At 1213 AM EDT, Doppler radar was tracking strong thunderstorms along a line extending from near Mechanicsburg to Weigelstown to Parkville. Movement was northeast at 35 mph. HAZARD. Wind gusts of 50 to 55 mph and pea size hail. SOURCE. Radar indicated. IMPACT. Gusty winds could knock down tree limbs and blow around unsecured objects. Minor hail damage to vegetation is possible. Locations impacted include. Harrisburg, York, Lower Allen, Hanover, Hershey, Weigelstown, Elizabethtown, Columbia, Middletown, Mount Joy, New Cumberland, Parkville, Red Lion, Steelton, Spry, Hummelstown, Dallastown, Shiloh, East York, and Stonybrook-Wilshire.

* WHAT. South winds 10 to 20 kt with gusts up to 25 kt expected. * WHERE. Chesapeake Bay from Pooles Island MD to Smith Point VA, Tidal Potomac from Cobb Island MD to Smith Point VA, Chester River to Queenstown MD, Eastern Bay, Choptank River to Cambridge MD and the Little Choptank River, and Tangier Sound and the inland waters surrounding Bloodsworth Island. * WHEN. Until 6 PM EDT Monday. * IMPACTS. Conditions will be hazardous to small craft.

* WHAT. South winds 10 to 15 kt with gusts up to 25 kt expected. * WHERE. Tidal Potomac River from Key Bridge to Cobb Island MD, Chesapeake Bay north of Pooles Island MD, Patapsco River including Baltimore Harbor, and Patuxent River to Broomes Island MD. * WHEN. From 6 AM to 6 PM EDT Monday. * IMPACTS. Conditions will be hazardous to small craft.