643
FZUS51 KLWX 030628
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
227 AM EDT FRI JUL 3 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.
ANZ500-032000-
227 AM EDT FRI JUL 3 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
A BROAD AREA OF HOT HIGH PRESSURE WILL REMAIN NEAR THE MID-ATLANTIC
THROUGH THE HOLIDAY WEEKEND. THE CHANCE FOR STRONG THUNDERSTORMS
INCREASES THIS WEEKEND INTO EARLY NEXT WEEK, WITH SPECIAL MARINE
WARNINGS POSSIBLE. A FRONTAL ZONE WILL MEANDER NEARBY ON SUNDAY INTO
MONDAY, BEFORE DRIFTING SOUTH OF THE WATERS THEREAFTER.
ANZ535-032000-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
227 AM EDT FRI JUL 3 2026
OVERNIGHT
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
FRI
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
FRI NIGHT
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SAT
W WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
SAT NIGHT
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS. SHOWERS LIKELY
WITH A CHANCE OF TSTMS.
SUN
E WINDS AROUND 5 KT. WAVES 1 FT. SHOWERS LIKELY WITH A CHANCE
OF TSTMS.
SUN NIGHT
E WINDS AROUND 5 KT. WAVES 1 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS.
MON
E WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS IN THE
MORNING, THEN SHOWERS LIKELY WITH A CHANCE OF TSTMS.
TUE
N WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF TSTMS THROUGH
THE NIGHT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ536-032000-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
227 AM EDT FRI JUL 3 2026
OVERNIGHT
W WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI
W WINDS AROUND 5 KT. WAVES 1 FT.
FRI NIGHT
W WINDS AROUND 5 KT. WAVES 1 FT.
SAT
W WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
SAT NIGHT
SW WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS
AND TSTMS.
SUN
E WINDS AROUND 5 KT. WAVES 1 FT OR LESS. SHOWERS LIKELY WITH
A CHANCE OF TSTMS.
SUN NIGHT
E WINDS AROUND 5 KT. WAVES 1 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS.
MON...E WINDS 5 TO 10 KT
BECOMING SW AFTER MIDNIGHT. WAVES 1 FT.
A CHANCE OF SHOWERS IN THE MORNING, THEN SHOWERS LIKELY WITH A
CHANCE OF TSTMS.
TUE
N WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF TSTMS THROUGH
THE NIGHT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ537-032000-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
227 AM EDT FRI JUL 3 2026
OVERNIGHT
SW WINDS 10 KT. WAVES 1 FT.
FRI
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
FRI NIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
SAT
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SAT NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS
AND TSTMS.
SUN
SE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS.
SUN NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS.
MON
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS IN THE
MORNING, THEN SHOWERS LIKELY WITH A CHANCE OF TSTMS.
TUE...NW WINDS 5 KT
BECOMING NE. WAVES 1 FT. A CHANCE OF SHOWERS.
A CHANCE OF TSTMS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ530-032000-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
227 AM EDT FRI JUL 3 2026
OVERNIGHT
W WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI...W WINDS AROUND 5 KT
BECOMING SW LATE. WAVES 1 FT.
FRI NIGHT...W WINDS 5 TO 10 KT
BECOMING NW LATE. WAVES 1 FT.
SAT
W WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
W WINDS AROUND 5 KT. WAVES 1 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS.
SUN
E WINDS AROUND 5 KT. WAVES 1 FT. SHOWERS LIKELY WITH A CHANCE
OF TSTMS.
SUN NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS WITH A CHANCE
OF TSTMS.
MON
E WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS AND TSTMS LIKELY.
TUE
NE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS. A
CHANCE OF TSTMS THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ531-032000-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
227 AM EDT FRI JUL 3 2026
OVERNIGHT
W WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI...NW WINDS AROUND 5 KT
BECOMING S IN THE AFTERNOON. WAVES
1 FT OR LESS.
FRI NIGHT...SW WINDS 5 TO 10 KT
BECOMING NW LATE. WAVES 1 FT.
SAT
W WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
AND TSTMS.
SAT NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. SHOWERS LIKELY
WITH A CHANCE OF TSTMS.
SUN
E WINDS 5 KT. WAVES LESS THAN 1 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS.
SUN NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS WITH A CHANCE
OF TSTMS.
MON
E WINDS 5 TO 10 KT. WAVES 1 FT. TSTMS LIKELY THROUGH THE DAY.
SHOWERS LIKELY. A CHANCE OF TSTMS THROUGH THE NIGHT.
TUE
NE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS. A
CHANCE OF TSTMS THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ538-032000-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
227 AM EDT FRI JUL 3 2026
OVERNIGHT
W WINDS 5 KT. WAVES FLAT.
FRI...W WINDS AROUND 5 KT
BECOMING S LATE. WAVES 1 FT OR LESS.
FRI NIGHT
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SAT
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
AND TSTMS.
SAT NIGHT
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS. SHOWERS LIKELY
WITH A CHANCE OF TSTMS.
SUN
E WINDS AROUND 5 KT. WAVES 1 FT OR LESS. SHOWERS LIKELY WITH
A CHANCE OF TSTMS.
SUN NIGHT
E WINDS 5 KT. WAVES LESS THAN 1 FT. SHOWERS WITH A
CHANCE OF TSTMS.
MON
E WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS AND TSTMS LIKELY.
