873
FZUS51 KLWX 232057
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
457 PM EDT TUE JUN 23 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.
ANZ500-240800-
457 PM EDT TUE JUN 23 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
A LOW PRESSURE SYSTEM WILL TRACK ACROSS THE AREA THIS AFTERNOON.
HEAVY SHOWERS AND POSSIBLE STRONG TO SEVERE THUNDERSTORMS WILL
DEVELOP OVER CENTRAL AND SOUTHERN VIRGINIA AND MOVE TOWARD THE TIDAL
POTOMAC AND CENTRAL AND SOUTHERN CHESAPEAKE BAY THROUGH EARLY THIS
EVENING. SPECIAL MARINE WARNINGS MAY BE NEEDED WITHIN THE NEXT 4 TO
6 HOURS OVER THE WATERS. HIGH PRESSURE BUILDS INTO THE AREA TONIGHT
AND EARLY THURSDAY SUPPORTING FAIR WEATHER CONDITIONS. ANOTHER AREA
OF LOW PRESSURE WILL TRACK ACROSS THE AREA OVER THE WEEKEND BRINGING
ADDITIONAL SHOWERS AND THUNDERSTORMS.
ANZ535-240800-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
457 PM EDT TUE JUN 23 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
REST OF THIS AFTERNOON
N WINDS 15 KT WITH GUSTS TO 20 KT. WAVES
1 FT. SCATTERED SHOWERS WITH A CHANCE OF TSTMS.
TONIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
WED
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
WED NIGHT
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT.
THU NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS. SHOWERS LIKELY WITH
A CHANCE OF TSTMS.
SAT
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS. SHOWERS LIKELY. A
CHANCE OF TSTMS. A CHANCE OF SHOWERS AFTER MIDNIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ536-240800-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
457 PM EDT TUE JUN 23 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
REST OF THIS AFTERNOON
N WINDS 15 KT WITH GUSTS TO 20 KT. WAVES
1 FT. SCATTERED SHOWERS WITH A CHANCE OF TSTMS.
TONIGHT...N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING NW
5 TO 10 KT IN THE LATE EVENING AND OVERNIGHT. WAVES 1 FT.
WED
NW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT.
THU NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
S WINDS AROUND 5 KT. WAVES 1 FT. SHOWERS LIKELY WITH A CHANCE
OF TSTMS.
SAT
W WINDS AROUND 5 KT. WAVES 1 FT. SHOWERS LIKELY WITH A CHANCE
OF TSTMS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ537-240800-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
457 PM EDT TUE JUN 23 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY MORNING
REST OF THIS AFTERNOON
N WINDS 15 KT WITH GUSTS TO 25 KT. WAVES
2 FT. SHOWERS WITH A CHANCE OF TSTMS.
TONIGHT
N WINDS 10 TO 15 KT. GUSTS UP TO 25 KT IN THE EVENING.
WAVES 3 FT...SUBSIDING TO 1 FT AFTER MIDNIGHT. SCATTERED SHOWERS.
WED
NW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
S WINDS AROUND 5 KT. WAVES FLAT.
THU...S WINDS 5 KT
INCREASING TO 10 TO 15 KT WITH GUSTS TO 20 KT
IN THE AFTERNOON. WAVES FLAT...BUILDING TO 2 FT IN THE AFTERNOON.
THU NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
FRI
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
SAT
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS. SHOWERS LIKELY WITH
A CHANCE OF TSTMS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ530-240800-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
457 PM EDT TUE JUN 23 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
REST OF THIS AFTERNOON
N WINDS 15 KT WITH GUSTS TO 20 KT. WAVES
1 FT. SCATTERED SHOWERS WITH A CHANCE OF TSTMS.
TONIGHT
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT EARLY IN THE
EVENING. WAVES 1 FT.
WED
NW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
SW WINDS AROUND 5 KT. WAVES FLAT.
THU
S WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE AFTERNOON. WAVES
1 FT.
THU NIGHT
S WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
FRI
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
AND TSTMS IN THE AFTERNOON. SHOWERS WITH A CHANCE OF TSTMS THROUGH
THE NIGHT.
SAT
W WINDS AROUND 5 KT. WAVES FLAT. SHOWERS. A CHANCE OF TSTMS
THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ531-240800-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
457 PM EDT TUE JUN 23 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY MORNING
REST OF THIS AFTERNOON
N WINDS 15 KT WITH GUSTS TO 25 KT. WAVES
2 FT. NUMEROUS SHOWERS WITH A CHANCE OF TSTMS.
TONIGHT
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT EARLY IN THE
EVENING. WAVES 2 FT.
WED...N WINDS 5 TO 10 KT
BECOMING S LATE. WAVES 1 TO 2 FT.
