305
FZUS51 KLWX 120301
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1100 PM EDT MON MAY 11 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.
ANZ500-120800-
1100 PM EDT MON MAY 11 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
AN EARLIER COLD FRONT WILL CONTINUE TO PULL WELL SOUTH OF THE AREA
TODAY AS WAVES OF LOW PRESSURE TRACK NEAR THE OUTER BANKS. HIGH
PRESSURE WILL BUILD IN FROM THE WEST ON TUESDAY BEFORE ANOTHER
FRONTAL SYSTEM APPROACHES WEDNESDAY INTO WEDNESDAY NIGHT. HIGH
PRESSURE WILL RETURN FRIDAY. SMALL CRAFT ADVISORIES MAY BE NEEDED AT
TIMES TONIGHT THROUGH TUESDAY MORNING AND AGAIN TUESDAY NIGHT
THROUGH FRIDAY.
ANZ535-120800-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
1100 PM EDT MON MAY 11 2026
REST OF TONIGHT
W WINDS 5 KT. WAVES LESS THAN 1 FT.
TUE
NW WINDS AROUND 5 KT. WAVES 1 FT.
TUE NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
WED
S WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT. SHOWERS
LIKELY.
WED NIGHT
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 FT. SHOWERS.
THU
NW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
THU NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
FRI...NW WINDS 10 TO 15 KT
BECOMING W AROUND 5 KT AFTER MIDNIGHT.
WAVES 1 FT.
SAT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ536-120800-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
1100 PM EDT MON MAY 11 2026
REST OF TONIGHT
W WINDS 5 KT. WAVES LESS THAN 1 FT.
TUE
E WINDS AROUND 5 KT. WAVES 1 FT.
TUE NIGHT
S WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE LATE
EVENING AND OVERNIGHT. WAVES 1 FT.
WED
SW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT. A
CHANCE OF SHOWERS.
WED NIGHT...S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING SW
5 TO 10 KT AFTER MIDNIGHT. WAVES 1 FT. SHOWERS.
THU
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
THU NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
FRI...NW WINDS 10 TO 15 KT
BECOMING W AROUND 5 KT AFTER MIDNIGHT.
WAVES 1 FT.
SAT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ537-120800-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
1100 PM EDT MON MAY 11 2026
REST OF TONIGHT...W WINDS 5 KT
BECOMING NW LATE. WAVES 1 FT OR
LESS.
TUE...N WINDS 5 TO 10 KT
BECOMING SE LATE. WAVES 1 FT.
TUE NIGHT...SE WINDS 10 TO 15 KT
BECOMING S LATE. GUSTS UP TO
20 KT. WAVES 1 TO 2 FT.
WED
S WINDS 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. A CHANCE OF
SHOWERS.
WED NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SHOWERS.
THU
NW WINDS 10 TO 15 KT. WAVES 1 FT.
THU NIGHT
NW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
FRI...NW WINDS 10 TO 15 KT
BECOMING W 5 KT AFTER MIDNIGHT. WAVES
1 TO 2 FT...SUBSIDING TO FLAT AFTER MIDNIGHT.
SAT
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
ANZ530-120800-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
1100 PM EDT MON MAY 11 2026
REST OF TONIGHT...NW WINDS 5 TO 10 KT
BECOMING N LATE. WAVES 1 FT
OR LESS.
TUE...N WINDS 5 TO 10 KT
BECOMING SW LATE. WAVES 1 FT.
TUE NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
WED
S WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 2 FT. SHOWERS
LIKELY.
WED NIGHT
SW WINDS 10 TO 15 KT. GUSTS UP TO 25 KT IN THE EVENING.
WAVES 1 TO 2 FT. SHOWERS.
THU
NW WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
THU NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
FRI...NW WINDS 10 TO 15 KT
BECOMING W AROUND 5 KT AFTER MIDNIGHT.
WAVES 1 FT.
SAT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ531-120800-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
1100 PM EDT MON MAY 11 2026
REST OF TONIGHT...NW WINDS 5 TO 10 KT
BECOMING N LATE. WAVES
1 FT.
TUE...NE WINDS 5 TO 10 KT
BECOMING S LATE. WAVES 1 FT.
TUE NIGHT...S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 1 FT
BUILDING TO 3 FT AFTER MIDNIGHT.
WED
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT. SHOWERS
LIKELY.
WED NIGHT...S WINDS 10 TO 15 KT WITH GUSTS TO 25 KT
BECOMING SW
5 TO 10 KT AFTER MIDNIGHT. WAVES 2 FT. SHOWERS.
THU
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
THU NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
FRI...NW WINDS 10 TO 15 KT
BECOMING W 5 KT AFTER MIDNIGHT. WAVES
1 TO 2 FT.
SAT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ538-120800-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
1100 PM EDT MON MAY 11 2026
REST OF TONIGHT
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
TUE
NE WINDS AROUND 5 KT. WAVES 1 FT.
TUE NIGHT
S WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE LATE
EVENING AND OVERNIGHT. WAVES 1 FT.
WED
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT. SHOWERS
LIKELY.
WED NIGHT...S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING SW
5 KT AFTER MIDNIGHT. WAVES 1 FT. SHOWERS.
THU
NW WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
THU NIGHT
NW WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
FRI
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SAT
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
ANZ539-120800-
CHESTER RIVER TO QUEENSTOWN MD-
1100 PM EDT MON MAY 11 2026
REST OF TONIGHT...W WINDS 5 TO 10 KT
BECOMING N LATE. WAVES 1 FT
OR LESS.
TUE...N WINDS 5 TO 10 KT
BECOMING S LATE. WAVES 1 FT OR LESS.
