657
FZUS51 KLWX 170831
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
331 AM EST SAT JAN 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.
ANZ500-172300-
331 AM EST SAT JAN 17 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
LOW PRESSURE OVER THE GREAT LAKES WILL SEND A FRONTAL SYSTEM ACROSS
THE AREA THROUGH TONIGHT. LOW PRESSURE WILL LIKELY PASS OFFSHORE
SUNDAY, THEN A REINFORCING ARCTIC FRONT WILL CROSS MONDAY. HIGH
PRESSURE WILL BUILD TOWARD THE AREA HEADING INTO THE MIDDLE OF NEXT
WEEK AHEAD OF THE NEXT POTENTIAL SYSTEM. SMALL CRAFT ADVISORIES WILL
LIKELY BE NEEDED MONDAY INTO TUESDAY.
ANZ535-172300-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
331 AM EST SAT JAN 17 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM EST THIS MORNING THROUGH
THIS AFTERNOON...
REST OF THE OVERNIGHT
S WINDS 10 KT. WAVES 1 FT. A SLIGHT CHANCE
OF LIGHT SNOW. VSBY 1 TO 3 NM.
TODAY
SW WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A
CHANCE OF RAIN AND LIGHT SNOW. VSBY 1 TO 3 NM.
TONIGHT
W WINDS AROUND 5 KT. WAVES 1 FT.
SUN
N WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF LIGHT SNOW
AND RAIN.
SUN NIGHT
W WINDS AROUND 5 KT. WAVES 1 FT.
MON
SW WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
MON NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE...NW WINDS 5 TO 10 KT
BECOMING S AFTER MIDNIGHT. WAVES 1 FT.
WED
S WINDS 10 TO 15 KT. WAVES 1 FT.
ANZ536-172300-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
331 AM EST SAT JAN 17 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM EST THIS MORNING THROUGH
THIS AFTERNOON...
REST OF THE OVERNIGHT
S WINDS 10 KT. WAVES 1 FT. A SLIGHT CHANCE
OF LIGHT SNOW. VSBY 1 TO 3 NM.
TODAY
SW WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A
CHANCE OF RAIN.
TONIGHT
W WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF RAIN.
SUN
N WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF RAIN AND
LIGHT SNOW.
SUN NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
MON
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
MON NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE...NW WINDS 5 TO 10 KT
BECOMING S AFTER MIDNIGHT. WAVES 1 FT.
WED
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
ANZ537-172300-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
331 AM EST SAT JAN 17 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON
REST OF THE OVERNIGHT
S WINDS 15 KT WITH GUSTS TO 20 KT. WAVES
2 FT.
TODAY
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
TONIGHT
W WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF RAIN.
VSBY 1 TO 3 NM.
SUN
N WINDS 5 TO 10 KT. WAVES 1 FT. RAIN AND LIGHT SNOW LIKELY.
SUN NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
MON
SW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
MON NIGHT
NW WINDS 10 TO 15 KT. WAVES 1 FT.
TUE...NW WINDS 10 TO 15 KT
BECOMING W 5 KT. WAVES 1 FT.
WED
SW WINDS 15 TO 20 KT. WAVES 1 TO 2 FT.
ANZ530-172300-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
331 AM EST SAT JAN 17 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON
REST OF THE OVERNIGHT
S WINDS 10 KT. WAVES 1 FT. A CHANCE OF
LIGHT SNOW. VSBY 1 TO 3 NM.
TODAY
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT UNTIL LATE
AFTERNOON. WAVES 1 TO 2 FT. RAIN LIKELY WITH A CHANCE OF LIGHT SNOW.
VSBY 1 TO 3 NM.
TONIGHT
W WINDS AROUND 5 KT. WAVES 1 FT.
SUN
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF LIGHT SNOW AND
RAIN.
SUN NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT.
MON
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
MON NIGHT
W WINDS 15 TO 20 KT. WAVES 1 FT.
TUE...W WINDS 10 TO 15 KT
BECOMING SW AROUND 5 KT AFTER MIDNIGHT.
WAVES 1 FT.
WED
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
ANZ531-172300-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
331 AM EST SAT JAN 17 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON
REST OF THE OVERNIGHT
S WINDS 15 KT WITH GUSTS TO 20 KT. WAVES
2 FT. A CHANCE OF LIGHT SNOW. VSBY 1 TO 3 NM.
TODAY...S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING SW 5 KT
LATE. WAVES 2 FT. RAIN LIKELY WITH A CHANCE OF LIGHT SNOW. VSBY 1 TO
3 NM.
TONIGHT
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SUN
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF LIGHT SNOW.
