FZUS51 KLWX 181758
CWFLWX
Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
1257 PM EST Thu Dec 18 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.
ANZ500-190900-
1257 PM EST Thu Dec 18 2025
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
High-end Small Craft Advisory conditions are likely with strong
southerly winds tonight ahead of a strong cold frontal passage.
Gales will be possible early Friday morning as a line of heavy
showers moves over the waters with the actual front. After a brief
lull behind this line, strong post-frontal winds are expected Friday
afternoon into the evening as well. Gales are expected, with the
strongest winds most likely north of North Beach MD and in the upper
tidal Potomac River. A brief break in winds is expected for the
first half of Saturday, but strong southerly winds Saturday night
will likely necessitate Small Craft Advisories once again. More
Small Craft Advisories are likely Sunday in northwest flow.
$$
ANZ535-190900-
Tidal Potomac from Key Bridge to Indian Head-
1257 PM EST Thu Dec 18 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EST THIS EVENING THROUGH
LATE TONIGHT...
...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH LATE FRIDAY
NIGHT...
.THIS AFTERNOON...S winds 5 kt. Waves less than 1 ft.
.TONIGHT...SE winds 10 to 15 kt with gusts to 25 kt. Waves 1 to
2 ft. Rain. Vsby 1 to 3 NM.
.FRI...S winds 15 kt with gusts to 25 kt...becoming W with gusts to
45 kt in the late morning and afternoon. Waves 2 ft. Rain. Vsby 1 to
3 NM.
.FRI NIGHT...W winds 15 to 20 kt with gusts to 45 kt... becoming NW
5 to 10 kt after midnight. Waves 1 to 2 ft.
.SAT...SW winds 5 to 10 kt. Waves 1 ft.
.SAT NIGHT...SW winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft.
.SUN...W winds 10 to 15 kt...becoming NW 5 to 10 kt. Waves 1 ft.
.MON...W winds around 5 kt. Waves 1 ft.
$$
ANZ536-190900-
Tidal Potomac from Indian Head to Cobb Island-
1257 PM EST Thu Dec 18 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EST THIS EVENING THROUGH
LATE TONIGHT...
...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH LATE FRIDAY
NIGHT...
.THIS AFTERNOON...SE winds 5 kt. Waves less than 1 ft.
.TONIGHT...SE winds 15 to 20 kt with gusts to 25 kt. Waves 1 to
2 ft. Rain. Vsby 1 to 3 NM.
.FRI...S winds 15 to 20 kt with gusts to 25 kt... becoming W 20 to
25 kt with gusts to 40 kt in the late morning and afternoon. Waves
2 ft. Rain likely. Vsby 1 to 3 NM.
.FRI NIGHT...W winds 20 to 25 kt with gusts to 35 kt... becoming NW
5 to 10 kt after midnight. Waves 1 to 2 ft.
.SAT...S winds 5 to 10 kt. Waves 1 ft.
.SAT NIGHT...SW winds 10 to 15 kt with gusts to 20 kt. Waves 1 to
2 ft.
.SUN...W winds 10 to 15 kt...becoming NW. Waves 1 ft.
.MON...NW winds 5 to 10 kt...becoming S. Waves 1 ft.
$$
ANZ537-190900-
Tidal Potomac from Cobb Island to Smith Point-
1257 PM EST Thu Dec 18 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EST THIS EVENING THROUGH
LATE TONIGHT...
...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH LATE FRIDAY
NIGHT...
.THIS AFTERNOON...SE winds 10 kt. Waves 1 ft.
.TONIGHT...SE winds 15 to 20 kt with gusts to 30 kt. Waves 2 to
3 ft. Rain. Vsby 1 to 3 NM.
.FRI...S winds 20 kt with gusts to 25 kt...becoming W with gusts to
35 kt in the late morning and afternoon. Waves 3 ft. Rain. Vsby 1 to
3 NM.
.FRI NIGHT...NW winds 20 to 25 kt with gusts to 35 kt...diminishing
to 5 to 10 kt with gusts to 20 kt after midnight. Waves 4 ft...
subsiding to 2 ft after midnight.
.SAT...SW winds 5 to 10 kt. Waves 1 ft.
.SAT NIGHT...SW winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
.SUN...W winds 10 to 15 kt...becoming NW. Waves 2 ft.
.MON...NW winds 10 to 15 kt...becoming SW 5 to 10 kt. Waves 1 to
2 ft.
$$
ANZ530-190900-
Chesapeake Bay north of Pooles Island-
1257 PM EST Thu Dec 18 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EST THIS EVENING THROUGH
LATE TONIGHT...
...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH LATE FRIDAY
NIGHT...
.THIS AFTERNOON...E winds 5 kt. Waves less than 1 ft.
