468
FZUS51 KLWX 100257
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1057 PM EDT SUN AUG 9 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.
ANZ500-100800-
1057 PM EDT SUN AUG 9 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
HIGH PRESSURE WILL BE PERSISTENT OFF THE EAST COAST INTO THE MIDDLE
OF THE WEEK. SHOWER AND THUNDERSTORM CHANCES TAKE A BRIEF REPRIEVE
TODAY BEFORE RETURNING MONDAY INTO MUCH OF THE UPCOMING WEEK. GUSTY
WINDS AND FREQUENT CLOUD TO GROUND LIGHTNING WILL BE THE PRIMARY
THREATS WITH ANY STORMS. SPECIAL MARINE WARNINGS WILL BE A
POSSIBILITY EACH DAY MONDAY THROUGH FRIDAY.
ANZ535-100800-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
1057 PM EDT SUN AUG 9 2026
REST OF TONIGHT
LIGHT WINDS. WAVES FLAT.
MON
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
MON NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
TUE
NW WINDS AROUND 5 KT. WAVES 1 FT. SHOWERS LIKELY.
TUE NIGHT
W WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS
AND TSTMS.
WED
W WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
WED NIGHT
SW WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
THU
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS THROUGH
THE NIGHT.
FRI
NW WINDS AROUND 5 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ536-100800-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
1057 PM EDT SUN AUG 9 2026
REST OF TONIGHT
SW WINDS AROUND 5 KT. WAVES FLAT.
MON
SW WINDS 5 TO 10 KT. WAVES 1 FT.
MON NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
NW WINDS AROUND 5 KT. WAVES 1 FT. SHOWERS LIKELY.
TUE NIGHT
W WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS
AND TSTMS.
WED
W WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
WED NIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF
SHOWERS AND TSTMS.
THU
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS THROUGH
THE NIGHT.
FRI
NW WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS
THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ537-100800-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
1057 PM EDT SUN AUG 9 2026
REST OF TONIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
MON
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
MON NIGHT...SW WINDS 5 TO 10 KT
BECOMING NW LATE. WAVES 1 FT.
TUE
NW WINDS 5 KT. WAVES LESS THAN 1 FT. SHOWERS LIKELY.
TUE NIGHT
W WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS
AND TSTMS.
WED
W WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
WED NIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF
SHOWERS AND TSTMS.
THU
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS THROUGH
THE NIGHT.
FRI
N WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS THROUGH
THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ530-100800-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
1057 PM EDT SUN AUG 9 2026
REST OF TONIGHT
LIGHT WINDS. WAVES FLAT.
MON...NW WINDS AROUND 5 KT
BECOMING SW IN THE AFTERNOON. WAVES
1 FT OR LESS. A CHANCE OF SHOWERS AND TSTMS.
MON NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
TUE
NW WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
TUE NIGHT
W WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF
SHOWERS.
WED
W WINDS 5 KT. WAVES FLAT. A CHANCE OF SHOWERS.
WED NIGHT
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS. SHOWERS
LIKELY WITH A CHANCE OF TSTMS.
THU
NW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
NW WINDS 5 TO 10 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ531-100800-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
1057 PM EDT SUN AUG 9 2026
REST OF TONIGHT
SW WINDS AROUND 5 KT. WAVES FLAT.
MON...W WINDS AROUND 5 KT
BECOMING S IN THE AFTERNOON. WAVES 1 FT
OR LESS. A CHANCE OF SHOWERS AND TSTMS.
MON NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
TUE
W WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY WITH A CHANCE
OF TSTMS.
TUE NIGHT
W WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF
SHOWERS.
WED
W WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS.
WED NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS.
THU
NW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
NW WINDS 5 TO 10 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ538-100800-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
1057 PM EDT SUN AUG 9 2026
REST OF TONIGHT
LIGHT WINDS. WAVES FLAT.
MON
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
AND TSTMS.
MON NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF
SHOWERS AND TSTMS.
TUE
NW WINDS 5 KT. WAVES LESS THAN 1 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS.
TUE NIGHT
W WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF
SHOWERS.
WED
W WINDS 5 KT. WAVES FLAT. A CHANCE OF SHOWERS.
