A screen shot of thunderstorms moving into the Long Island...

A screen shot of thunderstorms moving into the Long Island area taken at 3:57 p.m. Credit: wunderground.com

The National Weather Service posted a severe thunderstorm watch for Long Island on Friday afternoon, saying large hail, damaging winds and heavy rain were possible.

The watch, which lasts until 9 p.m., covers Nassau, Suffolk and all of New York City, as well as several upstate counties.

Friday's high would be near 82, the agency said.

Saturday will likely be mostly cloudy, then gradually becoming sunny, with a high near 84.

Sunday will be sunny with a high near 82.

Pfc. Raheen Tyson Heighter, of Bay Shore, was killed in Operation Iraqi Freedom. His mother has made it her mission to aid active-duty service members, veterans, first responders and Gold Star families. NewsdayTV's Virginia Huie reports. Credit: Randee Daddona; Photo credit: Cathy Heighter

'His sacrifice made a difference': Gold Star mother honors son's memory Army Pfc. Raheen Tyson Heighter, 22, of Bay Shore, was the first serviceman from Long Island killed in the Iraq War.

Pfc. Raheen Tyson Heighter, of Bay Shore, was killed in Operation Iraqi Freedom. His mother has made it her mission to aid active-duty service members, veterans, first responders and Gold Star families. NewsdayTV's Virginia Huie reports. Credit: Randee Daddona; Photo credit: Cathy Heighter

'His sacrifice made a difference': Gold Star mother honors son's memory Army Pfc. Raheen Tyson Heighter, 22, of Bay Shore, was the first serviceman from Long Island killed in the Iraq War.

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