WHUS71 KLWX 221223

MWWLWX



URGENT - MARINE WEATHER MESSAGE

National Weather Service Baltimore MD/Washington DC

823 AM EDT Sun Mar 22 2026



ANZ533-534-537-541>543-222030-

/O.CON.KLWX.MF.Y.0013.000000T0000Z-260322T1400Z/

/O.NEW.KLWX.SC.Y.0046.260323T0600Z-260324T1000Z/

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-

Choptank River to Cambridge MD and the Little Choptank River-

Patuxent River to Broomes Island MD-

Tangier Sound and the inland waters surrounding Bloodsworth

Island-

823 AM EDT Sun Mar 22 2026



...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 10 AM EDT THIS

MORNING...

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM MONDAY TO 6 AM EDT

TUESDAY...



* WHAT...For the Dense Fog Advisory, dense fog will reduce

  visibility to 1/2 NM or less. For the Small Craft Advisory,

  north to northwest winds of 10 to 20 kt with gusts up to 30 kt 

  expected.



* WHERE...Chesapeake Bay from North Beach MD to Smith Point VA, 

  Tidal Potomac from Cobb Island MD to Smith Point VA, Choptank 

  River to Cambridge MD and the Little Choptank River, Patuxent 

  River to Broomes Island MD, and Tangier Sound and the inland 

  waters surrounding Bloodsworth Island.



* WHEN...For the Dense Fog Advisory, until 10 AM EDT this 

  morning. For the Small Craft Advisory, from 2 AM Monday to 6 

  AM EDT Tuesday.



* IMPACTS...Conditions will be hazardous to small craft. Low 

  visibility will make navigation difficult.



PRECAUTIONARY/PREPAREDNESS ACTIONS...



Inexperienced mariners, especially those operating smaller

vessels, should avoid navigating in hazardous conditions.



If you must navigate, proceed with caution. Use proper fog

signals. Make sure all running lights are on. Remember to use

your radar and compass.



&&



$$



ANZ535-536-222030-

/O.CON.KLWX.SC.Y.0045.260322T1800Z-260322T2200Z/

/O.NEW.KLWX.SC.Y.0046.260323T0600Z-260324T1000Z/

Tidal Potomac from Key Bridge to Indian Head MD-

Tidal Potomac from Indian Head to Cobb Island MD-

823 AM EDT Sun Mar 22 2026



...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 2 PM THIS

AFTERNOON TO 6 PM EDT THIS EVENING...

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM MONDAY TO 6 AM EDT

TUESDAY...



* WHAT...For the first Small Craft Advisory, southwest winds 10 to

  15 kt with gusts up to 25 kt expected. For the second Small

  Craft Advisory, north to northwest winds of 10 to 15 kt with 

  gusts up to 25 kt expected.



* WHERE...Tidal Potomac River from Key Bridge to Cobb Island MD.



* WHEN...For the first Small Craft Advisory, from 2 PM this 

  afternoon to 6 PM EDT this evening. For the second Small Craft 

  Advisory, from 2 AM Monday to 6 AM EDT Tuesday.



* IMPACTS...Conditions will be hazardous to small craft.



PRECAUTIONARY/PREPAREDNESS ACTIONS...



Inexperienced mariners, especially those operating smaller

vessels, should avoid navigating in hazardous conditions.



&&



$$



ANZ530>532-538>540-222030-

/O.NEW.KLWX.SC.Y.0046.260323T0600Z-260324T1000Z/

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-

Patapsco River including Baltimore Harbor-

Chester River to Queenstown MD-Eastern Bay-

823 AM EDT Sun Mar 22 2026



...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM MONDAY TO 6 AM EDT

TUESDAY...



* WHAT...North to northwest winds of 10 to 20 kt with gusts up to

  25 kt expected.



* WHERE...Chesapeake Bay north of North Beach MD, Patapsco River 

  including Baltimore Harbor, Chester River to Queenstown MD, 

  and Eastern Bay.



* WHEN...From 2 AM Monday to 6 AM EDT Tuesday.



* IMPACTS...Conditions will be hazardous to small craft.



PRECAUTIONARY/PREPAREDNESS ACTIONS...



Inexperienced mariners, especially those operating smaller

vessels, should avoid navigating in hazardous conditions.



&&



$$