Powerful thunderstorms, flood threat after smoke surge in NYC, Tri-State: Live updates

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Last updated: Saturday, July 18, 2026 7:07PM GMT
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NEW YORK (WABC) -- It will be a one-two punch of bad weather on Saturday: Smoky skies followed by severe storms that have already prompted a Flash Flood Warning as downpours drench parts of the region.

After a welcome reprieve on Friday, smoke from Canadian wildfires returned to New York City and the Tri-State area on Saturday, once again creating unhealthy air quality.

Those smoky conditions are expected to gradually improve through the day as winds shift, but a new problem has emerged: Strong to severe thunderstorms, which, while helping to clear the smoke, will bring a round of hazardous weather to much of the region. The first powerful storm swept through parts of northern New Jersey and New York City, with a Flash Flood Warning in effect through 2 pm.

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The storms could produce flooding downpours, damaging wind gusts and even a few isolated tornadoes, making for a stormy finish to the day.

Use our Air Quality Tracker to see the latest conditions.

Fine particle pollution from wildfire smoke can cause shortness of breath, coughing, dizziness, or fatigue, and can aggravate heart and lung diseases and other chronic health issues.

Experts suggest reducing or eliminating outdoor activities, wearing an N95 mask if you have to be outside and keeping your indoor air cleaner by closing windows and running an air purifier or air conditioner.

Check back for live updates.

Key Headlines

Here's how the news is developing.
Jul 15, 2026, 7:25 PM GMT

All of NY will see visible smoke, DEC commissioner says

State DEC Commissioner Amanda Lefton said they expect air quality to deteriorate throughout the day "as we continue to see impacts from wildfires."

"Throughout the day people are going to experience spikes in air quality that will be problematic, we are going to continue to see perhaps waves of poor air quality throughout the day," Lefton said. "It's going to start in western and central New York and make its way down to the Lower Hudson Valley and New York City, the entire state could and will likely see poor air quality today."

Lefton said the entire state will see visible smoke. That is not necessarily indicative of air quailty, because that might be happening at higher levels.

Jul 15, 2026, 7:25 PM GMT

Mayor Mamdani posts that air quality has reached unhealthy levels

Mayor Mamdani posts that air quality has reached unhealthy levels

Jul 15, 2026, 7:25 PM GMT

NYC air quality reaches unhealthy level due to smoke

Just after 2 p.m., Chief Meteorologist Lee Goldberg said that the Air Quality Index has spiked to an unhealthy level.

Jul 15, 2026, 7:25 PM GMT

NYC Emergency Management offering free masks

NYC Emergency Management is warning New Yorkers to stay safe amid the Air Quality Advisory.

They say free masks are available throughout the city: