Both Nassau and Suffolk counties are under a state of emergency on Long Island.

Up to four inches of rain across is forecast for parts of Long Island, according to the National Weather Service.

Thunderstorms are forecast to bring heavy rains that may cause flash flooding on Long Island a day after strong storms ...

Today's storm comes on the heels of a large system over the weekend that knocked out power to thousands across the island.

A cold front making its way across Long Island could bring scattered thunderstorms, coastal flooding and rip currents to South Shore beaches on Sunday. The National Weather Servic ...