903
FZUS51 KLWX 180808
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
308 AM EST SUN JAN 18 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.
ANZ500-182300-
308 AM EST SUN JAN 18 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
LOW PRESSURE WILL PASS OFFSHORE THROUGH TONIGHT, THEN A REINFORCING
ARCTIC FRONT WILL CROSS MONDAY. HIGH PRESSURE WILL BUILD TOWARD THE
AREA HEADING INTO THE MIDDLE OF THE WEEK AHEAD OF THE NEXT POTENTIAL
SYSTEM LATER IN THE WEEK. SMALL CRAFT ADVISORIES WILL LIKELY BE
NEEDED AT TIMES THROUGH TUESDAY.
ANZ535-182300-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
308 AM EST SUN JAN 18 2026
REST OF THE OVERNIGHT
N WINDS 5 KT. WAVES LESS THAN 1 FT. RAIN
AND SNOW LIKELY. VSBY 1 TO 3 NM.
TODAY
N WINDS 5 KT. WAVES LESS THAN 1 FT. SNOW AND RAIN LIKELY.
VSBY 1 TO 3 NM.
TONIGHT
NW 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
W WINDS 5 TO 10 KT. WAVES 1 FT.
TUE NIGHT
NE WINDS AROUND 5 KT. WAVES 1 FT.
WED
S WINDS 10 TO 15 KT. WAVES 1 FT.
THU
W WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ536-182300-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
308 AM EST SUN JAN 18 2026
REST OF THE OVERNIGHT
N WINDS 5 KT. WAVES LESS THAN 1 FT. RAIN
LIKELY WITH A SLIGHT CHANCE OF SNOW. VSBY 1 TO 3 NM.
TODAY
N WINDS 5 TO 10 KT. WAVES 1 FT. SNOW AND RAIN LIKELY. VSBY
1 TO 3 NM.
TONIGHT
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 KT. WAVES LESS THAN 1 FT.
TUE NIGHT
NE WINDS AROUND 5 KT. WAVES 1 FT.
WED
S WINDS 10 TO 15 KT. WAVES 1 FT.
THU
NW WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ537-182300-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
308 AM EST SUN JAN 18 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EST THIS MORNING
THROUGH LATE TONIGHT...
REST OF THE OVERNIGHT
NE WINDS 5 KT. WAVES FLAT. RAIN LIKELY.
VSBY 1 TO 3 NM.
TODAY
N WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
RAIN WITH SNOW LIKELY. VSBY 1 TO 3 NM.
TONIGHT...NW WINDS 10 TO 15 KT
BECOMING W 5 TO 10 KT LATE. GUSTS
UP TO 20 KT. WAVES 1 TO 2 FT.
MON
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
MON NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
TUE
NW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE NIGHT
NE WINDS AROUND 5 KT. WAVES 1 FT.
WED...S WINDS 10 TO 15 KT
BECOMING SW AFTER MIDNIGHT. WAVES 1 TO
2 FT.
THU
NW WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ530-182300-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
308 AM EST SUN JAN 18 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EST THIS MORNING
THROUGH LATE TONIGHT...
REST OF THE OVERNIGHT
N WINDS 5 KT. WAVES LESS THAN 1 FT. RAIN
AND SNOW LIKELY. VSBY 1 TO 3 NM.
TODAY
N WINDS 5 TO 10 KT. WAVES 1 FT. SNOW AND RAIN. VSBY 1 TO
3 NM.
TONIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
MON
SW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
MON NIGHT
W WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
TUE
W WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
TUE NIGHT...W WINDS 5 TO 10 KT
BECOMING NE AFTER MIDNIGHT. WAVES
1 FT OR LESS.
WED...S WINDS 10 TO 15 KT
BECOMING SW 5 TO 10 KT AFTER MIDNIGHT.
WAVES 1 FT.
THU
W WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ531-182300-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
308 AM EST SUN JAN 18 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EST THIS MORNING
THROUGH LATE TONIGHT...
REST OF THE OVERNIGHT
NE WINDS 5 KT. WAVES LESS THAN 1 FT. RAIN
AND SNOW LIKELY. VSBY 1 TO 3 NM.
TODAY
N WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
SNOW AND RAIN. VSBY 1 TO 3 NM.
TONIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
MON
SW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
MON NIGHT
W WINDS 15 TO 20 KT. WAVES 2 FT.
