* WHAT. Northwest winds 15 to 20 kt with gusts up to 25 kt expected. * WHERE. Tidal Potomac River from Key Bridge to Smith Point VA, and Chesapeake Bay and adjoining estuaries north of Smith Point VA. * WHEN. From 6 PM this evening to 6 PM EDT Tuesday. * IMPACTS. Conditions will be hazardous to small craft.

* WHAT. Flooding caused by excessive rainfall is expected. * WHERE. Portions of central and northern Maryland, including the following counties, in central Maryland, Anne Arundel and Howard. In northern Maryland, Baltimore and Baltimore City. * WHEN. Until 515 AM EDT Monday. * IMPACTS. Flooding of rivers, creeks, streams, and other low-lying and flood-prone locations is occurring. It will take several hours for all the water from these storms to work through local drainage systems. * ADDITIONAL DETAILS. - At 1111 PM EDT, Doppler radar indicated heavy rain due to thunderstorms. Flooding is already occurring in the warned area. Between 2 and 4 inches of rain have fallen. - Some locations that will experience flooding include. Baltimore. Columbia. Pikesville. Elkridge. Historic Ellicott City. Glen Burnie. Ellicott City. Towson. Catonsville. Woodlawn. Milford Mill. Lochearn. Arbutus. Ferndale. Brooklyn Park. Pumphrey. Ilchester. Linthicum. Lansdowne. - The Patapsco River at Elkridge may exceed minor flood stage shortly. - Please visit www.weather.gov/safety/flood for flood safety and preparedness information.