TUE
NE WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS. A
CHANCE OF TSTMS THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ539-032000-
CHESTER RIVER TO QUEENSTOWN MD-
227 AM EDT FRI JUL 3 2026
OVERNIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
FRI NIGHT
W WINDS 5 KT. WAVES LESS THAN 1 FT.
SAT
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SAT NIGHT
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS. SHOWERS LIKELY
WITH A CHANCE OF TSTMS.
SUN
E WINDS AROUND 5 KT. WAVES FLAT. SHOWERS LIKELY WITH A CHANCE
OF TSTMS.
SUN NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS WITH A CHANCE
OF TSTMS.
MON
E WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS IN THE
MORNING, THEN SHOWERS LIKELY WITH A CHANCE OF TSTMS.
TUE
NE WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ532-032000-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
227 AM EDT FRI JUL 3 2026
OVERNIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI...W WINDS AROUND 5 KT
BECOMING S LATE. WAVES 1 FT.
FRI NIGHT...SW WINDS 5 TO 10 KT
BECOMING NW LATE. WAVES 1 FT.
SAT...NW WINDS AROUND 5 KT
BECOMING S IN THE AFTERNOON. WAVES
1 FT OR LESS.
SAT NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS.
SUN
E WINDS 5 KT. WAVES LESS THAN 1 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS.
SUN NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS WITH A CHANCE
OF TSTMS.
MON
E WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS IN THE
MORNING, THEN SHOWERS LIKELY WITH A CHANCE OF TSTMS.
TUE
NE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS. A
CHANCE OF TSTMS THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ540-032000-
EASTERN BAY-
227 AM EDT FRI JUL 3 2026
OVERNIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI...W WINDS AROUND 5 KT
BECOMING S LATE. WAVES 1 FT OR LESS.
FRI NIGHT...SW WINDS 5 TO 10 KT
BECOMING NW LATE. WAVES 1 FT.
SAT
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SAT NIGHT
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS. SHOWERS LIKELY
WITH A CHANCE OF TSTMS.
SUN
E WINDS AROUND 5 KT. WAVES FLAT. SHOWERS LIKELY WITH A CHANCE
OF TSTMS.
SUN NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS WITH A CHANCE
OF TSTMS.
MON
E WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
IN THE MORNING, THEN SHOWERS LIKELY WITH A CHANCE OF TSTMS.
TUE
NE WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ533-032000-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
227 AM EDT FRI JUL 3 2026
OVERNIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI...NW WINDS AROUND 5 KT
BECOMING S LATE. WAVES 1 FT.
FRI NIGHT...SW WINDS 5 TO 10 KT
BECOMING NW LATE. WAVES 1 FT.
SAT...NW WINDS 5 KT
BECOMING S IN THE AFTERNOON. WAVES 1 FT OR
LESS.
SAT NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS
AND TSTMS.
SUN
E WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS.
SUN NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS.
MON
SE WINDS 5 TO 10 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS IN
THE MORNING, THEN SHOWERS LIKELY WITH A CHANCE OF TSTMS.
TUE...N WINDS 5 TO 10 KT
BECOMING NE. WAVES 1 FT. A CHANCE OF
SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ541-032000-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
227 AM EDT FRI JUL 3 2026
OVERNIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI
W WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT...SW WINDS 5 TO 10 KT
BECOMING NW LATE. WAVES 1 FT.
SAT
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SAT NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS.
SUN
SE WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
SUN NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS.
MON
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS IN THE
MORNING, THEN SHOWERS LIKELY WITH A CHANCE OF TSTMS.
TUE...NW WINDS 5 KT
BECOMING NE. WAVES 1 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ542-032000-
PATUXENT RIVER TO BROOMES ISLAND MD-
227 AM EDT FRI JUL 3 2026
OVERNIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI
NW WINDS AROUND 5 KT. WAVES 1 FT.
FRI NIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
SAT
W WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
SAT NIGHT
SW WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS
AND TSTMS.
SUN
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SUN NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS.
MON
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS IN THE
MORNING, THEN SHOWERS LIKELY WITH A CHANCE OF TSTMS.
TUE
N WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ534-032000-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
227 AM EDT FRI JUL 3 2026
OVERNIGHT
SW WINDS 10 KT. WAVES 1 FT.
FRI
W WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT...SW WINDS 5 TO 10 KT
BECOMING W LATE. WAVES 1 FT.
SAT...NW WINDS AROUND 5 KT
BECOMING SW IN THE AFTERNOON. WAVES
1 FT.
SAT NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS
AND TSTMS.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SUN NIGHT
SE WINDS 10 TO 15 KT. WAVES 2 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS.
MON...SE WINDS 10 TO 15 KT
BECOMING S 5 TO 10 KT AFTER MIDNIGHT.
WAVES 1 TO 2 FT. A CHANCE OF SHOWERS IN THE AFTERNOON. A CHANCE OF
TSTMS. SHOWERS LIKELY THROUGH THE NIGHT.
TUE...W WINDS 5 TO 10 KT
BECOMING E. WAVES 1 FT. A CHANCE OF
SHOWERS. A CHANCE OF TSTMS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ543-032000-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
227 AM EDT FRI JUL 3 2026
OVERNIGHT
SW WINDS 10 KT. WAVES 1 FT.
FRI
W WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
W WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS
AND TSTMS.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SUN NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS
AND TSTMS.
MON
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS IN THE
AFTERNOON. A CHANCE OF TSTMS. SHOWERS LIKELY THROUGH THE NIGHT.
TUE...W WINDS 5 TO 10 KT
BECOMING NE. WAVES 1 FT. A CHANCE OF
SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
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