214
FZUS51 KLWX 182357
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
757 PM EDT FRI SEP 18 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.
ANZ500-190800-
757 PM EDT FRI SEP 18 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
HIGH PRESSURE BRIEFLY WILL BUILD OVER THE NORTHEASTERN U.S. ON
SATURDAY BEFORE A FRONTAL SYSTEM LOOMS NEARBY ON SUNDAY AND INTO
EARLY NEXT WEEK. WIND GUSTS REMAIN ELEVATED AT TIMES SATURDAY NIGHT
THROUGH TUESDAY, WHICH MAY PROMPT SMALL CRAFT ADVISORIES.
ANZ535-190800-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
757 PM EDT FRI SEP 18 2026
TONIGHT
NE WINDS 10 KT. WAVES 1 FT.
SAT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SUN NIGHT...SW WINDS 5 TO 10 KT
BECOMING NW AFTER MIDNIGHT. WAVES
1 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
MON
NE WINDS 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
MON NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
TUE
NE WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS IN THE
MORNING, THEN SHOWERS LIKELY THROUGH THE NIGHT. A CHANCE OF SHOWERS
AFTER MIDNIGHT.
WED
NE WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ536-190800-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
757 PM EDT FRI SEP 18 2026
TONIGHT
NE WINDS 10 KT. WAVES 1 FT.
SAT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
MON
N WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
MON NIGHT
NE WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
TUE
NE WINDS 15 TO 20 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS IN
THE MORNING, THEN SHOWERS LIKELY THROUGH THE NIGHT. A CHANCE OF
SHOWERS AFTER MIDNIGHT.
WED
NE WINDS 10 TO 15 KT. WAVES 2 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ537-190800-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
757 PM EDT FRI SEP 18 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 5 AM EDT SATURDAY THROUGH
SATURDAY AFTERNOON...
...SMALL CRAFT ADVISORY IN EFFECT FROM SATURDAY AFTERNOON THROUGH
LATE SATURDAY NIGHT...
TONIGHT
NE WINDS 10 KT. WAVES 1 TO 2 FT.
SAT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SAT NIGHT...E WINDS 10 TO 15 KT
BECOMING SE LATE. GUSTS UP TO
20 KT. WAVES 2 FT.
SUN
S WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SUN NIGHT...S WINDS 10 TO 15 KT
BECOMING W 5 TO 10 KT AFTER
MIDNIGHT. GUSTS UP TO 20 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS.
MON
N WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT. A
CHANCE OF SHOWERS.
MON NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT. A
CHANCE OF SHOWERS.
TUE
NE WINDS 20 TO 25 KT. WAVES 4 FT. A CHANCE OF SHOWERS IN THE
MORNING. SHOWERS LIKELY THROUGH THE NIGHT, THEN A CHANCE OF SHOWERS
AFTER MIDNIGHT.
WED
NE WINDS 20 TO 25 KT. WAVES 5 FT. A CHANCE OF SHOWERS.
ANZ530-190800-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
757 PM EDT FRI SEP 18 2026
TONIGHT
N WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SAT...NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING E 5 TO
10 KT LATE. WAVES 1 FT.
SAT NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT. A
CHANCE OF SHOWERS.
SUN NIGHT...SW WINDS 5 TO 10 KT
BECOMING NW AFTER MIDNIGHT. WAVES
1 FT. SHOWERS LIKELY.
MON
NE WINDS 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
MON NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 1 TO
2 FT. A CHANCE OF SHOWERS.
TUE
NE WINDS 15 TO 20 KT. WAVES 2 FT. A CHANCE OF SHOWERS.
WED
NE WINDS 15 TO 20 KT. WAVES 2 FT. A CHANCE OF SHOWERS.
ANZ531-190800-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
757 PM EDT FRI SEP 18 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING
TONIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
SAT...NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING E 5 TO
10 KT LATE. WAVES 1 TO 2 FT.
SAT NIGHT
SE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
SUN
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. A CHANCE
OF SHOWERS.
SUN NIGHT...SW WINDS 10 TO 15 KT
BECOMING NW AFTER MIDNIGHT.
