251
FZUS51 KLWX 270133
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
933 PM EDT WED AUG 26 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.
ANZ500-270800-
933 PM EDT WED AUG 26 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
A COLD FRONT WILL APPROACH FROM THE NORTHWEST THURSDAY AND
EVENTUALLY PASS TO THE SOUTHEAST AND WEAKEN BY EARLY SATURDAY. HIGH
PRESSURE WILL BUILD NORTH OF THE AREA THIS WEEKEND. SMALL CRAFT
ADVISORIES ARE POSSIBLE AGAIN ON THURSDAY AFTERNOON AHEAD OF THE
FRONT, ALONG WITH THE POTENTIAL FOR GUSTY THUNDERSTORMS IN THE
AFTERNOON AND EVENING, WHICH MAY NECESSITATE SPECIAL MARINE
WARNINGS.
ANZ535-270800-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
933 PM EDT WED AUG 26 2026
REST OF TONIGHT
S WINDS 10 KT. WAVES 1 FT.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
THU NIGHT...S WINDS 5 TO 10 KT UNTIL EARLY MORNING
BECOMING
LIGHT. WAVES 1 FT. A CHANCE OF SHOWERS AND TSTMS. PATCHY FOG. VSBY
1 NM OR LESS.
FRI
NW WINDS AROUND 5 KT. WAVES 1 FT. PATCHY FOG.
FRI NIGHT
N WINDS AROUND 5 KT. WAVES 1 FT.
SAT
NE WINDS AROUND 5 KT. WAVES 1 FT.
SAT NIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SUN
S WINDS AROUND 5 KT. WAVES 1 FT.
MON
SW WINDS AROUND 5 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ536-270800-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
933 PM EDT WED AUG 26 2026
REST OF TONIGHT
S WINDS 15 KT. WAVES 1 FT.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
THU NIGHT...S WINDS 5 TO 10 KT
BECOMING W LATE. WAVES 1 FT. A
CHANCE OF SHOWERS AND TSTMS. PATCHY FOG. VSBY 1 NM OR LESS.
FRI
N WINDS AROUND 5 KT. WAVES 1 FT. PATCHY FOG.
FRI NIGHT
N WINDS AROUND 5 KT. WAVES 1 FT.
SAT
NE WINDS AROUND 5 KT. WAVES 1 FT.
SAT NIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SUN
S WINDS AROUND 5 KT. WAVES 1 FT.
MON
SW WINDS AROUND 5 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ537-270800-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
933 PM EDT WED AUG 26 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EDT THURSDAY
REST OF TONIGHT
S WINDS 15 TO 20 KT. WAVES 1 TO 2 FT.
THU
S WINDS 10 TO 15 KT. GUSTS UP TO 20 KT. WAVES 1 TO 2 FT. A
CHANCE OF SHOWERS AND TSTMS.
THU NIGHT...S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING SW
5 TO 10 KT AFTER MIDNIGHT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS AND
TSTMS.
FRI
NW WINDS AROUND 5 KT. WAVES 1 FT OR LESS. A CHANCE OF
SHOWERS.
FRI NIGHT
NE WINDS AROUND 5 KT. WAVES FLAT.
SAT
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
SAT NIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
MON
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ530-270800-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
933 PM EDT WED AUG 26 2026
REST OF TONIGHT
S WINDS 15 KT. WAVES 1 FT. A SLIGHT CHANCE OF
SHOWERS AND TSTMS.
THU
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT. SHOWERS
LIKELY WITH A CHANCE OF TSTMS.
THU NIGHT...S WINDS 5 TO 10 KT
BECOMING N LATE. WAVES 1 FT OR
LESS. SHOWERS LIKELY WITH A CHANCE OF TSTMS. PATCHY FOG. VSBY 1 TO
3 NM.
FRI
N WINDS AROUND 5 KT. WAVES FLAT. A CHANCE OF SHOWERS. PATCHY
FOG.
FRI NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SAT
NE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SAT NIGHT
SE WINDS AROUND 5 KT. WAVES FLAT.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
MON
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ531-270800-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
933 PM EDT WED AUG 26 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EDT THURSDAY
REST OF TONIGHT
S WINDS 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT. A
SLIGHT CHANCE OF SHOWERS AND TSTMS.
THU
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. A CHANCE
OF SHOWERS AND TSTMS.
THU NIGHT...S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING W
AROUND 5 KT AFTER MIDNIGHT. WAVES 1 TO 2 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS. PATCHY FOG. VSBY 1 NM OR LESS.
FRI
N WINDS AROUND 5 KT. WAVES FLAT.