SUN NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
MON
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
MON NIGHT
NW WINDS 15 TO 20 KT. WAVES 2 FT.
TUE...NW WINDS 15 TO 20 KT
BECOMING W 5 TO 10 KT. WAVES 1 TO
2 FT.
WED
S WINDS 15 TO 20 KT. WAVES 2 TO 3 FT.
ANZ538-172300-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
331 AM EST SAT JAN 17 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON
REST OF THE OVERNIGHT
S WINDS 10 KT. WAVES 1 FT. A CHANCE OF
LIGHT SNOW. VSBY 1 TO 3 NM.
TODAY
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT UNTIL LATE
AFTERNOON. WAVES 1 FT. RAIN LIKELY WITH A CHANCE OF LIGHT SNOW. VSBY
1 TO 3 NM.
TONIGHT
W WINDS 5 KT. WAVES FLAT. A CHANCE OF LIGHT SNOW. VSBY
1 TO 3 NM.
SUN
NW WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF LIGHT SNOW.
SUN NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
MON
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
MON NIGHT
W WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
TUE...W WINDS 10 TO 15 KT
DIMINISHING TO AROUND 5 KT. WAVES 1 FT
OR LESS.
WED
SW WINDS 10 TO 15 KT. WAVES 1 FT.
ANZ539-172300-
CHESTER RIVER TO QUEENSTOWN MD-
331 AM EST SAT JAN 17 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON
REST OF THE OVERNIGHT
S WINDS 15 KT WITH GUSTS TO 20 KT. WAVES
2 FT. A SLIGHT CHANCE OF LIGHT SNOW. VSBY 1 TO 3 NM.
TODAY...S WINDS 10 TO 15 KT
BECOMING SW 5 KT LATE. GUSTS UP TO
20 KT. WAVES 2 FT. RAIN LIKELY WITH A CHANCE OF LIGHT SNOW. VSBY
1 TO 3 NM.
TONIGHT
W WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN
N WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF LIGHT SNOW AND
RAIN.
SUN NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
MON
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
MON NIGHT
NW WINDS 15 TO 20 KT. WAVES 2 FT.
TUE...NW WINDS 10 TO 15 KT
BECOMING SW 5 KT AFTER MIDNIGHT. WAVES
1 TO 2 FT.
WED
S WINDS 15 TO 20 KT. WAVES 2 FT.
ANZ532-172300-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
331 AM EST SAT JAN 17 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON
REST OF THE OVERNIGHT
S WINDS 15 KT WITH GUSTS TO 20 KT. WAVES
2 FT. A SLIGHT CHANCE OF LIGHT SNOW. VSBY 1 TO 3 NM.
TODAY
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT. WAVES 2 FT. A
CHANCE OF RAIN AND LIGHT SNOW. VSBY 1 TO 3 NM.
TONIGHT
W WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN
N WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF LIGHT SNOW AND
RAIN.
SUN NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
MON
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON NIGHT
NW WINDS 15 TO 20 KT. WAVES 2 FT.
TUE...NW WINDS 15 TO 20 KT
BECOMING W 5 TO 10 KT. WAVES 1 TO
2 FT.
WED
S WINDS 20 TO 25 KT. WAVES 2 TO 3 FT.
ANZ540-172300-
EASTERN BAY-
331 AM EST SAT JAN 17 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON
REST OF THE OVERNIGHT
S WINDS 15 KT WITH GUSTS TO 20 KT. WAVES
2 FT. A SLIGHT CHANCE OF LIGHT SNOW. VSBY 1 TO 3 NM.
TODAY
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT. WAVES 2 FT. A
CHANCE OF RAIN AND LIGHT SNOW. VSBY 1 TO 3 NM.
TONIGHT
W WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN
N WINDS 5 TO 10 KT. WAVES 1 FT. LIGHT SNOW LIKELY WITH A
CHANCE OF RAIN.
SUN NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
MON
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
MON NIGHT
NW WINDS 15 TO 20 KT. WAVES 2 FT.
TUE...NW WINDS 10 TO 15 KT
BECOMING SW 5 KT AFTER MIDNIGHT. WAVES
1 TO 2 FT...SUBSIDING TO FLAT AFTER MIDNIGHT.
WED
S WINDS 15 TO 20 KT. WAVES 1 TO 2 FT.
