265
FZUS51 KLWX 171911
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
311 PM EDT FRI JUL 17 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.
ANZ500-180800-
311 PM EDT FRI JUL 17 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
A FRONT WILL RETURN NORTHWARD AS A WARM FRONT LATE TONIGHT INTO
SATURDAY MORNING. A STRONGER COLD FRONT WILL DROP THROUGH THE REGION
SATURDAY NIGHT INTO SUNDAY. HIGH PRESSURE WILL BUILD NORTH OF THE
AREA MONDAY. SMALL CRAFT ADVISORIES MAY BE NEEDED FOR PORTIONS OF
THE WATERS THROUGH SATURDAY NIGHT, AND AGAIN MONDAY NIGHT INTO
TUESDAY. SPECIAL MARINE WARNINGS WILL LIKELY BE NEEDED SATURDAY
AFTERNOON AND EVENING.
ANZ535-180800-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
311 PM EDT FRI JUL 17 2026
REST OF THIS AFTERNOON
W WINDS 5 KT. WAVES LESS THAN 1 FT. SMOKE.
TONIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT. SMOKE.
SAT
SW WINDS 5 TO 10 KT. GUSTS UP TO 25 KT. WAVES 1 FT. SHOWERS
LIKELY WITH A CHANCE OF TSTMS. AREAS OF SMOKE. VSBY 1 NM OR LESS.
SAT NIGHT
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 FT. SHOWERS AND TSTMS LIKELY.
SUN
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
NE WINDS AROUND 5 KT. WAVES 1 FT.
MON...SE WINDS 5 TO 10 KT
BECOMING S AFTER MIDNIGHT. WAVES 1 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS IN THE AFTERNOON. SHOWERS LIKELY WITH A CHANCE OF TSTMS
THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ536-180800-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
311 PM EDT FRI JUL 17 2026
REST OF THIS AFTERNOON
SE WINDS 5 KT. WAVES LESS THAN 1 FT.
SMOKE.
TONIGHT
SE WINDS 5 KT. WAVES LESS THAN 1 FT. SMOKE.
SAT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT. SHOWERS
LIKELY WITH A CHANCE OF TSTMS. AREAS OF SMOKE.
SAT NIGHT
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 FT. SHOWERS AND TSTMS LIKELY.
SUN
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
NE WINDS AROUND 5 KT. WAVES 1 FT.
MON...SE WINDS 5 TO 10 KT
BECOMING S AFTER MIDNIGHT. WAVES 1 FT.
A CHANCE OF SHOWERS AND TSTMS THROUGH THE NIGHT.
TUE
SW WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS THROUGH THE NIGHT. SHOWERS LIKELY WITH A CHANCE OF TSTMS AFTER
MIDNIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ537-180800-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
311 PM EDT FRI JUL 17 2026
REST OF THIS AFTERNOON
E WINDS 5 KT. WAVES FLAT. SMOKE.
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. SMOKE.
SAT
S WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE LATE MORNING
AND AFTERNOON. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS AND TSTMS. AREAS
OF SMOKE.
SAT NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT. A CHANCE OF SHOWERS AND TSTMS.
SUN
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SUN NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
MON...SE WINDS 5 TO 10 KT
BECOMING S AFTER MIDNIGHT. WAVES 1 FT.
A CHANCE OF SHOWERS AND TSTMS THROUGH THE NIGHT.
TUE
SW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS
AND TSTMS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ530-180800-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
311 PM EDT FRI JUL 17 2026
REST OF THIS AFTERNOON
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
SMOKE.
TONIGHT
S WINDS AROUND 5 KT. WAVES 1 FT. SMOKE.
SAT
S WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE LATE MORNING AND
AFTERNOON. WAVES 1 TO 2 FT. SHOWERS WITH TSTMS LIKELY. AREAS OF
SMOKE. VSBY 1 NM OR LESS.
SAT NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS AND TSTMS
LIKELY.
SUN
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
MON
SE WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS IN
THE AFTERNOON. A CHANCE OF TSTMS. SHOWERS LIKELY THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ531-180800-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
311 PM EDT FRI JUL 17 2026
REST OF THIS AFTERNOON
E WINDS 5 KT. WAVES FLAT. SMOKE.