.TONIGHT...SE winds 5 to 10 kt...becoming S 15 to 20 kt with gusts
to 30 kt after midnight. Waves 1 to 2 ft. Rain. Vsby 1 to 3 NM.
.FRI...S winds 15 to 20 kt with gusts to 30 kt... becoming W 20 to
25 kt with gusts to 40 kt in the late morning and afternoon. Waves
2 to 3 ft. Rain. Vsby 1 to 3 NM.
.FRI NIGHT...W winds 20 to 25 kt with gusts to 40 kt... diminishing
to 10 to 15 kt with gusts to 25 kt after midnight. Waves 2 to 3 ft.
.SAT...SW winds 5 to 10 kt. Waves 1 ft.
.SAT NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.SUN...W winds 10 to 15 kt. Waves 1 ft.
.MON...W winds 5 to 10 kt...becoming S after midnight. Waves 1 ft or
less.
$$
ANZ531-190900-
Chesapeake Bay from Pooles Island to Sandy Point-
1257 PM EST Thu Dec 18 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EST THIS EVENING THROUGH
LATE TONIGHT...
...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH LATE FRIDAY
NIGHT...
.THIS AFTERNOON...E winds 5 kt...becoming SE late. Waves 1 ft.
.TONIGHT...SE winds 20 to 25 kt with gusts to 30 kt. Waves 2 ft...
building to 4 ft after midnight. Rain. Vsby 1 to 3 NM.
.FRI...S winds 20 to 25 kt with gusts to 30 kt... becoming W 25 to
30 kt with gusts to 45 kt in the late morning and afternoon. Waves
4 ft. Rain. Vsby 1 to 3 NM.
.FRI NIGHT...W winds 25 to 30 kt...diminishing to 10 to 15 kt with
gusts to 25 kt after midnight. Waves 5 ft... subsiding to 3 ft after
midnight.
.SAT...W winds 5 to 10 kt...becoming S 10 to 15 kt in the afternoon.
Waves 1 to 2 ft.
.SAT NIGHT...SW winds 15 to 20 kt. Waves 3 ft.
.SUN...W winds 10 to 15 kt...becoming NW. Waves 2 ft.
.MON...NW winds 10 to 15 kt...becoming SW 5 to 10 kt. Waves 1 ft.
$$
ANZ538-190900-
Patapsco River including Baltimore Harbor-
1257 PM EST Thu Dec 18 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EST THIS EVENING THROUGH
LATE TONIGHT...
...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH LATE FRIDAY
NIGHT...
.THIS AFTERNOON...SE winds 5 kt. Waves less than 1 ft.
.TONIGHT...SE winds 15 to 20 kt with gusts to 25 kt. Waves 1 to
2 ft. Rain. Vsby 1 to 3 NM.
.FRI...S winds 15 to 20 kt with gusts to 25 kt... becoming W 20 to
25 kt with gusts to 45 kt in the late morning and afternoon. Waves
2 to 3 ft. Rain. Vsby 1 to 3 NM.
.FRI NIGHT...W winds 20 to 25 kt with gusts to 40 kt... diminishing
to 10 to 15 kt with gusts to 20 kt after midnight. Waves 3 ft...
subsiding to 1 ft after midnight.
.SAT...SW winds 5 to 10 kt. Waves 1 ft.
.SAT NIGHT...SW winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft.
.SUN...W winds 10 to 15 kt...becoming NW 5 to 10 kt. Waves 1 ft.
.MON...W winds 5 to 10 kt...becoming S after midnight. Waves 1 ft or
less.
$$
ANZ539-190900-
Chester River to Queenstown MD-
1257 PM EST Thu Dec 18 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EST THIS EVENING THROUGH
LATE TONIGHT...
...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH LATE FRIDAY
NIGHT...
.THIS AFTERNOON...E winds 5 kt...becoming S late. Waves 1 ft.
.TONIGHT...SE winds 20 to 25 kt with gusts to 30 kt. Waves 1 ft...
building to 3 ft after midnight. Rain. Vsby 1 to 3 NM.
.FRI...S winds 20 to 25 kt with gusts to 30 kt... becoming W with
gusts to 40 kt in the late morning and afternoon. Waves 3 ft...
building to 5 ft in the afternoon. Rain. Vsby 1 to 3 NM.
.FRI NIGHT...W winds 20 to 25 kt with gusts to 40 kt... diminishing
to 10 to 15 kt with gusts to 25 kt after midnight. Waves 5 ft...
subsiding to 3 ft after midnight.
.SAT...W winds 5 to 10 kt...becoming S in the afternoon. Waves 1 to
2 ft.
.SAT NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.SUN...W winds 10 to 15 kt...becoming NW. Waves 2 ft.
