Flash flood watch for Nassau

Showers and thunderstorms were expected again on Long Island Friday afternoon and evening, prompting the National Weather Service to issue another flash flood watch for Nassau into Friday night.

Some of the storms may produce gusty winds and heavy rain, with rainfall totals between a tenth and a quarter of an inch or higher in thunderstorms, the agency said. Friday's high will be near 72 degrees.

The rain follows downpours on Thursday that flooded parts of the Island.

Saturday will be partly sunny with a high near 79. There will be a chance of showers and thunderstorms after 11 a.m., and Sunday will be mostly sunny with a high near 78.

Runoff from Thursday's heavy rainfall prompted swimming advisories and closures at several Nassau and Suffolk beaches.

In Suffolk, the health department issued an advisory Thursday against bathing at 22 beaches because heavy rain can cause high bacteria levels at those beaches.

The beaches include:

Stony Brook Yacht Club

Stony Brook Beach

Little Bay Beach

Bayview Beach

Bayberry Cove Beach

Grantland Beach

Scott's Beach

Tide Beach

Broadway Beach

Woodhull Landing

Miller Place Park Beach

Sound Beach East

Sound Beach West

Havens Beach

Terraces on the Sound

Shoreham Shore Club

Friendship Drive Beach

Shoreham Village Beach

Shoreham Beach

Beech Road Beach

Sound View Beach Association

Indian Field Beach

Steer's Beach in Northport and Valley Grove Beach in Eatons Neck are still closed to bathing because of elevated bacteria counts.

The county's Bathing Beach Hotline is 631-852-5822. The county Health Department's Office of Ecology is at 631-852-5760. More information is at suffolkcountyny.gov/health at the Beach Advisories and Closures link.

In Nassau the health department closed 13 beaches as a precaution.

The beaches are:

Centre Island Sound

Creek Club

Lattingtown Beach

Morgan Sound

North Hempstead Beach Park

Piping Rock Beach Club

Pryibil Beach

Ransom Beach

Roosevelt Beach

Sea Cliff Village Beach

Soundside Beach

Stehli Beach

Tappen Beach

In addition, Laurel Hollow Beach remains closed to bathing because of elevated bacterial levels.

To speak with a Health Department representative, call 516-227-9717 on weekdays from 9 a.m. from 4:45 p.m. For up-to-date recorded information on beach closings and openings, call 516-227-9700.