Note: The Coastal Flood Watch has been upgraded for the DC region. The most recent watch issuance before the upgrade is below.
A Coastal Flood Watch remains in effect from 12 am to 8 am Friday, September 5, 2025 including the following jurisdictions.
MARYLAND: Anne Arundel.
Excerpted from the National Weather Service:
…COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 7 AM EDT THIS MORNING…
…COASTAL FLOOD WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH FRIDAY MORNING…
WHAT…For the Coastal Flood Advisory, up to one half foot of inundation above ground level in low lying areas due to tidal flooding. For the Coastal Flood Watch, up to one foot of inundation above ground level possible in low lying areas due to tidal flooding.
WHERE…Shoreline in Anne Arundel County.
WHEN…For the Coastal Flood Advisory, ongoing until 7 AM EDT this morning. For the Coastal Flood Watch, from late tonight through Friday morning, 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 affected high tides at Annapolis U.S. Naval Academy are 3:29 AM this morning and 4:04 AM Friday morning.
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.
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
——– ——— ——— ——— ——- ——–
04/03 AM 2.8 1.4 1.1 1.0 Minor
04/02 PM 2.4 1.0 1.2 1.0 None
05/04 AM 3.3 1.9 1.6 1.0 Moderate
05/03 PM 2.3 0.9 1.0 1.0 None
06/05 AM 3.0 1.6 1.2 1.0 Minor
06/05 PM 2.2 0.8 0.8 1.0 None