441
WHUS41 KLWX 201818
CFWLWX
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
218 PM EDT WED AUG 20 2025
MDZ014-210230-
/O.NEW.KLWX.CF.Y.0032.250821T0500Z-250821T1200Z/
ANNE ARUNDEL-
218 PM EDT WED AUG 20 2025
...COASTAL FLOOD ADVISORY IN EFFECT FROM 1 AM TO 8 AM EDT
THURSDAY...
* WHAT...UP TO ONE AND A HALF FEET OF INUNDATION ABOVE GROUND
LEVEL EXPECTED IN LOW LYING AREAS DUE TO TIDAL FLOODING.
* WHERE...SHORELINE IN ANNE ARUNDEL COUNTY.
* WHEN...FROM 1 AM TO 8 AM EDT THURSDAY, ESPECIALLY AROUND THE
TIME OF HIGH TIDE.
* IMPACTS...AT 3.0 FEET, COMPROMISE STREET BEGINS TO FLOOD IN
ANNAPOLIS. FLOODING OF MUCH OF THE CITY DOCK PARKING LOT IS
OCCURRING.
* ADDITIONAL DETAILS...TIDES ONE TO ONE AND A HALF FEET ABOVE
NORMAL. THE NEXT HIGH TIDE AT ANNAPOLIS U.S. NAVAL ACADEMY IS AT
3:23 PM AND 4:46 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.
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 PM 2.4 1.0 1.2 1.0 NONE
21/04 AM 3.0 1.6 1.2 1.0 MINOR
21/03 PM 2.0 0.6 0.8 1.0 NONE
22/05 AM 3.0 1.6 1.3 0.5 MINOR
22/05 PM 3.2 1.8 1.8 0.5 MINOR
23/06 AM 3.7 2.3 2.0 0.5 MODERATE
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