980
FZUS51 KLWX 301909
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
309 PM EDT SAT MAY 30 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.
ANZ500-310800-
309 PM EDT SAT MAY 30 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
HIGH PRESSURE WILL BUILD ACROSS THE AREA TONIGHT AND SUNDAY. A WEAK
FRONT WILL DROP THROUGH THE AREA MONDAY, WITH AN AREA OF LOW
PRESSURE POSSIBLY PASSING OFF THE COAST MIDWEEK. A SMALL CRAFT
ADVISORY MAY BE NEEDED FOR PORTIONS OF THE WATERS SUNDAY NIGHT AND
TUESDAY INTO WEDNESDAY.
ANZ535-310800-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
309 PM EDT SAT MAY 30 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
REST OF THIS AFTERNOON
N WINDS 15 KT WITH GUSTS TO 25 KT. WAVES
2 FT.
TONIGHT
N WINDS 5 TO 10 KT. GUSTS UP TO 20 KT EARLY IN THE
EVENING. WAVES 1 FT.
SUN
NW WINDS AROUND 5 KT. WAVES 1 FT.
SUN NIGHT
S WINDS AROUND 5 KT. WAVES 1 FT.
MON
N WINDS 5 TO 10 KT. WAVES 1 FT.
MON NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
NE WINDS 5 TO 10 KT. WAVES 1 FT.
WED
NE WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ536-310800-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
309 PM EDT SAT MAY 30 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
REST OF THIS AFTERNOON
N WINDS 10 KT WITH GUSTS TO 20 KT. WAVES
1 FT.
TONIGHT
N WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 FT.
SUN
NW WINDS AROUND 5 KT. WAVES 1 FT.
SUN NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
MON
NW WINDS 5 TO 10 KT. WAVES 1 FT.
MON NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
NE WINDS 5 TO 10 KT. WAVES 1 FT.
WED
NE WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ537-310800-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
309 PM EDT SAT MAY 30 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING
REST OF THIS AFTERNOON
N WINDS 15 KT WITH GUSTS TO 25 KT. WAVES
3 FT.
TONIGHT...NE WINDS 10 TO 15 KT WITH GUSTS TO 25 KT
BECOMING E
5 TO 10 KT AFTER MIDNIGHT. WAVES 2 TO 3 FT.
SUN
NW WINDS AROUND 5 KT. WAVES FLAT.
SUN NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
MON...W WINDS 5 TO 10 KT
BECOMING N IN THE AFTERNOON. WAVES 1 FT.
MON NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
TUE
NE WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
WED
NE WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
ANZ530-310800-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
309 PM EDT SAT MAY 30 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
REST OF THIS AFTERNOON
N WINDS 15 KT WITH GUSTS TO 25 KT. WAVES
2 FT.
TONIGHT
N WINDS 5 TO 10 KT. GUSTS UP TO 20 KT UNTIL EARLY
MORNING. WAVES 1 FT.
SUN
NW WINDS AROUND 5 KT. WAVES FLAT.
SUN NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
MON
N WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
MON NIGHT
E WINDS 5 KT. WAVES LESS THAN 1 FT.
TUE
NE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WED
NE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
ANZ531-310800-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
309 PM EDT SAT MAY 30 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
REST OF THIS AFTERNOON
N WINDS 15 KT WITH GUSTS TO 25 KT. WAVES
3 FT.
TONIGHT...NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
DIMINISHING
TO 5 KT LATE. WAVES 1 TO 2 FT.
SUN
NW WINDS AROUND 5 KT. WAVES FLAT.
SUN NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
MON
N WINDS AROUND 5 KT. WAVES 1 FT.
MON NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
NE WINDS 5 TO 10 KT. WAVES 1 FT.
WED
NE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
ANZ538-310800-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
309 PM EDT SAT MAY 30 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
REST OF THIS AFTERNOON
N WINDS 15 KT WITH GUSTS TO 25 KT. WAVES
2 FT.
TONIGHT
N WINDS 5 TO 10 KT. GUSTS UP TO 20 KT UNTIL EARLY
MORNING. WAVES 1 FT.
SUN
N WINDS AROUND 5 KT. WAVES FLAT.
SUN NIGHT
S WINDS AROUND 5 KT. WAVES FLAT.
MON
N WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
MON NIGHT
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
TUE
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
WED
NE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
ANZ539-310800-
CHESTER RIVER TO QUEENSTOWN MD-
309 PM EDT SAT MAY 30 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
REST OF THIS AFTERNOON
N WINDS 15 KT WITH GUSTS TO 25 KT. WAVES
3 FT.
TONIGHT
NE WINDS 5 TO 10 KT. GUSTS UP TO 20 KT UNTIL EARLY
MORNING. WAVES 1 TO 2 FT.
SUN
NW WINDS AROUND 5 KT. WAVES FLAT.
SUN NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
MON
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
MON NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
NE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WED
NE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
ANZ532-310800-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
309 PM EDT SAT MAY 30 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING
REST OF THIS AFTERNOON
N WINDS 15 KT WITH GUSTS TO 25 KT. WAVES
3 FT.
TONIGHT...NE WINDS 10 TO 15 KT WITH GUSTS TO 25 KT
DIMINISHING
TO 5 TO 10 KT AFTER MIDNIGHT. WAVES 3 FT...SUBSIDING TO 1 FT AFTER
MIDNIGHT.