.MON...NW winds 5 to 10 kt...becoming S after midnight. Waves 1 to
2 ft.
$$
ANZ532-190900-
Chesapeake Bay from Sandy Point to North Beach-
1257 PM EST Thu Dec 18 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EST THIS EVENING THROUGH
LATE TONIGHT...
...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH LATE FRIDAY
NIGHT...
.THIS AFTERNOON...E winds 10 kt...becoming S late. Waves 1 ft.
.TONIGHT...SE winds 10 to 15 kt with gusts to 25 kt... becoming S
20 to 25 kt with gusts to 30 kt after midnight. Waves 3 ft...
building to 5 ft after midnight. Rain. Vsby 1 to 3 NM.
.FRI...S winds 20 to 25 kt with gusts to 30 kt... becoming W 25 to
30 kt in the late morning and afternoon. Waves 5 ft. Rain. Vsby 1 to
3 NM.
.FRI NIGHT...W winds 25 to 30 kt...becoming NW 10 to 15 kt with
gusts to 25 kt after midnight. Waves 5 ft... subsiding to 2 ft after
midnight.
.SAT...W winds 5 to 10 kt...becoming S 10 to 15 kt in the afternoon.
Waves 1 to 2 ft.
.SAT NIGHT...SW winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.
.SUN...W winds 10 to 15 kt...becoming NW 15 to 20 kt. Waves 2 ft.
.MON...NW winds 10 to 15 kt...becoming SW. Waves 1 to 2 ft.
$$
ANZ540-190900-
Eastern Bay-
1257 PM EST Thu Dec 18 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EST THIS EVENING THROUGH
LATE TONIGHT...
...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH LATE FRIDAY
NIGHT...
.THIS AFTERNOON...E winds 5 kt...becoming S late. Waves 1 ft.
.TONIGHT...SE winds 20 to 25 kt with gusts to 30 kt. Waves 2 to
3 ft. Rain. Vsby 1 to 3 NM.
.FRI...S winds 20 to 25 kt with gusts to 30 kt... becoming W with
gusts to 40 kt in the late morning and afternoon. Waves 3 ft. Rain.
Vsby 1 to 3 NM.
.FRI NIGHT...W winds 20 to 25 kt with gusts to 40 kt... becoming NW
10 to 15 kt with gusts to 25 kt after midnight. Waves 4 ft...
subsiding to 2 ft after midnight.
.SAT...W winds 5 to 10 kt...becoming S 10 to 15 kt in the afternoon.
Waves 1 ft.
.SAT NIGHT...S winds 15 to 20 kt. Waves 2 ft.
.SUN...W winds 10 to 15 kt...becoming NW. Waves 1 to 2 ft.
.MON...NW winds 10 to 15 kt...becoming SW 5 to 10 kt. Waves 1 ft.
$$
ANZ533-190900-
Chesapeake Bay from North Beach to Drum Point-
1257 PM EST Thu Dec 18 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EST THIS EVENING THROUGH
LATE TONIGHT...
...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH LATE FRIDAY
NIGHT...
.THIS AFTERNOON...SE winds 10 kt. Waves 1 ft.
.TONIGHT...S winds 20 to 25 kt with gusts to 30 kt. Waves 3 ft...
building to 5 ft after midnight. Rain. Vsby 1 to 3 NM.
.FRI...S winds 20 to 25 kt with gusts to 30 kt... becoming W 25 to
30 kt in the late morning and afternoon. Waves 4 ft. Rain. Vsby 1 to
3 NM.
.FRI NIGHT...W winds 25 to 30 kt...becoming NW 10 to 15 kt with
gusts to 25 kt after midnight. Waves 5 ft... subsiding to 3 ft after
midnight.
.SAT...W winds 5 to 10 kt...becoming S 10 to 15 kt in the afternoon.
Gusts up to 20 kt. Waves 1 to 2 ft.
.SAT NIGHT...SW winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.
.SUN...W winds 15 to 20 kt...becoming NW. Waves 2 ft.
.MON...NW winds 10 to 15 kt...becoming SW. Waves 1 to 2 ft.
$$
ANZ541-190900-
Choptank River to Cambridge MD and the Little Choptank River-
1257 PM EST Thu Dec 18 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EST THIS EVENING THROUGH
LATE TONIGHT...
...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH LATE FRIDAY
NIGHT...
.THIS AFTERNOON...S winds 10 kt. Waves 1 ft.
.TONIGHT...S winds 20 to 25 kt with gusts to 30 kt. Waves 2 to 3 ft.
Rain. Vsby 1 to 3 NM.
.FRI...S winds 20 to 25 kt with gusts to 30 kt... becoming W 25 to
30 kt in the late morning and afternoon. Waves 3 ft. Rain. Vsby 1 to
3 NM.
.FRI NIGHT...W winds 25 to 30 kt...becoming NW 10 to 15 kt with
gusts to 25 kt after midnight. Waves 3 ft.
