Heavy rain, storms and gusty winds were possible in NYC, with flooding expected to impact the afternoon and evening commute. Here's a timeline and impacts to expect.

STATEN ISLAND, N.Y. — A weather alert has been issued by the New York City Emergency Management Department in anticipation of a storm forecast to impact the city on Thursday. In coordination with the National Weather Service, the department is monitoring a low-pressure system set to deliver heavy rainfall and gusty winds to the five boroughs.

John F. Kennedy International Airport is under a ground stop until 7:30 p.m. Friday due to staffing shortages, New York City Emergency Management said. The airport is also on a ground delay through early Saturday morning due to high winds and staffing.

Brooklyn and Manhattan were under a flash flood warning Thursday afternoon as heavy downpours fell across the city. Up to 4 inches of rain could fall in the area by late Friday, according to the National Weather Service, with gusting winds of up to 50 miles per hour possible in coastal areas of New York, New Jersey and Connecticut.

Rain will intensify throughout Thursday, with the heaviest downpours expected late afternoon into early evening.

Parts of New York City saw record-breaking rainfall totals on Thursday, according to officials, as flooding in the city reportedly left two dead. NYC Emergency Management said on Thursday that Central Park saw 1.80 inches of rain fall, surpassing the previous record of 1.64 inches set back in 1917, according to the National Weather Service (NWS).

Two people died in flooded basements on Thursday after heavy rain overwhelmed streets and subway stations in New York City. The New York Police Department confirmed the two deaths to ABC News.

Weather is causing disruptions at airports like LaGuardia in Queens. Here's how to check if your flight is delayed.

Damaging winds are forecast to rake much of the Northeast Friday, a day after record-breaking rains swept New York City and left two people dead.