187
FZUS51 KLWX 181459
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
959 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.
ANZ500-182100-
959 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 TUESDAY INTO WEDNESDAY AHEAD OF ANOTHER POTENTIAL SYSTEM LATER
IN THE WEEK. SMALL CRAFT ADVISORIES WILL LIKELY BE NEEDED AT TIMES
THROUGH TUESDAY.
ANZ535-182100-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
959 AM EST SUN JAN 18 2026
REST OF TODAY
N WINDS 5 KT. WAVES LESS THAN 1 FT. PATCHY FOG LATE
THIS MORNING. A CHANCE OF RAIN WITH A SLIGHT CHANCE OF SNOW LATE
THIS MORNING, THEN A CHANCE OF SNOW THIS AFTERNOON. VSBY 1 TO 3 NM.
TONIGHT
NW WINDS AROUND 5 KT. WAVES 1 FT.
MON
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE LATE MORNING
AND AFTERNOON. 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.
ANZ536-182100-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
959 AM EST SUN JAN 18 2026
REST OF TODAY
N WINDS 10 KT. WAVES 1 FT. A CHANCE OF SNOW. A
CHANCE OF RAIN LATE THIS MORNING, THEN A SLIGHT CHANCE OF RAIN THIS
AFTERNOON. VSBY 1 TO 3 NM.
TONIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
MON...SW WINDS 10 TO 15 KT
BECOMING W LATE. GUSTS UP 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.
ANZ537-182100-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
959 AM EST SUN JAN 18 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF TODAY
N WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
PATCHY FOG LATE THIS MORNING. A CHANCE OF RAIN LATE THIS MORNING,
THEN RAIN AND SNOW THIS AFTERNOON. 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. GUSTS UP 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.
ANZ530-182100-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
959 AM EST SUN JAN 18 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF TODAY
N WINDS 5 TO 10 KT. WAVES 1 FT. PATCHY FOG LATE
THIS MORNING. RAIN AND SNOW LIKELY LATE THIS MORNING, THEN A CHANCE
OF SNOW AND RAIN THIS AFTERNOON. VSBY 1 TO 3 NM.
TONIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SNOW. VSBY
1 TO 3 NM.
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.
ANZ531-182100-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
959 AM EST SUN JAN 18 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF TODAY
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT. PATCHY FOG LATE THIS MORNING. A CHANCE OF RAIN AND SNOW. 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
BECOMING W WITH
GUSTS TO 25 KT LATE. 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.
ANZ538-182100-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
959 AM EST SUN JAN 18 2026
REST OF TODAY
N WINDS 5 TO 10 KT. WAVES 1 FT. PATCHY FOG LATE
THIS MORNING. A CHANCE OF SNOW. A CHANCE OF RAIN LATE THIS MORNING,
THEN A SLIGHT CHANCE OF RAIN THIS AFTERNOON. 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
BECOMING W WITH
GUSTS TO 20 KT LATE. 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.
ANZ539-182100-
CHESTER RIVER TO QUEENSTOWN MD-
959 AM EST SUN JAN 18 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF TODAY
N WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
PATCHY FOG LATE THIS MORNING. A CHANCE OF RAIN. A CHANCE OF SNOW
LATE THIS MORNING, THEN SNOW LIKELY THIS AFTERNOON. VSBY 1 TO 3 NM.
TONIGHT
NW WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
A CHANCE OF SNOW. VSBY 1 TO 3 NM.
MON...SW WINDS 10 TO 15 KT
BECOMING W LATE. GUSTS UP 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.
ANZ532-182100-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
959 AM EST SUN JAN 18 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF TODAY
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT. PATCHY FOG LATE THIS MORNING. A CHANCE OF RAIN. A CHANCE OF
SNOW LATE THIS MORNING, THEN SNOW LIKELY THIS AFTERNOON. 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
BECOMING W WITH
GUSTS TO 20 KT LATE. 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.
ANZ540-182100-
EASTERN BAY-
959 AM EST SUN JAN 18 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF TODAY
N WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
PATCHY FOG LATE THIS MORNING. SNOW LIKELY. RAIN LIKELY LATE THIS
MORNING, THEN A CHANCE OF RAIN THIS AFTERNOON. VSBY 1 TO 3 NM.
TONIGHT
NW WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT. SNOW
LIKELY. VSBY 1 TO 3 NM.
MON...SW WINDS 10 TO 15 KT
BECOMING W LATE. GUSTS UP 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.
ANZ533-182100-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
959 AM EST SUN JAN 18 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF TODAY
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES
2 FT. PATCHY FOG LATE THIS MORNING. RAIN LIKELY. SNOW LIKELY THIS
AFTERNOON. 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. SNOW LIKELY. VSBY 1 TO 3 NM.
MON...SW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT
BECOMING W LATE.
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.
ANZ541-182100-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
959 AM EST SUN JAN 18 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF TODAY
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT. RAIN LIKELY. PATCHY FOG. SNOW LIKELY THIS AFTERNOON. 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. SNOW LIKELY. VSBY 1 TO 3 NM.
MON...SW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT
BECOMING W WITH
GUSTS TO 20 KT LATE. 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.
ANZ542-182100-
PATUXENT RIVER TO BROOMES ISLAND MD-
959 AM EST SUN JAN 18 2026
REST OF TODAY
N WINDS 10 KT. WAVES 1 FT. RAIN LIKELY. PATCHY FOG.
SNOW THIS AFTERNOON. VSBY 1 TO 3 NM.
TONIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT. SNOW LIKELY. VSBY 1 TO
3 NM.
MON...SW WINDS 10 TO 15 KT
BECOMING W LATE. GUSTS UP 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.
ANZ534-182100-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
959 AM EST SUN JAN 18 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF TODAY
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES
2 FT. RAIN LATE THIS MORNING, THEN RAIN AND SNOW THIS AFTERNOON.
PATCHY FOG. VSBY 1 TO 3 NM.
TONIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 TO
3 FT. SNOW. 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.
ANZ543-182100-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
959 AM EST SUN JAN 18 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF TODAY
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT. RAIN LATE THIS MORNING, THEN RAIN AND SNOW THIS AFTERNOON.
PATCHY FOG. 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 1 TO 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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