Coastal Flood Warning

Locations Affected

Herring Bay, MD ∙ Lake Shore, MD ∙ Odenton, MD ∙ Jessup, MD ∙ Carrollton Manor, MD ∙ Furnace Branch, MD ∙ Leitch, MD ∙ Arnold, MD ∙ Mayo, MD ∙ Cape Saint Claire, MD

Full Alert Message

URGENT - IMMEDIATE BROADCAST REQUESTED Coastal Hazard Message National Weather Service Baltimore MD/Washington DC 151 PM EDT Tue Aug 19 2025 ...COASTAL FLOOD WARNING IN EFFECT FROM 11 PM THIS EVENING TO 8 AM EDT WEDNESDAY... * WHAT...One to two feet 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 8 AM EDT Wednesday, especially around the time of high tide. * IMPACTS...At 3.5 feet, water reaches the floor of the Maritime Museum in Annapolis, begins to cover Bowyer Road on the Naval Academy campus, and numerous businesses on Dock Street are flooded, along with the City Dock parking lot. Bayside Beach begins to flood around Harbor Rd and Lake Dr. * ADDITIONAL DETAILS...Tides one and a half to two feet above normal. The next high tide at Annapolis U.S. Naval Academy is at 2:13 PM and 3:55 AM. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take the necessary actions to protect flood-prone property. If travel is required, do not drive around barricades or through water of unknown depth. && Time of high total tides are approximate to the nearest hour. Severn River at Annapolis MLLW Categories - Minor 2.6 ft, Moderate 3.3 ft, Major 5.0 ft MHHW Categories - Minor 1.2 ft, Moderate 1.9 ft, Major 3.6 ft Total Total Departure Day/Time Tide Tide from Norm Waves Flood ft MLLW ft MHHW ft ft Impact -------- --------- --------- --------- ------- -------- 19/03 PM 2.5 1.1 1.4 1.0 None 20/03 AM 3.6 2.2 1.8 1.0 Moderate 20/03 PM 2.7 1.3 1.5 1.0 Minor 21/04 AM 2.9 1.5 1.1 1.0 Minor 21/04 PM 1.8 0.4 0.5 1.0 None 22/06 AM 2.6 1.2 0.9 0.5 Minor

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