TUE NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 TO
2 FT.
WED
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT. SHOWERS
LIKELY.
WED NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT. SHOWERS.
THU
NW WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
THU NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
FRI...NW WINDS 10 TO 15 KT
BECOMING W 5 KT AFTER MIDNIGHT. WAVES
1 TO 2 FT.
SAT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ532-120800-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
1100 PM EDT MON MAY 11 2026
REST OF TONIGHT...W WINDS 5 TO 10 KT
BECOMING N LATE. WAVES 1 FT.
TUE...NE WINDS 5 TO 10 KT
BECOMING SE LATE. WAVES 1 FT.
TUE NIGHT
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 TO
3 FT.
WED
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT. A CHANCE
OF SHOWERS.
WED NIGHT...S WINDS 15 TO 20 KT
BECOMING SW 10 TO 15 KT AFTER
MIDNIGHT. WAVES 2 TO 3 FT. SHOWERS.
THU
NW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
THU NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
FRI...NW WINDS 10 TO 15 KT
BECOMING W 5 KT AFTER MIDNIGHT. WAVES
1 TO 2 FT.
SAT
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
ANZ540-120800-
EASTERN BAY-
1100 PM EDT MON MAY 11 2026
REST OF TONIGHT...W WINDS 5 TO 10 KT
BECOMING N LATE. WAVES 1 FT
OR LESS.
TUE...N WINDS 5 TO 10 KT
BECOMING S LATE. WAVES 1 FT OR LESS.
TUE NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 TO
2 FT.
WED
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT. A CHANCE
OF SHOWERS.
WED NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT. SHOWERS.
THU
NW WINDS 5 TO 10 KT. WAVES 1 FT.
THU NIGHT
NW WINDS 10 TO 15 KT. WAVES 1 FT.
FRI...NW WINDS 10 TO 15 KT
BECOMING W 5 KT AFTER MIDNIGHT. WAVES
1 TO 2 FT...SUBSIDING TO FLAT AFTER MIDNIGHT.
SAT
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
ANZ533-120800-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
1100 PM EDT MON MAY 11 2026
REST OF TONIGHT...W WINDS 5 TO 10 KT
BECOMING N LATE. WAVES 1 FT
OR LESS.
TUE...N WINDS 5 TO 10 KT
BECOMING SE LATE. WAVES 1 FT.
TUE NIGHT
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 TO
3 FT.
WED
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT. A CHANCE
OF SHOWERS.
WED NIGHT...S WINDS 15 TO 20 KT
BECOMING SW 10 TO 15 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. WAVES 2 TO 3 FT. SHOWERS.
THU
NW WINDS 10 TO 15 KT. WAVES 2 FT.
THU NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
FRI...NW WINDS 10 TO 15 KT
BECOMING W 5 KT AFTER MIDNIGHT. WAVES
1 TO 2 FT.
SAT
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
ANZ541-120800-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
1100 PM EDT MON MAY 11 2026
REST OF TONIGHT...W WINDS 5 TO 10 KT
BECOMING N LATE. WAVES 1 FT
OR LESS.
TUE...N WINDS 5 TO 10 KT
BECOMING SW LATE. WAVES 1 FT.
TUE NIGHT
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 1 TO
2 FT.
WED
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT. A CHANCE
OF SHOWERS.
WED NIGHT
S WINDS 15 TO 20 KT. WAVES 2 FT. SHOWERS.
THU
NW WINDS 10 TO 15 KT. WAVES 1 FT.
THU NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
FRI...NW WINDS 10 TO 15 KT
BECOMING W 5 KT. WAVES 1 TO 2 FT.
SAT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ542-120800-
PATUXENT RIVER TO BROOMES ISLAND MD-
1100 PM EDT MON MAY 11 2026
REST OF TONIGHT
W WINDS 5 KT. WAVES LESS THAN 1 FT.
TUE...N WINDS 5 TO 10 KT
BECOMING SE LATE. WAVES 1 FT.
TUE NIGHT
S WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE LATE
EVENING AND OVERNIGHT. WAVES 1 FT.
WED
S WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT. A CHANCE
OF SHOWERS.
WED NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SHOWERS.
THU
NW WINDS 5 TO 10 KT. WAVES 1 FT.
THU NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
W WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ534-120800-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
1100 PM EDT MON MAY 11 2026
REST OF TONIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TUE...N WINDS 5 TO 10 KT
BECOMING E LATE. WAVES 1 FT.
TUE NIGHT
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 TO
3 FT.
WED
S WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 3 FT. A CHANCE
OF SHOWERS.
WED NIGHT
S WINDS 20 TO 25 KT. GUSTS UP TO 30 KT IN THE EVENING.
WAVES 3 FT. SHOWERS.
THU
NW WINDS 10 TO 15 KT. WAVES 2 FT.
THU NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
FRI...NW WINDS 10 TO 15 KT
BECOMING W 5 TO 10 KT. WAVES 1 TO
2 FT.
SAT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ543-120800-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
1100 PM EDT MON MAY 11 2026
REST OF TONIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TUE...N WINDS 5 TO 10 KT
BECOMING W LATE. WAVES 1 FT.
TUE NIGHT
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 1 TO
2 FT.
WED
S WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 2 TO 3 FT. A
CHANCE OF SHOWERS.
WED NIGHT
S WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 2 TO
3 FT. SHOWERS.
THU
NW WINDS 10 TO 15 KT. WAVES 1 FT.
THU NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
FRI...NW WINDS 10 TO 15 KT
BECOMING W 5 TO 10 KT. WAVES 1 TO
2 FT.
SAT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
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