282  
WHUS41 KLWX 180304  
CFWLWX  
 
COASTAL HAZARD MESSAGE  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
1104 PM EDT TUE SEP 17 2019  
 
DCZ001-180500-  
/O.NEW.KLWX.CF.Y.0083.190918T0304Z-190918T0500Z/  
DISTRICT OF COLUMBIA-  
1104 PM EDT TUE SEP 17 2019  
   
..COASTAL FLOOD ADVISORY IN EFFECT UNTIL 1 AM EDT WEDNESDAY
 
 
THE NATIONAL WEATHER SERVICE IN BALTIMORE MD/WASHINGTON HAS  
ISSUED A COASTAL FLOOD ADVISORY, WHICH IS IN EFFECT UNTIL 1 AM  
EDT WEDNESDAY.  
 
* LOCATIONS...SHORELINE IN THE DISTRICT OF COLUMBIA.  
 
* TIDAL DEPARTURE...AROUND ONE FOOT ABOVE NORMAL.  
 
* TIMING...AROUND THE TIME OF HIGH TIDE. HIGH TIDE AT WASHINGTON  
CHANNEL IS ONGOING.  
 
* 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 AND JEFFERSON MEMORIAL. MINOR  
SHORELINE INUNDATION UP TO ONE FOOT ABOVE GROUND 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.  
 

 
 

 
 
MDZ017-181100-  
/O.CON.KLWX.CF.Y.0082.190918T0700Z-190918T1100Z/  
ST. MARYS-  
1104 PM EDT TUE SEP 17 2019  
 
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT FROM 3 AM TO 7 AM EDT  
WEDNESDAY...  
 
* LOCATIONS...SHORELINE IN ST. MARYS COUNTY.  
 
* TIDAL DEPARTURE...ONE TO ONE AND A HALF FEET ABOVE NORMAL.  
 
* TIMING...AROUND THE TIME OF HIGH TIDE. HIGH TIDE AT POINT  
LOOKOUT IS AT 4:18 AM, AT COLTONS POINT AT 5:59 AM, AT PINEY  
POINT AT 5:23 AM.  
 
* 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 UP TO ONE FOOT ABOVE GROUND 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.  
 

 
 
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  
-------- --------- --------- --------- ------- --------  
18/05 AM 3.0 1.4 1.5 0-1 MINOR  
18/05 PM 3.3 1.7 1.7 1 MINOR  
19/06 AM 3.4 1.8 1.9 1 MINOR  
19/06 PM 3.6 2.0 1.9 0 MODERATE  
20/05 AM 3.1 1.5 1.8 0 MINOR  
20/06 PM 3.1 1.5 1.5 0 MINOR  
 

 
 

 
 
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