TUE
W WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
TUE NIGHT...NW WINDS 5 TO 10 KT
BECOMING NE AFTER MIDNIGHT. WAVES
1 FT OR LESS.
WED...S WINDS 15 TO 20 KT
BECOMING SW 10 TO 15 KT AFTER MIDNIGHT.
WAVES 1 TO 2 FT.
THU...W WINDS 10 TO 15 KT
BECOMING NW. WAVES 1 FT.
ANZ538-182300-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
308 AM EST SUN JAN 18 2026
REST OF THE OVERNIGHT
N WINDS 5 KT. WAVES FLAT. RAIN AND SNOW
LIKELY. VSBY 1 TO 3 NM.
TODAY
N WINDS 5 TO 10 KT. WAVES 1 FT. SNOW AND RAIN. VSBY 1 TO
3 NM.
TONIGHT
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
W WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
TUE
W WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
TUE NIGHT
N WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
WED...S WINDS 10 TO 15 KT
BECOMING SW 5 TO 10 KT AFTER MIDNIGHT.
WAVES 1 FT.
THU
W WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
ANZ539-182300-
CHESTER RIVER TO QUEENSTOWN MD-
308 AM EST SUN JAN 18 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EST THIS MORNING
THROUGH LATE TONIGHT...
REST OF THE OVERNIGHT
NE WINDS 5 KT. WAVES FLAT. RAIN LIKELY WITH
A SLIGHT CHANCE OF SNOW. VSBY 1 TO 3 NM.
TODAY
N WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE LATE MORNING
AND AFTERNOON. WAVES 1 TO 2 FT. SNOW AND RAIN. VSBY 1 TO 3 NM.
TONIGHT
NW WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON NIGHT
W WINDS 15 TO 20 KT. WAVES 2 FT.
TUE
W WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
TUE NIGHT...NW WINDS 5 TO 10 KT
BECOMING NE AFTER MIDNIGHT. WAVES
1 FT OR LESS.
WED...S WINDS 10 TO 15 KT
BECOMING SW AFTER MIDNIGHT. WAVES 1 TO
2 FT.
THU
W WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ532-182300-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
308 AM EST SUN JAN 18 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EST THIS MORNING
THROUGH LATE TONIGHT...
REST OF THE OVERNIGHT
N WINDS 5 KT. WAVES LESS THAN 1 FT. RAIN
LIKELY. VSBY 1 TO 3 NM.
TODAY
N WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
SNOW AND RAIN. VSBY 1 TO 3 NM.
TONIGHT...NW WINDS 10 TO 15 KT
BECOMING W 5 TO 10 KT LATE. GUSTS
UP TO 20 KT. WAVES 1 TO 2 FT.
MON
SW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
MON NIGHT
NW WINDS 15 TO 20 KT. WAVES 2 FT.
TUE
W WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
TUE NIGHT...NW WINDS 5 TO 10 KT
BECOMING NE AFTER MIDNIGHT. WAVES
1 FT OR LESS.
WED...S WINDS 15 TO 20 KT
BECOMING SW 10 TO 15 KT AFTER MIDNIGHT.
WAVES 2 TO 3 FT.
THU
W WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ540-182300-
EASTERN BAY-
308 AM EST SUN JAN 18 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EST THIS MORNING
THROUGH LATE TONIGHT...
REST OF THE OVERNIGHT
NE WINDS 5 KT. WAVES FLAT. RAIN LIKELY WITH
A SLIGHT CHANCE OF SNOW. VSBY 1 TO 3 NM.
TODAY
N WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT. SNOW
AND RAIN. VSBY 1 TO 3 NM.
TONIGHT
NW WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
MON
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
MON NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
TUE
W WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
TUE NIGHT...NW WINDS 5 TO 10 KT
BECOMING NE AFTER MIDNIGHT. WAVES
1 FT OR LESS.
WED...S WINDS 15 TO 20 KT
BECOMING SW 10 TO 15 KT AFTER MIDNIGHT.
WAVES 1 TO 2 FT.
THU
W WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ533-182300-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
308 AM EST SUN JAN 18 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EST THIS MORNING
THROUGH LATE TONIGHT...
REST OF THE OVERNIGHT
NE WINDS 5 KT. WAVES LESS THAN 1 FT. RAIN
LIKELY. VSBY 1 TO 3 NM.
TODAY
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. RAIN
WITH SNOW LIKELY. VSBY 1 TO 3 NM.
TONIGHT...NW WINDS 10 TO 15 KT
BECOMING W 5 TO 10 KT LATE. GUSTS
UP TO 20 KT. WAVES 2 FT.