WED NIGHT
S WINDS AROUND 5 KT. WAVES FLAT.
THU
S WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
WAVES 1 TO 2 FT.
THU NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
FRI
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
AND TSTMS IN THE AFTERNOON. SHOWERS WITH A CHANCE OF TSTMS THROUGH
THE NIGHT.
SAT
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS. SHOWERS. A CHANCE OF
TSTMS THROUGH THE NIGHT, THEN A CHANCE OF SHOWERS AFTER MIDNIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ538-240800-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
457 PM EDT TUE JUN 23 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
REST OF THIS AFTERNOON
N WINDS 15 KT WITH GUSTS TO 20 KT. WAVES
1 FT. SCATTERED SHOWERS WITH A CHANCE OF TSTMS.
TONIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT.
WED...NW WINDS 5 TO 10 KT
BECOMING S LATE. WAVES 1 FT.
WED NIGHT
SW WINDS AROUND 5 KT. WAVES FLAT.
THU
S WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE AFTERNOON. WAVES
1 FT OR LESS.
THU NIGHT
S WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
FRI
S WINDS AROUND 5 KT. WAVES FLAT. A CHANCE OF SHOWERS AND
TSTMS IN THE AFTERNOON. SHOWERS WITH A CHANCE OF TSTMS THROUGH THE
NIGHT.
SAT
W WINDS AROUND 5 KT. WAVES FLAT. SHOWERS. A CHANCE OF TSTMS
THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ539-240800-
CHESTER RIVER TO QUEENSTOWN MD-
457 PM EDT TUE JUN 23 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY MORNING
REST OF THIS AFTERNOON
N WINDS 15 KT WITH GUSTS TO 25 KT. WAVES
2 FT. NUMEROUS SHOWERS WITH A CHANCE OF TSTMS.
TONIGHT...N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
DIMINISHING TO
5 TO 10 KT IN THE LATE EVENING AND OVERNIGHT. WAVES 2 FT. SCATTERED
SHOWERS.
WED
NW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
S WINDS AROUND 5 KT. WAVES FLAT.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT.
THU NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
FRI...S WINDS 5 TO 10 KT
BECOMING SE. WAVES 1 FT OR LESS. A
CHANCE OF SHOWERS AND TSTMS IN THE AFTERNOON. SHOWERS WITH A CHANCE
OF TSTMS THROUGH THE NIGHT.
SAT
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS. SHOWERS. A CHANCE OF
TSTMS. A CHANCE OF SHOWERS AFTER MIDNIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ532-240800-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
457 PM EDT TUE JUN 23 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY MORNING
REST OF THIS AFTERNOON
N WINDS 15 KT WITH GUSTS TO 25 KT. WAVES
2 FT. SHOWERS WITH A CHANCE OF TSTMS.
TONIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
WED...N WINDS 5 TO 10 KT
BECOMING S LATE. WAVES 1 FT.
WED NIGHT
S WINDS 5 KT. WAVES FLAT.
THU
S WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
WAVES 1 TO 2 FT.
THU NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 3 FT.
FRI
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND TSTMS
IN THE AFTERNOON. SHOWERS LIKELY WITH A CHANCE OF TSTMS THROUGH THE
NIGHT.
SAT
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS. SHOWERS LIKELY. A
CHANCE OF TSTMS. A CHANCE OF SHOWERS AFTER MIDNIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ540-240800-
EASTERN BAY-
457 PM EDT TUE JUN 23 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY MORNING
REST OF THIS AFTERNOON
N WINDS 15 KT WITH GUSTS TO 25 KT. WAVES
2 FT. SHOWERS WITH A CHANCE OF TSTMS.
TONIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
SCATTERED SHOWERS.
WED...N WINDS 5 TO 10 KT
BECOMING SW LATE. WAVES 1 FT.
WED NIGHT
S WINDS AROUND 5 KT. WAVES FLAT.
THU
S WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
WAVES 1 FT.
THU NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
FRI...SW WINDS 5 TO 10 KT
BECOMING SE. WAVES 1 FT OR LESS. A
CHANCE OF SHOWERS AND TSTMS IN THE AFTERNOON. SHOWERS LIKELY WITH A
CHANCE OF TSTMS THROUGH THE NIGHT.
SAT
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS. SHOWERS LIKELY. A
CHANCE OF TSTMS. A CHANCE OF SHOWERS AFTER MIDNIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ533-240800-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
457 PM EDT TUE JUN 23 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY MORNING
REST OF THIS AFTERNOON
N WINDS 15 KT WITH GUSTS TO 25 KT. WAVES
3 FT. SHOWERS WITH A CHANCE OF TSTMS.
TONIGHT...N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT
DIMINISHING TO
10 TO 15 KT AFTER MIDNIGHT. WAVES 2 TO 3 FT. SCATTERED SHOWERS.
WED...N WINDS 5 TO 10 KT
BECOMING E LATE. WAVES 1 TO 2 FT.
