318  
WHUS41 KLWX 241949  
CFWLWX  
 
COASTAL HAZARD MESSAGE  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
349 PM EDT SUN SEP 24 2023  
 
MDZ011-242100-  
/O.EXP.KLWX.CF.Y.0081.000000T0000Z-230924T2000Z/  
SOUTHERN BALTIMORE-  
349 PM EDT SUN SEP 24 2023  
 
...COASTAL FLOOD ADVISORY WILL EXPIRE AT 4 PM EDT THIS  
AFTERNOON...  
 
HIGH TIDE HAS PASSED.  
 

 
 
MDZ017-250400-  
/O.CON.KLWX.CF.W.0009.000000T0000Z-230925T0700Z/  
ST. MARYS-  
349 PM EDT SUN SEP 24 2023  
 
...COASTAL FLOOD WARNING REMAINS IN EFFECT UNTIL 3 AM EDT  
MONDAY...  
 
* WHAT...UP TO ONE FOOT OF INUNDATION ABOVE GROUND LEVEL IN LOW  
LYING AREAS DUE TO TIDAL FLOODING.  
 
* WHERE...SHORELINE IN ST. MARYS COUNTY.  
 
* WHEN...UNTIL 3 AM EDT MONDAY, 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 TWO TO TWO AND A HALF FEET ABOVE  
NORMAL. THE NEXT HIGH TIDE AT PINEY POINT IS AT 10:33 PM. THE  
NEXT HIGH TIDE AT COLTONS POINT IS AT 11:09 PM. THE NEXT HIGH  
TIDE AT POINT LOOKOUT IS AT 9:52 PM.  
 
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.  
 
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  
-------- --------- --------- --------- ------- --------  
24/10 PM 3.5 1.9 1.9 1.0 MODERATE  
25/10 AM 2.7 1.1 1.4 1.0 NONE  
25/10 PM 2.7 1.1 1.2 1.0 NONE  
26/12 PM 2.5 0.9 1.0 1.0 NONE  
27/01 AM 3.0 1.4 1.3 1.0 MINOR  
27/01 PM 3.2 1.6 1.6 1.0 MINOR  
 

 
 

 
 
MDZ014-250400-  
/O.CON.KLWX.CF.W.0008.000000T0000Z-230925T1000Z/  
ANNE ARUNDEL-  
349 PM EDT SUN SEP 24 2023  
 
...COASTAL FLOOD WARNING REMAINS IN EFFECT UNTIL 6 AM EDT  
MONDAY...  
 
* WHAT...UP TO ONE FOOT OF INUNDATION ABOVE GROUND LEVEL IN LOW  
LYING AREAS DUE TO TIDAL FLOODING.  
 
* WHERE...SHORELINE IN ANNE ARUNDEL COUNTY.  
 
* WHEN...UNTIL 6 AM EDT MONDAY, 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 TWO TO TWO AND A HALF FEET ABOVE  
NORMAL. THE NEXT HIGH TIDE AT ANNAPOLIS U.S. NAVAL ACADEMY IS AT  
2:15 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 6.0 FT  
MHHW CATEGORIES - MINOR 1.2 FT, MODERATE 1.9 FT, MAJOR 4.6 FT  
 
TOTAL TOTAL DEPARTURE  
DAY/TIME TIDE TIDE FROM NORM WAVES FLOOD  
FT MLLW FT MHHW FT FT IMPACT  
-------- --------- --------- --------- ------- --------  
25/01 AM 3.3 1.9 1.7 0.5 MODERATE  
25/01 PM 2.2 0.8 1.2 0.5 NONE  
26/03 AM 2.3 0.9 0.6 1.0 NONE  
26/03 PM 1.6 0.2 0.4 1.0 NONE  
27/03 AM 2.4 1.0 0.8 1.0 NONE  
 

 
 

 
 
MDZ018-250400-  
/O.CON.KLWX.CF.Y.0081.000000T0000Z-230925T0700Z/  
CALVERT-  
349 PM EDT SUN SEP 24 2023  
 
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 3 AM EDT  
MONDAY...  
 
* WHAT...UP TO ONE HALF FOOT OF INUNDATION ABOVE GROUND LEVEL IN  
LOW LYING AREAS DUE TO TIDAL FLOODING.  
 
* WHERE...SHORELINE IN CALVERT COUNTY.  
 
