Severe thunderstorms and flash floods struck the northeastern United States on July 31, 2025, killing one child in Maryland and prompting states of emergency in both New York and New Jersey. The flooding brought widespread travel disruptions, transit shutdowns, and evacuations, affecting over 50 million people across the region.
In Maryland, tragedy unfolded in Mount Airy where a young boy was swept into a storm drain during the downpour. Despite the efforts of 50 first responders, he was pronounced dead at the scene. Parts of central Maryland, including Joppatowne, Perry Hall, and Bethesda, recorded between 100–150 mm (4–6 inches) of rain in just a few hours. Cellphones buzzed with flood alerts as streams and drainage systems were overwhelmed.
🚨 HAPPENING NOW: Severe flash flooding is impacting Western Maryland as relentless heavy rain has drenched the region. Multiple flash flood warnings remain in effect for the Mid-Atlantic. pic.twitter.com/e1jNIn6JXb
— WeatherNation (@WeatherNation) May 13, 2025
Flash flooding hit the I-95 corridor from Washington, D.C., to northern New Jersey. The National Weather Service issued multiple warnings, citing rainfall rates as high as 75 mm (3 inches) per hour. Meteorologists described the conditions as unusually intense, driven by a slow-moving cold front with high atmospheric moisture. Emergency officials warned commuters not to cross flooded roads and urged evacuation from basement apartments.
New York Governor Kathy Hochul declared a state of emergency for New York City and nearby counties Thursday afternoon. “I am urging all New Yorkers to stay vigilant, stay informed, and use caution,” she said, advising employers to dismiss workers early. Mayor Eric Adams also issued a local state of emergency as floodwaters overtook major roads and subway stations.
Up to 125 mm (5 inches) of rain was forecast for parts of the city, with isolated areas receiving up to 180 mm (7 inches). Several major transit lines, including the A, D, E, B, F, and C trains, experienced delays or partial suspensions. The Q line was halted temporarily due to a downed tree. At the height of the storm, the Long Island Rail Road’s Port Washington branch was suspended, while floodwater poured onto platforms in Queens. Actor Joon Choi reported a two-and-a-half-hour commute from Manhattan, where a ride home would have cost him $400 through ride-sharing services.
In New Jersey, Acting Governor Tahesha Way declared a state of emergency as entire roadways disappeared under water. Flooding submerged parts of I-280 in Orange and U.S. Highway 22 in Plainfield. Vehicles were stranded in Summit and Elizabeth. Torrential rains are expected to continue into Saturday, August 1, with some areas forecast to receive up to 180 mm (7 inches).
Huge storm and flooding in NYC today. This is 4th Ave and Carroll St in Brooklyn, which is near Gowanus Canal, a superfund site.
— Dr. Lucky Tran (@luckytran) September 29, 2023
Reminder: Do not go in the flood waters, it contains pathogens and is a threat to human health.pic.twitter.com/uzPQLfSL3G
🚨🇺🇸 NYC Grand Central Floods!
— Rizwan Shah (@rizwan_media) July 31, 2025
A State of Emergency grips New York as Grand Central Station fills with water and more heavy rains are on the way.#NewYork #Flooding #USA pic.twitter.com/xFfYQ9tWrB
Air travel was also severely impacted. Hundreds of flights at Newark, LaGuardia, and JFK airports were canceled or delayed, with average wait times between two and three and a half hours. The Yankees game was delayed due to the storm, and photos from the city showed streets and expressways underwater, particularly in Queens and Staten Island.
The intense rainfall followed days of extreme heat and humidity across the East Coast. According to AccuWeather, the unusually high moisture in the atmosphere was rapidly released when the front moved in, triggering the flash floods.
This latest event comes just two weeks after a separate storm killed two people in New Jersey and broke a 117-year-old daily rainfall record in New York City. Authorities fear the recurring storms highlight a growing pattern of extreme weather in the region.
