A few northwest wind gusts to near 20 knots are possible through this afternoon the middle Chesapeake Bay and its eastern adjoining tributaries, as well as the Upper to Middle Tidal Potomac River. Inexperienced mariners, especially those operating smaller vessels, should exercise extra caution if navigating the waters during this time.

* WHAT. Northwest winds 10 to 15 kt with gusts up to 20 kt expected. * WHERE. Tidal Potomac River from Key Bridge to Cobb Island MD, Chesapeake Bay north of North Beach MD, Patapsco River including Baltimore Harbor, Chester River to Queenstown MD, and Eastern Bay. * WHEN. From 6 AM to 6 PM EST Tuesday. * IMPACTS. Conditions will be hazardous to small craft.

* WHAT. Northwest winds 10 to 20 kt with gusts gusts up to 25 kt expected. * WHERE. Chesapeake Bay from North Beach MD to Smith Point VA, Tidal Potomac from Cobb Island MD to Smith Point VA, Choptank River to Cambridge MD and the Little Choptank River, Patuxent River to Broomes Island MD, and Tangier Sound and the inland waters surrounding Bloodsworth Island. * WHEN. Until 6 PM EST Tuesday. * IMPACTS. Conditions will be hazardous to small craft.