408
WHUS71 KLWX 200921
MWWLWX

URGENT - MARINE WEATHER MESSAGE
National Weather Service Baltimore MD/Washington DC
521 AM EDT Wed Aug 20 2025

ANZ534-537-543-201730-
/O.NEW.KLWX.SC.Y.0117.250821T0000Z-250821T1000Z/
Chesapeake Bay from Drum Point MD to Smith Point VA-
Tidal Potomac from Cobb Island MD to Smith Point VA-
Tangier Sound and the inland waters surrounding Bloodsworth
Island-
521 AM EDT Wed Aug 20 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM THIS EVENING TO 6 AM
EDT THURSDAY...

* WHAT...Northeast winds 10 to 20 kt with gusts up to 25 kt
  expected.

* WHERE...Chesapeake Bay from Drum Point MD to Smith Point VA,
  Tidal Potomac from Cobb Island MD to Smith Point VA and
  Tangier Sound and the inland waters surrounding Bloodsworth
  Island.

* WHEN...From 8 PM this evening to 6 AM EDT Thursday.

* 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>533-538>542-201730-
/O.NEW.KLWX.SC.Y.0117.250821T0300Z-250821T1000Z/
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-
Patapsco River including Baltimore Harbor-
Chester River to Queenstown MD-Eastern Bay-
Choptank River to Cambridge MD and the Little Choptank River-
Patuxent River to Broomes Island MD-
521 AM EDT Wed Aug 20 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO 6 AM
EDT THURSDAY...

* WHAT...Northeast winds 10 to 15 kt with gusts up to 25 kt
  expected.

* WHERE...Chesapeake Bay and adjoining estuaries north of Drum
  Point MD.

* WHEN...From 11 PM this evening to 6 AM EDT Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$