New York City Mayor Zohran Mamdani imposed a sweeping travel ban across the five boroughs ahead of a powerful winter storm expected to strike the region, shutting down non-essential traffic as officials brace for blizzard conditions.

Speaking at a press briefing, Mamdani said he was declaring a state of emergency in advance of the storm. Under the order, all city streets, highways and bridges will be closed to non-emergency vehicles beginning at 9 p.m. Sunday, with the restrictions set to remain in place until noon Monday.

The prohibition covers virtually every form of transportation, including passenger vehicles, commercial trucks, scooters and e-bikes. Only emergency responders and workers performing critical services will be permitted to travel during the ban.

Forecasters have placed millions of residents across the Northeast under blizzard warnings as a rapidly intensifying bomb cyclone is forecast to bring as much as two feet of snow along the heavily traveled I-95 corridor. Meteorologists warned of wind gusts reaching 70 miles per hour and cautioned that widespread power outages are likely as the storm strengthens through Sunday night.

Air travel has already been heavily disrupted, with more than 7,000 flights canceled across the Northeast by Sunday afternoon.

Major metropolitan areas including New York City, Boston and Philadelphia are expected to receive between 18 and 24 inches of snowfall. Washington, D.C., is projected to see between five and eight inches, while snowfall estimates for nearby Baltimore have been slightly reduced overnight.

Blizzard warnings currently cover approximately 29 million people.