* WHAT. Dense fog will reduce visibility to 1 nm or less. * WHERE. Sandy Hook NJ to Montauk Point NY out 20 nm, and South Shore Bays from Jones Inlet through Shinnecock Bay. * WHEN. Until 10 AM EDT Monday. * IMPACTS. Low visibility will make navigation difficult.

* WHAT. Visibility one quarter mile or less in dense fog. * WHERE. In Connecticut, Southern Fairfield, Southern Middlesex, Southern New Haven, and Southern New London Counties. In New York, Northeast Suffolk, Northern Nassau, Northwest Suffolk, Southeast Suffolk, Southern Nassau, and Southwest Suffolk Counties. * WHEN. Until 9 AM EDT this morning. * IMPACTS. Low visibility could make driving conditions hazardous. * ADDITIONAL DETAILS. A portion of the advisory may need to be extended later into the morning if fog is slower to improve.

* WHAT. For the Dense Fog Advisory, dense fog will reduce visibility to 1/4 NM or less. For the Small Craft Advisory, south winds 15 to 20 kt with gusts up to 25 kt and seas 3 to 5 ft expected. * WHERE. Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm, Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 nm, Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 nm and Coastal waters from Great Egg Inlet to Cape May NJ out 20 nm. * WHEN. For the Dense Fog Advisory, until 8 AM EDT this morning. For the Small Craft Advisory, from 3 PM this afternoon to 1 AM EDT Tuesday. * IMPACTS. Conditions will be hazardous to small craft. Low visibility will make navigation difficult.

* WHAT. For the Dense Fog Advisory, dense fog will reduce visibility to 1/4 NM or less. For the Small Craft Advisory, south winds 15 to 20 kt with gusts up to 25 kt and seas 3 to 5 ft expected. * WHERE. Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm, Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 nm, Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 nm and Coastal waters from Great Egg Inlet to Cape May NJ out 20 nm. * WHEN. For the Dense Fog Advisory, until 8 AM EDT this morning. For the Small Craft Advisory, from 3 PM this afternoon to 1 AM EDT Tuesday. * IMPACTS. Conditions will be hazardous to small craft. Low visibility will make navigation difficult.

The areas affected include. Sandy Hook NJ to Fire Island Inlet NY out 20 NM. New York Harbor. At 556 AM EDT, Doppler radar indicated a strong thunderstorm, capable of producing winds to around 30 knots. This thunderstorm was located 12 nm southwest of South Amboy, moving northeast at 30 knots.

Areas of fog may reduce visibilities to a mile or less through 9 am. Patchy dense fog is also possible. Travelers should be prepared for quickly changing visibilities. Slow down and use your low beams in the fog. Visibilities are expected to improve after 9 am.

* WHAT. For the Dense Fog Advisory, dense fog will reduce visibility to 1 NM or less. For the Small Craft Advisory, south winds 15 to 20 kt with gusts up to 25 kt and seas 3 to 5 ft expected. * WHERE. Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm, Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 nm, Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 nm and Coastal waters from Great Egg Inlet to Cape May NJ out 20 nm. * WHEN. For the Dense Fog Advisory, until 10 AM EDT this morning. For the Small Craft Advisory, from 3 PM this afternoon to 1 AM EDT Tuesday. * IMPACTS. Conditions will be hazardous to small craft. Low visibility will make navigation difficult.

* WHAT. For the Dense Fog Advisory, dense fog will reduce visibility to 1 NM or less. For the Small Craft Advisory, south winds 15 to 20 kt with gusts up to 25 kt and seas 3 to 5 ft expected. * WHERE. Coastal waters from Sandy Hook to Manasquan Inlet NJ out 20 nm, Coastal waters from Manasquan Inlet to Little Egg Inlet NJ out 20 nm, Coastal waters from Little Egg Inlet to Great Egg Inlet NJ out 20 nm and Coastal waters from Great Egg Inlet to Cape May NJ out 20 nm. * WHEN. For the Dense Fog Advisory, until 10 AM EDT this morning. For the Small Craft Advisory, from 3 PM this afternoon to 1 AM EDT Tuesday. * IMPACTS. Conditions will be hazardous to small craft. Low visibility will make navigation difficult.

* WHAT. Visibility one quarter mile or less in dense fog. * WHERE. Southern Fairfield, Southern Middlesex, Southern New Haven, and Southern New London Counties. * WHEN. Until 9 AM EDT this morning. * IMPACTS. Low visibility could make driving conditions hazardous.

* WHAT. Dense fog will reduce visibility to 1 NM or less. * WHERE. New York Harbor, including Raritan Bay and Sandy Hook Bay, and South Shore Bays from Jones Inlet through Shinnecock Bay. * WHEN. Until 10 AM EDT this morning. * IMPACTS. Low visibility will make navigation difficult.

* WHAT. Dense fog will reduce visibility to 1 NM or less. * WHERE. Long Island Sound, and Peconic and Gardiners Bays. * WHEN. Until 10 AM EDT this morning. * IMPACTS. Low visibility will make navigation difficult. * ADDITIONAL DETAILS. The advisory may need to be extended into the afternoon.

* WHAT. For the Dense Fog Advisory, dense fog will reduce visibility to 1 NM or less. For the Small Craft Advisory, south winds 10 to 20 kt with gusts up to 25 kt and seas around 5 feet expected. * WHERE. Sandy Hook NJ to Fire Island Inlet NY out 20 nm. * WHEN. For the Dense Fog Advisory, until 10 AM EDT this morning. For the Small Craft Advisory, from 3 PM this afternoon to 6 AM EDT Tuesday. * IMPACTS. Conditions will be hazardous to small craft. Low visibility will make navigation difficult. * ADDITIONAL DETAILS. The dense fog advisory may need to be extended into the afternoon.

* WHAT. For the Dense Fog Advisory, dense fog will reduce visibility to 1 NM or less. For the Small Craft Advisory, south winds 10 to 20 kt with gusts up to 25 kt and seas around 5 feet expected. * WHERE. Sandy Hook NJ to Fire Island Inlet NY out 20 nm. * WHEN. For the Dense Fog Advisory, until 10 AM EDT this morning. For the Small Craft Advisory, from 3 PM this afternoon to 6 AM EDT Tuesday. * IMPACTS. Conditions will be hazardous to small craft. Low visibility will make navigation difficult. * ADDITIONAL DETAILS. The dense fog advisory may need to be extended into the afternoon.