.SAT...NW winds 5 to 10 kt...becoming S 10 to 15 kt in the
afternoon. Waves 1 ft.
.SAT NIGHT...S winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
.SUN...W winds 15 to 20 kt...becoming NW. Waves 2 ft.
.MON...NW winds 10 to 15 kt...becoming SW. Waves 1 to 2 ft.
$$
ANZ542-190900-
Patuxent River to Broomes Island MD-
1257 PM EST Thu Dec 18 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EST THIS EVENING THROUGH
LATE TONIGHT...
...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH LATE FRIDAY
NIGHT...
.THIS AFTERNOON...SE winds 5 kt. Waves less than 1 ft.
.TONIGHT...SE winds 15 to 20 kt with gusts to 25 kt. Waves 1 ft.
Rain. Vsby 1 to 3 NM.
.FRI...S winds 15 to 20 kt with gusts to 25 kt... becoming W 20 to
25 kt with gusts to 35 kt in the late morning and afternoon. Waves
1 to 2 ft. Rain. Vsby 1 to 3 NM.
.FRI NIGHT...W winds 20 to 25 kt with gusts to 35 kt... becoming NW
5 to 10 kt with gusts to 20 kt after midnight. Waves 1 ft.
.SAT...W winds 5 kt...becoming S in the afternoon. Waves 1 ft.
.SAT NIGHT...SW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.SUN...NW winds 10 kt. Waves 1 ft.
.MON...NW winds 5 to 10 kt...becoming S after midnight. Waves 1 ft.
$$
ANZ534-190900-
Chesapeake Bay from Drum Point to Smith Point-
1257 PM EST Thu Dec 18 2025
...GALE WARNING IN EFFECT FROM 6 PM EST THIS EVENING THROUGH LATE
FRIDAY NIGHT...
.THIS AFTERNOON...S winds 10 kt. Waves 1 to 2 ft.
.TONIGHT...SE winds 25 to 30 kt. Waves 3 ft...building to 5 ft after
midnight. Rain. Vsby 1 NM or less.
.FRI...S winds 20 to 25 kt with gusts to 30 kt... becoming W 25 to
30 kt in the late morning and afternoon. Waves 5 ft. Rain. Vsby 1 to
3 NM.
.FRI NIGHT...NW winds 25 to 30 kt...diminishing to 10 to 15 kt with
gusts to 25 kt after midnight. Waves 5 ft... subsiding to 3 ft after
midnight.
.SAT...NW winds 5 to 10 kt...becoming S 10 to 15 kt in the
afternoon. Waves 1 to 2 ft.
.SAT NIGHT...S winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.
.SUN...W winds 10 to 15 kt...becoming NW 15 to 20 kt. Waves 2 to
3 ft.
.MON...NW winds 15 to 20 kt...diminishing to 5 to 10 kt in the
afternoon and evening, then becoming S after midnight. Waves 2 to
3 ft...subsiding to 1 ft.
$$
ANZ543-190900-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
1257 PM EST Thu Dec 18 2025
...GALE WARNING IN EFFECT FROM 6 PM EST THIS EVENING THROUGH LATE
FRIDAY NIGHT...
.THIS AFTERNOON...S winds 10 kt. Waves 1 ft.
.TONIGHT...S winds 20 to 25 kt with gusts to 35 kt. Waves 2 to 3 ft.
Rain. Vsby 1 NM or less.
.FRI...S winds 20 to 25 kt...becoming W 25 to 30 kt in the late
morning and afternoon. Gusts up to 35 kt until late afternoon. Waves
3 ft. Rain. Vsby 1 to 3 NM.
.FRI NIGHT...NW winds 25 to 30 kt...diminishing to 10 to 15 kt with
gusts to 25 kt after midnight. Waves 2 to 3 ft.
.SAT...NW winds 5 to 10 kt...becoming S 10 to 15 kt in the
afternoon. Waves 1 ft.
.SAT NIGHT...S winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
.SUN...W winds 10 to 15 kt...becoming NW 15 to 20 kt. Waves 1 to
2 ft.
.MON...NW winds 10 to 15 kt...becoming W 5 kt in the evening, then
becoming S after midnight. Waves 1 to 2 ft.
$$
CWFLWX
Coastal Waters Forecast
National Weather Service Baltimore MD/Washington DC
1257 PM EST Thu Dec 18 2025
Tidal Potomac River and Maryland portion of Chesapeake Bay.
Forecasts of wave heights do not include effects of wind direction
relative to tidal currents. Expect higher waves when winds are
blowing against the tidal flow. Waves flat where waters are iced over.