GUSTS UP TO 20 KT. WAVES 1 TO 2 FT. SHOWERS LIKELY.
MON
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. A
CHANCE OF SHOWERS.
MON NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 TO
3 FT. A CHANCE OF SHOWERS.
TUE
NE WINDS 20 TO 25 KT. WAVES 3 FT. A CHANCE OF SHOWERS.
WED
NE WINDS 20 TO 25 KT. WAVES 3 FT. A CHANCE OF SHOWERS.
ANZ538-190800-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
757 PM EDT FRI SEP 18 2026
TONIGHT
N WINDS 10 KT. WAVES 1 FT.
SAT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
SE WINDS 10 KT. WAVES 1 FT.
SUN
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A CHANCE
OF SHOWERS.
SUN NIGHT...SW WINDS 5 TO 10 KT
BECOMING NW AFTER MIDNIGHT. WAVES
1 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
MON
NE WINDS 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
MON NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 TO
2 FT. A CHANCE OF SHOWERS.
TUE
NE WINDS 15 TO 20 KT. WAVES 2 FT. A CHANCE OF SHOWERS.
WED
NE WINDS 15 TO 20 KT. WAVES 2 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ539-190800-
CHESTER RIVER TO QUEENSTOWN MD-
757 PM EDT FRI SEP 18 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING
TONIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
SAT...NE WINDS 10 TO 15 KT
BECOMING E 5 TO 10 KT LATE. GUSTS UP
TO 20 KT. WAVES 1 TO 2 FT.
SAT NIGHT
SE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SUN
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SUN NIGHT...SW WINDS 10 TO 15 KT
BECOMING NW AFTER MIDNIGHT.
GUSTS UP TO 20 KT. WAVES 1 TO 2 FT. SHOWERS LIKELY.
MON
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. A
CHANCE OF SHOWERS.
MON NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 1 TO
2 FT. A CHANCE OF SHOWERS.
TUE
NE WINDS 15 TO 20 KT. WAVES 2 FT. A CHANCE OF SHOWERS.
WED
NE WINDS 15 TO 20 KT. WAVES 2 FT. A CHANCE OF SHOWERS.
ANZ532-190800-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
757 PM EDT FRI SEP 18 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING
TONIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
SAT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
SAT NIGHT
SE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SUN
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SUN NIGHT...S WINDS 10 KT
BECOMING NW AFTER MIDNIGHT. GUSTS UP TO
20 KT. WAVES 1 TO 2 FT. SHOWERS LIKELY.
MON
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. A
CHANCE OF SHOWERS.
MON NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 TO
3 FT. A CHANCE OF SHOWERS.
TUE
NE WINDS 20 TO 25 KT. WAVES 3 FT. A CHANCE OF SHOWERS.
WED
NE WINDS 20 TO 25 KT. WAVES 4 FT. A CHANCE OF SHOWERS.
ANZ540-190800-
EASTERN BAY-
757 PM EDT FRI SEP 18 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING
TONIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
SAT...NE WINDS 10 TO 15 KT
BECOMING E LATE. GUSTS UP TO 20 KT.
WAVES 1 TO 2 FT.
SAT NIGHT
SE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SUN
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
SUN NIGHT...S WINDS 10 TO 15 KT
BECOMING NW AFTER MIDNIGHT. GUSTS
UP TO 20 KT. WAVES 1 TO 2 FT. SHOWERS LIKELY.
MON
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. A
CHANCE OF SHOWERS.
MON NIGHT
NE WINDS 15 TO 20 KT. WAVES 1 TO 2 FT. A CHANCE OF
SHOWERS.
TUE
NE WINDS 15 TO 20 KT. WAVES 2 FT. A CHANCE OF SHOWERS.
WED
NE WINDS 20 TO 25 KT. WAVES 2 TO 3 FT. A CHANCE OF SHOWERS.
ANZ533-190800-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
757 PM EDT FRI SEP 18 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING
TONIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
SAT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SAT NIGHT
SE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SUN
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SUN NIGHT...S WINDS 10 TO 15 KT
BECOMING W AFTER MIDNIGHT. GUSTS
UP TO 20 KT. WAVES 1 TO 2 FT. SHOWERS LIKELY.
