327
FZUS51 KLWX 210257
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1057 PM EDT SAT JUN 20 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.
ANZ500-210800-
1057 PM EDT SAT JUN 20 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
HIGH PRESSURE WILL BUILD NEAR THE AREA OVER THE WEEKEND BEFORE A
FRONTAL SYSTEM APPROACHES THE AREA MONDAY. SMALL CRAFT ADVISORIES
WILL LIKELY BE NEEDED FOR PORTIONS OF THE WATERS MONDAY INTO
TUESDAY. SPECIAL MARINE WARNINGS MAY BE NEEDED AS THUNDERSTORMS
TRACK OVER THE WATERS ON MONDAY.
ANZ535-210800-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
1057 PM EDT SAT JUN 20 2026
REST OF TONIGHT
W WINDS AROUND 5 KT. WAVES 1 FT.
SUN
W WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
NE WINDS AROUND 5 KT. WAVES 1 FT.
MON
S WINDS 10 TO 15 KT. GUSTS UP TO 25 KT. WAVES 1 FT. SHOWERS
WITH A CHANCE OF TSTMS.
MON NIGHT
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
TUE
NW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT.
WED
NE WINDS AROUND 5 KT. WAVES 1 FT.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS. A CHANCE
OF TSTMS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ536-210800-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
1057 PM EDT SAT JUN 20 2026
REST OF TONIGHT
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN
W WINDS AROUND 5 KT. WAVES 1 FT.
SUN NIGHT
E WINDS AROUND 5 KT. WAVES 1 FT.
MON
S WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 TO 2 FT.
SHOWERS WITH A CHANCE OF TSTMS.
MON NIGHT
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 FT. SHOWERS LIKELY.
TUE
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
TUE NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT.
WED
NE WINDS AROUND 5 KT. WAVES 1 FT.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ537-210800-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
1057 PM EDT SAT JUN 20 2026
REST OF TONIGHT
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
MON
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 TO 3 FT.
SHOWERS LIKELY WITH A CHANCE OF TSTMS.
MON NIGHT...S WINDS 15 TO 20 KT
BECOMING SW 5 TO 10 KT AFTER
MIDNIGHT. WAVES 2 TO 3 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
TUE
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
TUE NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT.
WED...N WINDS AROUND 5 KT
BECOMING SE. WAVES 1 FT.
THU...S WINDS AROUND 5 KT
BECOMING SE 10 TO 15 KT. WAVES 1 TO
2 FT. A CHANCE OF SHOWERS. A CHANCE OF TSTMS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ530-210800-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
1057 PM EDT SAT JUN 20 2026
REST OF TONIGHT
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN
W WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
N WINDS AROUND 5 KT. WAVES 1 FT.
MON
SE WINDS 10 TO 15 KT. GUSTS UP TO 25 KT. WAVES 1 TO 2 FT.
SHOWERS WITH A CHANCE OF TSTMS.
MON NIGHT
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 FT. SHOWERS WITH A CHANCE OF TSTMS.
TUE
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
TUE NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT.
WED
NE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ531-210800-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
1057 PM EDT SAT JUN 20 2026
REST OF TONIGHT
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN
W WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
NE WINDS AROUND 5 KT. WAVES 1 FT.
MON...SE WINDS 10 TO 15 KT
BECOMING S 15 TO 20 KT IN THE
AFTERNOON. GUSTS UP TO 25 KT. WAVES 2 TO 3 FT. SHOWERS WITH A CHANCE
OF TSTMS.
MON NIGHT...SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 3 FT
SUBSIDING TO 1 FT AFTER MIDNIGHT. SHOWERS WITH A CHANCE OF TSTMS.
TUE
NW WINDS 10 KT. WAVES 1 FT.
TUE NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT.
WED
NE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ538-210800-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
1057 PM EDT SAT JUN 20 2026
REST OF TONIGHT
W WINDS 5 KT. WAVES FLAT.
SUN
W WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
N WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
MON
SE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT. WAVES 1 FT. SHOWERS
WITH A CHANCE OF TSTMS.
MON NIGHT
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 FT. SHOWERS WITH A CHANCE OF TSTMS.
TUE
NW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WED
E WINDS AROUND 5 KT. WAVES FLAT.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ539-210800-
CHESTER RIVER TO QUEENSTOWN MD-
1057 PM EDT SAT JUN 20 2026
REST OF TONIGHT
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN
W WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN NIGHT
NE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
MON
S WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 TO 2 FT.
SHOWERS WITH A CHANCE OF TSTMS.
MON NIGHT
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 TO 2 FT. SHOWERS WITH A CHANCE OF TSTMS.
TUE
NW WINDS 10 KT. WAVES 1 FT.
