171
FZUS51 KLWX 281828
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
228 PM EDT TUE JUL 28 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.
ANZ500-290800-
228 PM EDT TUE JUL 28 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
A STRONG FRONTAL SYSTEM PUSHES ACROSS THE AREA THROUGH TONIGHT.
WEAK HIGH PRESSURE SLOWLY BUILDS IN BY MID-WEEK. SMALL CRAFT
ADVISORIES MAY NEED TO BE EXTENDED THROUGH FRIDAY.
ANZ535-290800-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
228 PM EDT TUE JUL 28 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY MORNING THROUGH
WEDNESDAY AFTERNOON...
THIS AFTERNOON
SW WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SHOWERS AND TSTMS.
TONIGHT...W WINDS 5 TO 10 KT
BECOMING NW LATE. WAVES 1 FT.
SHOWERS AND TSTMS.
WED
NW WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
WED NIGHT
NW WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
THU
NW WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
THU NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
NE WINDS AROUND 5 KT. WAVES 1 FT.
SAT
S WINDS 5 TO 10 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ536-290800-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
228 PM EDT TUE JUL 28 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY MORNING THROUGH
WEDNESDAY AFTERNOON...
THIS AFTERNOON
S WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SHOWERS AND TSTMS.
TONIGHT...SW WINDS 5 TO 10 KT
BECOMING NW LATE. WAVES 1 FT.
SHOWERS AND TSTMS.
WED
NW WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
WED NIGHT
NW WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
THU
NW WINDS 10 KT. WAVES 1 FT.
THU NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
NE WINDS AROUND 5 KT. WAVES 1 FT.
SAT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ537-290800-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
228 PM EDT TUE JUL 28 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY MORNING THROUGH
WEDNESDAY AFTERNOON...
THIS AFTERNOON
S WINDS 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SHOWERS AND TSTMS.
TONIGHT...S WINDS 10 TO 15 KT
BECOMING W 5 TO 10 KT AFTER
MIDNIGHT. GUSTS UP TO 20 KT. WAVES 1 TO 2 FT. SHOWERS AND TSTMS.
WED
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
WED NIGHT
NW WINDS 10 KT. WAVES 1 FT.
THU
NW WINDS 10 KT. WAVES 1 FT.
THU NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
NE WINDS AROUND 5 KT. WAVES 1 FT.
SAT...S WINDS AROUND 5 KT
BECOMING SE 10 TO 15 KT. WAVES 1 FT OR
LESS...BUILDING TO 1 TO 2 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ530-290800-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
228 PM EDT TUE JUL 28 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY MORNING THROUGH
WEDNESDAY AFTERNOON...
THIS AFTERNOON
S WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
SHOWERS WITH TSTMS LIKELY.
TONIGHT...S WINDS 5 TO 10 KT WITH GUSTS TO 20 KT
BECOMING NW
AFTER MIDNIGHT. WAVES 1 FT. SHOWERS WITH TSTMS LIKELY.
WED
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
WED NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
THU
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
THU NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
E WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SAT
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ531-290800-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
228 PM EDT TUE JUL 28 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY MORNING THROUGH
WEDNESDAY AFTERNOON...
THIS AFTERNOON
S WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
SHOWERS WITH TSTMS LIKELY.
TONIGHT...S WINDS 10 TO 15 KT
BECOMING NW 5 TO 10 KT AFTER
MIDNIGHT. GUSTS UP TO 20 KT. WAVES 1 TO 2 FT. SHOWERS WITH A CHANCE
OF TSTMS.
WED
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
WED NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
THU
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
THU NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT.
FRI...N WINDS 5 TO 10 KT
BECOMING S. WAVES 1 FT OR LESS.
SAT
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ538-290800-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
228 PM EDT TUE JUL 28 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY MORNING THROUGH
WEDNESDAY AFTERNOON...
THIS AFTERNOON
S WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SHOWERS AND TSTMS.
TONIGHT...S WINDS 5 TO 10 KT
BECOMING NW AFTER MIDNIGHT. WAVES
1 FT. SHOWERS AND TSTMS.
WED
NW WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
WED NIGHT
NW WINDS 10 KT. WAVES 1 FT.
THU
NW WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
THU NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
FRI
E WINDS AROUND 5 KT. WAVES FLAT.
SAT
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ539-290800-
CHESTER RIVER TO QUEENSTOWN MD-
228 PM EDT TUE JUL 28 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY MORNING THROUGH
WEDNESDAY AFTERNOON...
THIS AFTERNOON
S WINDS 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SHOWERS WITH TSTMS LIKELY.
TONIGHT...S WINDS 5 TO 10 KT WITH GUSTS TO 20 KT
BECOMING NW
AFTER MIDNIGHT. WAVES 1 TO 2 FT. SHOWERS WITH TSTMS LIKELY.
WED
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
WED NIGHT
NW WINDS 10 TO 15 KT. WAVES 2 FT.
THU
NW WINDS 10 TO 15 KT. WAVES 2 FT.
