033
FZUS51 KLWX 171307
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
907 AM 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.
ANZ500-172000-
907 AM EDT FRI JUL 17 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
A WEAK FRONT WILL STALL OVER THE SOUTHERN CHESAPEAKE BAY TODAY, THEN
RETURN NORTHWARD AS A WARM FRONT 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 TONIGHT
THROUGH SATURDAY NIGHT, AND AGAIN MONDAY NIGHT INTO TUESDAY.
ANZ535-172000-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
907 AM EDT FRI JUL 17 2026
REST OF TODAY
NW WINDS 5 KT. WAVES LESS THAN 1 FT. SMOKE.
TONIGHT
SE 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 FT. SHOWERS AND TSTMS LIKELY. PATCHY SMOKE. VSBY
1 NM OR LESS.
SAT NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS.
SUN
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
NE WINDS AROUND 5 KT. WAVES 1 FT.
MON
SE WINDS AROUND 5 KT. WAVES 1 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY WITH A CHANCE
OF TSTMS THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ536-172000-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
907 AM EDT FRI JUL 17 2026
REST OF TODAY
NE WINDS 5 KT. WAVES LESS THAN 1 FT. SMOKE.
TONIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT. SMOKE.
SAT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A CHANCE
OF SHOWERS AND TSTMS.
SAT 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.
SUN
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SUN NIGHT
NE WINDS AROUND 5 KT. WAVES 1 FT.
MON...E WINDS 5 TO 10 KT
BECOMING S AFTER MIDNIGHT. WAVES 1 FT.
TUE
SW 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.
ANZ537-172000-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
907 AM EDT FRI JUL 17 2026
REST OF TODAY
E WINDS 5 KT. WAVES LESS THAN 1 FT. SMOKE.
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. SMOKE.
SAT...S WINDS 10 TO 15 KT
BECOMING SW WITH GUSTS TO 20 KT LATE.
WAVES 1 TO 2 FT. A CHANCE OF SHOWERS AND TSTMS.
SAT NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
SUN
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
SUN NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
MON...E WINDS 5 TO 10 KT
BECOMING S AFTER MIDNIGHT. WAVES 1 FT. A
CHANCE OF SHOWERS AND TSTMS AFTER MIDNIGHT.
TUE
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. A CHANCE OF TSTMS. A
CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ530-172000-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
907 AM EDT FRI JUL 17 2026
REST OF TODAY
NW WINDS 5 KT. WAVES LESS THAN 1 FT. SMOKE.
TONIGHT
S WINDS 5 TO 10 KT. WAVES FLAT. SMOKE.
SAT
S WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE LATE MORNING AND
AFTERNOON. WAVES 1 FT. SHOWERS WITH A CHANCE OF TSTMS. AREAS OF
SMOKE. VSBY 1 NM OR LESS.
SAT NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS.
SUN
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT.
MON...E WINDS 5 TO 10 KT
BECOMING SE. WAVES 1 FT OR LESS.
TUE
S WINDS 10 TO 15 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.
ANZ531-172000-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
907 AM EDT FRI JUL 17 2026
REST OF TODAY
NE WINDS 5 KT. WAVES LESS THAN 1 FT. SMOKE.
TONIGHT
SE WINDS 5 TO 10 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 TO 2 FT. SHOWERS WITH A CHANCE OF TSTMS. PATCHY
SMOKE. VSBY 1 NM OR LESS.
SAT NIGHT
SW WINDS 10 KT. WAVES 1 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS.
SUN
NW WINDS 10 KT. WAVES 1 FT.
SUN NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
MON...E WINDS 5 TO 10 KT
BECOMING SE. WAVES 1 FT.
TUE
S WINDS 10 TO 15 KT. WAVES 1 TO 2 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.
ANZ538-172000-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
907 AM EDT FRI JUL 17 2026
REST OF TODAY
E WINDS 5 KT. WAVES FLAT. SMOKE.
TONIGHT
S WINDS 5 KT. WAVES FLAT. SMOKE.
SAT
S WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS WITH A CHANCE OF
TSTMS. AREAS OF SMOKE. VSBY 1 NM OR LESS.
SAT NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS.
SUN
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
NE WINDS 5 KT. WAVES LESS THAN 1 FT.
MON...E WINDS 5 KT
BECOMING SE. WAVES 1 FT OR LESS.
TUE
S WINDS 10 TO 15 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.
