FZUS51 KLWX 211134
CWFLWX
Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
734 AM EDT Sat Jun 21 2025
Tidal Potomac River and Maryland portion of Chesapeake Bay.
Forecasts of wave heights do not include effects of wind direction
relative to tidal currents. Expect higher waves when winds are
blowing against the tidal flow. Waves flat where waters are iced over.
ANZ500-212000-
734 AM EDT Sat Jun 21 2025
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
A large area of high pressure will influence the area through at
least next Tuesday. A frontal boundary approaches from the north by
the middle of next week.
$$
ANZ535-212000-
Tidal Potomac from Key Bridge to Indian Head-
734 AM EDT Sat Jun 21 2025
.TODAY...SW winds around 5 kt. Waves 1 ft or less.
.TONIGHT...S winds 5 kt. Waves less than 1 ft.
.SUN...SW winds 5 kt. Waves less than 1 ft.
.SUN NIGHT...SW winds around 5 kt. Waves 1 ft.
.MON...NW winds around 5 kt. Waves 1 ft.
.MON NIGHT...W winds around 5 kt. Waves 1 ft or less.
.TUE...NW winds around 5 kt. Waves 1 ft.
.WED...NW winds around 5 kt. Waves 1 ft.
$$
ANZ536-212000-
Tidal Potomac from Indian Head to Cobb Island-
734 AM EDT Sat Jun 21 2025
.TODAY...S winds 5 kt. Waves less than 1 ft.
.TONIGHT...S winds 5 to 10 kt. Waves 1 ft.
.SUN...SW winds 5 to 10 kt. Waves 1 ft.
.SUN NIGHT...SW winds around 5 kt. Waves 1 ft.
.MON...NW winds around 5 kt. Waves 1 ft.
.MON NIGHT...W winds around 5 kt. Waves 1 ft or less.
.TUE...NW winds around 5 kt. Waves 1 ft.
.WED...NW winds around 5 kt. Waves 1 ft.
$$
ANZ537-212000-
Tidal Potomac from Cobb Island to Smith Point-
734 AM EDT Sat Jun 21 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EDT THIS EVENING THROUGH
LATE TONIGHT...
.TODAY...SW winds 5 kt...becoming SE late. Waves 1 ft or less.
.TONIGHT...S winds 10 to 15 kt...becoming SW late. Gusts up to
20 kt. Waves 1 ft.
.SUN...SW winds 5 to 10 kt. Waves 1 ft.
.SUN NIGHT...SW winds 5 to 10 kt. Waves 1 ft.
.MON...NW winds 5 kt. Waves less than 1 ft.
.MON NIGHT...SW winds around 5 kt. Waves flat.
.TUE...NW winds 5 kt. Waves less than 1 ft.
.WED...NW winds around 5 kt. Waves 1 ft or less.
$$
ANZ530-212000-
Chesapeake Bay north of Pooles Island-
734 AM EDT Sat Jun 21 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EDT THIS EVENING THROUGH
LATE TONIGHT...
.TODAY...SW winds 5 to 10 kt. Waves 1 ft or less.
.TONIGHT...SW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.SUN...SW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.SUN NIGHT...SW winds 5 to 10 kt. Waves 1 ft.
.MON...NW winds 5 kt. Waves less than 1 ft.
.MON NIGHT...W winds around 5 kt. Waves 1 ft.
.TUE...NW winds 5 kt. Waves less than 1 ft.
.WED...N winds around 5 kt. Waves 1 ft.
$$
ANZ531-212000-
Chesapeake Bay from Pooles Island to Sandy Point-
734 AM EDT Sat Jun 21 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EDT THIS EVENING THROUGH
LATE TONIGHT...
.TODAY...S winds 5 to 10 kt. Waves 1 ft or less.
.TONIGHT...S winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.SUN...SW winds 5 to 10 kt with gusts to 20 kt. Waves 1 to 2 ft.
.SUN NIGHT...SW winds 5 to 10 kt. Waves 1 ft.
.MON...NW winds 5 kt. Waves less than 1 ft.
.MON NIGHT...W winds 5 kt. Waves less than 1 ft.
.TUE...NW winds 5 kt. Waves less than 1 ft.
.WED...NE winds around 5 kt. Waves 1 ft or less.
$$
ANZ538-212000-
Patapsco River including Baltimore Harbor-
734 AM EDT Sat Jun 21 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EDT THIS EVENING THROUGH
LATE TONIGHT...
