294
FZUS51 KLWX 101726
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
126 PM EDT MON AUG 10 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.
ANZ500-110800-
126 PM EDT MON AUG 10 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 RETURN TODAY AND
CONTINUE THROUGH 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
TODAY THROUGH FRIDAY.
ANZ535-110800-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
126 PM EDT MON AUG 10 2026
...SEVERE THUNDERSTORM WATCH 555 IN EFFECT UNTIL 9 PM EDT THIS
EVENING...
THIS AFTERNOON
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF
SHOWERS AND TSTMS.
TONIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
TUE
W WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
TUE NIGHT
W WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS
AND TSTMS.
WED
NW WINDS AROUND 5 KT. WAVES 1 FT.
WED NIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
THU
W WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS THROUGH
THE NIGHT.
FRI
N WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ536-110800-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
126 PM EDT MON AUG 10 2026
...SEVERE THUNDERSTORM WATCH 555 IN EFFECT UNTIL 9 PM EDT THIS
EVENING...
THIS AFTERNOON
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF
SHOWERS AND TSTMS.
TONIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
TUE
W WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
TUE NIGHT
W WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS
AND TSTMS.
WED
NW WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WED NIGHT
S WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
THU
W WINDS AROUND 5 KT. WAVES 1 FT.
FRI
N WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ537-110800-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
126 PM EDT MON AUG 10 2026
THIS AFTERNOON
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TONIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
W WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
TUE NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
WED
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WED NIGHT
SE WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF
SHOWERS.
THU
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI
N WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND TSTMS
THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ530-110800-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
126 PM EDT MON AUG 10 2026
...SEVERE THUNDERSTORM WATCH 555 IN EFFECT UNTIL 9 PM EDT THIS
EVENING...
THIS AFTERNOON
SW WINDS 5 KT. WAVES LESS THAN 1 FT. SHOWERS AND
TSTMS LIKELY.
TONIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
TUE
W WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
TUE NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS.
WED
NW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
SW WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
THU
W WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS. A
CHANCE OF TSTMS IN THE AFTERNOON.
FRI
N WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS THROUGH
THE DAY.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ531-110800-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
126 PM EDT MON AUG 10 2026
...SEVERE THUNDERSTORM WATCH 555 IN EFFECT UNTIL 9 PM EDT THIS
EVENING...
THIS AFTERNOON
S WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS AND TSTMS
LIKELY.
TONIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
TUE...W WINDS 5 TO 10 KT
BECOMING S LATE. WAVES 1 FT. A CHANCE OF
SHOWERS AND TSTMS.
TUE NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS.
WED
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WED NIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF
SHOWERS.
THU
W WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS IN
THE MORNING. A CHANCE OF SHOWERS THROUGH THE NIGHT.
FRI
N WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS THROUGH
THE DAY.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ538-110800-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
126 PM EDT MON AUG 10 2026
...SEVERE THUNDERSTORM WATCH 555 IN EFFECT UNTIL 9 PM EDT THIS
EVENING...
THIS AFTERNOON
S WINDS 5 KT. WAVES LESS THAN 1 FT. SHOWERS AND
TSTMS LIKELY.
TONIGHT
W WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS
AND TSTMS.
TUE
W 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. SHOWERS LIKELY WITH
A CHANCE OF TSTMS.
WED
NW WINDS 5 KT. WAVES FLAT.
WED NIGHT
SW WINDS 5 KT. WAVES FLAT. A CHANCE OF SHOWERS.
THU
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
IN THE MORNING. A CHANCE OF SHOWERS THROUGH THE NIGHT.
FRI
N WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
THROUGH THE DAY.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ539-110800-
CHESTER RIVER TO QUEENSTOWN MD-
126 PM EDT MON AUG 10 2026
...SEVERE THUNDERSTORM WATCH 555 IN EFFECT UNTIL 9 PM EDT THIS
EVENING...
THIS AFTERNOON
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF
SHOWERS AND TSTMS.
TONIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
TUE
W 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. SHOWERS LIKELY WITH
A CHANCE OF TSTMS.
WED
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WED NIGHT
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS. A CHANCE OF
SHOWERS.
THU
W WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS IN THE
MORNING. A CHANCE OF SHOWERS THROUGH THE NIGHT.
FRI
N WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
THROUGH THE DAY.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ532-110800-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
126 PM EDT MON AUG 10 2026
...SEVERE THUNDERSTORM WATCH 555 IN EFFECT UNTIL 9 PM EDT THIS
EVENING...
THIS AFTERNOON
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF
SHOWERS AND TSTMS.
TONIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
TUE...W WINDS 5 TO 10 KT
BECOMING S LATE. WAVES 1 FT. A CHANCE OF
SHOWERS AND TSTMS.
TUE NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS.
WED
NW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF
SHOWERS.
THU
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS IN THE
MORNING.
FRI
N WINDS 10 TO 15 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ540-110800-
EASTERN BAY-
126 PM EDT MON AUG 10 2026
...SEVERE THUNDERSTORM WATCH 555 IN EFFECT UNTIL 9 PM EDT THIS
EVENING...
THIS AFTERNOON
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE
OF SHOWERS AND TSTMS.
TONIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
TUE
W WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
TUE NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS.
WED
NW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS. A CHANCE OF
SHOWERS.
THU
W WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS IN
THE MORNING.
FRI
N WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
THROUGH THE DAY.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ533-110800-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
126 PM EDT MON AUG 10 2026
...SEVERE THUNDERSTORM WATCH 555 IN EFFECT UNTIL 9 PM EDT THIS
EVENING...
THIS AFTERNOON
S WINDS 5 TO 10 KT. WAVES 1 FT. A SLIGHT CHANCE OF
TSTMS.
TONIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
TUE...NW WINDS 5 TO 10 KT
BECOMING S LATE. WAVES 1 FT. A CHANCE
OF SHOWERS AND TSTMS.
TUE NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
WED
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WED NIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF
SHOWERS.
THU
W WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
N WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ541-110800-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
126 PM EDT MON AUG 10 2026
...SEVERE THUNDERSTORM WATCH 555 IN EFFECT UNTIL 9 PM EDT THIS
EVENING...
THIS AFTERNOON
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A SLIGHT
CHANCE OF TSTMS.
TONIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
TUE
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
TUE NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS.
WED
NW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
THU
W 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.
ANZ542-110800-
PATUXENT RIVER TO BROOMES ISLAND MD-
126 PM EDT MON AUG 10 2026
...SEVERE THUNDERSTORM WATCH 555 IN EFFECT UNTIL 9 PM EDT THIS
EVENING...
THIS AFTERNOON
S WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
W 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
AND TSTMS.
WED
NW WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS.
WED NIGHT
S WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
THU
SW WINDS AROUND 5 KT. WAVES 1 FT.
FRI
N WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND TSTMS
THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ534-110800-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
126 PM EDT MON AUG 10 2026
THIS AFTERNOON
S WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT...SW WINDS 10 KT
BECOMING W LATE. WAVES 1 FT.
TUE...NW WINDS 5 TO 10 KT
BECOMING S LATE. WAVES 1 FT.
TUE NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS
AND TSTMS.
WED
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WED NIGHT...E WINDS 5 KT
BECOMING S AFTER MIDNIGHT. WAVES 1 FT. A
CHANCE OF SHOWERS.
THU
SW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
N WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ543-110800-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
126 PM EDT MON AUG 10 2026
THIS AFTERNOON
SW WINDS 5 TO 10 KT. WAVES 1 FT.
TONIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE...NW WINDS 5 TO 10 KT
BECOMING SW LATE. WAVES 1 FT.
TUE NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS
AND TSTMS.
WED
NW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT...W WINDS 5 KT
BECOMING S AFTER MIDNIGHT. WAVES 1 FT. A
CHANCE OF SHOWERS.
THU
SW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
N WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND TSTMS
THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
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