Live updates on NYC's America 250 celebrations

Strong evening thunderstorms could wreak havoc on July 4th fireworks celebrations across the Tri-State area on the final day of a dangerous heat wave.

A Severe Thunderstorm Watch has been issued for New York City, most of New Jersey and portions of the Hudson Valley until 11 p.m., with any storm having the potential to produce damaging winds, downpours and even some hail.

The timing of the storms could coincide just as fireworks kick off across the region, including New York City, which could see storms move in during the 9 p.m. and 10 p.m. hour.

Jeff Smith has an update on a severe thunderstorm watch issued for much of the Tri-State area.

As Long Islanders celebrate 250 years of American history, beachgoers packed Robert Moses State Park on July 4th.

Lindsay Tuchman is at Robert Moses Beach where patriotic beachgoers were enjoying the July 4th holiday weekend.

Volunteers at the 9/11 Memorial & Museum placed an American flag on each of the 2,983 names at the 9/11 Memorial in New York City.

This annual Independence Day tradition honors the victims of September 11, 2001, and serves as a powerful reminder that remembrance is woven into the story of our nation.

"As our nation celebrates its 250th birthday, we honor the ideals that have always united us even in our most challenging days: service, resilience, and our shared commitment to one another," said Beth Hillman, President and CEO of the 9/11 Memorial & Museum. "This year's July 4th observance is especially meaningful, coming just weeks before we commemorate 25 years since September 11, 2001. These volunteers today are living out our mission to remember those killed, honor those who responded with extraordinary courage, and preserve these stories for future generations."

Hundreds of people gathered at Pier 84 along the Hudson River on Saturday to watch tall ships sail past and fighter jets streak across the sky as part of a celebration marking the nation's 250th birthday.

Spectators from across the country lined the waterfront, taking in the ship parade and aerial demonstrations while photographing dozens of vessels from other countries participating in the celebration of America's founding.

Marcus Solis reports from the banks of the Hudson:

Marcus Solis reports from the banks of the Hudson