MON
SW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
MON NIGHT
NW WINDS 15 TO 20 KT. WAVES 2 FT.
TUE
NW WINDS 10 TO 15 KT. WAVES 2 FT.
TUE NIGHT...NW WINDS 5 TO 10 KT
BECOMING NE AFTER MIDNIGHT. WAVES
1 FT.
WED...S WINDS 15 TO 20 KT
BECOMING SW 10 TO 15 KT AFTER MIDNIGHT.
WAVES 2 TO 3 FT.
THU
NW WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ541-182300-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
308 AM EST SUN JAN 18 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EST THIS MORNING
THROUGH LATE TONIGHT...
REST OF THE OVERNIGHT
NE WINDS 5 KT. WAVES FLAT. RAIN LIKELY.
VSBY 1 TO 3 NM.
TODAY
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
RAIN WITH SNOW LIKELY. VSBY 1 TO 3 NM.
TONIGHT...NW WINDS 10 TO 15 KT
BECOMING W 5 TO 10 KT LATE. GUSTS
UP TO 20 KT. WAVES 1 TO 2 FT.
MON
SW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
MON NIGHT
NW WINDS 15 TO 20 KT. WAVES 2 FT.
TUE
NW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
TUE NIGHT
N WINDS 5 KT. WAVES LESS THAN 1 FT.
WED...S WINDS 15 TO 20 KT
BECOMING SW 10 TO 15 KT AFTER MIDNIGHT.
WAVES 1 TO 2 FT.
THU
NW WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ542-182300-
PATUXENT RIVER TO BROOMES ISLAND MD-
308 AM EST SUN JAN 18 2026
REST OF THE OVERNIGHT
NE WINDS 5 KT. WAVES LESS THAN 1 FT. RAIN
LIKELY. VSBY 1 TO 3 NM.
TODAY
N WINDS 5 TO 10 KT. WAVES 1 FT. RAIN WITH SNOW LIKELY. VSBY
1 TO 3 NM.
TONIGHT
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. WAVES 1 FT.
TUE NIGHT
N WINDS AROUND 5 KT. WAVES 1 FT.
WED...S WINDS 10 TO 15 KT
BECOMING SW 5 TO 10 KT AFTER MIDNIGHT.
WAVES 1 FT.
THU
NW WINDS 5 TO 10 KT. WAVES 1 FT.
ANZ534-182300-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
308 AM EST SUN JAN 18 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EST THIS MORNING
THROUGH LATE TONIGHT...
REST OF THE OVERNIGHT
NE WINDS 5 KT. WAVES LESS THAN 1 FT. RAIN.
VSBY 1 TO 3 NM.
TODAY
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. RAIN
AND SNOW. VSBY 1 TO 3 NM.
TONIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 TO
3 FT. SNOW LIKELY. VSBY 1 TO 3 NM.
MON
SW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 2 TO 3 FT.
MON NIGHT
NW WINDS 15 TO 20 KT. WAVES 2 FT.
TUE
NW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
TUE NIGHT...NW WINDS 5 KT
BECOMING E AFTER MIDNIGHT. WAVES 1 FT.
WED...S WINDS 15 TO 20 KT
BECOMING SW 10 TO 15 KT AFTER MIDNIGHT.
WAVES 2 FT.
THU...W WINDS 10 TO 15 KT
BECOMING NW. WAVES 1 TO 2 FT.
ANZ543-182300-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
308 AM EST SUN JAN 18 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM EST THIS MORNING
THROUGH LATE TONIGHT...
REST OF THE OVERNIGHT
E WINDS 5 KT. WAVES FLAT. RAIN. VSBY 1 TO
3 NM.
TODAY
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT. WAVES 1 TO 2 FT.
RAIN AND SNOW. VSBY 1 TO 3 NM.
TONIGHT...NW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT
BECOMING W
5 TO 10 KT LATE. WAVES 2 FT. SNOW. VSBY 1 TO 3 NM.
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 10 TO 15 KT. WAVES 1 FT.
TUE NIGHT...NW WINDS 5 TO 10 KT
BECOMING E AFTER MIDNIGHT. WAVES
1 FT.
WED...S WINDS 15 TO 20 KT
BECOMING SW 10 TO 15 KT AFTER MIDNIGHT.
WAVES 1 TO 2 FT.
THU...W WINDS 10 TO 15 KT
BECOMING NW. WAVES 1 FT.
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