829
FZUS51 KLWX 220628
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
228 AM EDT WED JUL 22 2026
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.
ANZ500-222000-
228 AM EDT WED JUL 22 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
A COLD FRONT WILL SLOWLY PUSH THROUGH THE WATERS TODAY. HIGH
PRESSURE WILL BUILD IN FROM THE WEST FOR THE END OF THE WEEK.
ANZ535-222000-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
228 AM EDT WED JUL 22 2026
OVERNIGHT
SW WINDS 10 KT. WAVES 1 FT. NUMEROUS SHOWERS WITH
ISOLATED TSTMS.
WED
W WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY WITH A CHANCE
OF TSTMS.
WED NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
THU
N WINDS 5 TO 10 KT. WAVES 1 FT.
THU NIGHT
NE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
FRI
E WINDS AROUND 5 KT. WAVES 1 FT.
FRI NIGHT
E WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SAT
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SUN
S WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS THROUGH
THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ536-222000-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
228 AM EDT WED JUL 22 2026
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EDT EARLY THIS
MORNING...
OVERNIGHT
SW WINDS 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
NUMEROUS SHOWERS WITH ISOLATED TSTMS.
WED
W WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE MORNING. WAVES
1 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
WED NIGHT...SW WINDS 5 KT
BECOMING N IN THE LATE EVENING AND
OVERNIGHT. WAVES 1 FT. A CHANCE OF SHOWERS AND TSTMS.
THU
N WINDS 5 TO 10 KT. WAVES 1 FT.
THU NIGHT
NE WINDS AROUND 5 KT. WAVES 1 FT.
FRI
E WINDS AROUND 5 KT. WAVES 1 FT.
FRI NIGHT
E WINDS AROUND 5 KT. WAVES 1 FT.
SAT
SE WINDS AROUND 5 KT. WAVES 1 FT.
SUN
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ537-222000-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
228 AM EDT WED JUL 22 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH THURSDAY
MORNING...
OVERNIGHT
SW WINDS 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT. SHOWERS
AND SCATTERED TSTMS.
WED
SW WINDS 10 TO 15 KT. GUSTS UP TO 25 KT UNTIL LATE AFTERNOON.
WAVES 2 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
WED NIGHT...W WINDS 5 TO 10 KT
BECOMING N 10 TO 15 KT WITH GUSTS
TO 20 KT AFTER MIDNIGHT. WAVES 1 TO 2 FT. SHOWERS WITH A CHANCE OF
TSTMS.
THU
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
THU NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
E WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
E WINDS AROUND 5 KT. WAVES 1 FT.
SUN...E WINDS AROUND 5 KT
BECOMING S. WAVES 1 FT OR LESS. A
CHANCE OF SHOWERS THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ530-222000-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
228 AM EDT WED JUL 22 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM EDT THIS MORNING
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH THURSDAY
MORNING...
OVERNIGHT
SW WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
NUMEROUS SHOWERS AND SCATTERED TSTMS.
WED
W WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
WED NIGHT
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE LATE
EVENING AND OVERNIGHT. WAVES 1 FT.
THU
N WINDS 5 TO 10 KT. WAVES 1 FT.
THU NIGHT
NE WINDS AROUND 5 KT. WAVES 1 FT.
FRI
E WINDS AROUND 5 KT. WAVES 1 FT.
FRI NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
E WINDS AROUND 5 KT. WAVES 1 FT.
SUN
S WINDS AROUND 5 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ531-222000-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
228 AM EDT WED JUL 22 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM EDT THIS MORNING
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH THURSDAY
MORNING...
OVERNIGHT
SW WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 2 TO 3 FT.
NUMEROUS SHOWERS AND SCATTERED TSTMS.
WED...W WINDS 10 TO 15 KT
DIMINISHING TO 5 TO 10 KT LATE. GUSTS
UP TO 20 KT. WAVES 1 TO 2 FT.
WED NIGHT...NW WINDS 10 TO 15 KT
BECOMING N AFTER MIDNIGHT. GUSTS
UP TO 20 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS AND TSTMS.
THU
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE MORNING. WAVES
1 TO 2 FT.
THU NIGHT
NE WINDS AROUND 5 KT. WAVES FLAT.
