New York City has been brought to a standstill by a historic snowstorm, with up to 70 centimeters of snow and wind gusts of 80 km/h expected. Mayor Zohran Mamdani declared a state of emergency and a travel ban, effective from Sunday 9 PM to Monday noon, affecting most vehicles except for essential workers and emergency personnel. This is the second major winter event for the city this year, following a cold snap in January that caused numerous deaths. Schools will be closed on Monday, a first in seven years, and the United Nations headquarters in Manhattan will also shut down. The storm has already led to thousands of flight cancellations and power outages across the northeastern United States, with Boston also anticipating significant snowfall.