Still More Fireworks

   The Fourth of July may be officially over, but the fireworks celebrations continue. Montauk's fireworks, originally scheduled for Wednesday night, were postponed until tonight because of last night's threat of thunderstorms. The show will be launched at 9 p.m. from Umbrella Beach. It can be seen from any of Montauk's ocean beaches.

     Grucci fireworks will be visible over Shinnecock Bay tomorrow in Southampton as part of the Fresh Air Fund's yearly American Picnic, which begins at 7 p.m. on Meadow Lane.

     On Saturday at the Devon Yacht Club in Amagansett, a private show will take place at 9:15 p.m. Nonmembers can catch it from Fresh Pond Beach, Big or Little Albert's Beaches or from the water.

     Shelter Island's fireworks will go off on July 14, a Saturday, from a barge at Crescent Beach. The Shelter Island Chamber of Commerce has asked for donations.

     Rounding out the July pyrotechnics, the Clamshell Foundation's annual Great Bonac Fireworks Show will explode over Three Mile Harbor on the 21st at 9:15 p.m. The foundation, which is based in East Hampton, has requested donations toward its programs on the East End.

     As for Main Beach in East Hampton Village, the East Hampton Fire Department sponsors a display there on the Saturday of Labor Day weekend each year.