WED NIGHT
SW WINDS 5 KT. WAVES FLAT. SHOWERS LIKELY.
THU
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS THROUGH
THE NIGHT.
FRI
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ539-100800-
CHESTER RIVER TO QUEENSTOWN MD-
1057 PM EDT SUN AUG 9 2026
REST OF TONIGHT
SW WINDS AROUND 5 KT. WAVES FLAT.
MON
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
AND TSTMS.
MON NIGHT...SW WINDS 5 TO 10 KT
BECOMING NW LATE. WAVES 1 FT. A
CHANCE OF SHOWERS AND TSTMS.
TUE
W WINDS 5 KT. WAVES LESS THAN 1 FT. SHOWERS LIKELY.
TUE NIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF
SHOWERS.
WED
W WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS.
WED NIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF
SHOWERS.
THU
NW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
NW WINDS 5 TO 10 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ532-100800-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
1057 PM EDT SUN AUG 9 2026
REST OF TONIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
MON...W WINDS AROUND 5 KT
BECOMING S IN THE AFTERNOON. WAVES 1 FT
OR LESS.
MON NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
TUE
NW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY.
TUE NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WED
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WED NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
THU
NW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
N WINDS 5 TO 10 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ540-100800-
EASTERN BAY-
1057 PM EDT SUN AUG 9 2026
REST OF TONIGHT
SW WINDS 5 KT. WAVES FLAT.
MON
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
MON NIGHT...SW WINDS 5 TO 10 KT
BECOMING NW LATE. WAVES 1 FT. A
CHANCE OF SHOWERS AND TSTMS.
TUE
NW WINDS 5 KT. WAVES LESS THAN 1 FT. SHOWERS LIKELY.
TUE NIGHT
W WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF
SHOWERS.
WED
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS.
WED NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
THU
NW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
NW WINDS 5 TO 10 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ533-100800-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
1057 PM EDT SUN AUG 9 2026
REST OF TONIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
MON...W WINDS AROUND 5 KT
BECOMING S IN THE AFTERNOON. WAVES 1 FT
OR LESS.
MON NIGHT...SW WINDS 5 TO 10 KT
BECOMING NW LATE. WAVES 1 FT.
TUE
NW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY.
TUE NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WED
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WED NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
THU
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS THROUGH
THE NIGHT.
FRI
N WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ541-100800-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
1057 PM EDT SUN AUG 9 2026
REST OF TONIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
MON
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
MON NIGHT...SW WINDS 5 TO 10 KT
BECOMING NW LATE. WAVES 1 FT. A
CHANCE OF SHOWERS.
TUE
NW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY.
TUE NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WED
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WED NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
THU
NW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
NW WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ542-100800-
PATUXENT RIVER TO BROOMES ISLAND MD-
1057 PM EDT SUN AUG 9 2026
REST OF TONIGHT
SW WINDS AROUND 5 KT. WAVES 1 FT.
MON
SW WINDS 5 TO 10 KT. WAVES 1 FT.
MON NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
NW WINDS 5 KT. WAVES LESS THAN 1 FT. SHOWERS LIKELY.
TUE NIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF
SHOWERS AND TSTMS.
WED
W WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WED NIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF
SHOWERS.
THU
NW WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS
THROUGH THE NIGHT.
FRI
N WINDS AROUND 5 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ534-100800-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
1057 PM EDT SUN AUG 9 2026
REST OF TONIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
MON
SW WINDS 5 TO 10 KT. WAVES 1 FT.
MON NIGHT...SW WINDS 10 KT
BECOMING NW LATE. WAVES 1 TO 2 FT.
TUE
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
TUE NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
WED
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WED NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS
AND TSTMS.
THU
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS THROUGH
THE NIGHT.
FRI
N WINDS 5 TO 10 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS
THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ543-100800-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
1057 PM EDT SUN AUG 9 2026
REST OF TONIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
MON
SW WINDS 5 TO 10 KT. WAVES 1 FT.
MON NIGHT...SW WINDS 10 TO 15 KT
BECOMING W 5 TO 10 KT AFTER
MIDNIGHT. WAVES 1 FT.
TUE
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
TUE NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WED
W WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
THU
NW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
N WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS THROUGH
THE NIGHT.
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