* WHEN...UNTIL 3 AM EDT MONDAY, ESPECIALLY AROUND THE TIME OF  
HIGH TIDE.  
 
* IMPACTS...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 SOLOMONS ISLAND IS AT 10:46 PM.  
THE NEXT HIGH TIDE AT CHESAPEAKE BEACH IS AT 12:33 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.  
 
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  
-------- --------- --------- --------- ------- --------  
25/12 AM 3.3 1.9 1.6 0.5 MINOR  
25/12 PM 2.3 0.9 1.2 0.5 NONE  
26/02 AM 2.4 1.0 0.7 0.5 NONE  
26/01 PM 1.8 0.4 0.6 1.0 NONE  
27/03 AM 2.6 1.2 0.9 1.0 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  
-------- --------- --------- --------- ------- --------  
24/09 PM 3.1 1.6 1.6 1.0 MINOR  
25/10 AM 2.6 1.1 1.2 1.0 NONE  
25/11 PM 2.6 1.1 0.9 1.0 NONE  
26/12 PM 2.4 0.9 0.8 1.0 NONE  
27/01 AM 2.8 1.3 1.0 1.0 NONE  
27/01 PM 3.1 1.6 1.4 1.0 MINOR  
 

 
 

 
 
MDZ016-VAZ057-250400-  
/O.CON.KLWX.CF.Y.0082.000000T0000Z-230925T0700Z/  
CHARLES-KING GEORGE-  
349 PM EDT SUN SEP 24 2023  
 
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 3 AM EDT  
MONDAY...  
 
* WHAT...UP TO ONE FOOT OF INUNDATION ABOVE GROUND LEVEL IN LOW  
LYING AREAS DUE TO TIDAL FLOODING.  
 
* WHERE...SHORELINE IN CHARLES AND KING GEORGE COUNTIES.  
 
* WHEN...UNTIL 3 AM EDT MONDAY, 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 TWO TO TWO AND A HALF FEET ABOVE  
NORMAL. THE NEXT HIGH TIDE AT DAHLGREN IS AT 11:16 PM. THE NEXT  
HIGH TIDE AT GOOSE BAY IS AT 12:19 AM. THE NEXT HIGH TIDE AT  
INDIAN HEAD IS AT 4:13 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  
-------- --------- --------- --------- ------- --------  
24/11 PM 3.5 1.6 1.5 0.5 MINOR  
25/11 AM 3.0 1.1 1.2 0.5 NONE  
26/12 AM 3.0 1.1 1.0 0.5 NONE  
26/01 PM 3.1 1.2 1.1 0.5 NONE  
27/02 AM 3.5 1.6 1.4 0.5 MINOR  
27/01 PM 3.7 1.8 1.6 0.5 MINOR  
 

 
 

 
 
DCZ001-VAZ054-250400-  
/O.CON.KLWX.CF.Y.0081.000000T0000Z-230925T1000Z/  
DISTRICT OF COLUMBIA-ARLINGTON/FALLS CHURCH/ALEXANDRIA-  
349 PM EDT SUN SEP 24 2023  
 
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 6 AM EDT  
MONDAY...  
 
* WHAT...UP TO ONE FOOT OF INUNDATION ABOVE GROUND LEVEL IN LOW  
LYING AREAS DUE TO TIDAL FLOODING.  
 
* WHERE...SHORELINE IN THE DISTRICT OF COLUMBIA, ARLINGTON  
COUNTY, AND THE CITY OF ALEXANDRIA.  
 
* WHEN...UNTIL 6 AM EDT MONDAY, ESPECIALLY AROUND THE TIME OF  
HIGH TIDE.  
 
* IMPACTS...SHORELINE INUNDATION IS EXPECTED ALONG PORTIONS OF  
THE SEAWALL ADJACENT TO OHIO DRIVE AND THE HAINS POINT LOOP ROAD  
AND NEAR THE TIDAL BASIN. WATER IS EXPECTED TO APPROACH THE  
CURB NEAR THE INTERSECTION OF KING STREET AND STRAND STREET IN  
ALEXANDRIA.  
 
* ADDITIONAL DETAILS...TIDES TWO TO TWO AND A HALF FEET ABOVE  
NORMAL. THE NEXT HIGH TIDE AT WASHINGTON CHANNEL IS AT 4:27 AM.  
THE NEXT HIGH TIDE AT ALEXANDRIA IS AT 4:45 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.  
 