FRI
E WINDS AROUND 5 KT. WAVES 1 FT.
FRI NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN...SE WINDS AROUND 5 KT
BECOMING SW. WAVES 1 FT OR LESS. A
CHANCE OF SHOWERS AFTER MIDNIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ538-222000-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
228 AM EDT WED JUL 22 2026
OVERNIGHT
SW WINDS 10 KT. WAVES 1 FT. NUMEROUS SHOWERS AND
SCATTERED TSTMS.
WED
W WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
N WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE LATE
EVENING AND OVERNIGHT. WAVES 1 FT. A CHANCE OF SHOWERS AND TSTMS.
THU
N WINDS 5 TO 10 KT. WAVES 1 FT.
THU NIGHT
NE WINDS AROUND 5 KT. WAVES FLAT.
FRI
E WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
FRI NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
SE WINDS AROUND 5 KT. WAVES FLAT.
SUN
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ539-222000-
CHESTER RIVER TO QUEENSTOWN MD-
228 AM EDT WED JUL 22 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM EDT THIS MORNING
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH THURSDAY
MORNING...
OVERNIGHT
SW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
NUMEROUS SHOWERS AND SCATTERED TSTMS.
WED...W WINDS 10 TO 15 KT
DIMINISHING TO 5 KT LATE. GUSTS UP TO
20 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS AND TSTMS.
WED NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT. A CHANCE OF SHOWERS AND TSTMS.
THU
N WINDS 10 TO 15 KT. WAVES 1 FT.
THU NIGHT
E WINDS AROUND 5 KT. WAVES FLAT.
FRI
E WINDS AROUND 5 KT. WAVES 1 FT.
FRI NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SAT
E WINDS AROUND 5 KT. WAVES FLAT.
SUN
S WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS
THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ532-222000-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
228 AM EDT WED JUL 22 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT TODAY
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH THURSDAY
MORNING...
OVERNIGHT
SW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
NUMEROUS SHOWERS AND SCATTERED TSTMS.
WED...W WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 3 FT
SUBSIDING TO 1 FT IN THE AFTERNOON. A CHANCE OF SHOWERS AND TSTMS.
WED NIGHT...NW WINDS 5 TO 10 KT
BECOMING N 15 KT WITH GUSTS TO
20 KT AFTER MIDNIGHT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS AND
TSTMS.
THU
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
THU NIGHT
E WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI
E WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
E WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN...SE WINDS 5 KT
BECOMING SW. WAVES 1 FT OR LESS. A CHANCE OF
SHOWERS THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ540-222000-
EASTERN BAY-
228 AM EDT WED JUL 22 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT TODAY
...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH THURSDAY
MORNING...
OVERNIGHT
SW WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
NUMEROUS SHOWERS AND SCATTERED TSTMS.
WED...W WINDS 10 TO 15 KT
DIMINISHING TO 5 KT LATE. GUSTS UP TO
20 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS AND TSTMS.
WED NIGHT...NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING N
WITH GUSTS TO 20 KT LATE. WAVES 1 FT. A CHANCE OF SHOWERS AND TSTMS.
THU
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
THU NIGHT
E WINDS AROUND 5 KT. WAVES FLAT.
FRI
E WINDS AROUND 5 KT. WAVES 1 FT.
FRI NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SAT
E WINDS AROUND 5 KT. WAVES FLAT.
SUN...SE WINDS 5 KT
BECOMING SW. WAVES 1 FT OR LESS. A CHANCE OF
SHOWERS THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ533-222000-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
228 AM EDT WED JUL 22 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT TODAY
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH THURSDAY
MORNING...
OVERNIGHT
SW WINDS 20 KT WITH GUSTS TO 25 KT. WAVES 2 TO 3 FT.
NUMEROUS SHOWERS AND SCATTERED TSTMS.
WED
W WINDS 10 TO 15 KT. GUSTS UP TO 25 KT IN THE MORNING. WAVES
3 FT...SUBSIDING TO 1 FT IN THE AFTERNOON. SHOWERS LIKELY WITH A
CHANCE OF TSTMS.
WED NIGHT...W WINDS 5 TO 10 KT
BECOMING N 15 TO 20 KT AFTER
MIDNIGHT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS AND TSTMS.