SUN
NE WINDS 5 KT. WAVES FLAT.
SUN NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
MON
NW WINDS 5 TO 10 KT. WAVES 1 FT.
MON NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
NE WINDS 5 TO 10 KT. WAVES 1 FT.
WED
NE WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ540-310800-
EASTERN BAY-
309 PM EDT SAT MAY 30 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING
REST OF THIS AFTERNOON
N WINDS 15 KT WITH GUSTS TO 25 KT. WAVES
2 FT.
TONIGHT...NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
DIMINISHING
TO 5 TO 10 KT AFTER MIDNIGHT. WAVES 1 TO 2 FT.
SUN
NW WINDS AROUND 5 KT. WAVES FLAT.
SUN NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
MON
NW WINDS 5 TO 10 KT. WAVES 1 FT.
MON NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
NE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WED
NE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
ANZ533-310800-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
309 PM EDT SAT MAY 30 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING
REST OF THIS AFTERNOON
N WINDS 20 KT WITH GUSTS TO 25 KT. WAVES
4 FT...EXCEPT AROUND 2 FT NEAR THE MOUTH OF THE CHOPTANK.
TONIGHT...NE WINDS 10 TO 15 KT WITH GUSTS TO 25 KT
BECOMING E
5 TO 10 KT AFTER MIDNIGHT. WAVES 2 TO 3 FT.
SUN
NE WINDS AROUND 5 KT. WAVES FLAT.
SUN NIGHT
S WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
MON...W WINDS 5 TO 10 KT
BECOMING N IN THE AFTERNOON. WAVES 1 FT.
MON NIGHT
NE WINDS 10 KT. WAVES 1 FT.
TUE
NE WINDS 5 TO 10 KT. WAVES 1 FT.
WED
NE WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
ANZ541-310800-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
309 PM EDT SAT MAY 30 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING
REST OF THIS AFTERNOON
N WINDS 20 KT WITH GUSTS TO 25 KT. WAVES
2 FT.
TONIGHT...NE WINDS 10 TO 15 KT WITH GUSTS TO 25 KT
BECOMING E
5 TO 10 KT AFTER MIDNIGHT. WAVES 1 TO 2 FT.
SUN
NW WINDS AROUND 5 KT. WAVES FLAT.
SUN NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
MON...W WINDS 5 TO 10 KT
BECOMING N IN THE AFTERNOON. WAVES 1 FT.
MON NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
NE WINDS 5 TO 10 KT. WAVES 1 FT.
WED
NE WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ542-310800-
PATUXENT RIVER TO BROOMES ISLAND MD-
309 PM EDT SAT MAY 30 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
REST OF THIS AFTERNOON
N WINDS 15 KT WITH GUSTS TO 25 KT. WAVES
1 FT.
TONIGHT...NE WINDS 10 TO 15 KT WITH GUSTS TO 25 KT
BECOMING E
AROUND 5 KT AFTER MIDNIGHT. WAVES 1 FT.
SUN
N WINDS AROUND 5 KT. WAVES 1 FT.
SUN NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
MON...W WINDS 5 KT
BECOMING N IN THE AFTERNOON. WAVES 1 FT.
MON NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
NE WINDS 5 TO 10 KT. WAVES 1 FT.
WED
NE WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ534-310800-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
309 PM EDT SAT MAY 30 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING
REST OF THIS AFTERNOON
N WINDS 20 KT WITH GUSTS TO 30 KT. WAVES
4 FT.
TONIGHT...N WINDS 10 TO 15 KT WITH GUSTS TO 25 KT
BECOMING E
WITH GUSTS TO 20 KT IN THE LATE EVENING AND EARLY MORNING, THEN
BECOMING NE 5 KT LATE. WAVES 4 FT... SUBSIDING TO 2 FT AFTER
MIDNIGHT.
SUN
N WINDS AROUND 5 KT. WAVES FLAT.
SUN NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 TO
3 FT.
MON...SW WINDS 10 TO 15 KT
BECOMING N 5 TO 10 KT IN THE
AFTERNOON. WAVES 1 TO 2 FT.
MON NIGHT
NE WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
TUE
NE WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
WED
NE WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
ANZ543-310800-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
309 PM EDT SAT MAY 30 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 PM EDT THIS EVENING
REST OF THIS AFTERNOON
N WINDS 20 KT WITH GUSTS TO 25 KT. WAVES
2 FT.
TONIGHT...N WINDS 10 TO 15 KT WITH GUSTS TO 25 KT
BECOMING E
WITH GUSTS TO 20 KT IN THE LATE EVENING AND EARLY MORNING, THEN
BECOMING NE AROUND 5 KT LATE. WAVES 1 TO 2 FT.
SUN
NW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SUN NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
MON...SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING NW 5 TO
10 KT IN THE AFTERNOON. WAVES 1 TO 2 FT.
MON NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
NE WINDS 5 TO 10 KT. WAVES 1 FT.
WED
NE WINDS 5 TO 10 KT. WAVES 1 FT.
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