Coastal Flood Advisory
Areas affected:
District of Columbia, DC; Calvert, MD; St. Marys, MD

DCZ001-300600-
/O.CON.KLWX.CF.Y.0039.170530T0300Z-170530T0600Z/
DISTRICT OF COLUMBIA-
1002 PM EDT MON MAY 29 2017

…COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 2 AM EDT
TUESDAY…

* LOCATIONS…WASHINGTON DC WATERFRONT.

* TIDAL DEPARTURE…FROM 1 TO 1.25 FEET ABOVE NORMAL.

* TIMING…AROUND THE TIME OF HIGH TIDE TONIGHT. THE NEXT HIGH
TIDE AT WASHINGTON CHANNEL WILL BE AT 12:17 AM.

* IMPACTS…SHORELINE INUNDATION IS EXPECTED ALONG PORTIONS OF
THE SEAWALL ADJACENT TO OHIO DRIVE AND THE HAINS POINT LOOP
ROAD. MINOR SHORELINE INUNDATION IS POSSIBLE ELSEWHERE.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A COASTAL FLOOD ADVISORY INDICATES THAT ONSHORE WINDS AND TIDES
WILL COMBINE TO GENERATE FLOODING OF LOW AREAS ALONG THE SHORE.

&&

&&

FORECAST TIDES ARE REFERENCED TO MEAN LOWER LOW WATER
(MLLW) AND MEAN HIGHER HIGH WATER (MHHW) UNLESS
OTHERWISE NOTED. TIME OF HIGH TOTAL TIDE IS
APPROXIMATE TO NEAREST HOUR. TOTAL TIDE COMBINES THE
NORMAL TIDE AND DEPARTURE FROM NORMAL. FLOOD IMPACT
IS BASED ON THE TOTAL TIDE AND WAVES WHERE APPLICABLE.

$$

Coastal Flood Advisory
Areas affected:
District of Columbia, DC; Calvert, MD; St. Marys, MD

MDZ018-301015-
/O.EXB.KLWX.CF.Y.0037.170530T0700Z-170530T1400Z/
CALVERT-
1002 PM EDT MON MAY 29 2017

…COASTAL FLOOD ADVISORY IN EFFECT FROM 3 AM TO 10 AM EDT
TUESDAY…

THE NATIONAL WEATHER SERVICE IN BALTIMORE MD/WASHINGTON DC HAS
ISSUED A COASTAL FLOOD ADVISORY, WHICH IS IN EFFECT FROM 3 AM TO
10 AM EDT TUESDAY.

* LOCATIONS…SENSITIVE LOCATIONS ALONG THE CALVERT COUNTY
COASTLINE, INCLUDING SOLOMONS ISLAND AND NORTH BEACH

* TIDAL DEPARTURE…AROUND A FOOT ABOVE NORMAL.

* TIMING…WITHIN A COUPLE OF HOURS OF HIGH TIDE TUESDAY MORNING.
THE AFFECTED HIGH TIDES WILL BE…6:38 AM IN SOLOMONS, AND 8:24
AM IN CHESAPEAKE BEACH.

* IMPACTS…WATER IS EXPECTED TO REACH BACKYARDS NEAR 9TH STREET
IN NORTH BEACH, AND CHARLES STREET AND WILLIAMS STREET IN
SOLOMONS ISLAND. MINOR SHORELINE INUNDATION IS POSSIBLE
ELSEWHERE.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A COASTAL FLOOD ADVISORY INDICATES THAT ONSHORE WINDS AND TIDES
WILL COMBINE TO GENERATE FLOODING OF LOW AREAS ALONG THE SHORE.

&&

&&

FORECAST TIDES ARE REFERENCED TO MEAN LOWER LOW WATER
(MLLW) AND MEAN HIGHER HIGH WATER (MHHW) UNLESS
OTHERWISE NOTED. TIME OF HIGH TOTAL TIDE IS
APPROXIMATE TO NEAREST HOUR. TOTAL TIDE COMBINES THE
NORMAL TIDE AND DEPARTURE FROM NORMAL. FLOOD IMPACT
IS BASED ON THE TOTAL TIDE AND WAVES WHERE APPLICABLE.

