615
FZUS51 KLWX 220258
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
958 PM EST WED JAN 21 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.
ANZ500-220900-
958 PM EST WED JAN 21 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
A COLD FRONT WILL CROSS THE REGION THURSDAY AFTERNOON WITH A SECOND
STRONGER ONE FRIDAY AFTERNOON. ARCTIC HIGH PRESSURE WILL BUILD
ACROSS THE MIDWEST, GREAT LAKES AND NORTHEAST THIS WEEKEND AS LOW
PRESSURE DEVELOPS AND LIFTS UP FROM THE SOUTH. SMALL CRAFT
ADVISORIES WILL LIKELY BE NEEDED FRIDAY INTO THE WEEKEND. GALE
CONDITIONS ARE POSSIBLE ACROSS THE SOUTHERN WATERS LATE FRIDAY
NIGHT.
ANZ535-220900-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
958 PM EST WED JAN 21 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM EST THURSDAY
REST OF TONIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES
1 FT.
THU
W WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
THU NIGHT
NW WINDS AROUND 5 KT. WAVES 1 FT.
FRI
NW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. A
CHANCE OF LIGHT FREEZING SPRAY.
SAT
N WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SNOW.
SAT NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT. SNOW. A CHANCE OF
LIGHT FREEZING SPRAY.
SUN
N WINDS 5 TO 10 KT. WAVES 1 FT. SNOW. A CHANCE OF SNOW AFTER
MIDNIGHT.
MON
NW WINDS 10 TO 15 KT. WAVES 1 FT.
ANZ536-220900-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
958 PM EST WED JAN 21 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM EST THURSDAY
REST OF TONIGHT
SW WINDS 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
THU
W WINDS 5 TO 10 KT. WAVES 1 FT.
THU NIGHT
N WINDS AROUND 5 KT. WAVES 1 FT.
FRI...E WINDS AROUND 5 KT
BECOMING W IN THE AFTERNOON. WAVES
1 FT.
FRI NIGHT
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT. A
CHANCE OF LIGHT FREEZING SPRAY.
SAT...N WINDS 15 TO 20 KT
DIMINISHING TO 5 TO 10 KT IN THE
AFTERNOON. WAVES 1 TO 2 FT. A CHANCE OF SNOW.
SAT NIGHT
NE WINDS 10 TO 15 KT. WAVES 1 FT. SNOW. A CHANCE OF
LIGHT FREEZING SPRAY.
SUN...N WINDS 10 TO 15 KT
DIMINISHING TO 5 TO 10 KT AFTER
MIDNIGHT. WAVES 1 FT. SNOW.
MON
NW WINDS 10 TO 15 KT. WAVES 1 FT.
ANZ537-220900-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
958 PM EST WED JAN 21 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM EST THURSDAY
REST OF TONIGHT
SW WINDS 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
THU...SW WINDS 10 TO 15 KT
BECOMING W 5 TO 10 KT LATE. WAVES 1 TO
2 FT.
THU NIGHT
N WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
FRI
NE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
FRI NIGHT
N WINDS 20 TO 25 KT. WAVES 2 TO 3 FT. A CHANCE OF LIGHT
FREEZING SPRAY.
SAT
N WINDS 15 TO 20 KT. GUSTS UP TO 25 KT IN THE MORNING. WAVES
2 TO 3 FT. A CHANCE OF SNOW.
SAT NIGHT
NE WINDS 15 TO 20 KT. WAVES 2 TO 3 FT. SNOW. A CHANCE
OF LIGHT FREEZING SPRAY.
SUN...N WINDS 15 TO 20 KT
DIMINISHING TO 10 TO 15 KT AFTER
MIDNIGHT. WAVES 2 TO 3 FT. FREEZING RAIN AND SNOW, THEN A CHANCE OF
SNOW AFTER MIDNIGHT.
MON
NW WINDS 15 TO 20 KT. WAVES 2 FT. A CHANCE OF SNOW IN THE
MORNING.
ANZ530-220900-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
958 PM EST WED JAN 21 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM EST THURSDAY
REST OF TONIGHT
SW WINDS 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. A
SLIGHT CHANCE OF SNOW LATE THIS EVENING WITH VSBY 1 TO 3 NM.
