578
WHUS41 KLWX 182240
CFWLWX
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
640 PM EDT SAT OCT 18 2025
MDZ014-190645-
/O.CON.KLWX.CF.W.0008.251019T1800Z-251020T0000Z/
/O.CON.KLWX.CF.Y.0058.000000T0000Z-251019T1800Z/
/O.CON.KLWX.CF.Y.0059.251020T0000Z-251020T1200Z/
ANNE ARUNDEL-
640 PM EDT SAT OCT 18 2025
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 2 PM EDT
SUNDAY...
...COASTAL FLOOD WARNING REMAINS IN EFFECT FROM 2 PM TO 8 PM EDT
SUNDAY...
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT FROM 8 PM SUNDAY TO
8 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...FOR THE FIRST COASTAL FLOOD ADVISORY, UNTIL 2 PM EDT
SUNDAY, ESPECIALLY AROUND THE TIME OF HIGH TIDE. FOR THE COASTAL
FLOOD WARNING, FROM 2 PM TO 8 PM EDT SUNDAY. FOR THE SECOND
COASTAL FLOOD ADVISORY, FROM 8 PM SUNDAY TO 8 AM EDT MONDAY,
ESPECIALLY AROUND THE TIME OF HIGH TIDE.
* IMPACTS...AT 3.5 FEET, WATER REACHES THE FLOOR OF THE MARITIME
MUSEUM IN ANNAPOLIS, BEGINS TO COVER BOWYER ROAD ON THE NAVAL
ACADEMY CAMPUS, AND NUMEROUS BUSINESSES ON DOCK STREET ARE
FLOODED, ALONG WITH THE CITY DOCK PARKING LOT. BAYSIDE BEACH
BEGINS TO FLOOD AROUND HARBOR RD AND LAKE DR.
* ADDITIONAL DETAILS...TIDES TWO TO TWO AND A HALF FEET ABOVE
NORMAL. THE NEXT HIGH TIDES AT ANNAPOLIS U.S. NAVAL ACADEMY ARE
4:25 AM AND 5:02 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.
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
-------- --------- --------- --------- ------- --------
19/04 AM 3.2 1.8 1.8 1.0 MINOR
19/06 PM 3.5 2.1 2.1 2.0 MODERATE
20/04 AM 3.3 1.9 2.0 1.0 MODERATE
20/04 PM 2.3 0.9 0.9 0.5 NONE
21/05 AM 1.9 0.5 0.6 0.5 NONE
MDZ508-190645-
/O.EXB.KLWX.CF.Y.0058.251018T2300Z-251020T0600Z/
SOUTHEAST HARFORD-
640 PM EDT SAT OCT 18 2025
..COASTAL FLOOD ADVISORY IN EFFECT UNTIL 2 AM EDT MONDAY
* WHAT...ONE TO TWO FEET OF INUNDATION ABOVE GROUND LEVEL
EXPECTED IN LOW LYING AREAS DUE TO TIDAL FLOODING.
* WHERE...SHORELINE IN SOUTHEAST HARFORD COUNTY.
* WHEN...UNTIL 2 AM EDT MONDAY, ESPECIALLY AROUND THE TIME OF
HIGH TIDE.
* IMPACTS...AT 4.5 FEET, PORTIONS OF THE HAVRE DE GRACE YACHT
BASIN ARE FLOODED, ALONG WITH HUTCHINS PARK.
* ADDITIONAL DETAILS...TIDES TWO AND A HALF TO THREE FEET ABOVE
NORMAL. THE NEXT HIGH TIDES AT HAVRE DE GRACE ARE 8:53 PM AND
9:12 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 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
-------- --------- --------- --------- ------- --------
18/09 PM 4.0 1.6 1.5 1.0 MINOR
19/09 AM 4.2 1.8 1.9 1.0 MINOR
19/10 PM 5.1 2.7 2.5 2.0 MINOR
20/10 AM 4.8 2.4 2.5 2.0 MINOR
20/09 PM 3.9 1.5 1.6 1.0 NONE
21/10 AM 3.0 0.6 0.8 1.0 NONE
MDZ018-190645-
/O.CON.KLWX.CF.Y.0058.000000T0000Z-251020T0900Z/
CALVERT-
640 PM EDT SAT OCT 18 2025
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 5 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 5 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 ONE AND A HALF TO TWO FEET ABOVE
NORMAL. THE NEXT HIGH TIDES AT CHESAPEAKE BEACH ARE 3:03 AM AND
3:37 PM. THE NEXT HIGH TIDES AT SOLOMONS ISLAND ARE 1:21 AM AND
1:44 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 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
-------- --------- --------- --------- ------- --------
19/05 AM 3.0 1.6 1.5 1.0 MINOR
19/04 PM 3.0 1.6 1.4 1.0 MINOR
20/02 AM 2.9 1.5 1.6 1.0 NONE
20/04 PM 1.8 0.4 0.2 0.5 NONE
21/05 AM 1.7 0.3 0.3 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
-------- --------- --------- --------- ------- --------
19/01 AM 3.2 1.7 1.6 1.0 MINOR
19/01 PM 3.3 1.8 1.7 1.0 MINOR
20/01 AM 3.3 1.8 1.8 1.0 MINOR
20/02 PM 2.5 1.0 0.9 1.0 NONE
21/02 AM 2.1 0.6 0.6 1.0 NONE
21/03 PM 2.3 0.8 0.7 1.0 NONE
MDZ016-VAZ057-190645-
/O.CON.KLWX.CF.Y.0058.251019T0500Z-251020T0800Z/
CHARLES-KING GEORGE-
640 PM EDT SAT OCT 18 2025
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT FROM 1 AM SUNDAY TO
4 AM EDT MONDAY...
* WHAT...UP TO ONE HALF FOOT OF INUNDATION ABOVE GROUND LEVEL
EXPECTED IN LOW LYING AREAS DUE TO TIDAL FLOODING.
* WHERE...SHORELINE IN CHARLES AND KING GEORGE COUNTIES.
* WHEN...FROM 1 AM SUNDAY TO 4 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 ONE AND A HALF TO TWO FEET ABOVE
NORMAL. THE NEXT HIGH TIDES AT GOOSE BAY ARE 3:12 AM AND 3:36
PM. THE NEXT HIGH TIDES AT DAHLGREN ARE 2:06 AM AND 2:28 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.
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
-------- --------- --------- --------- ------- --------
19/02 AM 3.5 1.6 1.6 1.0 MINOR
19/03 PM 3.7 1.8 1.7 1.0 MINOR
20/02 AM 3.5 1.6 1.6 1.0 MINOR
20/03 PM 2.6 0.7 0.5 0.5 NONE
21/03 AM 2.5 0.6 0.6 0.5 NONE
21/04 PM 2.8 0.9 0.7 1.0 NONE
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page