.TODAY...S winds around 5 kt...increasing to 10 kt late. Waves 1 ft
or less.
.TONIGHT...S winds 5 to 10 kt. Waves 1 ft.
.SUN...SW winds 5 to 10 kt. Waves 1 ft.
.SUN NIGHT...SW winds around 5 kt. Waves 1 ft or less.
.MON...NW winds around 5 kt. Waves flat.
.MON NIGHT...W winds around 5 kt. Waves flat.
.TUE...NW winds around 5 kt. Waves flat.
.WED...NE winds around 5 kt. Waves flat.
$$
ANZ539-212000-
Chester River to Queenstown MD-
734 AM EDT Sat Jun 21 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EDT THIS EVENING THROUGH
LATE TONIGHT...
.TODAY...SW winds 5 to 10 kt. Waves 1 ft or less.
.TONIGHT...S winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.SUN...SW winds 5 to 10 kt. Waves 1 ft.
.SUN NIGHT...SW winds 5 to 10 kt. Waves 1 ft.
.MON...NW winds 5 kt. Waves flat.
.MON NIGHT...W winds around 5 kt. Waves flat.
.TUE...NW winds around 5 kt. Waves 1 ft or less.
.WED...NE winds around 5 kt. Waves flat.
$$
ANZ532-212000-
Chesapeake Bay from Sandy Point to North Beach-
734 AM EDT Sat Jun 21 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EDT THIS EVENING THROUGH
LATE TONIGHT...
.TODAY...S winds 5 kt...increasing to 10 kt late. Waves 1 ft or
less.
.TONIGHT...S winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.SUN...SW winds 5 to 10 kt. Gusts up to 20 kt in the morning. Waves
1 to 2 ft.
.SUN NIGHT...SW winds 5 to 10 kt. Waves 1 ft.
.MON...W winds 5 kt. Waves less than 1 ft.
.MON NIGHT...SW winds 5 kt. Waves flat.
.TUE...NW winds 5 kt. Waves flat.
.WED...NE winds 5 kt. Waves flat.
$$
ANZ540-212000-
Eastern Bay-
734 AM EDT Sat Jun 21 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EDT THIS EVENING THROUGH
LATE TONIGHT...
.TODAY...SW winds 5 to 10 kt. Waves 1 ft or less.
.TONIGHT...S winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.SUN...SW winds 5 to 10 kt. Waves 1 ft.
.SUN NIGHT...SW winds 5 to 10 kt. Waves 1 ft.
.MON...NW winds 5 kt. Waves flat.
.MON NIGHT...SW winds around 5 kt. Waves flat.
.TUE...NW winds 5 kt. Waves flat.
.WED...N winds 5 kt. Waves flat.
$$
ANZ533-212000-
Chesapeake Bay from North Beach to Drum Point-
734 AM EDT Sat Jun 21 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EDT THIS EVENING THROUGH
LATE TONIGHT...
.TODAY...S winds 5 kt...increasing to 10 kt with gusts to 20 kt
late. Waves 1 ft.
.TONIGHT...S winds 10 to 15 kt...becoming SW late. Gusts up to
20 kt. Waves 2 ft.
.SUN...SW winds 5 to 10 kt. Gusts up to 20 kt in the morning. Waves
1 to 2 ft.
.SUN NIGHT...SW winds 5 to 10 kt. Waves 1 ft.
.MON...NW winds 5 kt. Waves less than 1 ft.
.MON NIGHT...SW winds 5 kt. Waves flat.
.TUE...NW winds 5 kt. Waves less than 1 ft.
.WED...N winds 5 kt. Waves less than 1 ft.
$$
ANZ541-212000-
Choptank River to Cambridge MD and the Little Choptank River-
734 AM EDT Sat Jun 21 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EDT THIS EVENING THROUGH
LATE TONIGHT...
.TODAY...SW winds 5 to 10 kt. Waves 1 ft or less.
.TONIGHT...S winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft.
.SUN...SW winds 5 to 10 kt. Gusts up to 20 kt in the morning. Waves
1 to 2 ft.
.SUN NIGHT...SW winds 5 to 10 kt. Waves 1 ft.
.MON...NW winds 5 kt. Waves less than 1 ft.
.MON NIGHT...SW winds 5 kt. Waves flat.
.TUE...NW winds 5 kt. Waves less than 1 ft.