SOLOMONS ISLAND MD
MLLW CATEGORIES – MINOR 2.75 FT, MODERATE 4.0 FT, MAJOR 5.0 FT
MHHW CATEGORIES – MINOR 1.25 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
——– ——— ——— ——— ——- ——–
30/06 AM 2.9 1.4 1.3 1.0 MINOR
30/07 PM 2.7 1.2 1.3 1.0 NONE
31/08 AM 2.8 1.3 1.2 1.0 MINOR
00/08 PM 2.5 1.0 1.1 1.0 NONE
01/08 AM 2.3 0.8 0.8 1.0 NONE

NORTH BEACH MD
MLLW CATEGORIES – MINOR 2.7 FT, MODERATE 4.0 FT, MAJOR 5.0 FT
MHHW CATEGORIES – MINOR 1.3 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
——– ——— ——— ——— ——- ——–
30/08 AM 2.7 1.3 1.1 0.5 MINOR
30/08 PM 2.3 0.9 1.1 0.5 NONE
31/09 AM 2.5 1.1 1.0 0.5 NONE
31/10 PM 2.2 0.8 0.9 0.5 NONE
01/10 AM 1.9 0.5 0.5 0.5 NONE

$$

Coastal Flood Advisory
Areas affected:
District of Columbia, DC; Calvert, MD; St. Marys, MD

MDZ017-301015-
/O.CON.KLWX.CF.Y.0037.000000T0000Z-170531T0400Z/
ST. MARYS-
1002 PM EDT MON MAY 29 2017

…COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT EDT
TUESDAY NIGHT…

* LOCATIONS…SENSITIVE COASTLINE ALONG THE POTOMAC RIVER IN ST.
MARY’S COUNTY, INCLUDING ST. GEORGE ISLAND.

* TIDAL DEPARTURE…AROUND A FOOT ABOVE NORMAL.

* TIMING…WITHIN A FEW HOURS OF HIGH TIDE TUESDAY MORNING THROUGH
TUESDAY EVENING. THE NEXT HIGH TIDES AT POINT LOOKOUT WILL BE
5:43 AM TUESDAY MORNING, AND 6:23 PM TUESDAY EVENING. THE NEXT
HIGH TIDES AT PINEY POINT WILL BE 6:35 AM TUESDAY MORNING, AND
7:22 PM TUESDAY EVENING. THE NEXT HIGH TIDES AT COLTONS POINT
WILL BE 7:11 AM TUESDAY MORNING, AND 7:58 PM TUESDAY EVENING.

* IMPACTS…WATER IS EXPECTED TO GO OVER A PORTION OF THE
BULKHEAD NEAR THE STRAITS POINT BRIDGE, AND ALSO COVER YARDS
IN THE ST GEORGES CREEK AND ST MARYS RIVER AREAS. MINOR
SHORELINE INUNDATION IS POSSIBLE ELSEWHERE.

PRECAUTIONARY/PREPAREDNESS ACTIONS…

A COASTAL FLOOD ADVISORY INDICATES THAT ONSHORE WINDS AND TIDES
WILL COMBINE TO GENERATE FLOODING OF LOW AREAS ALONG THE SHORE.

&&

&&

FORECAST TIDES ARE REFERENCED TO MEAN LOWER LOW WATER
(MLLW) AND MEAN HIGHER HIGH WATER (MHHW) UNLESS
OTHERWISE NOTED. TIME OF HIGH TOTAL TIDE IS
APPROXIMATE TO NEAREST HOUR. TOTAL TIDE COMBINES THE
NORMAL TIDE AND DEPARTURE FROM NORMAL. FLOOD IMPACT
IS BASED ON THE TOTAL TIDE AND WAVES WHERE APPLICABLE.

STRAITS POINT MD
MLLW CATEGORIES – MINOR 2.7 FT, MODERATE 3.5 FT, MAJOR 5.0 FT
MHHW CATEGORIES – MINOR 1.1 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
——– ——— ——— ——— ——- ——–
30/06 AM 3.3 1.7 1.6 1.0 MINOR
30/07 PM 3.3 1.7 1.7 1.0 MINOR
31/07 AM 3.2 1.6 1.6 0.5 MINOR
00/08 PM 3.1 1.5 1.5 0.5 MINOR
01/09 AM 2.7 1.1 1.1 0.5 MINOR

$$