661
FZUS51 KLWX 180046
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
846 PM EDT SUN MAY 17 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.
ANZ500-180800-
846 PM EDT SUN MAY 17 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
HIGH PRESSURE CONTINUES TO STRENGTHEN WHILE MOVING FURTHER OFFSHORE
TODAY INTO MONDAY LIMITING SMALL CRAFT CONDITIONS. SMALL CRAFT
ADVISORIES RETURN MONDAY AND TUESDAY AS CHANNELING ENSUES AHEAD OF
AN INCOMING COLD FRONT MIDWEEK. THIS FRONT WILL BRING RENEWED
CHANCES FOR WIDESPREAD SHOWERS AND THUNDERSTORMS TO ALL WATERS
WEDNESDAY AFTERNOON. ADDITIONAL SHOWERS ARE POSSIBLE THURSDAY INTO
THE UPCOMING WEEKEND. SMALL CRAFT ADVISORIES MAY BE NEEDED AT TIMES
FOR PORTIONS OF THE WATERS WEDNESDAY THROUGH FRIDAY.
ANZ535-180800-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
846 PM EDT SUN MAY 17 2026
TONIGHT
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
MON
S WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
MON NIGHT
S WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 FT.
TUE
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
WAVES 1 FT.
TUE NIGHT
SW WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS WITH A CHANCE OF
TSTMS.
WED NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS.
THU
NE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
FRI
E WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ536-180800-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
846 PM EDT SUN MAY 17 2026
TONIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
MON
S WINDS 5 TO 10 KT. WAVES 1 FT.
MON NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE NIGHT
SW WINDS 10 KT. WAVES 1 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY WITH A CHANCE
OF TSTMS.
WED NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS WITH A CHANCE
OF TSTMS.
THU
NE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
FRI
E WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ537-180800-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
846 PM EDT SUN MAY 17 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY AFTERNOON THROUGH LATE
MONDAY NIGHT...
TONIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
MON...SW WINDS 5 KT
BECOMING SE 10 TO 15 KT WITH GUSTS TO 20 KT
IN THE AFTERNOON. WAVES 1 TO 2 FT.
MON NIGHT...S WINDS 10 TO 15 KT
BECOMING 10 KT LATE. GUSTS UP TO
20 KT. WAVES 1 TO 2 FT.
TUE
SW WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
TUE NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
WED
SW WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WED NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS WITH A CHANCE
OF TSTMS.
THU...NE WINDS 10 TO 15 KT
BECOMING E 5 TO 10 KT. WAVES 1 TO
2 FT. SHOWERS LIKELY .
FRI
E WINDS 5 TO 10 KT. WAVES 1 TO 2 FT. SHOWERS LIKELY THROUGH
THE DAY. A CHANCE OF SHOWERS THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ530-180800-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
846 PM EDT SUN MAY 17 2026
TONIGHT
SW WINDS AROUND 5 KT. WAVES FLAT.
MON
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
MON NIGHT
S WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
TUE
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
TUE NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS WITH A CHANCE OF
TSTMS.
WED NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY.
THU
NE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
THROUGH THE DAY. A CHANCE OF SHOWERS AFTER MIDNIGHT.
FRI
E WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ531-180800-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
846 PM EDT SUN MAY 17 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY AFTERNOON THROUGH LATE
MONDAY NIGHT...
TONIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
MON...S WINDS AROUND 5 KT
INCREASING TO 10 TO 15 KT WITH GUSTS TO
20 KT LATE. WAVES FLAT...BUILDING TO 2 FT IN THE AFTERNOON.
MON NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
TUE
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
TUE NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS WITH A CHANCE OF
TSTMS.
WED NIGHT
NW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER MIDNIGHT.
WAVES 1 TO 2 FT. SHOWERS LIKELY.
THU...NE WINDS 10 TO 15 KT...BECOMING E 5 KT. WAVES 1 TO 2 FT
SUBSIDING TO 1 FT OR LESS. A CHANCE OF SHOWERS.
