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FZUS51 KLWX 060919
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
419 AM EST SAT DEC 6 2025
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.
ANZ500-062230-
419 AM EST SAT DEC 6 2025
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
AS THE EARLIER FRONTAL SYSTEM TRACKS AWAY FROM THE ATLANTIC COAST, A
WEAK AREA OF HIGH PRESSURE BUILDS OVER THE AREA THIS WEEKEND. A
STRONGER COLD FRONT CROSSES THE WATERS BY LATE SUNDAY. A STRONG AREA
OF CANADIAN HIGH PRESSURE BUILDS OVER THE REGION ON MONDAY INTO
TUESDAY. ANOTHER CLIPPER-LIKE SYSTEM MOVES THROUGH THE AREA BY MID-
WEEK. SMALL CRAFT ADVISORIES WILL LIKELY BE NEEDED ON MONDAY, AND
AGAIN TUESDAY THROUGH WEDNESDAY.
ANZ535-062230-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
419 AM EST SAT DEC 6 2025
REST OF THE OVERNIGHT
LIGHT WINDS. WAVES FLAT. A SLIGHT CHANCE OF
FREEZING DRIZZLE AND FREEZING RAIN. PATCHY FOG. VSBY 1 TO 3 NM.
TODAY
W WINDS AROUND 5 KT. WAVES FLAT.
TONIGHT
NW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SUN
E WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SUN NIGHT...SW WINDS AROUND 5 KT
BECOMING NW AFTER MIDNIGHT.
WAVES 1 FT.
MON
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
MON NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED...SW WINDS 10 TO 15 KT
BECOMING W 5 TO 10 KT AFTER MIDNIGHT.
WAVES 1 FT. A CHANCE OF RAIN AFTER MIDNIGHT.
ANZ536-062230-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
419 AM EST SAT DEC 6 2025
REST OF THE OVERNIGHT
NW WINDS 5 KT. WAVES FLAT. A SLIGHT CHANCE
OF RAIN, FREEZING RAIN AND FREEZING DRIZZLE. PATCHY FOG. VSBY 1 TO
3 NM.
TODAY
W WINDS AROUND 5 KT. WAVES FLAT. PATCHY FOG. VSBY 1 TO
3 NM.
TONIGHT
NW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SUN
E WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SUN NIGHT...SW WINDS AROUND 5 KT
BECOMING N 10 TO 15 KT AFTER
MIDNIGHT. WAVES 1 FT.
MON
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
MON NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
SW WINDS 10 TO 15 KT. WAVES 1 FT.
WED...SW WINDS 15 TO 20 KT
BECOMING W 10 TO 15 KT AFTER MIDNIGHT.
WAVES 1 TO 2 FT.
ANZ537-062230-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
419 AM EST SAT DEC 6 2025
REST OF THE OVERNIGHT
NW WINDS 5 KT. WAVES LESS THAN 1 FT. A
SLIGHT CHANCE OF RAIN. PATCHY FOG. VSBY 1 TO 3 NM.
TODAY
NW WINDS AROUND 5 KT. WAVES 1 FT OR LESS. PATCHY FOG. VSBY
1 TO 3 NM.
TONIGHT
NW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SUN
E WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SUN NIGHT...SW WINDS AROUND 5 KT
BECOMING N 15 TO 20 KT AFTER
MIDNIGHT. WAVES FLAT...BUILDING TO 2 FT AFTER MIDNIGHT.
MON
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
MON NIGHT
N WINDS 15 TO 20 KT. WAVES 2 TO 3 FT.
TUE...NW WINDS 5 KT
BECOMING SW 10 TO 15 KT. WAVES 1 TO 2 FT.
WED...SW WINDS 15 TO 20 KT
BECOMING W AFTER MIDNIGHT. WAVES 2 FT.
ANZ530-062230-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
419 AM EST SAT DEC 6 2025
REST OF THE OVERNIGHT
NW WINDS 5 KT. WAVES FLAT. A SLIGHT CHANCE
OF FREEZING DRIZZLE AND FREEZING RAIN.
TODAY
W WINDS AROUND 5 KT. WAVES 1 FT.
TONIGHT
NW WINDS AROUND 5 KT. WAVES 1 FT.
SUN
W WINDS AROUND 5 KT. WAVES 1 FT.
SUN NIGHT...W WINDS AROUND 5 KT
BECOMING NW 10 TO 15 KT WITH
GUSTS TO 20 KT AFTER MIDNIGHT. WAVES 1 FT.
MON
N WINDS 15 TO 20 KT. WAVES 1 FT.
MON NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT.
TUE...SE WINDS 5 TO 10 KT
BECOMING SW 10 TO 15 KT. WAVES 1 FT.
WED...SW WINDS 15 TO 20 KT
BECOMING W AFTER MIDNIGHT. WAVES 1 TO
2 FT. A CHANCE OF RAIN.
ANZ531-062230-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
419 AM EST SAT DEC 6 2025
REST OF THE OVERNIGHT
NW WINDS 5 KT. WAVES FLAT. A SLIGHT CHANCE
OF RAIN AND FREEZING DRIZZLE. VSBY 1 TO 3 NM.
