295  
WHUS41 KLWX 291813  
CFWLWX  
 
COASTAL HAZARD MESSAGE  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
213 PM EDT MON MAY 29 2017  
 
DCZ001-300215-  
/O.EXP.KLWX.CF.Y.0038.000000T0000Z-170529T1800Z/  
/O.NEW.KLWX.CF.Y.0039.170530T0300Z-170530T0600Z/  
DISTRICT OF COLUMBIA-  
213 PM EDT MON MAY 29 2017  
 
...COASTAL FLOOD ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO  
2 AM EDT TUESDAY...  
 
THE NATIONAL WEATHER SERVICE IN BALTIMORE MD/WASHINGTON DC HAS  
ISSUED A COASTAL FLOOD ADVISORY, WHICH IS IN EFFECT FROM 11 PM  
THIS EVENING TO 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.  
 

 
 
VAZ054-291915-  
/O.EXP.KLWX.CF.Y.0038.000000T0000Z-170529T1800Z/  
ARLINGTON/FALLS CHURCH/ALEXANDRIA-  
213 PM EDT MON MAY 29 2017  
   
..COASTAL FLOOD ADVISORY HAS EXPIRED
 
 
WATER LEVELS HAVE DROPPED BELOW FLOOD STAGE THIS AFTERNOON.  
 

 
 
MDZ017-300215-  
/O.EXT.KLWX.CF.Y.0037.000000T0000Z-170531T0400Z/  
ST. MARYS-  
213 PM EDT MON MAY 29 2017  
 
...COASTAL FLOOD ADVISORY NOW 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 TONIGHT THROUGH TUESDAY  
EVENING. THE NEXT HIGH TIDES AT POINT LOOKOUT WILL BE 5:23 PM  
THIS AFTERNOON, 5:43 AM TUESDAY MORNING, AND 6:23 PM TUESDAY  
EVENING. THE NEXT HIGH TIDES AT PINEY POINT WILL BE 6:23 THIS  
EVENING, 6:35 AM TUESDAY MORNING, AND 7:22 PM TUESDAY EVENING.  
THE NEXT HIGH TIDES AT COLTONS POINT WILL BE 6:59 PM THIS  
EVENING, 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  
-------- --------- --------- --------- ------- --------  
29/06 PM 3.1 1.5 1.5 0.5 MINOR  
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  
 

 
 

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab VA Page
The Nexlab MD Page
The Nexlab WV Page Main Text Page