TUE NIGHT
N WINDS 5 KT. WAVES LESS THAN 1 FT.
WED
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ532-210800-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
1057 PM EDT SAT JUN 20 2026
REST OF TONIGHT
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN
W WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT...S WINDS AROUND 5 KT
BECOMING SE LATE. WAVES 1 FT.
MON
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 TO 3 FT.
SHOWERS WITH A CHANCE OF TSTMS.
MON NIGHT...S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT
BECOMING SW
10 KT AFTER MIDNIGHT. WAVES 2 TO 3 FT. SHOWERS LIKELY WITH A CHANCE
OF TSTMS.
TUE
NW WINDS 10 KT. WAVES 1 FT.
TUE NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT.
WED...N WINDS 5 TO 10 KT
BECOMING SE. WAVES 1 FT OR LESS.
THU...S WINDS 5 KT
INCREASING TO 10 TO 15 KT. WAVES 1 TO 2 FT. A
CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ540-210800-
EASTERN BAY-
1057 PM EDT SAT JUN 20 2026
REST OF TONIGHT
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN
W WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN NIGHT
SE WINDS 5 KT. WAVES LESS THAN 1 FT.
MON
S WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 TO 2 FT.
SHOWERS WITH A CHANCE OF TSTMS.
MON NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
TUE
NW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT.
WED
E WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ533-210800-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
1057 PM EDT SAT JUN 20 2026
REST OF TONIGHT
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN
W WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
MON
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 TO 3 FT.
SHOWERS LIKELY WITH A CHANCE OF TSTMS.
MON NIGHT...S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT
BECOMING SW
10 KT AFTER MIDNIGHT. WAVES 2 TO 3 FT. SHOWERS LIKELY WITH A CHANCE
OF TSTMS.
TUE
NW WINDS 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
TUE NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT.
WED...N WINDS 5 TO 10 KT
BECOMING SE. WAVES 1 FT.
THU...S WINDS 5 KT
INCREASING TO 10 TO 15 KT. WAVES 1 TO 2 FT. A
CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ541-210800-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
1057 PM EDT SAT JUN 20 2026
REST OF TONIGHT
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN
W WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN NIGHT...S WINDS 5 KT
BECOMING SE LATE. WAVES 1 FT.
MON
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT. SHOWERS
LIKELY WITH A CHANCE OF TSTMS.
MON NIGHT...S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT
BECOMING SW
10 KT AFTER MIDNIGHT. WAVES 1 TO 2 FT. SHOWERS LIKELY WITH A CHANCE
OF TSTMS.
TUE
NW WINDS 10 KT. WAVES 1 FT.
TUE NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT.
WED...N WINDS AROUND 5 KT
BECOMING S AFTER MIDNIGHT. WAVES 1 FT
OR LESS.
THU
S WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ542-210800-
PATUXENT RIVER TO BROOMES ISLAND MD-
1057 PM EDT SAT JUN 20 2026
REST OF TONIGHT
W WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN
W WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN NIGHT
S WINDS AROUND 5 KT. WAVES 1 FT.
MON...S WINDS 5 TO 10 KT
INCREASING TO 15 KT WITH GUSTS TO 25 KT
IN THE AFTERNOON. WAVES 1 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
MON NIGHT
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
TUE
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
TUE NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT.
WED
E WINDS AROUND 5 KT. WAVES 1 FT.
THU
S 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.
ANZ534-210800-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
1057 PM EDT SAT JUN 20 2026
REST OF TONIGHT...SW WINDS 10 KT
BECOMING NW. WAVES 1 FT.
SUN
W WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
MON
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT. A CHANCE
OF SHOWERS.
MON NIGHT
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
SHOWERS LIKELY WITH A CHANCE OF TSTMS.
TUE
NW WINDS 10 KT. WAVES 2 FT. A CHANCE OF SHOWERS.
TUE NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT.
WED...N WINDS 5 TO 10 KT
BECOMING SE. WAVES 1 FT.
THU...S WINDS 5 KT
INCREASING TO 10 TO 15 KT. WAVES 1 TO 2 FT. A
CHANCE OF SHOWERS. A CHANCE OF TSTMS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ543-210800-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
1057 PM EDT SAT JUN 20 2026
REST OF TONIGHT...SW WINDS 10 KT
BECOMING NW LATE. WAVES 1 FT.
SUN...NW WINDS 5 TO 10 KT
BECOMING SW LATE. WAVES 1 FT.
SUN NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
MON
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 TO 3 FT. A
CHANCE OF SHOWERS.
MON NIGHT
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 TO
3 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
TUE
W WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
TUE NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT.
WED...NW WINDS 5 TO 10 KT
BECOMING S. WAVES 1 FT.
THU
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS. A
CHANCE OF TSTMS THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
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