WED NIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
THU
S WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
WAVES 1 TO 2 FT.
THU NIGHT
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
FRI
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND TSTMS
IN THE AFTERNOON. SHOWERS LIKELY WITH A CHANCE OF TSTMS THROUGH THE
NIGHT.
SAT...W WINDS 5 TO 10 KT
BECOMING NW AFTER MIDNIGHT. WAVES 1 FT
OR LESS. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ541-240800-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
457 PM EDT TUE JUN 23 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY MORNING
REST OF THIS AFTERNOON
N WINDS 20 KT WITH GUSTS TO 25 KT. WAVES
2 FT. SHOWERS WITH A CHANCE OF TSTMS.
TONIGHT
N WINDS 10 TO 15 KT. GUSTS UP TO 25 KT EARLY IN THE
EVENING. WAVES 1 TO 2 FT. SCATTERED SHOWERS.
WED...N WINDS 10 TO 15 KT
BECOMING NW AROUND 5 KT IN THE
AFTERNOON. WAVES 1 FT.
WED NIGHT
S WINDS AROUND 5 KT. WAVES FLAT.
THU
S WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
WAVES 1 FT.
THU NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
FRI
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND TSTMS
IN THE AFTERNOON. SHOWERS LIKELY WITH A CHANCE OF TSTMS THROUGH THE
NIGHT.
SAT
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS. SHOWERS LIKELY WITH
A CHANCE OF TSTMS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ542-240800-
PATUXENT RIVER TO BROOMES ISLAND MD-
457 PM EDT TUE JUN 23 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
REST OF THIS AFTERNOON
N WINDS 15 KT WITH GUSTS TO 20 KT. WAVES
1 FT. SHOWERS WITH A CHANCE OF TSTMS.
TONIGHT...N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING NW
5 TO 10 KT AFTER MIDNIGHT. WAVES 1 FT. SCATTERED SHOWERS.
WED...N WINDS 5 TO 10 KT
BECOMING NE LATE. WAVES 1 FT.
WED NIGHT
S WINDS AROUND 5 KT. WAVES 1 FT.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT.
THU NIGHT
S WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
FRI
S WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY WITH A CHANCE
OF TSTMS.
SAT
W WINDS AROUND 5 KT. WAVES 1 FT. SHOWERS LIKELY WITH A CHANCE
OF TSTMS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ534-240800-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
457 PM EDT TUE JUN 23 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY MORNING
REST OF THIS AFTERNOON
N WINDS 20 KT WITH GUSTS TO 25 KT. WAVES
3 FT. SHOWERS WITH A CHANCE OF TSTMS.
TONIGHT
N WINDS 15 TO 20 KT. GUSTS UP TO 25 KT UNTIL EARLY
MORNING. WAVES 4 FT...SUBSIDING TO 2 FT AFTER MIDNIGHT. SCATTERED
SHOWERS WITH A CHANCE OF TSTMS.
WED...N WINDS 10 TO 15 KT
BECOMING NW AROUND 5 KT LATE. WAVES
1 TO 2 FT.
WED NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
THU
S WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
WAVES 1 TO 2 FT.
THU NIGHT
S WINDS 15 TO 20 KT. WAVES 3 FT.
FRI...S WINDS 10 TO 15 KT
DIMINISHING TO 5 TO 10 KT. WAVES 2 FT.
A CHANCE OF SHOWERS AND TSTMS IN THE AFTERNOON. SHOWERS LIKELY WITH
A CHANCE OF TSTMS THROUGH THE NIGHT.
SAT
W WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY WITH A CHANCE
OF TSTMS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ543-240800-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
457 PM EDT TUE JUN 23 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH WEDNESDAY MORNING
REST OF THIS AFTERNOON
N WINDS 15 KT WITH GUSTS TO 25 KT. WAVES
2 FT. SHOWERS WITH A CHANCE OF TSTMS.
TONIGHT
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
SCATTERED SHOWERS WITH A CHANCE OF TSTMS.
WED...NW WINDS 10 TO 15 KT
BECOMING W 5 TO 10 KT LATE. WAVES
1 FT.
WED NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
THU
S WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
WAVES 1 FT.
THU NIGHT
S WINDS 15 TO 20 KT. WAVES 2 FT.
FRI
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS AND
TSTMS IN THE AFTERNOON. SHOWERS LIKELY WITH A CHANCE OF TSTMS
THROUGH THE NIGHT.
SAT
W WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY WITH A CHANCE
OF TSTMS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page