481
WHUS41 KLWX 231810
CFWLWX
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
210 PM EDT SAT AUG 23 2025
MDZ014-240215-
/O.CON.KLWX.CF.W.0004.000000T0000Z-250824T1400Z/
ANNE ARUNDEL-
210 PM EDT SAT AUG 23 2025
...COASTAL FLOOD WARNING REMAINS IN EFFECT UNTIL 10 AM EDT
SUNDAY...
* WHAT...AROUND TWO FEET OF INUNDATION ABOVE GROUND LEVEL IN LOW
LYING AREAS DUE TO TIDAL FLOODING.
* WHERE...SHORELINE IN ANNE ARUNDEL COUNTY.
* WHEN...UNTIL 10 AM EDT SUNDAY, 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
6:14 PM AND 6:46 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
-------- --------- --------- --------- ------- --------
23/06 PM 3.1 1.7 1.7 1.0 MINOR
24/07 AM 3.4 2.0 1.8 1.0 MODERATE
24/06 PM 2.9 1.5 1.5 1.0 MINOR
25/07 AM 3.0 1.6 1.4 0.5 MINOR
25/07 PM 2.4 1.0 0.9 0.5 NONE
26/07 AM 2.2 0.8 0.7 0.5 NONE
MDZ011-018-508-240215-
/O.CON.KLWX.CF.Y.0033.000000T0000Z-250825T1000Z/
SOUTHERN BALTIMORE-CALVERT-SOUTHEAST HARFORD-
210 PM EDT SAT AUG 23 2025
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 6 AM EDT
MONDAY...
* WHAT...ONE AND A HALF OF TWO FEET OF INUNDATION ABOVE GROUND
LEVEL IN LOW LYING AREAS DUE TO TIDAL FLOODING.
* WHERE...SOUTHERN BALTIMORE, CALVERT AND SOUTHEAST HARFORD
COUNTIES.
* WHEN...UNTIL 6 AM EDT MONDAY, ESPECIALLY AROUND THE TIME OF
HIGH TIDE.
* IMPACTS...AT 3.5 FEET, FLOODING IS OCCURRING AT THE END OF
THAMES STREET IN BALTIMORE. WATER COVERS THE PROMENADE IN THE
INNER HARBOR IN MULTIPLE LOCATIONS. AT 3.0 FEET, WATER BEGINS
ENCROACHING UPON YARDS IN THE BOWLEYS QUARTERS AREA. AT 4.5
FEET, PORTIONS OF THE HAVRE DE GRACE YACHT BASIN ARE FLOODED,
ALONG WITH HUTCHINS PARK. AT 3.0 FEET, WATER IS EXPECTED TO
REACH BACKYARDS NEAR 9TH STREET IN NORTH BEACH, AND COULD
APPROACH 9TH STREET. AT 3.0 FEET, PARKING LOTS NEAR CHARLES
STREET IN SOLOMONS BEGIN TO FLOOD, WITH SEVERAL INCHES OF
WATER COVERING LOW-LYING PORTIONS OF CHARLES STREET AND
WILLIAMS STREET.
* ADDITIONAL DETAILS...TIDES TWO TO TWO AND A HALF FEET ABOVE
NORMAL. THE NEXT HIGH TIDE AT CHESAPEAKE BEACH IS AT 4:53 PM AND
5:24 AM. THE NEXT HIGH TIDE AT HAVRE DE GRACE IS AT 11:02 PM AND
11:10 AM. THE NEXT HIGH TIDE AT SOLOMONS ISLAND IS AT 3:04 PM
AND 3:36 AM. THE NEXT HIGH TIDE AT FORT MCHENRY BALTIMORE IS AT
7:40 PM AND 8:11 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
-------- --------- --------- --------- ------- --------
23/07 PM 3.3 1.6 1.7 0.5 NONE
24/08 AM 3.6 1.9 1.7 0.5 MINOR
24/08 PM 3.2 1.5 1.5 0.5 NONE
25/08 AM 3.0 1.3 1.3 0.5 NONE
25/09 PM 2.5 0.8 0.7 0.5 NONE
