446
FZUS51 KLWX 121827
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
227 PM EDT MON OCT 12 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.
ANZ500-130800-
227 PM EDT MON OCT 12 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
HIGH PRESSURE BUILDS TO THE SOUTH OF THE WATERS TUESDAY. A DRY COLD
FRONT WILL PUSH SOUTHWARD WEDNESDAY. SMALL CRAFT ADVISORIES MAY BE
NEEDED TUESDAY NIGHT AND WEDNESDAY NIGHT THROUGH THURSDAY.
ANZ535-130800-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
227 PM EDT MON OCT 12 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 PM EDT THIS AFTERNOON
THIS AFTERNOON
NW WINDS 10 KT. WAVES 1 FT.
TONIGHT
W WINDS AROUND 5 KT. WAVES 1 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SW WINDS AROUND 5 KT. WAVES 1 FT.
WED NIGHT
NW WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF
SHOWERS.
THU...NE WINDS 5 TO 10 KT
BECOMING S AFTER MIDNIGHT. WAVES 1 FT.
A CHANCE OF SHOWERS IN THE MORNING. A CHANCE OF SHOWERS AFTER
MIDNIGHT.
FRI...S WINDS 5 TO 10 KT
BECOMING W 15 TO 20 KT IN THE AFTERNOON,
THEN BECOMING NW. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS.
ANZ536-130800-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
227 PM EDT MON OCT 12 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 PM EDT THIS AFTERNOON
THIS AFTERNOON
NW WINDS 10 KT. WAVES 1 FT.
TONIGHT
NW WINDS AROUND 5 KT. WAVES 1 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SW WINDS AROUND 5 KT. WAVES 1 FT.
WED NIGHT...W WINDS 5 KT
BECOMING N AFTER MIDNIGHT. WAVES 1 FT.
THU...NE WINDS 5 TO 10 KT
BECOMING SE AFTER MIDNIGHT. WAVES 1 FT.
FRI...S WINDS 10 TO 15 KT
BECOMING W 20 TO 25 KT IN THE
AFTERNOON, THEN BECOMING NW. WAVES 1 TO 2 FT... BUILDING TO 3 FT. A
CHANCE OF SHOWERS THROUGH THE NIGHT.
ANZ537-130800-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
227 PM EDT MON OCT 12 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
THIS AFTERNOON
NW WINDS 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
TONIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TUE NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WED NIGHT...SW WINDS AROUND 5 KT
BECOMING NW AFTER MIDNIGHT.
WAVES 1 FT.
THU...NE WINDS 10 TO 15 KT
BECOMING SE 5 TO 10 KT. WAVES 1 TO
2 FT.
FRI...S WINDS 10 TO 15 KT
BECOMING SW 20 TO 25 KT IN THE
AFTERNOON, THEN BECOMING NW 25 TO 30 KT. WAVES 2 TO 3 FT...BUILDING
TO 4 FT. A CHANCE OF SHOWERS.
ANZ530-130800-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
227 PM EDT MON OCT 12 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 PM EDT THIS AFTERNOON
THIS AFTERNOON
NW WINDS 10 KT. WAVES 1 FT.
TONIGHT
W WINDS AROUND 5 KT. WAVES 1 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE NIGHT
SW WINDS 10 TO 15 KT. WAVES 1 FT.
WED
W WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
THU...NE WINDS 5 TO 10 KT
BECOMING SE AFTER MIDNIGHT. WAVES 1 FT.
SHOWERS LIKELY AFTER MIDNIGHT.
FRI...S WINDS 10 TO 15 KT
BECOMING SW 20 TO 25 KT IN THE
AFTERNOON, THEN BECOMING NW. WAVES 2 TO 3 FT. SHOWERS LIKELY IN THE
MORNING. A CHANCE OF SHOWERS IN THE AFTERNOON.
ANZ531-130800-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
227 PM EDT MON OCT 12 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 PM EDT THIS AFTERNOON
THIS AFTERNOON
NW WINDS 10 KT. WAVES 1 TO 2 FT.
TONIGHT
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
TUE...SW WINDS 10 TO 15 KT. WAVES FLAT
BUILDING TO 2 FT IN THE
AFTERNOON.
TUE NIGHT
SW WINDS 10 TO 15 KT. WAVES 2 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT...W WINDS 5 KT
BECOMING N 10 TO 15 KT AFTER MIDNIGHT.