ANZ500-190900-
1257 PM EST Thu Dec 18 2025
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
High-end Small Craft Advisory conditions are likely with strong
southerly winds tonight ahead of a strong cold frontal passage.
Gales will be possible early Friday morning as a line of heavy
showers moves over the waters with the actual front. After a brief
lull behind this line, strong post-frontal winds are expected Friday
afternoon into the evening as well. Gales are expected, with the
strongest winds most likely north of North Beach MD and in the upper
tidal Potomac River. A brief break in winds is expected for the
first half of Saturday, but strong southerly winds Saturday night
will likely necessitate Small Craft Advisories once again. More
Small Craft Advisories are likely Sunday in northwest flow.
$$
ANZ535-190900-
Tidal Potomac from Key Bridge to Indian Head-
1257 PM EST Thu Dec 18 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EST THIS EVENING THROUGH
LATE TONIGHT...
...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH LATE FRIDAY
NIGHT...
.THIS AFTERNOON...S winds 5 kt. Waves less than 1 ft.
.TONIGHT...SE winds 10 to 15 kt with gusts to 25 kt. Waves 1 to
2 ft. Rain. Vsby 1 to 3 NM.
.FRI...S winds 15 kt with gusts to 25 kt...becoming W with gusts to
45 kt in the late morning and afternoon. Waves 2 ft. Rain. Vsby 1 to
3 NM.
.FRI NIGHT...W winds 15 to 20 kt with gusts to 45 kt... becoming NW
5 to 10 kt after midnight. Waves 1 to 2 ft.
.SAT...SW winds 5 to 10 kt. Waves 1 ft.
.SAT NIGHT...SW winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft.
.SUN...W winds 10 to 15 kt...becoming NW 5 to 10 kt. Waves 1 ft.
.MON...W winds around 5 kt. Waves 1 ft.
$$
ANZ536-190900-
Tidal Potomac from Indian Head to Cobb Island-
1257 PM EST Thu Dec 18 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EST THIS EVENING THROUGH
LATE TONIGHT...
...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH LATE FRIDAY
NIGHT...
.THIS AFTERNOON...SE winds 5 kt. Waves less than 1 ft.
.TONIGHT...SE winds 15 to 20 kt with gusts to 25 kt. Waves 1 to
2 ft. Rain. Vsby 1 to 3 NM.
.FRI...S winds 15 to 20 kt with gusts to 25 kt... becoming W 20 to
25 kt with gusts to 40 kt in the late morning and afternoon. Waves
2 ft. Rain likely. Vsby 1 to 3 NM.
.FRI NIGHT...W winds 20 to 25 kt with gusts to 35 kt... becoming NW
5 to 10 kt after midnight. Waves 1 to 2 ft.
.SAT...S winds 5 to 10 kt. Waves 1 ft.
.SAT NIGHT...SW winds 10 to 15 kt with gusts to 20 kt. Waves 1 to
2 ft.
.SUN...W winds 10 to 15 kt...becoming NW. Waves 1 ft.
.MON...NW winds 5 to 10 kt...becoming S. Waves 1 ft.
$$
ANZ537-190900-
Tidal Potomac from Cobb Island to Smith Point-
1257 PM EST Thu Dec 18 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EST THIS EVENING THROUGH
LATE TONIGHT...
...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH LATE FRIDAY
NIGHT...
.THIS AFTERNOON...SE winds 10 kt. Waves 1 ft.
.TONIGHT...SE winds 15 to 20 kt with gusts to 30 kt. Waves 2 to
3 ft. Rain. Vsby 1 to 3 NM.
.FRI...S winds 20 kt with gusts to 25 kt...becoming W with gusts to
35 kt in the late morning and afternoon. Waves 3 ft. Rain. Vsby 1 to
3 NM.
.FRI NIGHT...NW winds 20 to 25 kt with gusts to 35 kt...diminishing
to 5 to 10 kt with gusts to 20 kt after midnight. Waves 4 ft...
subsiding to 2 ft after midnight.
.SAT...SW winds 5 to 10 kt. Waves 1 ft.
.SAT NIGHT...SW winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
.SUN...W winds 10 to 15 kt...becoming NW. Waves 2 ft.
.MON...NW winds 10 to 15 kt...becoming SW 5 to 10 kt. Waves 1 to
2 ft.
$$
ANZ530-190900-
Chesapeake Bay north of Pooles Island-
1257 PM EST Thu Dec 18 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EST THIS EVENING THROUGH
LATE TONIGHT...
...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH LATE FRIDAY
NIGHT...
.THIS AFTERNOON...E winds 5 kt. Waves less than 1 ft.
.TONIGHT...SE winds 5 to 10 kt...becoming S 15 to 20 kt with gusts
to 30 kt after midnight. Waves 1 to 2 ft. Rain. Vsby 1 to 3 NM.
