633
WHUS41 KLWX 200802
CFWLWX
COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
402 AM EDT MON OCT 20 2025
MDZ018-200915-
/O.CAN.KLWX.CF.Y.0058.000000T0000Z-251020T0900Z/
CALVERT-
402 AM EDT MON OCT 20 2025
..COASTAL FLOOD ADVISORY IS CANCELLED
WATER LEVELS HAVE RECEDED.
MDZ016-VAZ057-200915-
/O.EXP.KLWX.CF.Y.0058.000000T0000Z-251020T0800Z/
CHARLES-KING GEORGE-
402 AM EDT MON OCT 20 2025
...COASTAL FLOOD ADVISORY WILL EXPIRE AT 4 AM EDT EARLY THIS
MORNING...
WATER LEVELS HAVE RECEDED.
MDZ014-201200-
/O.CON.KLWX.CF.Y.0059.000000T0000Z-251020T1200Z/
ANNE ARUNDEL-
402 AM EDT MON OCT 20 2025
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 8 AM EDT THIS
MORNING...
* 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 8 AM EDT THIS MORNING, 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 AND A HALF TO TWO FEET ABOVE
NORMAL. THE NEXT HIGH TIDE AT ANNAPOLIS U.S. NAVAL ACADEMY IS AT
4:59 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 AM 3.0 1.6 1.8 0.5 MINOR
20/05 PM 2.2 0.8 0.7 0.5 NONE
21/05 AM 2.0 0.6 0.7 0.5 NONE
21/06 PM 2.5 1.1 0.9 1.0 NONE
22/05 AM 2.0 0.6 0.8 0.5 NONE
22/07 PM 2.0 0.6 0.4 0.5 NONE
MDZ508-201600-
/O.CON.KLWX.CF.Y.0058.000000T0000Z-251020T1600Z/
SOUTHEAST HARFORD-
402 AM EDT MON OCT 20 2025
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL NOON EDT
TODAY...
* WHAT...UP TO ONE FOOT OF INUNDATION ABOVE GROUND LEVEL IN LOW
LYING AREAS DUE TO TIDAL FLOODING.
* WHERE...SHORELINE IN SOUTHEAST HARFORD COUNTY.
* WHEN...UNTIL NOON EDT TODAY, 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 ONE AND A HALF TO TWO FEET ABOVE
NORMAL. THE NEXT HIGH TIDE AT HAVRE DE GRACE IS AT 9:57 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
-------- --------- --------- --------- ------- --------
20/10 AM 4.1 1.7 1.8 1.0 MINOR
20/10 PM 3.4 1.0 0.8 1.0 NONE
21/10 AM 3.0 0.6 0.8 1.0 NONE
21/10 PM 3.7 1.3 1.2 1.0 NONE
22/11 AM 3.2 0.8 1.0 1.0 NONE
22/11 PM 3.3 0.9 0.8 1.0 NONE
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