.WED...NW winds 5 kt. Waves less than 1 ft.
$$
ANZ542-212000-
Patuxent River to Broomes Island MD-
734 AM EDT Sat Jun 21 2025
.TODAY...SW winds 5 to 10 kt. Waves 1 ft.
.TONIGHT...S winds 5 to 10 kt. Waves 1 ft.
.SUN...SW winds 5 to 10 kt. Waves 1 ft.
.SUN NIGHT...SW winds 5 kt. Waves less than 1 ft.
.MON...NW winds 5 kt. Waves less than 1 ft.
.MON NIGHT...SW winds around 5 kt. Waves 1 ft.
.TUE...NW winds around 5 kt. Waves 1 ft.
.WED...N winds around 5 kt. Waves 1 ft.
$$
ANZ534-212000-
Chesapeake Bay from Drum Point to Smith Point-
734 AM EDT Sat Jun 21 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EDT THIS EVENING THROUGH
LATE TONIGHT...
.TODAY...SW winds 5 kt...becoming S late. Waves 1 to 2 ft.
.TONIGHT...S winds 10 to 15 kt with gusts to 25 kt. Waves 3 ft.
.SUN...S winds 5 to 10 kt. Waves 2 ft.
.SUN NIGHT...SW winds 5 to 10 kt. Waves 1 to 2 ft.
.MON...W winds 5 to 10 kt. Waves 1 ft.
.MON NIGHT...SW winds 5 kt. Waves less than 1 ft.
.TUE...W winds 5 kt. Waves less than 1 ft.
.WED...W winds 5 kt. Waves less than 1 ft.
$$
ANZ543-212000-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
734 AM EDT Sat Jun 21 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EDT THIS EVENING THROUGH
LATE TONIGHT...
.TODAY...SW winds 5 to 10 kt. Waves 1 ft.
.TONIGHT...S winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.SUN...SW winds 10 kt. Waves 1 ft.
.SUN NIGHT...SW winds 5 to 10 kt. Waves 1 ft.
.MON...W winds 5 to 10 kt. Waves 1 ft.
.MON NIGHT...SW winds 5 kt. Waves less than 1 ft.
.TUE...W winds 5 to 10 kt. Waves 1 ft.
.WED...SW winds 5 kt. Waves less than 1 ft.
$$
CWFLWX
Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
734 AM EDT Sat Jun 21 2025
Tidal Potomac River and Maryland portion of Chesapeake Bay.
Forecasts of wave heights do not include effects of wind direction
relative to tidal currents. Expect higher waves when winds are
blowing against the tidal flow. Waves flat where waters are iced over.
ANZ500-212000-
734 AM EDT Sat Jun 21 2025
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
A large area of high pressure will influence the area through at
least next Tuesday. A frontal boundary approaches from the north by
the middle of next week.
$$
ANZ535-212000-
Tidal Potomac from Key Bridge to Indian Head-
734 AM EDT Sat Jun 21 2025
.TODAY...SW winds around 5 kt. Waves 1 ft or less.
.TONIGHT...S winds 5 kt. Waves less than 1 ft.
.SUN...SW winds 5 kt. Waves less than 1 ft.
.SUN NIGHT...SW winds around 5 kt. Waves 1 ft.
.MON...NW winds around 5 kt. Waves 1 ft.
.MON NIGHT...W winds around 5 kt. Waves 1 ft or less.
.TUE...NW winds around 5 kt. Waves 1 ft.
.WED...NW winds around 5 kt. Waves 1 ft.
$$
ANZ536-212000-
Tidal Potomac from Indian Head to Cobb Island-
734 AM EDT Sat Jun 21 2025
.TODAY...S winds 5 kt. Waves less than 1 ft.
.TONIGHT...S winds 5 to 10 kt. Waves 1 ft.
.SUN...SW winds 5 to 10 kt. Waves 1 ft.
.SUN NIGHT...SW winds around 5 kt. Waves 1 ft.
.MON...NW winds around 5 kt. Waves 1 ft.
.MON NIGHT...W winds around 5 kt. Waves 1 ft or less.
.TUE...NW winds around 5 kt. Waves 1 ft.
.WED...NW winds around 5 kt. Waves 1 ft.
$$
ANZ537-212000-
Tidal Potomac from Cobb Island to Smith Point-
734 AM EDT Sat Jun 21 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EDT THIS EVENING THROUGH
LATE TONIGHT...
.TODAY...SW winds 5 kt...becoming SE late. Waves 1 ft or less.
