File photo. Storms are affecting flights in New York's LaGuardia. (Credit: Bruce Bennett/Getty Images)

(CNN) -- The storms are affecting flights at LaGuardia Airport Friday morning.

The Federal Aviation Administration is halting flights at LaGuardia because of flooding that prevents ground crews from accessing parts of the ramps.

The agency's latest advisory says there is flooding at the "fuel farm" and "marine area terminal." The FAA has warned airlines to "expect potential delays of arrivals at LGA Airport due to (thunderstorms) and flooding affecting the terminal."

• Heavy rains across New York City and parts of the Northeast could flood subway and roads

At the moment there are very few cancellations, but delays are increasing very quickly. One in five LaGuard-bound flights is currently delayed and one in ten outbound flights is delayed, according to FlightAware.

The Port Authority, which manages the airport, says it has closed LaGuardia's smallest terminal, Terminal A, due to "bad weather."

New York Gov. Kathy Hochul declared a state of emergency throughout New York City, Long Island and the Hudson Valley due to Friday's extreme rains across the region.

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In a post on X, formerly Twitter, the governor said, "Please take steps to stay safe and remember to never attempt to travel on flooded roads."

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