THU
W WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
THU NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
W WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
FRI NIGHT
NW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT. A
CHANCE OF LIGHT FREEZING SPRAY.
SAT
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE MORNING. WAVES
1 FT.
SAT NIGHT
NE WINDS 10 TO 15 KT. WAVES 1 FT. SNOW. A CHANCE OF
LIGHT FREEZING SPRAY.
SUN...NE WINDS 10 TO 15 KT
BECOMING N 5 TO 10 KT AFTER MIDNIGHT.
WAVES 1 TO 2 FT. SNOW. A CHANCE OF SNOW AFTER MIDNIGHT.
MON
NW WINDS 15 TO 20 KT. WAVES 1 TO 2 FT. A CHANCE OF SNOW IN
THE MORNING.
ANZ531-220900-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
958 PM EST WED JAN 21 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM EST THURSDAY
REST OF TONIGHT
SW WINDS 15 TO 20 KT. WAVES 2 TO 3 FT.
THU...SW WINDS 10 TO 15 KT
BECOMING W IN THE AFTERNOON. GUSTS UP
TO 20 KT. WAVES 2 FT.
THU NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
W WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
WAVES 1 TO 2 FT.
FRI NIGHT
NW WINDS 20 TO 25 KT. WAVES 3 FT. A CHANCE OF LIGHT
FREEZING SPRAY.
SAT...N WINDS 15 TO 20 KT
DIMINISHING TO 5 TO 10 KT IN THE
AFTERNOON. WAVES 1 TO 2 FT.
SAT NIGHT
NE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER MIDNIGHT.
WAVES 1 TO 2 FT. SNOW. A CHANCE OF LIGHT FREEZING SPRAY.
SUN...NE WINDS 15 TO 20 KT
BECOMING N 10 TO 15 KT AFTER MIDNIGHT.
WAVES 1 TO 2 FT. SNOW. A CHANCE OF SNOW AFTER MIDNIGHT.
MON
NW WINDS 15 TO 20 KT. WAVES 2 TO 3 FT. A CHANCE OF SNOW IN
THE MORNING.
ANZ538-220900-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
958 PM EST WED JAN 21 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM EST THURSDAY
REST OF TONIGHT
SW WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
THU
W WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
THU NIGHT
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI...W WINDS 5 KT
INCREASING TO 10 TO 15 KT IN THE AFTERNOON.
WAVES 1 FT OR LESS.
FRI NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A
CHANCE OF LIGHT FREEZING SPRAY.
SAT
N WINDS 5 TO 10 KT. WAVES 1 FT.
SAT NIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. SNOW. A CHANCE
OF LIGHT FREEZING SPRAY.
SUN...NE WINDS 10 TO 15 KT
BECOMING N 5 TO 10 KT AFTER MIDNIGHT.
WAVES 1 FT. SNOW. A CHANCE OF SNOW AFTER MIDNIGHT.
MON
NW WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SNOW IN THE
MORNING.
ANZ539-220900-
CHESTER RIVER TO QUEENSTOWN MD-
958 PM EST WED JAN 21 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM EST THURSDAY
REST OF TONIGHT
SW WINDS 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
THU
W WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
THU NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI...NW WINDS 5 KT
BECOMING W 10 TO 15 KT IN THE AFTERNOON.
WAVES 1 TO 2 FT.
FRI NIGHT
NW WINDS 20 TO 25 KT. WAVES 3 FT. A CHANCE OF LIGHT
FREEZING SPRAY.
SAT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
SAT NIGHT
NE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT AFTER MIDNIGHT.
WAVES 1 FT. SNOW. A CHANCE OF LIGHT FREEZING SPRAY.
SUN...NE WINDS 10 TO 15 KT
BECOMING N AFTER MIDNIGHT. WAVES 1 TO
2 FT. SNOW. A CHANCE OF SNOW AFTER MIDNIGHT.
MON
NW WINDS 15 TO 20 KT. WAVES 2 TO 3 FT. A CHANCE OF SNOW IN
THE MORNING.
ANZ532-220900-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
958 PM EST WED JAN 21 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM EST THURSDAY
REST OF TONIGHT
SW WINDS 15 TO 20 KT. WAVES 3 FT.