.TONIGHT...S winds 10 to 15 kt...becoming SW late. Gusts up to
20 kt. Waves 1 ft.
.SUN...SW winds 5 to 10 kt. Waves 1 ft.
.SUN NIGHT...SW winds 5 to 10 kt. Waves 1 ft.
.MON...NW winds 5 kt. Waves less than 1 ft.
.MON NIGHT...SW winds around 5 kt. Waves flat.
.TUE...NW winds 5 kt. Waves less than 1 ft.
.WED...NW winds around 5 kt. Waves 1 ft or less.
$$
ANZ530-212000-
Chesapeake Bay north of Pooles Island-
734 AM EDT Sat Jun 21 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EDT THIS EVENING THROUGH
LATE TONIGHT...
.TODAY...SW winds 5 to 10 kt. Waves 1 ft or less.
.TONIGHT...SW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.SUN...SW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.SUN NIGHT...SW winds 5 to 10 kt. Waves 1 ft.
.MON...NW winds 5 kt. Waves less than 1 ft.
.MON NIGHT...W winds around 5 kt. Waves 1 ft.
.TUE...NW winds 5 kt. Waves less than 1 ft.
.WED...N winds around 5 kt. Waves 1 ft.
$$
ANZ531-212000-
Chesapeake Bay from Pooles Island to Sandy Point-
734 AM EDT Sat Jun 21 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EDT THIS EVENING THROUGH
LATE TONIGHT...
.TODAY...S winds 5 to 10 kt. Waves 1 ft or less.
.TONIGHT...S winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.SUN...SW winds 5 to 10 kt with gusts to 20 kt. Waves 1 to 2 ft.
.SUN NIGHT...SW winds 5 to 10 kt. Waves 1 ft.
.MON...NW winds 5 kt. Waves less than 1 ft.
.MON NIGHT...W winds 5 kt. Waves less than 1 ft.
.TUE...NW winds 5 kt. Waves less than 1 ft.
.WED...NE winds around 5 kt. Waves 1 ft or less.
$$
ANZ538-212000-
Patapsco River including Baltimore Harbor-
734 AM EDT Sat Jun 21 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EDT THIS EVENING THROUGH
LATE TONIGHT...
.TODAY...S winds around 5 kt...increasing to 10 kt late. Waves 1 ft
or less.
.TONIGHT...S winds 5 to 10 kt. Waves 1 ft.
.SUN...SW winds 5 to 10 kt. Waves 1 ft.
.SUN NIGHT...SW winds around 5 kt. Waves 1 ft or less.
.MON...NW winds around 5 kt. Waves flat.
.MON NIGHT...W winds around 5 kt. Waves flat.
.TUE...NW winds around 5 kt. Waves flat.
.WED...NE winds around 5 kt. Waves flat.
$$
ANZ539-212000-
Chester River to Queenstown MD-
734 AM EDT Sat Jun 21 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EDT THIS EVENING THROUGH
LATE TONIGHT...
.TODAY...SW winds 5 to 10 kt. Waves 1 ft or less.
.TONIGHT...S winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.SUN...SW winds 5 to 10 kt. Waves 1 ft.
.SUN NIGHT...SW winds 5 to 10 kt. Waves 1 ft.
.MON...NW winds 5 kt. Waves flat.
.MON NIGHT...W winds around 5 kt. Waves flat.
.TUE...NW winds around 5 kt. Waves 1 ft or less.
.WED...NE winds around 5 kt. Waves flat.
$$
ANZ532-212000-
Chesapeake Bay from Sandy Point to North Beach-
734 AM EDT Sat Jun 21 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EDT THIS EVENING THROUGH
LATE TONIGHT...
.TODAY...S winds 5 kt...increasing to 10 kt late. Waves 1 ft or
less.
.TONIGHT...S winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.SUN...SW winds 5 to 10 kt. Gusts up to 20 kt in the morning. Waves
1 to 2 ft.
.SUN NIGHT...SW winds 5 to 10 kt. Waves 1 ft.
.MON...W winds 5 kt. Waves less than 1 ft.
.MON NIGHT...SW winds 5 kt. Waves flat.
.TUE...NW winds 5 kt. Waves flat.
.WED...NE winds 5 kt. Waves flat.
$$
ANZ540-212000-
Eastern Bay-
734 AM EDT Sat Jun 21 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EDT THIS EVENING THROUGH
LATE TONIGHT...
.TODAY...SW winds 5 to 10 kt. Waves 1 ft or less.