THU
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
THU NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
E WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SUN...NE WINDS AROUND 5 KT
BECOMING S. WAVES 1 FT OR LESS. A
CHANCE OF SHOWERS THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ541-222000-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
228 AM EDT WED JUL 22 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT TODAY
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH THURSDAY
MORNING...
OVERNIGHT
SW WINDS 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
NUMEROUS SHOWERS AND SCATTERED TSTMS.
WED...SW WINDS 10 TO 15 KT
BECOMING W 5 KT LATE. GUSTS UP TO
20 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS AND TSTMS.
WED NIGHT...W WINDS 5 TO 10 KT
BECOMING N 10 TO 15 KT WITH GUSTS
TO 20 KT AFTER MIDNIGHT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS AND
TSTMS.
THU
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
THU NIGHT
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI
E WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
E WINDS AROUND 5 KT. WAVES 1 FT.
SUN...N WINDS AROUND 5 KT
BECOMING SW. WAVES 1 FT OR LESS. A
CHANCE OF SHOWERS THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ542-222000-
PATUXENT RIVER TO BROOMES ISLAND MD-
228 AM EDT WED JUL 22 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT TODAY
OVERNIGHT
SW WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT. SHOWERS
AND SCATTERED TSTMS.
WED
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT UNTIL LATE AFTERNOON.
WAVES 1 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
WED NIGHT...W WINDS 5 KT
BECOMING N WITH GUSTS TO 20 KT AFTER
MIDNIGHT. WAVES 1 FT. SHOWERS WITH A CHANCE OF TSTMS.
THU
N WINDS 5 TO 10 KT. WAVES 1 FT.
THU NIGHT
NE WINDS AROUND 5 KT. WAVES 1 FT.
FRI
E WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
E WINDS AROUND 5 KT. WAVES 1 FT.
SUN
SE WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS THROUGH
THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ534-222000-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
228 AM EDT WED JUL 22 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH THURSDAY
MORNING...
OVERNIGHT
SW WINDS 20 KT WITH GUSTS TO 30 KT. WAVES 4 FT. SHOWERS
AND SCATTERED TSTMS.
WED...SW WINDS 20 TO 25 KT WITH GUSTS TO 30 KT
DIMINISHING TO
10 TO 15 KT WITH GUSTS TO 20 KT IN THE AFTERNOON. WAVES 3 FT.
SHOWERS WITH A CHANCE OF TSTMS.
WED NIGHT...SW WINDS 5 TO 10 KT
BECOMING N 10 TO 15 KT AFTER
MIDNIGHT. GUSTS UP TO 20 KT. WAVES 2 FT. SHOWERS WITH A CHANCE OF
TSTMS.
THU
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
THU NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
E WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SUN...E WINDS 5 KT
BECOMING S. WAVES 1 FT OR LESS. A CHANCE OF
SHOWERS THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ543-222000-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
228 AM EDT WED JUL 22 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON
...SMALL CRAFT ADVISORY IN EFFECT FROM LATE TONIGHT THROUGH THURSDAY
MORNING...
OVERNIGHT
SW WINDS 20 KT WITH GUSTS TO 30 KT. WAVES 3 FT. SHOWERS
AND SCATTERED TSTMS. PATCHY FOG. VSBY 1 NM OR LESS.
WED...SW WINDS 20 TO 25 KT WITH GUSTS TO 30 KT
DIMINISHING TO
10 TO 15 KT WITH GUSTS TO 25 KT IN THE AFTERNOON. WAVES 2 TO 3 FT.
SHOWERS WITH A CHANCE OF TSTMS.
WED NIGHT...SW WINDS 5 TO 10 KT
BECOMING N 10 TO 15 KT AFTER
MIDNIGHT. GUSTS UP TO 20 KT. WAVES 1 FT. SHOWERS WITH A CHANCE OF
TSTMS.
THU
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE MORNING. WAVES
1 FT.
THU NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
E WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
E WINDS 5 TO 10 KT. WAVES 1 FT.
SUN...NW WINDS 5 KT
BECOMING S. WAVES 1 FT OR LESS. A CHANCE OF
SHOWERS THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
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