* WHAT. Up to one half foot of inundation above ground level expected in low lying areas due to tidal flooding. * WHERE. Shoreline in Anne Arundel County. * WHEN. From 11 PM this evening to 4 AM EDT Sunday, especially around the time of high tide. * IMPACTS. At 2.6 feet, water may begin to pond in the parking lot at Annapolis City Dock, and surround the Alex Haley Memorial. * ADDITIONAL DETAILS. Tides one to one and a half feet above normal. The next high tide at Annapolis U.S. Naval Academy is at 1:15 AM.

* WHAT. South winds 10 to 20 kt with gusts up to 25 kt. * WHERE. Chesapeake Bay north of Drum Point MD, Chester River to Queenstown MD, Eastern Bay, and Choptank River to Cambridge MD and the Little Choptank River. * WHEN. Until 6 AM EDT Sunday. * IMPACTS. Conditions will be hazardous to small craft.

* WHAT. South winds around 10 kt with gusts up to 20 kt. * WHERE. Tidal Potomac from Key Bridge to Indian Head MD. * WHEN. Until 9 PM EDT this evening. * IMPACTS. Conditions will be hazardous to small craft.

THE NATIONAL WEATHER SERVICE HAS ISSUED SEVERE THUNDERSTORM WATCH 483 IN EFFECT UNTIL 10 PM EDT THIS EVENING FOR THE FOLLOWING AREAS IN MARYLAND THIS WATCH INCLUDES 3 COUNTIES IN NORTH CENTRAL MARYLAND WASHINGTON IN WESTERN MARYLAND ALLEGANY GARRETT IN VIRGINIA THIS WATCH INCLUDES 5 COUNTIES IN NORTHWEST VIRGINIA CITY OF WINCHESTER CLARKE FREDERICK SHENANDOAH WARREN IN WEST VIRGINIA THIS WATCH INCLUDES 8 COUNTIES IN EASTERN WEST VIRGINIA GRANT HAMPSHIRE HARDY MINERAL PENDLETON IN THE PANHANDLE OF WEST VIRGINIA BERKELEY JEFFERSON MORGAN THIS INCLUDES THE CITIES OF BERRYVILLE, CHARLES TOWN, CUMBERLAND, FORT ASHBY, FRANKLIN, FRONT ROYAL, FROSTBURG, GRANTSVILLE, HAGERSTOWN, KEYSER, MARTINSBURG, MOOREFIELD, MOUNTAIN LAKE PARK, OAKLAND, PAW PAW, PETERSBURG, ROMNEY, SHEPHERDSTOWN, STRASBURG, WINCHESTER, WINCHESTER, AND WOODSTOCK.