* WHAT. Flash flooding caused by excessive rainfall continues to be possible. * WHERE. Portions of central and northern Maryland, including the following areas, in central Maryland, Anne Arundel. In northern Maryland, Southeast Harford and Southern Baltimore. * WHEN. Through Saturday morning. * IMPACTS. Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS. - A couple rounds of heavy rainfall are likely this evening, and again late tonight into Saturday morning. Rainfall amounts will average around 1 to 3 inches with localized amounts around 3 to 4 inches possible. - Please visit www.weather.gov/safety/flood for flood safety and preparedness information

* WHAT. Flash flooding caused by excessive rainfall continues to be possible. * WHERE. A portion of southern Maryland, including the following areas, Calvert and St. Marys. * WHEN. Until midnight EDT tonight. * IMPACTS. Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. Low-water crossings may be flooded. * ADDITIONAL DETAILS. - Showers are expected with possible thunderstorms through this evening. Rainfall amounts will average around 1 to 3 inches with localized amounts around 3 to 5 inches possible. - Please visit www.weather.gov/safety/flood for flood safety and preparedness information

* WHAT. Flash flooding caused by excessive rainfall continues to be possible. * WHERE. Portions of central, northeast, and northern Maryland, including the following areas, in central Maryland, Anne Arundel. In northeast Maryland, Cecil. In northern Maryland, Southeast Harford and Southern Baltimore. * WHEN. Until 10 AM EDT Saturday. * IMPACTS. Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. Flooding may occur in poor drainage and urban areas. * ADDITIONAL DETAILS. - Additional rounds of heavy rainfall are possible through Saturday morning. Rainfall amounts will average around 1 to 3 inches with localized amounts around 3 to 4 inches possible. - Please visit www.weather.gov/safety/flood for flood safety and preparedness information

GUSTS TO AROUND 20 KTS THROUGH THE EVENING. Showers and thunderstorms are bringing sporadic gusts to around 20 kts over the waters this evening. Inexperienced mariners, especially those operating smaller vessels, should exercise caution if navigating the waters during this time.