WAVES 1 FT.
THU...NE WINDS 10 TO 15 KT
BECOMING SE. WAVES 1 TO 2 FT. A CHANCE
OF SHOWERS AFTER MIDNIGHT.
FRI...S WINDS 10 TO 15 KT
BECOMING SW 20 TO 25 KT IN THE
AFTERNOON, THEN BECOMING NW 25 TO 30 KT. WAVES 2 TO 3 FT...BUILDING
TO 4 FT. A CHANCE OF SHOWERS.
ANZ538-130800-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
227 PM EDT MON OCT 12 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 PM EDT THIS AFTERNOON
THIS AFTERNOON
NW WINDS 10 KT. WAVES 1 FT.
TONIGHT
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TUE NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
WED NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
THU...NE WINDS 5 TO 10 KT
BECOMING SE AFTER MIDNIGHT. WAVES 1 FT.
A CHANCE OF SHOWERS AFTER MIDNIGHT.
FRI...S WINDS 10 KT
BECOMING W 15 TO 20 KT IN THE AFTERNOON, THEN
BECOMING NW. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS.
ANZ539-130800-
CHESTER RIVER TO QUEENSTOWN MD-
227 PM EDT MON OCT 12 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 PM EDT THIS AFTERNOON
THIS AFTERNOON
NW WINDS 10 KT. WAVES 1 TO 2 FT.
TONIGHT
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TUE NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT...W WINDS 5 KT
BECOMING N AFTER MIDNIGHT. WAVES 1 FT.
THU...NE WINDS 5 TO 10 KT
BECOMING SE AFTER MIDNIGHT. WAVES 1 FT.
A CHANCE OF SHOWERS AFTER MIDNIGHT.
FRI...S WINDS 10 TO 15 KT
BECOMING SW 20 TO 25 KT IN THE
AFTERNOON, THEN BECOMING NW 25 TO 30 KT. WAVES 2 TO 3 FT...BUILDING
TO 4 FT. A CHANCE OF SHOWERS.
ANZ532-130800-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
227 PM EDT MON OCT 12 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 PM EDT THIS AFTERNOON
THIS AFTERNOON
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES
2 FT.
TONIGHT
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
TUE...SW WINDS 10 TO 15 KT. WAVES FLAT
BUILDING TO 2 FT IN THE
AFTERNOON.
TUE NIGHT
SW WINDS 10 TO 15 KT. WAVES 2 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT...SW WINDS 5 KT
BECOMING N 10 TO 15 KT AFTER MIDNIGHT.
WAVES 1 FT. A CHANCE OF SHOWERS.
THU...NE WINDS 10 TO 15 KT
BECOMING SE. WAVES 1 TO 2 FT. A CHANCE
OF SHOWERS IN THE MORNING. A CHANCE OF SHOWERS AFTER MIDNIGHT.
FRI...S WINDS 10 TO 15 KT
BECOMING SW 20 TO 25 KT IN THE
AFTERNOON, THEN BECOMING NW 25 TO 30 KT. WAVES 2 FT...BUILDING TO
4 FT. A CHANCE OF SHOWERS.
ANZ540-130800-
EASTERN BAY-
227 PM EDT MON OCT 12 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 PM EDT THIS AFTERNOON
THIS AFTERNOON
NW WINDS 10 KT. WAVES 1 FT.
TONIGHT
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TUE NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT...SW WINDS 5 KT
BECOMING N AFTER MIDNIGHT. WAVES 1 FT.
THU...NE WINDS 10 TO 15 KT
BECOMING SE 5 TO 10 KT. WAVES 1 FT. A
CHANCE OF SHOWERS AFTER MIDNIGHT.
FRI...S WINDS 10 TO 15 KT
BECOMING SW 20 TO 25 KT IN THE
AFTERNOON, THEN BECOMING NW 25 TO 30 KT. WAVES 2 TO 3 FT. A CHANCE
OF SHOWERS.
ANZ533-130800-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
227 PM EDT MON OCT 12 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
THIS AFTERNOON
N WINDS 15 KT WITH GUSTS TO 20 KT. WAVES 2 TO
3 FT.
TONIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE...SW WINDS 5 TO 10 KT
BECOMING S LATE. WAVES 1 FT OR LESS.