ANZ539-172000-
CHESTER RIVER TO QUEENSTOWN MD-
907 AM EDT FRI JUL 17 2026
REST OF TODAY
N WINDS 5 KT. WAVES LESS THAN 1 FT. SMOKE.
TONIGHT
SE WINDS 5 TO 10 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 A CHANCE OF TSTMS. PATCHY SMOKE.
VSBY 1 NM OR LESS.
SAT NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS WITH A CHANCE
OF TSTMS.
SUN
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
MON...E WINDS 5 TO 10 KT
BECOMING S. WAVES 1 FT OR LESS.
TUE
S WINDS 10 TO 15 KT. WAVES 1 TO 2 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.
ANZ532-172000-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
907 AM EDT FRI JUL 17 2026
REST OF TODAY
NE WINDS 5 KT. WAVES LESS THAN 1 FT. 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 A CHANCE OF TSTMS.
SAT NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT. SHOWERS WITH A CHANCE OF TSTMS.
SUN
NW WINDS 10 KT. WAVES 1 FT.
SUN NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
MON...E WINDS 5 TO 10 KT
BECOMING SE 10 TO 15 KT. WAVES 1 TO
2 FT.
TUE...S WINDS 10 TO 15 KT. WAVES 1 FT
BUILDING TO 2 TO 3 FT.
SHOWERS LIKELY WITH A CHANCE OF TSTMS THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ540-172000-
EASTERN BAY-
907 AM EDT FRI JUL 17 2026
REST OF TODAY
NE WINDS 5 KT. WAVES LESS THAN 1 FT. SMOKE.
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. SMOKE.
SAT
S WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS WITH A CHANCE OF
TSTMS. PATCHY SMOKE. VSBY 1 NM OR LESS.
SAT NIGHT
SW WINDS 10 KT. WAVES 1 FT. SHOWERS WITH A CHANCE OF
TSTMS.
SUN
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
MON...E WINDS 5 TO 10 KT
BECOMING SE. WAVES 1 FT OR LESS.
TUE
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ533-172000-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
907 AM EDT FRI JUL 17 2026
REST OF TODAY
NE WINDS 5 TO 10 KT. WAVES 1 FT. 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 LIKELY WITH A CHANCE OF
TSTMS.
SAT NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
SUN
NW WINDS 10 KT. WAVES 1 FT.
SUN NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
MON...E WINDS 10 TO 15 KT
BECOMING S AFTER MIDNIGHT. WAVES 1 TO
2 FT.
TUE...S WINDS 5 TO 10 KT...INCREASING TO 15 TO 20 KT. WAVES 1 FT
BUILDING TO 2 TO 3 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS THROUGH
THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ541-172000-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
907 AM EDT FRI JUL 17 2026
REST OF TODAY
N WINDS 5 KT. WAVES LESS THAN 1 FT. 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 LIKELY WITH A CHANCE OF
TSTMS.
SAT NIGHT
SW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. SHOWERS WITH A
CHANCE OF TSTMS.
SUN
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SUN NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
MON...E WINDS 5 TO 10 KT
BECOMING SE. WAVES 1 FT.
TUE
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ542-172000-
PATUXENT RIVER TO BROOMES ISLAND MD-
907 AM EDT FRI JUL 17 2026
REST OF TODAY
NE 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. A CHANCE
OF SHOWERS AND TSTMS.
SAT NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS.
SUN
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
SUN NIGHT
NE WINDS AROUND 5 KT. WAVES 1 FT.
MON...E 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.
ANZ534-172000-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
907 AM EDT FRI JUL 17 2026
REST OF TODAY
N WINDS 5 TO 10 KT. WAVES 1 TO 2 FT. 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.
SAT NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SHOWERS LIKELY WITH A CHANCE OF TSTMS.
SUN
NW WINDS 5 TO 10 KT. WAVES 2 FT. A CHANCE OF SHOWERS AND
TSTMS.
SUN NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT.
MON...SE WINDS 10 TO 15 KT
BECOMING S AFTER MIDNIGHT. WAVES 1 TO
2 FT. A CHANCE OF SHOWERS AND TSTMS AFTER MIDNIGHT.
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.
ANZ543-172000-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
907 AM EDT FRI JUL 17 2026
REST OF TODAY
NW WINDS 5 KT. WAVES LESS THAN 1 FT. 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. A CHANCE OF SHOWERS AND TSTMS.
SAT NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SHOWERS WITH A CHANCE OF TSTMS.
SUN
NW WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
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.
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