.FRI...S winds 15 to 20 kt with gusts to 30 kt... becoming W 20 to
25 kt with gusts to 40 kt in the late morning and afternoon. Waves
2 to 3 ft. Rain. Vsby 1 to 3 NM.
.FRI NIGHT...W winds 20 to 25 kt with gusts to 40 kt... diminishing
to 10 to 15 kt with gusts to 25 kt after midnight. Waves 2 to 3 ft.
.SAT...SW winds 5 to 10 kt. Waves 1 ft.
.SAT NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.SUN...W winds 10 to 15 kt. Waves 1 ft.
.MON...W winds 5 to 10 kt...becoming S after midnight. Waves 1 ft or
less.
$$
ANZ531-190900-
Chesapeake Bay from Pooles Island to Sandy Point-
1257 PM EST Thu Dec 18 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EST THIS EVENING THROUGH
LATE TONIGHT...
...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH LATE FRIDAY
NIGHT...
.THIS AFTERNOON...E winds 5 kt...becoming SE late. Waves 1 ft.
.TONIGHT...SE winds 20 to 25 kt with gusts to 30 kt. Waves 2 ft...
building to 4 ft after midnight. Rain. Vsby 1 to 3 NM.
.FRI...S winds 20 to 25 kt with gusts to 30 kt... becoming W 25 to
30 kt with gusts to 45 kt in the late morning and afternoon. Waves
4 ft. Rain. Vsby 1 to 3 NM.
.FRI NIGHT...W winds 25 to 30 kt...diminishing to 10 to 15 kt with
gusts to 25 kt after midnight. Waves 5 ft... subsiding to 3 ft after
midnight.
.SAT...W winds 5 to 10 kt...becoming S 10 to 15 kt in the afternoon.
Waves 1 to 2 ft.
.SAT NIGHT...SW winds 15 to 20 kt. Waves 3 ft.
.SUN...W winds 10 to 15 kt...becoming NW. Waves 2 ft.
.MON...NW winds 10 to 15 kt...becoming SW 5 to 10 kt. Waves 1 ft.
$$
ANZ538-190900-
Patapsco River including Baltimore Harbor-
1257 PM EST Thu Dec 18 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EST THIS EVENING THROUGH
LATE TONIGHT...
...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH LATE FRIDAY
NIGHT...
.THIS AFTERNOON...SE winds 5 kt. Waves less than 1 ft.
.TONIGHT...SE winds 15 to 20 kt with gusts to 25 kt. Waves 1 to
2 ft. Rain. Vsby 1 to 3 NM.
.FRI...S winds 15 to 20 kt with gusts to 25 kt... becoming W 20 to
25 kt with gusts to 45 kt in the late morning and afternoon. Waves
2 to 3 ft. Rain. Vsby 1 to 3 NM.
.FRI NIGHT...W winds 20 to 25 kt with gusts to 40 kt... diminishing
to 10 to 15 kt with gusts to 20 kt after midnight. Waves 3 ft...
subsiding to 1 ft after midnight.
.SAT...SW winds 5 to 10 kt. Waves 1 ft.
.SAT NIGHT...SW winds 5 to 10 kt with gusts to 20 kt. Waves 1 ft.
.SUN...W winds 10 to 15 kt...becoming NW 5 to 10 kt. Waves 1 ft.
.MON...W winds 5 to 10 kt...becoming S after midnight. Waves 1 ft or
less.
$$
ANZ539-190900-
Chester River to Queenstown MD-
1257 PM EST Thu Dec 18 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EST THIS EVENING THROUGH
LATE TONIGHT...
...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH LATE FRIDAY
NIGHT...
.THIS AFTERNOON...E winds 5 kt...becoming S late. Waves 1 ft.
.TONIGHT...SE winds 20 to 25 kt with gusts to 30 kt. Waves 1 ft...
building to 3 ft after midnight. Rain. Vsby 1 to 3 NM.
.FRI...S winds 20 to 25 kt with gusts to 30 kt... becoming W with
gusts to 40 kt in the late morning and afternoon. Waves 3 ft...
building to 5 ft in the afternoon. Rain. Vsby 1 to 3 NM.
.FRI NIGHT...W winds 20 to 25 kt with gusts to 40 kt... diminishing
to 10 to 15 kt with gusts to 25 kt after midnight. Waves 5 ft...
subsiding to 3 ft after midnight.
.SAT...W winds 5 to 10 kt...becoming S in the afternoon. Waves 1 to
2 ft.
.SAT NIGHT...S winds 10 to 15 kt with gusts to 20 kt. Waves 2 ft.
.SUN...W winds 10 to 15 kt...becoming NW. Waves 2 ft.