TUE NIGHT
SW WINDS 10 TO 15 KT. WAVES 2 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT...SW WINDS 5 TO 10 KT
BECOMING N 10 TO 15 KT AFTER
MIDNIGHT. WAVES 1 TO 2 FT.
THU...NE WINDS 10 TO 15 KT
BECOMING SE. WAVES 1 TO 2 FT. A CHANCE
OF SHOWERS AFTER MIDNIGHT.
FRI...S WINDS 10 TO 15 KT
BECOMING SW 25 TO 30 KT IN THE
AFTERNOON, THEN BECOMING NW. WAVES 2 FT... BUILDING TO 4 FT. A
CHANCE OF SHOWERS.
ANZ541-130800-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
227 PM EDT MON OCT 12 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 PM EDT THIS AFTERNOON
THIS AFTERNOON
N WINDS 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
TONIGHT
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
TUE...SW WINDS 5 TO 10 KT
BECOMING S LATE. WAVES 1 FT OR LESS.
TUE NIGHT
SW WINDS 10 TO 15 KT. WAVES 1 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT...SW WINDS 5 KT
BECOMING N 10 TO 15 KT AFTER MIDNIGHT.
WAVES 1 FT.
THU...NE WINDS 10 TO 15 KT
BECOMING SE 5 TO 10 KT. WAVES 1 TO
2 FT. A CHANCE OF SHOWERS AFTER MIDNIGHT.
FRI...S WINDS 10 TO 15 KT
BECOMING SW 20 TO 25 KT IN THE
AFTERNOON, THEN BECOMING NW 25 TO 30 KT. WAVES 2 TO 3 FT...BUILDING
TO 4 FT. A CHANCE OF SHOWERS.
ANZ542-130800-
PATUXENT RIVER TO BROOMES ISLAND MD-
227 PM EDT MON OCT 12 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 PM EDT THIS AFTERNOON
THIS AFTERNOON
N WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
TONIGHT
NW WINDS AROUND 5 KT. WAVES 1 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
WED NIGHT...SW WINDS AROUND 5 KT
BECOMING N AFTER MIDNIGHT. WAVES
1 FT.
THU...NE WINDS 5 TO 10 KT
BECOMING SE AFTER MIDNIGHT. WAVES 1 FT.
A CHANCE OF SHOWERS AFTER MIDNIGHT.
FRI...S WINDS 5 TO 10 KT
BECOMING SW 15 TO 20 KT IN THE
AFTERNOON, THEN BECOMING NW. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS.
ANZ534-130800-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
227 PM EDT MON OCT 12 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
THIS AFTERNOON
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES
3 FT.
TONIGHT
NW WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
TUE...W WINDS 5 KT
BECOMING S 10 TO 15 KT IN THE AFTERNOON. WAVES
1 TO 2 FT.
TUE NIGHT
SW WINDS 10 TO 15 KT. WAVES 2 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT...SW WINDS 5 TO 10 KT
BECOMING NW 10 TO 15 KT AFTER
MIDNIGHT. WAVES 1 FT.
THU...NE WINDS 10 TO 15 KT
BECOMING SE. WAVES 1 TO 2 FT.
FRI...S WINDS 10 TO 15 KT
BECOMING SW 20 TO 25 KT IN THE
AFTERNOON, THEN BECOMING NW 25 TO 35 KT. WAVES 2 TO 3 FT...BUILDING
TO 6 FT. A CHANCE OF SHOWERS.
ANZ543-130800-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
227 PM EDT MON OCT 12 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING
THIS AFTERNOON
N WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
TONIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE...SW WINDS 5 TO 10 KT
BECOMING S LATE. WAVES 1 FT OR LESS.
TUE NIGHT
S WINDS 10 TO 15 KT. WAVES 1 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT...SW WINDS 5 TO 10 KT
BECOMING NW AFTER MIDNIGHT. WAVES
1 FT.
THU...NE WINDS 10 TO 15 KT
BECOMING SE 5 TO 10 KT. WAVES 1 FT.
FRI...S WINDS 10 TO 15 KT
BECOMING SW 20 TO 25 KT IN THE
AFTERNOON, THEN BECOMING NW 25 TO 30 KT. WAVES 2 TO 3 FT...BUILDING
TO 3 FT. A CHANCE OF SHOWERS.
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