Note: The Coastal Flood Warning has been canceled for the DC region. The most recent warning issuance before the cancellation is below.
A Coastal Flood Warning remains in effect Tuesday, August 19 to 8 am Wednesday, August 20, 2025 including the following jurisdictions.
MARYLAND: Anne Arundel.
Excerpted from the National Weather Service:
…COASTAL FLOOD WARNING REMAINS IN EFFECT UNTIL 8 AM EDT WEDNESDAY…
WHAT…Up to one foot of inundation above ground level expected in low lying areas due to tidal flooding.
WHERE…Shoreline in Anne Arundel County.
WHEN…Until 8 AM EDT Wednesday, especially around the time of high tide.
IMPACTS…At 3.2 feet, water begins to approach businesses on Dock Street in Annapolis. The City Dock parking lot is flooded. Compromise Street is flooded.
ADDITIONAL DETAILS…Tides one and a half to two feet above normal. The next high tide at Annapolis U.S. Naval Academy is at 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
——– ——— ——— ——— ——- ——–
20/03 AM 3.4 2.0 1.6 1.0 Moderate
20/02 PM 2.5 1.1 1.4 1.0 None
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
22/05 PM 2.8 1.4 1.4 0.5 Minor