FRI
E WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ538-180800-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
846 PM EDT SUN MAY 17 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY AFTERNOON THROUGH LATE
MONDAY NIGHT...
TONIGHT
S WINDS AROUND 5 KT. WAVES FLAT.
MON...SE WINDS AROUND 5 KT
INCREASING TO 10 KT WITH GUSTS TO
20 KT LATE. WAVES 1 FT OR LESS.
MON NIGHT...S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
DIMINISHING
TO 5 KT LATE. WAVES 1 FT.
TUE...SW WINDS 5 KT
BECOMING S 10 TO 15 KT WITH GUSTS TO 20 KT IN
THE AFTERNOON. WAVES 1 FT OR LESS.
TUE NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS WITH A CHANCE OF
TSTMS.
WED NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY.
THU
NE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS.
FRI
E WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ539-180800-
CHESTER RIVER TO QUEENSTOWN MD-
846 PM EDT SUN MAY 17 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY AFTERNOON THROUGH LATE
MONDAY NIGHT...
TONIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
MON
S WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT OR LESS.
MON NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
TUE
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
TUE NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS WITH A CHANCE OF
TSTMS.
WED NIGHT...NW WINDS 5 KT
BECOMING N 10 TO 15 KT AFTER MIDNIGHT.
WAVES 1 TO 2 FT. SHOWERS LIKELY.
THU...NE WINDS 10 TO 15 KT
BECOMING E AROUND 5 KT. WAVES 1 TO
2 FT...SUBSIDING TO FLAT. A CHANCE OF SHOWERS.
FRI
E WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ532-180800-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
846 PM EDT SUN MAY 17 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY AFTERNOON THROUGH LATE
MONDAY NIGHT...
TONIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
MON...S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES FLAT
BUILDING TO 2 FT IN THE AFTERNOON.
MON NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 TO
3 FT.
TUE
S WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
WAVES 1 TO 2 FT.
TUE NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS WITH A CHANCE OF
TSTMS.
WED NIGHT
NW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER MIDNIGHT.
WAVES 1 TO 2 FT. SHOWERS LIKELY.
THU...NE WINDS 10 TO 15 KT
BECOMING E 5 TO 10 KT. WAVES 1 TO
2 FT. A CHANCE OF SHOWERS.
FRI
E WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ540-180800-
EASTERN BAY-
846 PM EDT SUN MAY 17 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY AFTERNOON THROUGH LATE
MONDAY NIGHT...
TONIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
MON
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT OR LESS.
MON NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
TUE
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
TUE NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY WITH A CHANCE
OF TSTMS.
WED NIGHT...NW WINDS 5 KT
BECOMING N 10 TO 15 KT WITH GUSTS TO
20 KT AFTER MIDNIGHT. WAVES 1 FT. SHOWERS LIKELY.
THU...NE WINDS 10 TO 15 KT
BECOMING E AROUND 5 KT. WAVES 1 FT OR
LESS. A CHANCE OF SHOWERS.
FRI
E WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ533-180800-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
846 PM EDT SUN MAY 17 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY AFTERNOON THROUGH LATE
MONDAY NIGHT...
TONIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
MON
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
MON NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 TO
3 FT.
TUE
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
TUE NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 TO 2 FT. SHOWERS LIKELY.
WED NIGHT...NW WINDS 5 TO 10 KT
BECOMING N 15 TO 20 KT AFTER
MIDNIGHT. WAVES 1 TO 2 FT. SHOWERS WITH A CHANCE OF TSTMS.
THU...N WINDS 15 TO 20 KT
BECOMING NE 5 TO 10 KT. WAVES 2 TO
3 FT...SUBSIDING TO 1 FT. A CHANCE OF SHOWERS.
FRI
E WINDS 5 TO 10 KT. WAVES 1 TO 2 FT. SHOWERS LIKELY THROUGH
THE DAY, THEN A CHANCE OF SHOWERS IN THE EVENING. SHOWERS LIKELY
AFTER MIDNIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ541-180800-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
846 PM EDT SUN MAY 17 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY AFTERNOON THROUGH LATE
MONDAY NIGHT...
TONIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
MON...S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES FLAT
BUILDING TO 2 FT IN THE AFTERNOON.
MON NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
TUE
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
TUE NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY.
WED NIGHT
NW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER MIDNIGHT.
WAVES 1 TO 2 FT. SHOWERS WITH A CHANCE OF TSTMS.
THU...NE WINDS 10 TO 15 KT
BECOMING E 5 KT. WAVES 1 TO 2 FT.
SHOWERS LIKELY IN THE MORNING. A CHANCE OF SHOWERS.
FRI
E WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY THROUGH THE
DAY, THEN A CHANCE OF SHOWERS IN THE EVENING. SHOWERS LIKELY AFTER
MIDNIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ542-180800-
PATUXENT RIVER TO BROOMES ISLAND MD-
846 PM EDT SUN MAY 17 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY AFTERNOON THROUGH LATE
MONDAY NIGHT...
TONIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
MON
S WINDS 5 TO 10 KT. WAVES 1 FT.
MON NIGHT
S WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE NIGHT
S WINDS 10 KT. WAVES 1 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY.
WED NIGHT
N WINDS 5 TO 10 KT. GUSTS UP TO 20 KT AFTER MIDNIGHT.
WAVES 1 FT. SHOWERS WITH A CHANCE OF TSTMS.
THU...NE WINDS 10 TO 15 KT
BECOMING E AROUND 5 KT. WAVES 1 FT.
SHOWERS LIKELY THROUGH THE DAY. A CHANCE OF SHOWERS THROUGH THE
NIGHT.
FRI
E WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY THROUGH THE
DAY. A CHANCE OF SHOWERS THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ534-180800-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
846 PM EDT SUN MAY 17 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY AFTERNOON THROUGH LATE
MONDAY NIGHT...
TONIGHT
S WINDS 10 KT. WAVES 1 FT.
MON
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
MON NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 TO
3 FT.
TUE
S WINDS 10 TO 15 KT. GUSTS UP TO 25 KT IN THE AFTERNOON.
WAVES 2 TO 3 FT.
TUE NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
WED
S WINDS 10 TO 15 KT. WAVES 2 FT. A CHANCE OF SHOWERS.
WED NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SHOWERS WITH A CHANCE OF TSTMS.
THU...NE WINDS 10 TO 15 KT
BECOMING E 5 TO 10 KT. WAVES 1 TO
2 FT. SHOWERS LIKELY THROUGH THE DAY. A CHANCE OF SHOWERS THROUGH
THE NIGHT.
FRI...E WINDS 10 TO 15 KT
BECOMING SE AFTER MIDNIGHT. WAVES 2 FT.
SHOWERS LIKELY .
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ543-180800-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
846 PM EDT SUN MAY 17 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM MONDAY AFTERNOON THROUGH LATE
MONDAY NIGHT...
TONIGHT
S WINDS 10 KT. WAVES 1 FT.
MON
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
MON NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
TUE
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
TUE NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
WED
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. A CHANCE
OF SHOWERS.
WED NIGHT...W WINDS 10 TO 15 KT
BECOMING N 5 TO 10 KT AFTER
MIDNIGHT. WAVES 1 TO 2 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
THU...NE WINDS 10 TO 15 KT
BECOMING E 5 TO 10 KT. WAVES 1 FT.
SHOWERS LIKELY THROUGH THE DAY. A CHANCE OF SHOWERS THROUGH THE
NIGHT.
FRI...E WINDS 10 TO 15 KT
BECOMING SE AFTER MIDNIGHT. WAVES 1 FT.
SHOWERS LIKELY .
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page