THU...SW WINDS 10 TO 15 KT
BECOMING W 5 TO 10 KT IN THE
AFTERNOON. WAVES 1 TO 2 FT.
THU NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI...NW WINDS 5 KT
BECOMING W 10 TO 15 KT IN THE AFTERNOON.
WAVES 1 FT OR LESS.
FRI NIGHT
NW WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT. A
CHANCE OF LIGHT FREEZING SPRAY.
SAT...N WINDS 15 TO 20 KT
DIMINISHING TO 10 KT IN THE AFTERNOON.
WAVES 2 TO 3 FT. A CHANCE OF SNOW.
SAT NIGHT
NE WINDS 15 TO 20 KT. WAVES 1 TO 2 FT. SNOW. A CHANCE
OF LIGHT FREEZING SPRAY.
SUN...NE WINDS 15 TO 20 KT
BECOMING N 10 TO 15 KT AFTER MIDNIGHT.
WAVES 2 TO 3 FT. SNOW.
MON
NW WINDS 20 TO 25 KT. WAVES 2 TO 3 FT. A CHANCE OF SNOW IN
THE MORNING.
ANZ540-220900-
EASTERN BAY-
958 PM EST WED JAN 21 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM EST THURSDAY
REST OF TONIGHT
SW WINDS 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
THU...SW WINDS 10 TO 15 KT
BECOMING NW 5 TO 10 KT LATE. WAVES
1 TO 2 FT.
THU NIGHT
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI...NW WINDS 5 KT
BECOMING W 10 TO 15 KT IN THE AFTERNOON.
WAVES 1 FT OR LESS.
FRI NIGHT
NW WINDS 20 TO 25 KT. WAVES 2 FT. A CHANCE OF LIGHT
FREEZING SPRAY.
SAT...N WINDS 15 TO 20 KT
DIMINISHING TO 5 TO 10 KT IN THE
AFTERNOON. WAVES 1 TO 2 FT. A CHANCE OF SNOW.
SAT NIGHT...NE WINDS 5 TO 10 KT
INCREASING TO 15 TO 20 KT AFTER
MIDNIGHT. WAVES 1 TO 2 FT. SNOW. A CHANCE OF LIGHT FREEZING SPRAY.
SUN
N WINDS 15 TO 20 KT. WAVES 1 TO 2 FT. SNOW.
MON
NW WINDS 15 TO 20 KT. WAVES 2 FT. A CHANCE OF SNOW IN THE
MORNING.
ANZ533-220900-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
958 PM EST WED JAN 21 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM EST THURSDAY
REST OF TONIGHT
SW WINDS 20 KT. WAVES 2 TO 3 FT.
THU...SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING W 5 TO
10 KT LATE. WAVES 1 TO 2 FT.
THU NIGHT
N WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI...N WINDS 5 KT
BECOMING W 10 TO 15 KT IN THE AFTERNOON. WAVES
1 FT.
FRI NIGHT
N WINDS 25 TO 30 KT. WAVES 4 FT. A CHANCE OF LIGHT
FREEZING SPRAY.
SAT...N WINDS 20 TO 25 KT
DIMINISHING TO 10 TO 15 KT IN THE
AFTERNOON. WAVES 4 FT...SUBSIDING TO 2 FT IN THE AFTERNOON. A CHANCE
OF SNOW.
SAT NIGHT
NE WINDS 15 TO 20 KT. GUSTS UP TO 25 KT AFTER MIDNIGHT.
WAVES 2 TO 3 FT. SNOW. A CHANCE OF LIGHT FREEZING SPRAY.
SUN...NE WINDS 20 TO 25 KT
BECOMING N 10 TO 15 KT AFTER MIDNIGHT.
WAVES 2 TO 3 FT. SNOW.
MON
NW WINDS 20 TO 25 KT. WAVES 3 FT. A CHANCE OF SNOW IN THE
MORNING.
ANZ541-220900-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
958 PM EST WED JAN 21 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM EST THURSDAY
REST OF TONIGHT
SW WINDS 20 KT. WAVES 2 FT.
