
---- About 18,000 power outages reported by midday Sunday.
---- Nearly 800,000 without power early Sunday evening, down from a peak of about 1 million.
---- Officials say the scope of the damage may not be known for days because some roads could remain impassible and rivers have yet to crest.
---- Suffolk received 11 inches of rain and other localities east of Interstate 95 received about 5-10 inches.
---- Mandatory evacuations were ordered for at least 11 communities, including the Sandbridge section of Virginia Beach, a barrier island dotted with rentals, Accomack on the Eastern Shore, and low-lying areas of Norfolk, Hampton and Portsmouth.
---- The Navy ordered the Second Fleet out to sea to escape the storm.
---- Apparent tornado heavily damaged five homes in the Sandbridge area.
---- Last hurricane to hit the state was Isabel in 2003.
---- About 30,000 homes and businesses without power.
---- About 200 trees were down around the city.
---- Washington National Cathedral officials say Hurricane Irene has not worsened any damage from last week's earthquake that caused significant damage at the church.
---- Approach of hurricane forced postponement of Sunday's dedication of Martin Luther King Jr. Memorial.
---- Public transit in nation's capital never shut down.
---- Last hurricane to hit was Hazel in 1954.