* WHAT. Southwest winds 10 to 15 kt with gusts up to 20 kt expected. * WHERE. Chesapeake Bay north of Sandy Point MD, Tidal Potomac from Indian Head to Cobb Island MD, Patapsco River including Baltimore Harbor, and Chester River to Queenstown MD. * WHEN. From 11 PM Monday to 6 AM EDT Tuesday. * IMPACTS. Conditions will be hazardous to small craft.

* WHAT. Southwest winds 10 to 15 kt with gusts up to 20 kt expected. * WHERE. Chesapeake Bay north of Sandy Point MD, Tidal Potomac from Indian Head to Cobb Island MD, Patapsco River including Baltimore Harbor, and Chester River to Queenstown MD. * WHEN. From 11 PM this evening to 6 AM EDT Tuesday. * IMPACTS. Conditions will be hazardous to small craft.

* WHAT. Flooding caused by excessive rainfall is possible. * WHERE. Portions of DC, including the following , District of Columbia, Maryland, including the following areas, Anne Arundel, Carroll, Central and Southeast Howard, Central and Southeast Montgomery, Frederick MD, Northern Baltimore, Northwest Howard, Northwest Montgomery, Prince Georges and Southern Baltimore, and northern Virginia, including the following areas, Arlington/Falls Church/Alexandria, Eastern Loudoun and Fairfax. * WHEN. Until 11 PM EDT this evening. * IMPACTS. Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS. - Thunderstorms are expected to develop in the next couple of hours across parts of the Baltimore and Washington metro areas. Storms are expected to be slow movers and be capable of producing intense rainfall rates of 1 to 2 inches per hour, which may result in flash flooding of small streams, creeks, urban and poor drainage areas. - 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 DC, including the following , District of Columbia, Maryland, including the following areas, Anne Arundel, Carroll, Central and Southeast Howard, Central and Southeast Montgomery, Frederick MD, Northern Baltimore, Northwest Howard, Northwest Montgomery, Prince Georges and Southern Baltimore, and northern Virginia, including the following areas, Arlington/Falls Church/Alexandria, Eastern Loudoun and Fairfax. * WHEN. Until 11 PM EDT this evening. * IMPACTS. Excessive runoff may result in flooding of rivers, creeks, streams, and other low-lying and flood-prone locations. * ADDITIONAL DETAILS. - Thunderstorms are expected to develop in the next couple of hours across parts of the Baltimore and Washington metro areas. Storms are expected to be slow movers and be capable of producing intense rainfall rates of 1 to 2 inches per hour, which may result in flash flooding of small streams, creeks, urban and poor drainage areas. - Please visit www.weather.gov/safety/flood for flood safety and preparedness information

* WHAT. Southwest winds 5 to 10 kt expected. * WHERE. Chesapeake Bay north of Sandy Point MD, Tidal Potomac from Indian Head to Cobb Island MD, Patapsco River including Baltimore Harbor, and Chester River to Queenstown MD. * WHEN. From 11 PM this evening to 6 AM EDT Tuesday. * IMPACTS. Conditions will be hazardous to small craft.