THU...SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING NW 5 TO
10 KT LATE. WAVES 1 TO 2 FT.
THU NIGHT
N WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
FRI NIGHT
N WINDS 25 TO 30 KT. WAVES 3 FT. A CHANCE OF LIGHT
FREEZING SPRAY.
SAT
N WINDS 15 TO 20 KT. GUSTS UP TO 25 KT IN THE MORNING. WAVES
1 TO 2 FT. A CHANCE OF SNOW.
SAT NIGHT
NE WINDS 15 TO 20 KT. WAVES 1 TO 2 FT. SNOW. A CHANCE
OF LIGHT FREEZING SPRAY.
SUN...NE WINDS 20 TO 25 KT
BECOMING N 10 TO 15 KT. WAVES 2 FT.
SNOW.
MON
NW WINDS 20 TO 25 KT. WAVES 2 TO 3 FT. A CHANCE OF SNOW IN
THE MORNING.
ANZ542-220900-
PATUXENT RIVER TO BROOMES ISLAND MD-
958 PM EST WED JAN 21 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM EST THURSDAY
REST OF TONIGHT
SW WINDS 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
THU
W WINDS 5 TO 10 KT. WAVES 1 FT.
THU NIGHT
N WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI...NE WINDS 5 KT
BECOMING W IN THE AFTERNOON. WAVES 1 FT.
FRI NIGHT
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 1 FT. A
CHANCE OF LIGHT FREEZING SPRAY.
SAT
N WINDS 10 TO 15 KT. GUSTS UP TO 25 KT IN THE MORNING. WAVES
1 FT. A CHANCE OF SNOW.
SAT NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SNOW. A CHANCE OF LIGHT FREEZING SPRAY.
SUN...N WINDS 10 TO 15 KT
BECOMING 10 KT AFTER MIDNIGHT. WAVES
1 FT. SNOW.
MON
NW WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SNOW IN THE
MORNING.
ANZ534-220900-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
958 PM EST WED JAN 21 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM EST THURSDAY
REST OF TONIGHT
SW WINDS 15 TO 20 KT. WAVES 3 FT. A SLIGHT CHANCE
OF RAIN WITH VSBY 1 TO 3 NM.
THU...SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING W 5 TO
10 KT LATE. WAVES 2 FT.
THU NIGHT
N WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI
N WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
N WINDS 25 TO 30 KT. WAVES 4 FT. A CHANCE OF LIGHT
FREEZING SPRAY.
SAT...N WINDS 20 TO 25 KT
DIMINISHING TO 10 TO 15 KT IN THE
AFTERNOON. WAVES 3 FT. A CHANCE OF SNOW.
SAT NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 TO
3 FT. SNOW. A CHANCE OF LIGHT FREEZING SPRAY.
SUN
N WINDS 15 TO 20 KT. WAVES 3 FT. SNOW. FREEZING RAIN AND RAIN
THROUGH THE NIGHT, THEN A CHANCE OF SNOW AFTER MIDNIGHT.
MON
NW WINDS 20 TO 25 KT. WAVES 3 FT. A CHANCE OF SNOW IN THE
MORNING.
ANZ543-220900-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
958 PM EST WED JAN 21 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM EST THURSDAY
REST OF TONIGHT
SW WINDS 15 TO 20 KT. WAVES 2 FT.
THU
W WINDS 10 TO 15 KT. GUSTS UP TO 20 KT UNTIL LATE AFTERNOON.
WAVES 1 TO 2 FT.
THU NIGHT
N WINDS 5 KT. WAVES LESS THAN 1 FT.
FRI
N WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 2 TO
3 FT. A CHANCE OF LIGHT FREEZING SPRAY.
SAT...N WINDS 20 TO 25 KT
DIMINISHING TO 10 TO 15 KT IN THE
AFTERNOON. WAVES 2 FT. A CHANCE OF SNOW.
SAT NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 1 TO
2 FT. SNOW. A CHANCE OF LIGHT FREEZING SPRAY.
SUN...NE WINDS 15 TO 20 KT
BECOMING N AFTER MIDNIGHT. WAVES 2 FT.
RAIN, SNOW. FREEZING RAIN THROUGH THE NIGHT.
MON
NW WINDS 20 TO 25 KT. WAVES 2 FT. A CHANCE OF SNOW IN THE
MORNING.
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