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. SMOKE.
SAT
S WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE LATE MORNING
AND AFTERNOON. WAVES 1 TO 2 FT. SHOWERS WITH TSTMS LIKELY. AREAS OF
SMOKE. VSBY 1 NM OR LESS.
SAT NIGHT
SW WINDS 10 KT. WAVES 1 FT. SHOWERS WITH TSTMS LIKELY.
SUN
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
MON...SE WINDS 5 TO 10 KT
BECOMING S AFTER MIDNIGHT. WAVES 1 FT.
TUE
S WINDS 15 TO 20 KT. WAVES 2 FT. A CHANCE OF SHOWERS IN THE
AFTERNOON. A CHANCE OF TSTMS. SHOWERS LIKELY THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ538-180800-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
311 PM EDT FRI JUL 17 2026
REST OF THIS AFTERNOON
SE WINDS 5 KT. WAVES FLAT. SMOKE.
TONIGHT
S WINDS AROUND 5 KT. WAVES FLAT. SMOKE.
SAT
S WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS WITH TSTMS LIKELY.
AREAS OF SMOKE. VSBY 1 NM OR LESS.
SAT NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS AND TSTMS
LIKELY.
SUN
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
MON...SE WINDS 5 TO 10 KT
BECOMING S AFTER MIDNIGHT. WAVES 1 FT
OR LESS.
TUE
S WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS IN THE
AFTERNOON. A CHANCE OF TSTMS. SHOWERS LIKELY THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ539-180800-
CHESTER RIVER TO QUEENSTOWN MD-
311 PM EDT FRI JUL 17 2026
REST OF THIS AFTERNOON
NE WINDS 5 KT. WAVES FLAT. SMOKE.
TONIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS. SMOKE.
SAT
S WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE LATE MORNING AND
AFTERNOON. WAVES 1 FT. SHOWERS WITH TSTMS LIKELY. AREAS OF SMOKE.
VSBY 1 NM OR LESS.
SAT NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS WITH TSTMS
LIKELY.
SUN
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
NE WINDS AROUND 5 KT. WAVES 1 FT.
MON
SE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TUE
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS IN
THE AFTERNOON. A CHANCE OF TSTMS. SHOWERS LIKELY THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ532-180800-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
311 PM EDT FRI JUL 17 2026
REST OF THIS AFTERNOON
E WINDS 5 KT. WAVES FLAT. SMOKE.
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. SMOKE.
SAT
S WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE LATE MORNING
AND AFTERNOON. WAVES 1 TO 2 FT. SHOWERS WITH TSTMS LIKELY. AREAS OF
SMOKE. VSBY 1 NM OR LESS.
SAT NIGHT
SW WINDS 10 KT. WAVES 1 TO 2 FT. SHOWERS AND TSTMS
LIKELY.
SUN
N WINDS 10 KT. WAVES 1 FT.
SUN NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
MON...SE WINDS 5 TO 10 KT
BECOMING S AFTER MIDNIGHT. WAVES 1 TO
2 FT.
TUE
S WINDS 15 TO 20 KT. WAVES 2 TO 3 FT. A CHANCE OF SHOWERS IN
THE AFTERNOON. A CHANCE OF TSTMS. SHOWERS LIKELY THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ540-180800-
EASTERN BAY-
311 PM EDT FRI JUL 17 2026
REST OF THIS AFTERNOON
NE WINDS 5 KT. WAVES FLAT. SMOKE.
TONIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT OR LESS. SMOKE.
SAT
S WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE LATE MORNING AND
AFTERNOON. WAVES 1 FT. SHOWERS WITH TSTMS LIKELY. AREAS OF SMOKE.
VSBY 1 NM OR LESS.
SAT NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS AND TSTMS
LIKELY.
SUN
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
MON...SE WINDS 5 TO 10 KT
BECOMING S AFTER MIDNIGHT. WAVES 1 FT
OR LESS.
TUE
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS IN
THE AFTERNOON. A CHANCE OF TSTMS. SHOWERS LIKELY THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ533-180800-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
311 PM EDT FRI JUL 17 2026
REST OF THIS AFTERNOON
NE WINDS 5 KT. WAVES FLAT. SMOKE.