 
 

 
 
MDZ013-VAZ053-055-527-242200-  
/O.CON.KLWX.CF.Y.0081.000000T0000Z-230924T2200Z/  
PRINCE GEORGES-FAIRFAX-STAFFORD-  
CENTRAL AND SOUTHEAST PRINCE WILLIAM/MANASSAS/MANASSAS PARK-  
349 PM EDT SUN SEP 24 2023  
 
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 6 PM EDT THIS  
EVENING...  
 
* WHAT...UP TO ONE HALF FOOT OF INUNDATION ABOVE GROUND LEVEL IN  
LOW LYING AREAS DUE TO TIDAL FLOODING.  
 
* WHERE...SHORELINE OF PRINCE GEORGES COUNTY MD, AND FAIRFAX,  
STAFFORD, AND SOUTHEAST PRINCE WILLIAM COUNTIES IN VA.  
 
* WHEN...UNTIL 6 PM EDT THIS EVENING, ESPECIALLY AROUND THE TIME  
OF HIGH TIDE.  
 
* IMPACTS...FLOODING OF LOTS, PARKS, AND ROADS WITH ONLY  
ISOLATED ROAD CLOSURES EXPECTED.  
 
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.  
 

 
 

 
 
MDZ508-242200-  
/O.CON.KLWX.CF.Y.0082.000000T0000Z-230924T2200Z/  
SOUTHEAST HARFORD-  
349 PM EDT SUN SEP 24 2023  
 
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 6 PM EDT THIS  
EVENING...  
 
* WHAT...UP TO ONE HALF FOOT OF INUNDATION ABOVE GROUND LEVEL IN  
LOW LYING AREAS DUE TO TIDAL FLOODING.  
 
* WHERE...SHORELINE IN SOUTHEAST HARFORD COUNTY.  
 
* WHEN...UNTIL 6 PM EDT THIS EVENING, ESPECIALLY AROUND THE TIME  
OF HIGH TIDE.  
 
* IMPACTS...AT 4.0 FEET, WATER BEGINS TO GO OVER THE BULKHEAD AT  
THE HAVRE DE GRACE YACHT BASIN IN MULTIPLE LOCATIONS.  
 
* ADDITIONAL DETAILS...TIDES TWO AND A HALF TO THREE FEET ABOVE  
NORMAL. THE NEXT HIGH TIDE AT HAVRE DE GRACE IS AT 6:08 PM.  
 
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.  
 
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  
-------- --------- --------- --------- ------- --------  
24/05 PM 4.3 1.9 2.7 1.0 MINOR  
25/06 AM 3.9 1.5 1.2 1.0 NONE  
25/07 PM 2.9 0.5 1.0 2.0 NONE  
26/07 AM 3.6 1.2 1.0 1.0 NONE  
26/08 PM 3.1 0.7 1.0 1.0 NONE  
27/08 AM 3.7 1.3 1.1 1.0 NONE  
 

 
 

 
 
MDZ008-250200-  
/O.CON.KLWX.CF.Y.0082.230924T2000Z-230925T0200Z/  
CECIL-  
349 PM EDT SUN SEP 24 2023  
 
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 10 PM EDT THIS  
EVENING...  
 
* WHAT...UP TO ONE HALF FOOT OF INUNDATION ABOVE GROUND LEVEL  
EXPECTED IN LOW LYING AREAS DUE TO TIDAL FLOODING.  
 
* WHERE...SHORELINE IN CECIL COUNTY.  
 
* WHEN...UNTIL 10 PM EDT THIS EVENING, ESPECIALLY AROUND THE  
TIME OF HIGH TIDE.  
 
* IMPACTS...AT 5.5 FEET, MINOR SHORELINE FLOODING BEGINS NEAR  
CHESAPEAKE CITY.  
 
* ADDITIONAL DETAILS...TIDES TWO AND A HALF TO THREE FEET ABOVE  
NORMAL. THE NEXT HIGH TIDE AT PORT DEPOSIT IS AT 5:51 PM. THE  
NEXT HIGH TIDE AT CHESAPEAKE CITY IS AT 6:43 PM. THE NEXT HIGH  
TIDE AT CHARLESTOWN IS AT 6:19 PM.  
 
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.  
 

 
 

 
 
DHOF  
 
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