.MON...NW winds 5 to 10 kt...becoming S after midnight. Waves 1 to
2 ft.
$$
ANZ532-190900-
Chesapeake Bay from Sandy Point to North Beach-
1257 PM EST Thu Dec 18 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EST THIS EVENING THROUGH
LATE TONIGHT...
...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH LATE FRIDAY
NIGHT...
.THIS AFTERNOON...E winds 10 kt...becoming S late. Waves 1 ft.
.TONIGHT...SE winds 10 to 15 kt with gusts to 25 kt... becoming S
20 to 25 kt with gusts to 30 kt after midnight. Waves 3 ft...
building to 5 ft after midnight. Rain. Vsby 1 to 3 NM.
.FRI...S winds 20 to 25 kt with gusts to 30 kt... becoming W 25 to
30 kt in the late morning and afternoon. Waves 5 ft. Rain. Vsby 1 to
3 NM.
.FRI NIGHT...W winds 25 to 30 kt...becoming NW 10 to 15 kt with
gusts to 25 kt after midnight. Waves 5 ft... subsiding to 2 ft after
midnight.
.SAT...W winds 5 to 10 kt...becoming S 10 to 15 kt in the afternoon.
Waves 1 to 2 ft.
.SAT NIGHT...SW winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.
.SUN...W winds 10 to 15 kt...becoming NW 15 to 20 kt. Waves 2 ft.
.MON...NW winds 10 to 15 kt...becoming SW. Waves 1 to 2 ft.
$$
ANZ540-190900-
Eastern Bay-
1257 PM EST Thu Dec 18 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EST THIS EVENING THROUGH
LATE TONIGHT...
...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH LATE FRIDAY
NIGHT...
.THIS AFTERNOON...E winds 5 kt...becoming S late. Waves 1 ft.
.TONIGHT...SE winds 20 to 25 kt with gusts to 30 kt. Waves 2 to
3 ft. Rain. Vsby 1 to 3 NM.
.FRI...S winds 20 to 25 kt with gusts to 30 kt... becoming W with
gusts to 40 kt in the late morning and afternoon. Waves 3 ft. Rain.
Vsby 1 to 3 NM.
.FRI NIGHT...W winds 20 to 25 kt with gusts to 40 kt... becoming NW
10 to 15 kt with gusts to 25 kt after midnight. Waves 4 ft...
subsiding to 2 ft after midnight.
.SAT...W winds 5 to 10 kt...becoming S 10 to 15 kt in the afternoon.
Waves 1 ft.
.SAT NIGHT...S winds 15 to 20 kt. Waves 2 ft.
.SUN...W winds 10 to 15 kt...becoming NW. Waves 1 to 2 ft.
.MON...NW winds 10 to 15 kt...becoming SW 5 to 10 kt. Waves 1 ft.
$$
ANZ533-190900-
Chesapeake Bay from North Beach to Drum Point-
1257 PM EST Thu Dec 18 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EST THIS EVENING THROUGH
LATE TONIGHT...
...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH LATE FRIDAY
NIGHT...
.THIS AFTERNOON...SE winds 10 kt. Waves 1 ft.
.TONIGHT...S winds 20 to 25 kt with gusts to 30 kt. Waves 3 ft...
building to 5 ft after midnight. Rain. Vsby 1 to 3 NM.
.FRI...S winds 20 to 25 kt with gusts to 30 kt... becoming W 25 to
30 kt in the late morning and afternoon. Waves 4 ft. Rain. Vsby 1 to
3 NM.
.FRI NIGHT...W winds 25 to 30 kt...becoming NW 10 to 15 kt with
gusts to 25 kt after midnight. Waves 5 ft... subsiding to 3 ft after
midnight.
.SAT...W winds 5 to 10 kt...becoming S 10 to 15 kt in the afternoon.
Gusts up to 20 kt. Waves 1 to 2 ft.
.SAT NIGHT...SW winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.
.SUN...W winds 15 to 20 kt...becoming NW. Waves 2 ft.
.MON...NW winds 10 to 15 kt...becoming SW. Waves 1 to 2 ft.
$$
ANZ541-190900-
Choptank River to Cambridge MD and the Little Choptank River-
1257 PM EST Thu Dec 18 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EST THIS EVENING THROUGH
LATE TONIGHT...
...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH LATE FRIDAY
NIGHT...
.THIS AFTERNOON...S winds 10 kt. Waves 1 ft.
.TONIGHT...S winds 20 to 25 kt with gusts to 30 kt. Waves 2 to 3 ft.
Rain. Vsby 1 to 3 NM.
.FRI...S winds 20 to 25 kt with gusts to 30 kt... becoming W 25 to
30 kt in the late morning and afternoon. Waves 3 ft. Rain. Vsby 1 to
3 NM.
.FRI NIGHT...W winds 25 to 30 kt...becoming NW 10 to 15 kt with
gusts to 25 kt after midnight. Waves 3 ft.