26/08 AM 2.2 0.5 0.6 0.5 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
-------- --------- --------- --------- ------- --------
23/08 PM 2.9 1.2 1.2 1.0 NONE
24/08 AM 3.1 1.4 1.2 1.0 MINOR
24/08 PM 2.7 1.0 1.0 1.0 NONE
25/08 AM 2.5 0.8 0.8 0.5 NONE
25/09 PM 2.2 0.5 0.4 1.0 NONE
26/10 AM 1.9 0.2 0.2 0.5 NONE
CHESAPEAKE BAY AT NORTH BEACH
MLLW CATEGORIES - MINOR 3.0 FT, MODERATE 4.0 FT, MAJOR 5.0 FT
MHHW CATEGORIES - MINOR 1.6 FT, MODERATE 2.6 FT, MAJOR 3.6 FT
TOTAL TOTAL DEPARTURE
DAY/TIME TIDE TIDE FROM NORM WAVES FLOOD
FT MLLW FT MHHW FT FT IMPACT
-------- --------- --------- --------- ------- --------
23/05 PM 2.9 1.5 1.4 1.0 NONE
24/06 AM 3.1 1.7 1.4 1.0 MINOR
24/07 PM 2.8 1.4 1.2 1.0 NONE
25/07 AM 2.8 1.4 1.1 0.5 NONE
25/07 PM 2.4 1.0 0.8 0.5 NONE
26/07 AM 2.1 0.7 0.5 0.5 NONE
PATUXENT RIVER AT SOLOMONS ISLAND
MLLW CATEGORIES - MINOR 3.0 FT, MODERATE 4.0 FT, MAJOR 5.0 FT
MHHW CATEGORIES - MINOR 1.5 FT, MODERATE 2.5 FT, MAJOR 3.5 FT
TOTAL TOTAL DEPARTURE
DAY/TIME TIDE TIDE FROM NORM WAVES FLOOD
FT MLLW FT MHHW FT FT IMPACT
-------- --------- --------- --------- ------- --------
23/02 PM 3.2 1.7 1.6 1.0 MINOR
24/04 AM 3.4 1.9 1.7 1.0 MINOR
24/03 PM 3.0 1.5 1.4 1.0 MINOR
25/04 AM 3.0 1.5 1.3 1.0 MINOR
25/04 PM 2.6 1.1 1.0 1.0 NONE
26/05 AM 2.5 1.0 0.8 1.0 NONE
CHESAPEAKE BAY AT HAVRE DE GRACE MD
MLLW CATEGORIES - MINOR 4.0 FT, MODERATE 5.5 FT, MAJOR 7.0 FT
MHHW CATEGORIES - MINOR 2.2 FT, MODERATE 3.7 FT, MAJOR 5.2 FT
TOTAL TOTAL DEPARTURE
DAY/TIME TIDE TIDE FROM NORM WAVES FLOOD
FT MLLW FT MHHW FT FT IMPACT
-------- --------- --------- --------- ------- --------
23/11 PM 4.2 1.8 1.6 1.0 MINOR
24/11 AM 4.5 2.1 2.0 1.0 MINOR
24/11 PM 4.0 1.6 1.5 1.0 MINOR
25/11 AM 3.8 1.4 1.6 1.0 NONE
26/12 AM 3.4 1.0 0.8 1.0 NONE
26/12 PM 3.1 0.7 0.8 1.0 NONE
MDZ016-VAZ057-240215-
/O.CON.KLWX.CF.Y.0033.000000T0000Z-250824T2300Z/
CHARLES-KING GEORGE-
210 PM EDT SAT AUG 23 2025
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 7 PM EDT
SUNDAY...
* WHAT...UP TO TWO FEET OF INUNDATION ABOVE GROUND LEVEL IN LOW
LYING AREAS DUE TO TIDAL FLOODING.
* WHERE...SHORELINE IN CHARLES AND KING GEORGE COUNTIES.
* WHEN...UNTIL 7 PM EDT SUNDAY, ESPECIALLY AROUND THE TIME OF
HIGH TIDE.
* IMPACTS...AT 3.5 FEET, WATER REACHES YARDS NEAR COBB ISLAND
AND DOCKS NEAR DAHLGREN.
* ADDITIONAL DETAILS...TIDES ONE AND A HALF TO TWO FEET ABOVE
NORMAL. THE NEXT HIGH TIDE AT GOOSE BAY IS AT 5:04 PM AND 5:19
AM. THE NEXT HIGH TIDE AT INDIAN HEAD IS AT 8:58 PM AND 9:13 AM.
THE NEXT HIGH TIDE AT DAHLGREN IS AT 3:58 PM AND 4:18 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.