FRI NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SAT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
MON
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ538-270800-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
933 PM EDT WED AUG 26 2026
REST OF TONIGHT
S WINDS 10 KT. WAVES 1 FT. A SLIGHT CHANCE OF
SHOWERS AND TSTMS.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
THU NIGHT...S WINDS 5 TO 10 KT UNTIL EARLY MORNING
BECOMING
LIGHT. WAVES 1 FT OR LESS. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
PATCHY FOG. VSBY 1 NM OR LESS.
FRI
N WINDS AROUND 5 KT. WAVES FLAT.
FRI NIGHT
N WINDS AROUND 5 KT. WAVES FLAT.
SAT
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
SAT NIGHT
SE WINDS AROUND 5 KT. WAVES FLAT.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
MON
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ539-270800-
CHESTER RIVER TO QUEENSTOWN MD-
933 PM EDT WED AUG 26 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EDT THURSDAY
REST OF TONIGHT
S WINDS 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
THU
S WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
THU NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
FRI
N WINDS AROUND 5 KT. WAVES FLAT.
FRI NIGHT
N WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SAT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
SE WINDS AROUND 5 KT. WAVES FLAT.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
MON
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ532-270800-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
933 PM EDT WED AUG 26 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EDT THURSDAY
REST OF TONIGHT
S WINDS 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
THU
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. A CHANCE
OF SHOWERS AND TSTMS.
THU NIGHT...S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING SW
5 KT LATE. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS AND TSTMS.
FRI
N WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SAT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN...S WINDS 10 TO 15 KT. WAVES 1 FT OR LESS
BUILDING TO 2 FT.
MON
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ540-270800-
EASTERN BAY-
933 PM EDT WED AUG 26 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EDT THURSDAY
REST OF TONIGHT
S WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 1 TO
2 FT.
THU
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A CHANCE
OF SHOWERS AND TSTMS.
THU NIGHT
S WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 FT. A CHANCE OF SHOWERS AND TSTMS.
FRI
NW WINDS 5 KT. WAVES FLAT.
FRI NIGHT
N WINDS AROUND 5 KT. WAVES FLAT.
SAT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
SE WINDS AROUND 5 KT. WAVES FLAT.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
MON
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ533-270800-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
933 PM EDT WED AUG 26 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EDT THURSDAY
REST OF TONIGHT
S WINDS 20 KT WITH GUSTS TO 25 KT. WAVES 2 TO
3 FT.
THU
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. A CHANCE
OF SHOWERS AND TSTMS.
THU NIGHT...S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING SW
5 KT LATE. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS AND TSTMS.
FRI
NW WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS.
FRI NIGHT
NE WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SAT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
S WINDS 10 TO 15 KT. WAVES 1 FT OR LESS.
MON
SW WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ541-270800-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
933 PM EDT WED AUG 26 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EDT THURSDAY
REST OF TONIGHT
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES
2 FT.
THU
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A CHANCE
OF SHOWERS AND TSTMS.
THU NIGHT...S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING SW
5 KT LATE. WAVES 1 FT. A CHANCE OF SHOWERS AND TSTMS.
FRI
NW WINDS 5 KT. WAVES FLAT. A CHANCE OF SHOWERS.
FRI NIGHT
NE WINDS AROUND 5 KT. WAVES FLAT.
SAT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
MON
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ542-270800-
PATUXENT RIVER TO BROOMES ISLAND MD-
933 PM EDT WED AUG 26 2026
REST OF TONIGHT
S WINDS 10 KT. WAVES 1 FT.
THU
S WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE AFTERNOON. WAVES
1 FT. A CHANCE OF SHOWERS AND TSTMS.
THU NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
FRI
NW WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
FRI NIGHT
NE WINDS AROUND 5 KT. WAVES 1 FT.
SAT
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
SAT NIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT.
MON
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ534-270800-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
933 PM EDT WED AUG 26 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EDT THURSDAY
REST OF TONIGHT
S WINDS 20 KT WITH GUSTS TO 25 KT. WAVES 2 TO
3 FT.
THU...S WINDS 10 TO 15 KT
BECOMING SE LATE. GUSTS UP TO 20 KT.
WAVES 2 FT.
THU NIGHT...S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING SW
5 TO 10 KT AFTER MIDNIGHT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS AND
TSTMS.
FRI
NW WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS.
FRI NIGHT
N WINDS 5 KT. WAVES LESS THAN 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 10 TO 15 KT
BECOMING SW AFTER MIDNIGHT. WAVES 1 TO
2 FT.
MON
SW WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ543-270800-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
933 PM EDT WED AUG 26 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EDT THURSDAY
REST OF TONIGHT
S WINDS 15 TO 20 KT. WAVES 2 FT.
THU
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
THU NIGHT...S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING SW
5 TO 10 KT AFTER MIDNIGHT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
FRI
NW WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS.
FRI NIGHT
N WINDS 5 KT. WAVES FLAT. A CHANCE OF SHOWERS.
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 OR LESS.
MON
SW WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
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