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‘Extremely high’ rates of heat-related ER visits, CDC says, with more coming Saturday
Officials said 209 heat-related 911 calls and 151 emergency room visits were reported Wednesday as dangerous conditions strained the city’s power grid.
Emergency medical crews responded to 209 heat-related calls on Wednesday, and hospitals recorded 151 heat-related emergency room visits the same day in New York City, according to city health figures.
Central Park reached 100 degrees—the city's first triple-digit reading in over a decade—while the heat index climbed above 105 on Thursday, creating dangerous conditions across all five boroughs.
The New York Independent System Operator issued an "energy watch" Thursday citing declining reserves, while Con Edison reported scattered outages affecting Staten Island and Riverdale as demand for air conditioning strained the grid.
Mayor Zohran Mamdani urged New Yorkers to set air conditioners to 78 degrees to conserve energy, stating, "During a historic heat wave, AC will save lives." NYC Emergency Management directed residents to cooling centers.
City health data reveals serious heat waves are becoming more frequent, with three already this summer compared to two in all of 2025, intensifying the burden on emergency services as conditions worsen.