ANZ533-172300-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
331 AM EST SAT JAN 17 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON
REST OF THE OVERNIGHT
S WINDS 15 KT WITH GUSTS TO 20 KT. WAVES
2 FT. A SLIGHT CHANCE OF LIGHT SNOW. VSBY 1 TO 3 NM.
TODAY
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT. WAVES 2 FT. A
CHANCE OF RAIN.
TONIGHT
W WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF RAIN.
VSBY 1 TO 3 NM.
SUN
N WINDS 5 TO 10 KT. WAVES 1 FT. RAIN AND LIGHT SNOW LIKELY.
SUN NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
MON
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON NIGHT
NW WINDS 15 TO 20 KT. WAVES 2 FT.
TUE...NW WINDS 15 TO 20 KT
BECOMING W 5 TO 10 KT. WAVES 1 TO
2 FT.
WED
S WINDS 20 TO 25 KT. WAVES 2 TO 3 FT.
ANZ541-172300-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
331 AM EST SAT JAN 17 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON
REST OF THE OVERNIGHT
S WINDS 15 KT WITH GUSTS TO 20 KT. WAVES
2 FT. A SLIGHT CHANCE OF LIGHT SNOW. VSBY 1 TO 3 NM.
TODAY
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. A
CHANCE OF RAIN.
TONIGHT
W WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF RAIN.
VSBY 1 TO 3 NM.
SUN
N WINDS 5 TO 10 KT. WAVES 1 FT. RAIN AND LIGHT SNOW LIKELY.
SUN NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
MON
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
MON NIGHT
NW WINDS 15 TO 20 KT. WAVES 2 FT.
TUE...NW WINDS 15 TO 20 KT
BECOMING W 5 TO 10 KT. WAVES 1 TO
2 FT.
WED
S WINDS 20 TO 25 KT. WAVES 2 TO 3 FT.
ANZ542-172300-
PATUXENT RIVER TO BROOMES ISLAND MD-
331 AM EST SAT JAN 17 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON
REST OF THE OVERNIGHT
S WINDS 10 KT. WAVES 1 FT.
TODAY
SW WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A
CHANCE OF RAIN.
TONIGHT
W WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF RAIN.
VSBY 1 TO 3 NM.
SUN
N WINDS 5 TO 10 KT. WAVES 1 FT. RAIN AND LIGHT SNOW LIKELY.
SUN NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
MON
SW WINDS 10 TO 15 KT. WAVES 1 FT.
MON NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
W WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SW WINDS 10 TO 15 KT. WAVES 1 FT.
ANZ534-172300-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
331 AM EST SAT JAN 17 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON
REST OF THE OVERNIGHT
S WINDS 15 KT WITH GUSTS TO 20 KT. WAVES
3 FT.
TODAY...SW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT
DIMINISHING TO
5 TO 10 KT LATE. WAVES 2 TO 3 FT.
TONIGHT...SW WINDS 5 TO 10 KT
BECOMING NW LATE. WAVES 1 FT. RAIN
LIKELY. VSBY 1 TO 3 NM.
SUN
N WINDS 5 TO 10 KT. WAVES 1 FT. RAIN AND LIGHT SNOW.
SUN NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
MON
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON NIGHT
NW WINDS 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
TUE...NW WINDS 10 TO 15 KT
BECOMING W 5 TO 10 KT AFTER MIDNIGHT.
WAVES 1 TO 2 FT.
WED
SW WINDS 15 TO 20 KT. WAVES 2 TO 3 FT.
ANZ543-172300-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
331 AM EST SAT JAN 17 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THIS AFTERNOON
REST OF THE OVERNIGHT
S WINDS 15 KT WITH GUSTS TO 20 KT. WAVES
2 FT.
TODAY...SW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT
DIMINISHING TO
5 TO 10 KT LATE. WAVES 2 FT.
TONIGHT...SW WINDS 5 TO 10 KT
BECOMING NW LATE. WAVES 1 FT. RAIN
LIKELY. VSBY 1 TO 3 NM.
SUN
N WINDS 5 TO 10 KT. WAVES 1 FT. RAIN AND LIGHT SNOW.
SUN NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
MON
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
MON NIGHT...W WINDS 10 TO 15 KT
BECOMING NW AFTER MIDNIGHT. GUSTS
UP TO 20 KT. WAVES 1 TO 2 FT.
TUE...NW WINDS 15 TO 20 KT
BECOMING W 5 TO 10 KT. WAVES 1 TO
2 FT.
WED
SW WINDS 15 TO 20 KT. WAVES 2 FT.
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