THU NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
E WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SAT
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ532-290800-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
228 PM EDT TUE JUL 28 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY MORNING THROUGH
WEDNESDAY AFTERNOON...
THIS AFTERNOON
S WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
SHOWERS AND TSTMS.
TONIGHT...S WINDS 10 TO 15 KT
BECOMING NW AFTER MIDNIGHT. GUSTS
UP TO 20 KT. WAVES 3 FT...SUBSIDING TO 1 FT AFTER MIDNIGHT. SHOWERS
AND TSTMS.
WED
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
WED NIGHT
NW WINDS 10 TO 15 KT. WAVES 2 FT.
THU
NW WINDS 10 TO 15 KT. WAVES 2 FT.
THU NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT.
FRI...N WINDS 5 TO 10 KT
BECOMING S. WAVES 1 FT OR LESS.
SAT...S WINDS 5 KT...INCREASING TO 10 TO 15 KT. WAVES FLAT
BUILDING TO 2 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ540-290800-
EASTERN BAY-
228 PM EDT TUE JUL 28 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY MORNING THROUGH
WEDNESDAY AFTERNOON...
THIS AFTERNOON
S WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
SHOWERS WITH TSTMS LIKELY.
TONIGHT...S WINDS 10 TO 15 KT
BECOMING NW 5 TO 10 KT AFTER
MIDNIGHT. GUSTS UP TO 20 KT. WAVES 1 FT. SHOWERS WITH TSTMS LIKELY.
WED
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
WED NIGHT
NW WINDS 10 TO 15 KT. WAVES 1 FT.
THU
NW WINDS 10 TO 15 KT. WAVES 1 FT.
THU NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
NE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SAT
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ533-290800-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
228 PM EDT TUE JUL 28 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY MORNING THROUGH
WEDNESDAY AFTERNOON...
THIS AFTERNOON
S WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
SHOWERS WITH TSTMS LIKELY.
TONIGHT...S WINDS 10 TO 15 KT
BECOMING W AFTER MIDNIGHT. GUSTS UP
TO 20 KT. WAVES 2 TO 3 FT. SHOWERS WITH TSTMS LIKELY.
WED
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
WED NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
THU
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
THU NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI...N WINDS 5 TO 10 KT
BECOMING SE. WAVES 1 FT.
SAT...S WINDS 5 KT...INCREASING TO 10 TO 15 KT. WAVES FLAT
BUILDING TO 2 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ541-290800-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
228 PM EDT TUE JUL 28 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY MORNING THROUGH
WEDNESDAY AFTERNOON...
THIS AFTERNOON
S WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
SHOWERS WITH TSTMS LIKELY.
TONIGHT...S WINDS 10 TO 15 KT
BECOMING W AFTER MIDNIGHT. GUSTS UP
TO 20 KT. WAVES 1 TO 2 FT. SHOWERS WITH TSTMS LIKELY.
WED
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
WED NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
THU
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
THU NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT.
FRI...N WINDS 5 TO 10 KT
BECOMING SE. WAVES 1 FT OR LESS.
SAT
S WINDS 10 TO 15 KT. WAVES 1 FT OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ542-290800-
PATUXENT RIVER TO BROOMES ISLAND MD-
228 PM EDT TUE JUL 28 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY MORNING THROUGH
WEDNESDAY AFTERNOON...
THIS AFTERNOON
S WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SHOWERS AND TSTMS.
TONIGHT...SW WINDS 5 TO 10 KT
BECOMING NW LATE. GUSTS UP TO
20 KT. WAVES 1 FT. SHOWERS AND TSTMS.
WED
NW WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
WED NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
THU
NW WINDS 5 TO 10 KT. WAVES 1 FT.
THU NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
NE WINDS AROUND 5 KT. WAVES 1 FT.
SAT
S WINDS 5 TO 10 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ534-290800-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
228 PM EDT TUE JUL 28 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY AFTERNOON
THIS AFTERNOON
S WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
SHOWERS AND TSTMS LIKELY.
TONIGHT...S WINDS 10 TO 15 KT
BECOMING NW LATE. GUSTS UP TO
25 KT. WAVES 2 TO 3 FT. SHOWERS WITH TSTMS LIKELY.
WED
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 TO 3 FT.
WED NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
THU
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
THU NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI...N WINDS 5 TO 10 KT
BECOMING S. WAVES 1 FT.
SAT...S WINDS 5 KT...INCREASING TO 10 TO 15 KT. WAVES 1 TO 2 FT
BUILDING TO 2 TO 3 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ543-290800-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
228 PM EDT TUE JUL 28 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY AFTERNOON
THIS AFTERNOON
S WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT. A
CHANCE OF SHOWERS AND TSTMS.
TONIGHT...S WINDS 10 TO 15 KT
BECOMING NW LATE. GUSTS UP TO
25 KT. WAVES 2 FT. SHOWERS WITH TSTMS LIKELY.
WED
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
WED NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
THU
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
THU NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI...N WINDS 5 TO 10 KT
BECOMING SE. WAVES 1 FT.
SAT
S WINDS 10 TO 15 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
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