Mayor Zohran Mamdani launched what the city called an “unprecedented” emergency heat plan ahead of the July Fourth weekend, standing up hundreds of cooling centers, mobile medical vans and homeless outreach teams as the National Weather Service warned of a heat index climbing as high as 111 degrees. The rollout was first reported by the Brooklyn Eagle.

Mamdani announced the plan at a Tuesday press conference at the city’s Emergency Management headquarters in Downtown Brooklyn, timed to a weekend when New York was already packed with visitors for the World Cup, the nation’s 250th anniversary and the Fourth of July fireworks.

“These are extraordinary temperatures,” Mamdani said. “As New York City hosts the World Cup, Sail4th and the Fourth of July fireworks, to be breaking into the triple digits is of enormous concern.”