US President Barack Obama has warned that flooding and power cuts are still a risk as Tropical Storm Irene moves away north towards Canada.
The storm, downgraded from a hurricane, passed New York on Sunday but Mr Obama said the danger was not yet over as swollen rivers could burst their banks.
More than 300,000 people evacuated from low-lying areas in New York City are being allowed back home.
The storm has killed at least 18 people and caused extensive damage.
More than three million people have been left without power in New Jersey, Connecticut and New York.
Manhattan avoided major damage, despite some isolated flooding.
"Many Americans are still at serious risk of power outages and flooding
