163
WHUS71 KLWX 180714
MWWLWX
URGENT - MARINE WEATHER MESSAGE
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
214 AM EST THU DEC 18 2025
ANZ530>532-538>540-181515-
/O.UPG.KLWX.GL.A.0021.251219T0900Z-251220T0300Z/
/O.NEW.KLWX.GL.W.0030.251218T2300Z-251220T0600Z/
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-
214 AM EST THU DEC 18 2025
...GALE WARNING IN EFFECT FROM 6 PM THIS EVENING TO 1 AM EST
SATURDAY...
* WHAT...SOUTHWEST WINDS 15 TO 20 KT WITH GUSTS UP TO 40 KT IN THE
MORNING, TURNING OUT OF THE WEST-NORTHWEST BY LATE MORNING IN TO
THE AFTERNOON AROUND 25 TO 35 KT WITH GUSTS UP TO 45 KT. WAVES
2 TO 4 FT EXPECTED.
* WHERE...CHESAPEAKE BAY NORTH OF NORTH BEACH MD, PATAPSCO RIVER
INCLUDING BALTIMORE HARBOR, CHESTER RIVER TO QUEENSTOWN MD,
AND EASTERN BAY.
* WHEN...FROM 6 PM THIS EVENING TO 1 AM EST SATURDAY.
* IMPACTS...STRONG AND RAPIDLY SHIFTING WINDS WILL CAUSE
HAZARDOUS WAVES WHICH COULD CAPSIZE OR DAMAGE VESSELS.
* ADDITIONAL DETAILS...STRONG SOUTHWEST WINDS ACCOMPANYING A
SQUALL LINE WILL BRING BRIEF GALE-FORCE WINDS EARLY FRIDAY
MORNING. THIS WILL BE FOLLOWED BY A BRIEF DROP IN WINDS IN THE
MID-MORNING HOURS BEFORE WINDS JUMP BACK UP TO GALE-FORCE, BUT
THIS TIME OUT OF THE WEST-NORTHWEST BY THE AFTERNOON.
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.
ANZ533-534-536-537-541>543-181515-
/O.UPG.KLWX.GL.A.0021.251219T0900Z-251219T1500Z/
/O.NEW.KLWX.GL.W.0030.251218T2300Z-251220T0600Z/
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT MD-
CHESAPEAKE BAY FROM DRUM POINT MD TO SMITH POINT VA-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND MD-
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-
214 AM EST THU DEC 18 2025
...GALE WARNING IN EFFECT FROM 6 PM THIS EVENING TO 1 AM EST
SATURDAY...
* WHAT...SOUTHWEST WINDS 15 TO 20 KT WITH GUSTS UP TO 40 KT IN THE
MORNING, TURNING OUT OF THE WEST-NORTHWEST BY LATE MORNING IN TO
THE AFTERNOON AROUND 20 TO 30 KT WITH GUSTS UP TO 40 KT. WAVES
2 TO 4 FT EXPECTED.
* WHERE...TIDAL POTOMAC RIVER FROM INDIAN HEAD MD TO SMITH POINT
VA, CHESAPEAKE BAY FROM NORTH BEACH 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...FROM 6 PM THIS EVENING TO 1 AM EST SATURDAY.
* IMPACTS...STRONG AND RAPIDLY SHIFTING WINDS WILL CAUSE
HAZARDOUS WAVES WHICH COULD CAPSIZE OR DAMAGE VESSELS.
* ADDITIONAL DETAILS...STRONG SOUTHWEST WINDS ACCOMPANYING A
SQUALL LINE WILL BRING BRIEF GALE-FORCE WINDS EARLY FRIDAY
MORNING. THIS WILL BE FOLLOWED BY A BRIEF DROP IN WINDS IN THE
MID-MORNING HOURS BEFORE WINDS JUMP BACK UP TO GALE-FORCE, BUT
THIS TIME OUT OF THE WEST-NORTHWEST BY THE AFTERNOON.
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.
ANZ535-181515-
/O.UPG.KLWX.GL.A.0021.251219T0900Z-251220T0300Z/
/O.NEW.KLWX.GL.W.0030.251218T2300Z-251220T0600Z/
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD MD-
214 AM EST THU DEC 18 2025
...GALE WARNING IN EFFECT FROM 6 PM THIS EVENING TO 1 AM EST
SATURDAY...
* WHAT...SOUTHWEST WINDS 15 TO 20 KT WITH GUSTS UP TO 40 KT IN THE
MORNING, TURNING OUT OF THE WEST-NORTHWEST BY LATE MORNING IN TO
THE AFTERNOON AROUND 20 TO 30 KT WITH GUSTS UP TO 40 KT.
* WHERE...TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD MD.
* WHEN...FROM 6 PM THIS EVENING TO 1 AM EST SATURDAY.
* IMPACTS...STRONG AND RAPIDLY SHIFTING WINDS WILL CAUSE
HAZARDOUS WAVES WHICH COULD CAPSIZE OR DAMAGE VESSELS.
* ADDITIONAL DETAILS...STRONG SOUTHWEST WINDS ACCOMPANYING A
SQUALL LINE WILL BRING BRIEF GALE-FORCE WINDS EARLY FRIDAY
MORNING. THIS WILL BE FOLLOWED BY A BRIEF DROP IN WINDS IN THE
MID-MORNING HOURS BEFORE WINDS JUMP BACK UP TO GALE-FORCE, BUT
THIS TIME OUT OF THE WEST-NORTHWEST BY THE AFTERNOON.
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.
CJL
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