Coastal Flood Advisory

Full Alert Message

Coastal Hazard Message National Weather Service Baltimore MD/Washington DC 726 PM EDT Wed May 21 2025 ...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 5 AM EDT THURSDAY... * WHAT...Up to one half foot of inundation above ground level in low lying areas due to tidal flooding. * WHERE...Shoreline in Southern Baltimore County and the city of Baltimore. * WHEN...Until 5 AM EDT Thursday, especially around the time of high tide. * IMPACTS...At 3.0 feet, flooding is occurring at the end of Thames Street in Baltimore. Water also nearly covers the promenade at the dragon boat dock in the Inner Harbor. At 3.0 feet, water begins encroaching upon yards in the Bowleys Quarters area. * ADDITIONAL DETAILS...Tides one and a half to two feet above normal. The next high tide at Fort McHenry Baltimore is at 2:52 AM. PRECAUTIONARY/PREPAREDNESS ACTIONS... If travel is required, allow extra time as some roads may be closed. Do not drive around barricades or through water of unknown depth. Take the necessary actions to protect flood-prone property. && Time of high total tides are approximate to the nearest hour. NW Branch Patapsco River at Baltimore MD MLLW Categories - Minor 3.4 ft, Moderate 4.6 ft, Major 6.0 ft MHHW Categories - Minor 1.7 ft, Moderate 2.9 ft, Major 4.3 ft Total Total Departure Day/Time Tide Tide from Norm Waves Flood ft MLLW ft MHHW ft ft Impact -------- --------- --------- --------- ------- -------- 22/02 AM 3.2 1.5 1.7 0.5 None 22/03 PM 2.5 0.8 1.1 0.5 None 23/03 AM 2.4 0.7 0.7 0.5 None 23/04 PM 2.0 0.3 0.7 1.0 None 24/04 AM 2.1 0.4 0.2 0.5 None 24/04 PM 0.8 -0.9 -0.4 1.0 None Chesapeake Bay at Bowleys Quarters MLLW Categories - Minor 3.0 ft, Moderate 3.8 ft, Major 5.0 ft MHHW Categories - Minor 1.3 ft, Moderate 2.1 ft, Major 3.3 ft Total Total Departure Day/Time Tide Tide from Norm Waves Flood ft MLLW ft MHHW ft ft Impact -------- --------- --------- --------- ------- -------- 22/03 AM 3.0 1.3 1.4 1.0 Minor 22/03 PM 2.4 0.7 1.0 1.0 None 23/04 AM 2.5 0.8 0.7 1.0 None 23/04 PM 2.1 0.4 0.8 1.0 None 24/05 AM 2.1 0.4 0.1 1.0 None 24/04 PM 0.8 -0.9 -0.4 1.0 None