.SAT...NW winds 5 to 10 kt...becoming S 10 to 15 kt in the
afternoon. Waves 1 ft.
.SAT NIGHT...S winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
.SUN...W winds 15 to 20 kt...becoming NW. Waves 2 ft.
.MON...NW winds 10 to 15 kt...becoming SW. Waves 1 to 2 ft.
$$
ANZ542-190900-
Patuxent River to Broomes Island MD-
1257 PM EST Thu Dec 18 2025
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM EST THIS EVENING THROUGH
LATE TONIGHT...
...GALE WARNING IN EFFECT FROM FRIDAY MORNING THROUGH LATE FRIDAY
NIGHT...
.THIS AFTERNOON...SE winds 5 kt. Waves less than 1 ft.
.TONIGHT...SE winds 15 to 20 kt with gusts to 25 kt. Waves 1 ft.
Rain. Vsby 1 to 3 NM.
.FRI...S winds 15 to 20 kt with gusts to 25 kt... becoming W 20 to
25 kt with gusts to 35 kt in the late morning and afternoon. Waves
1 to 2 ft. Rain. Vsby 1 to 3 NM.
.FRI NIGHT...W winds 20 to 25 kt with gusts to 35 kt... becoming NW
5 to 10 kt with gusts to 20 kt after midnight. Waves 1 ft.
.SAT...W winds 5 kt...becoming S in the afternoon. Waves 1 ft.
.SAT NIGHT...SW winds 10 to 15 kt with gusts to 20 kt. Waves 1 ft.
.SUN...NW winds 10 kt. Waves 1 ft.
.MON...NW winds 5 to 10 kt...becoming S after midnight. Waves 1 ft.
$$
ANZ534-190900-
Chesapeake Bay from Drum Point to Smith Point-
1257 PM EST Thu Dec 18 2025
...GALE WARNING IN EFFECT FROM 6 PM EST THIS EVENING THROUGH LATE
FRIDAY NIGHT...
.THIS AFTERNOON...S winds 10 kt. Waves 1 to 2 ft.
.TONIGHT...SE winds 25 to 30 kt. Waves 3 ft...building to 5 ft after
midnight. Rain. Vsby 1 NM or less.
.FRI...S winds 20 to 25 kt with gusts to 30 kt... becoming W 25 to
30 kt in the late morning and afternoon. Waves 5 ft. Rain. Vsby 1 to
3 NM.
.FRI NIGHT...NW winds 25 to 30 kt...diminishing to 10 to 15 kt with
gusts to 25 kt after midnight. Waves 5 ft... subsiding to 3 ft after
midnight.
.SAT...NW winds 5 to 10 kt...becoming S 10 to 15 kt in the
afternoon. Waves 1 to 2 ft.
.SAT NIGHT...S winds 15 to 20 kt with gusts to 25 kt. Waves 3 ft.
.SUN...W winds 10 to 15 kt...becoming NW 15 to 20 kt. Waves 2 to
3 ft.
.MON...NW winds 15 to 20 kt...diminishing to 5 to 10 kt in the
afternoon and evening, then becoming S after midnight. Waves 2 to
3 ft...subsiding to 1 ft.
$$
ANZ543-190900-
Tangier Sound and the inland waters surrounding Bloodsworth Island-
1257 PM EST Thu Dec 18 2025
...GALE WARNING IN EFFECT FROM 6 PM EST THIS EVENING THROUGH LATE
FRIDAY NIGHT...
.THIS AFTERNOON...S winds 10 kt. Waves 1 ft.
.TONIGHT...S winds 20 to 25 kt with gusts to 35 kt. Waves 2 to 3 ft.
Rain. Vsby 1 NM or less.
.FRI...S winds 20 to 25 kt...becoming W 25 to 30 kt in the late
morning and afternoon. Gusts up to 35 kt until late afternoon. Waves
3 ft. Rain. Vsby 1 to 3 NM.
.FRI NIGHT...NW winds 25 to 30 kt...diminishing to 10 to 15 kt with
gusts to 25 kt after midnight. Waves 2 to 3 ft.
.SAT...NW winds 5 to 10 kt...becoming S 10 to 15 kt in the
afternoon. Waves 1 ft.
.SAT NIGHT...S winds 15 to 20 kt with gusts to 25 kt. Waves 2 ft.
.SUN...W winds 10 to 15 kt...becoming NW 15 to 20 kt. Waves 1 to
2 ft.
.MON...NW winds 10 to 15 kt...becoming W 5 kt in the evening, then
becoming S after midnight. Waves 1 to 2 ft.
$$