UPPER MACHODOC CREEK AT DAHLGREN
MLLW CATEGORIES - MINOR 3.5 FT, MODERATE 5.0 FT, MAJOR 7.0 FT
MHHW CATEGORIES - MINOR 1.6 FT, MODERATE 3.1 FT, MAJOR 5.1 FT
TOTAL TOTAL DEPARTURE
DAY/TIME TIDE TIDE FROM NORM WAVES FLOOD
FT MLLW FT MHHW FT FT IMPACT
-------- --------- --------- --------- ------- --------
23/04 PM 3.8 1.9 1.7 1.0 MINOR
24/04 AM 3.8 1.9 1.6 0.5 MINOR
24/05 PM 3.6 1.7 1.5 1.0 MINOR
25/04 AM 3.4 1.5 1.4 0.5 NONE
25/05 PM 3.2 1.3 1.1 0.5 NONE
26/05 AM 2.9 1.0 0.9 0.5 NONE
VAZ054-240215-
/O.CON.KLWX.CF.Y.0033.000000T0000Z-250824T2300Z/
ARLINGTON/FALLS CHURCH/ALEXANDRIA-
210 PM EDT SAT AUG 23 2025
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 7 PM EDT
SUNDAY...
* WHAT...ONE AND A HALF TO TWO FEET OF INUNDATION ABOVE GROUND
LEVEL IN LOW LYING AREAS DUE TO TIDAL FLOODING.
* WHERE...SHORELINE IN THE CITY OF ALEXANDRIA AND ARLINGTON
COUNTY.
* WHEN...UNTIL 7 PM EDT SUNDAY, ESPECIALLY AROUND THE TIME OF
HIGH TIDE.
* IMPACTS...WATER IS EXPECTED TO APPROACH THE CURB NEAR THE
INTERSECTION OF KING STREET AND STRAND STREET IN ALEXANDRIA..
* ADDITIONAL DETAILS...TIDES ONE TO ONE AND A HALF FEET ABOVE
NORMAL. THE NEXT HIGH TIDE AT ALEXANDRIA IS AT 9:30 PM AND 9:45
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.
MDZ017-240215-
/O.CON.KLWX.CF.Y.0033.000000T0000Z-250825T0000Z/
ST. MARYS-
210 PM EDT SAT AUG 23 2025
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT
SUNDAY...
* WHAT...UP TO TWO FEET OF INUNDATION ABOVE GROUND LEVEL IN LOW
LYING AREAS DUE TO TIDAL FLOODING.
* WHERE...SHORELINE IN ST. MARYS COUNTY.
* WHEN...UNTIL 8 PM EDT SUNDAY, ESPECIALLY AROUND THE TIME OF
HIGH TIDE.
* IMPACTS...AT 3.5 FEET, WATER COVERS ROADS ON SAINT GEORGE
ISLAND, IS IN YARDS, AND IS APPROACHING STRUCTURES. TO THE
EAST, INUNDATION IS OCCURRING AT MULTIPLE MARINAS OFF ST.
MARY'S RIVER, SMITH CREEK, AND JUTLAND CREEK.
* ADDITIONAL DETAILS...TIDES ONE AND A HALF TO TWO FEET ABOVE
NORMAL. THE NEXT HIGH TIDE AT PINEY POINT IS AT 3:18 PM AND 3:33
AM. THE NEXT HIGH TIDE AT COLTONS POINT IS AT 3:54 PM AND 4:09
AM. THE NEXT HIGH TIDE AT POINT LOOKOUT IS AT 2:12 PM AND 2:43
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.
ST MARYS RIVER AT STRAITS POINT
MLLW CATEGORIES - MINOR 3.0 FT, MODERATE 3.5 FT, MAJOR 5.0 FT
MHHW CATEGORIES - MINOR 1.4 FT, MODERATE 1.9 FT, MAJOR 3.4 FT
TOTAL TOTAL DEPARTURE
DAY/TIME TIDE TIDE FROM NORM WAVES FLOOD
FT MLLW FT MHHW FT FT IMPACT
-------- --------- --------- --------- ------- --------
23/03 PM 3.6 2.0 2.0 1.0 MINOR
24/03 AM 3.5 1.9 1.9 1.0 MINOR
24/03 PM 3.3 1.7 1.8 1.0 NONE
25/03 AM 3.3 1.7 1.8 1.0 NONE
25/04 PM 3.2 1.6 1.7 1.0 NONE
26/04 AM 2.7 1.1 1.2 0.5 NONE
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