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. SMOKE.
SAT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
SHOWERS AND TSTMS LIKELY. AREAS OF SMOKE. VSBY 1 NM OR LESS.
SAT NIGHT...SW WINDS 10 TO 15 KT
BECOMING W AFTER MIDNIGHT. GUSTS
UP TO 20 KT. WAVES 1 TO 2 FT. SHOWERS AND TSTMS LIKELY.
SUN
N WINDS 10 KT. WAVES 2 FT.
SUN NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
MON...SE WINDS 5 TO 10 KT
BECOMING S AFTER MIDNIGHT. WAVES 1 TO
2 FT.
TUE...S WINDS 15 TO 20 KT. WAVES 1 FT
BUILDING TO 2 TO 3 FT. A
CHANCE OF SHOWERS THROUGH THE NIGHT. A CHANCE OF TSTMS. SHOWERS
LIKELY AFTER MIDNIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ541-180800-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
311 PM EDT FRI JUL 17 2026
REST OF THIS AFTERNOON
N WINDS 5 KT. WAVES FLAT. SMOKE.
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. SMOKE.
SAT
S WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE LATE MORNING
AND AFTERNOON. WAVES 1 TO 2 FT. TSTMS LIKELY WITH A CHANCE OF
SHOWERS. AREAS OF SMOKE. VSBY 1 NM OR LESS.
SAT NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 TO 2 FT. SHOWERS AND TSTMS
LIKELY.
SUN
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
MON...SE WINDS 5 TO 10 KT
BECOMING S AFTER MIDNIGHT. WAVES 1 FT.
TUE
S WINDS 15 TO 20 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS IN
THE AFTERNOON. A CHANCE OF TSTMS. SHOWERS LIKELY THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ542-180800-
PATUXENT RIVER TO BROOMES ISLAND MD-
311 PM EDT FRI JUL 17 2026
REST OF THIS AFTERNOON
E WINDS 5 KT. WAVES LESS THAN 1 FT. SMOKE.
TONIGHT
SE WINDS 5 KT. WAVES LESS THAN 1 FT. SMOKE.
SAT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT. SHOWERS
AND TSTMS LIKELY. AREAS OF SMOKE. VSBY 1 NM OR LESS.
SAT NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS AND TSTMS
LIKELY.
SUN
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
MON...SE WINDS 5 TO 10 KT
BECOMING S AFTER MIDNIGHT. WAVES 1 FT.
TUE
S WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ534-180800-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
311 PM EDT FRI JUL 17 2026
REST OF THIS AFTERNOON
NE WINDS 5 KT. WAVES FLAT. SMOKE.
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. SMOKE.
SAT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 TO 3 FT. A
CHANCE OF SHOWERS AND TSTMS. AREAS OF SMOKE. VSBY 1 NM OR LESS.
SAT NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 TO
3 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
SUN
NW WINDS 5 TO 10 KT. WAVES 2 FT. A CHANCE OF SHOWERS.
SUN NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
MON...SE WINDS 5 TO 10 KT
BECOMING S AFTER MIDNIGHT. WAVES 1 TO
2 FT.
TUE
S WINDS 15 TO 20 KT. WAVES 2 TO 3 FT. A CHANCE OF SHOWERS AND
TSTMS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ543-180800-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
311 PM EDT FRI JUL 17 2026
REST OF THIS AFTERNOON
W WINDS 5 KT. WAVES FLAT. SMOKE.
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. SMOKE.
SAT...S WINDS 10 TO 15 KT. GUSTS UP TO 20 KT
INCREASING TO 25 KT
LATE. WAVES 1 TO 2 FT. AREAS OF SMOKE.
SAT NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SHOWERS WITH TSTMS LIKELY.
SUN
NW WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SUN NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
MON...SE WINDS 5 TO 10 KT
BECOMING S AFTER MIDNIGHT. WAVES 1 FT.
A CHANCE OF SHOWERS AND TSTMS AFTER MIDNIGHT.
TUE
S WINDS 15 TO 20 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS AND
TSTMS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page