Heavy rain swept through New York City and northern New Jersey on Saturday, July 18, 2026, triggering flash flood warnings and widespread travel disruptions. The National Weather Service reported up to 3 inches of rain falling in several areas within hours, with rainfall rates reaching 1 to 2 inches per hour, overwhelming drainage systems in parts of the region.
Newark Airport Ground Stop and Regional Road Closures
Newark Airport enforced a ground stop due to severe thunderstorms and flooding affecting northern New Jersey. Several highways experienced closures, notably the Clearview Expressway in Queens near Northern Boulevard, which was shut down in both directions. Standing water on the Long
Island Expressway and Maurice Avenue caused significant traffic delays. Authorities advised drivers to seek alternative routes as emergency crews worked to address flood conditions.
Rainfall Totals and Flood Warnings
The National Weather Service issued flash flood warnings across New York City and northern New Jersey, including a flood advisory for the Bronx valid through 3:30 p.m. Additional storms forecast to bring 0.5 to 1 inch of rain heightened concerns over urban flooding. Meteorologists warned that further heavy rain bands could worsen flash flood risks, particularly in low-lying neighborhoods and areas with poor drainage.
Flight and Traffic Disruptions in New York City Area
Flight operations were disrupted at LaGuardia Airport as adverse weather affected schedules
throughout the day. Traffic congestion was reported on multiple roadways due to flooded conditions and closures. NYC Emergency Management urged residents to avoid unnecessary travel and remain cautious amid the flooding.
Official Advisories and Safety Warnings
NYC Emergency Management issued a statement: “Localized flooding reported in parts of NYC. Don’t enter flooded roads or buildings. Stay out of flooded basements. Move to higher ground/floor if needed. Call 911 if you need immediate assistance. Avoid unnecessary travel.” LaGuardia Airport advised passengers to consult their airlines before traveling due to ongoing schedule changes.