.TONIGHT...S winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.SUN...SW winds 5 to 10 kt. Waves 1 ft.
.SUN NIGHT...SW winds 5 to 10 kt. Waves 1 ft.
.MON...NW winds 5 kt. Waves flat.
.MON NIGHT...SW winds around 5 kt. Waves flat.
.TUE...NW winds 5 kt. Waves flat.
.WED...N winds 5 kt. Waves flat.
$$
ANZ533-212000-
Chesapeake Bay from North Beach to Drum Point-
734 AM EDT Sat Jun 21 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EDT THIS EVENING THROUGH
LATE TONIGHT...
.TODAY...S winds 5 kt...increasing to 10 kt with gusts to 20 kt
late. Waves 1 ft.
.TONIGHT...S winds 10 to 15 kt...becoming SW late. Gusts up to
20 kt. Waves 2 ft.
.SUN...SW winds 5 to 10 kt. Gusts up to 20 kt in the morning. Waves
1 to 2 ft.
.SUN NIGHT...SW winds 5 to 10 kt. Waves 1 ft.
.MON...NW winds 5 kt. Waves less than 1 ft.
.MON NIGHT...SW winds 5 kt. Waves flat.
.TUE...NW winds 5 kt. Waves less than 1 ft.
.WED...N winds 5 kt. Waves less than 1 ft.
$$
ANZ541-212000-
Choptank River to Cambridge MD and the Little Choptank River-
734 AM EDT Sat Jun 21 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EDT THIS EVENING THROUGH
LATE TONIGHT...
.TODAY...SW winds 5 to 10 kt. Waves 1 ft or less.
.TONIGHT...S winds 10 to 15 kt with gusts to 20 kt. Waves 1 to 2 ft.
.SUN...SW winds 5 to 10 kt. Gusts up to 20 kt in the morning. Waves
1 to 2 ft.
.SUN NIGHT...SW winds 5 to 10 kt. Waves 1 ft.
.MON...NW winds 5 kt. Waves less than 1 ft.
.MON NIGHT...SW winds 5 kt. Waves flat.
.TUE...NW winds 5 kt. Waves less than 1 ft.
.WED...NW winds 5 kt. Waves less than 1 ft.
$$
ANZ542-212000-
Patuxent River to Broomes Island MD-
734 AM EDT Sat Jun 21 2025
.TODAY...SW winds 5 to 10 kt. Waves 1 ft.
.TONIGHT...S winds 5 to 10 kt. Waves 1 ft.
.SUN...SW winds 5 to 10 kt. Waves 1 ft.
.SUN NIGHT...SW winds 5 kt. Waves less than 1 ft.
.MON...NW winds 5 kt. Waves less than 1 ft.
.MON NIGHT...SW winds around 5 kt. Waves 1 ft.
.TUE...NW winds around 5 kt. Waves 1 ft.
.WED...N winds around 5 kt. Waves 1 ft.
$$
ANZ534-212000-
Chesapeake Bay from Drum Point to Smith Point-
734 AM EDT Sat Jun 21 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EDT THIS EVENING THROUGH
LATE TONIGHT...
.TODAY...SW winds 5 kt...becoming S late. Waves 1 to 2 ft.
.TONIGHT...S winds 10 to 15 kt with gusts to 25 kt. Waves 3 ft.
.SUN...S winds 5 to 10 kt. Waves 2 ft.
.SUN NIGHT...SW winds 5 to 10 kt. Waves 1 to 2 ft.
.MON...W winds 5 to 10 kt. Waves 1 ft.
.MON NIGHT...SW winds 5 kt. Waves less than 1 ft.
.TUE...W winds 5 kt. Waves less than 1 ft.
.WED...W winds 5 kt. Waves less than 1 ft.
$$
ANZ543-212000-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
734 AM EDT Sat Jun 21 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EDT THIS EVENING THROUGH
LATE TONIGHT...
.TODAY...SW winds 5 to 10 kt. Waves 1 ft.
.TONIGHT...S winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.SUN...SW winds 10 kt. Waves 1 ft.
.SUN NIGHT...SW winds 5 to 10 kt. Waves 1 ft.
.MON...W winds 5 to 10 kt. Waves 1 ft.
.MON NIGHT...SW winds 5 kt. Waves less than 1 ft.
.TUE...W winds 5 to 10 kt. Waves 1 ft.
.WED...SW winds 5 kt. Waves less than 1 ft.
$$