MON
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. A CHANCE
OF SHOWERS.
MON NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 TO
3 FT. A CHANCE OF SHOWERS.
TUE
NE WINDS 25 TO 30 KT. WAVES 4 FT. A CHANCE OF SHOWERS.
WED
NE WINDS 25 TO 30 KT. WAVES 4 FT. A CHANCE OF SHOWERS.
ANZ541-190800-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
757 PM EDT FRI SEP 18 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH SATURDAY MORNING
TONIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
SAT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
SAT NIGHT
SE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SUN
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SUN NIGHT...S WINDS 10 TO 15 KT
BECOMING W AFTER MIDNIGHT. GUSTS
UP TO 20 KT. WAVES 1 TO 2 FT. SHOWERS LIKELY.
MON
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT. A
CHANCE OF SHOWERS.
MON NIGHT
NE WINDS 15 TO 20 KT. WAVES 2 FT. A CHANCE OF SHOWERS.
TUE
NE WINDS 20 TO 25 KT. WAVES 2 TO 3 FT. A CHANCE OF SHOWERS.
WED
NE WINDS 20 TO 25 KT. WAVES 3 FT. A CHANCE OF SHOWERS.
ANZ542-190800-
PATUXENT RIVER TO BROOMES ISLAND MD-
757 PM EDT FRI SEP 18 2026
TONIGHT
NE WINDS 10 KT. WAVES 1 FT.
SAT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
SE WINDS 10 KT. WAVES 1 FT.
SUN
S WINDS 10 KT. WAVES 1 FT.
SUN NIGHT...S WINDS 10 KT
BECOMING W AFTER MIDNIGHT. WAVES 1 FT.
A CHANCE OF SHOWERS.
MON
N WINDS 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
MON NIGHT
NE WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A
CHANCE OF SHOWERS.
TUE
NE WINDS 15 TO 20 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WED
NE WINDS 15 TO 20 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
ANZ534-190800-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
757 PM EDT FRI SEP 18 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 5 AM EDT SATURDAY THROUGH
SATURDAY AFTERNOON...
...SMALL CRAFT ADVISORY IN EFFECT FROM SATURDAY AFTERNOON THROUGH
LATE SATURDAY NIGHT...
TONIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SAT
NE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT. WAVES 2 FT.
SAT NIGHT
E WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SUN
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 TO 3 FT.
SUN NIGHT...S WINDS 10 TO 15 KT
BECOMING W AFTER MIDNIGHT. GUSTS
UP TO 20 KT. WAVES 2 TO 3 FT. A CHANCE OF SHOWERS.
MON
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. A CHANCE
OF SHOWERS AND TSTMS.
MON NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT. A
CHANCE OF SHOWERS.
TUE
NE WINDS 20 TO 25 KT. WAVES 4 FT. A CHANCE OF SHOWERS.
WED
NE WINDS 25 TO 30 KT. WAVES 5 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ543-190800-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
757 PM EDT FRI SEP 18 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 5 AM EDT SATURDAY THROUGH
SATURDAY AFTERNOON...
...SMALL CRAFT ADVISORY IN EFFECT FROM SATURDAY AFTERNOON THROUGH
LATE SATURDAY NIGHT...
TONIGHT
NE WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SAT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
SAT NIGHT
E WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
SUN
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
SUN NIGHT...S WINDS 10 TO 15 KT
BECOMING SW AFTER MIDNIGHT. GUSTS
UP TO 20 KT. WAVES 2 FT. A CHANCE OF SHOWERS.
MON
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A CHANCE
OF SHOWERS AND TSTMS.
MON NIGHT
NE WINDS 15 TO 20 KT. WAVES 2 FT. A CHANCE OF SHOWERS.
TUE
NE WINDS 20 TO 25 KT. WAVES 2 TO 3 FT. A CHANCE OF SHOWERS.
WED
NE WINDS 20 TO 25 KT. WAVES 3 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
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