Severe weather will bring sizzling temperatures and strong thunderstorms to New York on Thursday and Friday — even offering intense enough conditions for a tornado to form, according to forecasters.
New York City will be under a heat advisory starting mid-day Thursday into Friday as hot and humid conditions will cause the heat index to skyrocket to the upper 90’s and low 100 degrees Fahrenheit, according to the National Weather Service.
Isolated thunderstorms — some that are capable of becoming severe — are expected to pummel the New York region and cause severe winds and localized flooding, the NWS said.
Pedestrians carry umbrellas in Downtown Brooklyn on Saturday, May 23, 2026 in Brooklyn, NY. Michael Nagle for NY PostHail and even an isolated twister are possible, with the worst chance of severe weather slated for late-day Thursday, NBC’s Storm Team 4 reported.
The threat zone for the isolated weak tornado on Thursday will cover most of the tri-state area, according to the outlet.
By Saturday, humidity levels will drop in time for the FIFA World Cup to come to MetLife Stadium in New Jersey.
Daytime heating, along with moisture, will allow for severe storms to develop.
More than 50 million Americans will be under a Level 2 out of 5 severe storm risk. Michael Nagle for NY PostNew York City Mayor Zohran Mamdani urged New Yorkers to exercise caution while traveling over the next three days and watch out for downed trees and power lines.
“Extreme heat is deadly, so please seek out air conditioning and help your neighbors do the same,” Mamdani wrote on X.
“Scattered showers and thunderstorms may continue through Friday. Stay vigilant for potential flooding.”
