463  
WHUS71 KLWX 201036  
MWWLWX  
 
URGENT - MARINE WEATHER MESSAGE  
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC  
536 AM EST THU FEB 20 2025  
 
ANZ530>534-537-539>541-543-201845-  
/O.CON.KLWX.SC.Y.0034.000000T0000Z-250220T1800Z/  
/O.CON.KLWX.GL.W.0008.250220T1800Z-250221T1500Z/  
CHESAPEAKE BAY NORTH OF POOLES ISLAND MD-  
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT MD-  
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH MD-  
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT MD-  
CHESAPEAKE BAY FROM DRUM POINT MD TO SMITH POINT VA-  
TIDAL POTOMAC FROM COBB ISLAND MD TO SMITH POINT VA-  
CHESTER RIVER TO QUEENSTOWN MD-EASTERN BAY-  
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-  
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH  
ISLAND-  
536 AM EST THU FEB 20 2025  
 
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST THIS  
AFTERNOON...  
...GALE WARNING REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO  
10 AM EST FRIDAY...  
 
* WHAT...FOR THE SMALL CRAFT ADVISORY, NORTH WINDS 10 TO 20 KT  
WITH GUSTS UP TO 25 KT. FOR THE GALE WARNING, NORTHWEST WINDS  
15 TO 25 KT WITH GUSTS UP TO 40 KT AND WAVES 2 TO 4 FT  
EXPECTED.  
 
* WHERE...CHESAPEAKE BAY MAIN CHANNEL NORTH OF SMITH POINT VA,  
TIDAL POTOMAC FROM COBB ISLAND MD TO SMITH POINT VA, CHESTER  
RIVER TO QUEENSTOWN MD, EASTERN BAY, CHOPTANK RIVER TO  
CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER, AND TANGIER SOUND  
AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND.  
 
* WHEN...FOR THE SMALL CRAFT ADVISORY, UNTIL 1 PM EST THIS  
AFTERNOON. FOR THE GALE WARNING, FROM 1 PM THIS AFTERNOON TO  
10 AM EST FRIDAY.  
 
* IMPACTS...STRONG WINDS WILL CAUSE HAZARDOUS WAVES WHICH COULD  
CAPSIZE OR DAMAGE VESSELS.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
MARINERS SHOULD ALTER PLANS TO AVOID THESE HAZARDOUS CONDITIONS.  
REMAIN IN PORT, SEEK SAFE HARBOR, ALTER COURSE, AND/OR SECURE THE  
VESSEL FOR HAZARDOUS CONDITIONS.  
 

 
 

 
 
ANZ535-536-538-542-201845-  
/O.CON.KLWX.SC.Y.0034.250220T1200Z-250220T1800Z/  
/O.CON.KLWX.GL.W.0008.250220T1800Z-250221T0600Z/  
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD MD-  
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND MD-  
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-  
PATUXENT RIVER TO BROOMES ISLAND MD-  
536 AM EST THU FEB 20 2025  
 
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 1 PM EST THIS  
AFTERNOON...  
...GALE WARNING REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO  
1 AM EST FRIDAY...  
 
* WHAT...FOR THE SMALL CRAFT ADVISORY, NORTH WINDS 10 TO 15 KT  
WITH GUSTS UP TO 20 KT EXPECTED. FOR THE GALE WARNING,  
NORTHWEST WINDS 15 TO 20 KT WITH GUSTS UP TO 35 KT EXPECTED.  
 
* WHERE...TIDAL POTOMAC RIVER FROM KEY BRIDGE TO COBB ISLAND MD,  
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR, AND PATUXENT RIVER  
TO BROOMES ISLAND MD.  
 
* WHEN...FOR THE SMALL CRAFT ADVISORY, UNTIL 1 PM EST THIS  
AFTERNOON. FOR THE GALE WARNING, FROM 1 PM THIS AFTERNOON TO 1  
AM EST FRIDAY.  
 
* IMPACTS...STRONG WINDS WILL CAUSE HAZARDOUS WAVES WHICH COULD  
CAPSIZE OR DAMAGE VESSELS.  
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...  
 
MARINERS SHOULD ALTER PLANS TO AVOID THESE HAZARDOUS CONDITIONS.  
REMAIN IN PORT, SEEK SAFE HARBOR, ALTER COURSE, AND/OR SECURE THE  
VESSEL FOR HAZARDOUS CONDITIONS.  
 

 
 

 
 
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