A warm front accompanied by showers and a few thunderstorms will result in a brief period of wind gusts of 20 to 25 knots. Mariners should exercise extra caution if navigating the waters during this time.

* WHAT. Southwest winds 10 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. From 11 AM Thursday to 2 AM EDT Friday. * IMPACTS. Conditions will be hazardous to small craft.

* WHAT. From one to one and a half feet of inundation above ground level expected in low-lying areas near shorelines and tidal waterways. * WHERE. In Delaware, Kent, Inland Sussex and Delaware Beaches. In New Jersey, Cumberland, Atlantic, Cape May, Atlantic Coastal Cape May and Coastal Atlantic. * WHEN. From 7 PM this evening to 1 AM EDT Thursday. * IMPACTS. At this level, flooding begins on the most vulnerable roads in coastal and bayside communities, and along inland tidal waterways. Some partial or full road closures are possible.

* WHAT. Up to one foot of inundation above ground level expected in low-lying areas near shorelines and tidal waterways. * WHERE. In New Jersey, Mercer, Gloucester, Camden and Northwestern Burlington. In Pennsylvania, Delaware, Philadelphia and Lower Bucks. * WHEN. From midnight tonight to 5 AM EDT Thursday. * IMPACTS. At this level, flooding begins on the most vulnerable roads along tidal waterways. Some partial or full road closures are possible.

* WHAT. One and a half to two feet of inundation above ground level expected in low-lying areas near shorelines and tidal waterways. * WHERE. In Delaware, New Castle. In New Jersey, Salem. * WHEN. From 9 PM to 11 PM EDT this evening. * IMPACTS. Flooding of lots, parks, and roads with only isolated road closures expected.