TODAY
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
TONIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
W WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN NIGHT...SW WINDS 5 TO 10 KT
BECOMING NW 15 TO 20 KT AFTER
MIDNIGHT. WAVES 1 TO 2 FT.
MON
N WINDS 15 TO 20 KT. WAVES 2 TO 3 FT.
MON NIGHT
N WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
TUE...E WINDS 5 KT...BECOMING SW 10 TO 15 KT. WAVES FLAT
BUILDING
TO 2 FT.
WED...SW WINDS 15 TO 20 KT
BECOMING W AFTER MIDNIGHT. WAVES 2 TO
3 FT. A CHANCE OF RAIN THROUGH THE NIGHT.
ANZ538-062230-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
419 AM EST SAT DEC 6 2025
REST OF THE OVERNIGHT
LIGHT WINDS. WAVES FLAT. A SLIGHT CHANCE OF
FREEZING DRIZZLE.
TODAY
W WINDS AROUND 5 KT. WAVES FLAT.
TONIGHT
W WINDS AROUND 5 KT. WAVES FLAT.
SUN
W WINDS AROUND 5 KT. WAVES FLAT.
SUN NIGHT...W WINDS 5 KT
BECOMING NW 10 TO 15 KT AFTER MIDNIGHT.
WAVES 1 FT OR LESS.
MON
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
MON NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TUE...SE WINDS 5 TO 10 KT
BECOMING SW. WAVES 1 FT OR LESS.
WED...SW WINDS 10 TO 15 KT
BECOMING W AFTER MIDNIGHT. WAVES 1 FT.
A CHANCE OF RAIN THROUGH THE NIGHT.
ANZ539-062230-
CHESTER RIVER TO QUEENSTOWN MD-
419 AM EST SAT DEC 6 2025
REST OF THE OVERNIGHT
N WINDS 5 KT. WAVES FLAT. A SLIGHT CHANCE
OF RAIN. PATCHY FOG. VSBY 1 TO 3 NM.
TODAY
W WINDS 5 KT. WAVES FLAT.
TONIGHT
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN
E WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SUN NIGHT...SW WINDS AROUND 5 KT
BECOMING NW 10 TO 15 KT WITH
GUSTS TO 20 KT AFTER MIDNIGHT. WAVES 1 TO 2 FT.
MON
N WINDS 15 TO 20 KT. WAVES 2 FT.
MON NIGHT
N WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
TUE...SE WINDS 5 TO 10 KT
BECOMING SW 10 TO 15 KT. WAVES 1 FT OR
LESS...BUILDING TO 2 FT.
WED...SW WINDS 15 TO 20 KT
BECOMING W AFTER MIDNIGHT. WAVES 2 FT.
A CHANCE OF RAIN THROUGH THE NIGHT.
ANZ532-062230-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
419 AM EST SAT DEC 6 2025
REST OF THE OVERNIGHT
NW WINDS 5 KT. WAVES FLAT. A SLIGHT CHANCE
OF RAIN. PATCHY FOG. VSBY 1 TO 3 NM.
TODAY
W WINDS 5 KT. WAVES FLAT.
TONIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
E WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN NIGHT...SW WINDS 5 TO 10 KT
BECOMING NW 15 TO 20 KT AFTER
MIDNIGHT. WAVES 1 TO 2 FT.
MON
N WINDS 20 TO 25 KT. WAVES 3 FT.
MON NIGHT...N WINDS 15 TO 20 KT
BECOMING NE 5 TO 10 KT AFTER
MIDNIGHT. WAVES 1 TO 2 FT.
TUE...SE WINDS 10 TO 15 KT
BECOMING SW 15 TO 20 KT. WAVES 1 TO
2 FT...BUILDING TO 3 FT.
WED...SW WINDS 20 TO 25 KT
BECOMING W 15 TO 20 KT AFTER MIDNIGHT.
WAVES 3 FT. A CHANCE OF RAIN THROUGH THE NIGHT.
ANZ540-062230-
EASTERN BAY-
419 AM EST SAT DEC 6 2025
REST OF THE OVERNIGHT
NW WINDS 5 KT. WAVES FLAT. A SLIGHT CHANCE
OF RAIN. PATCHY FOG. VSBY 1 TO 3 NM.
TODAY
NW WINDS AROUND 5 KT. WAVES FLAT.
TONIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SUN
E WINDS 5 KT. WAVES FLAT.
SUN NIGHT...SW WINDS 5 KT
BECOMING NW 15 TO 20 KT AFTER MIDNIGHT.
WAVES 1 FT.
MON
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
MON NIGHT
N WINDS 10 TO 15 KT. WAVES 1 FT.
TUE...SE WINDS 5 KT...BECOMING SW 10 TO 15 KT. WAVES 1 FT OR LESS
BUILDING TO 2 FT.
WED...SW WINDS 15 TO 20 KT
BECOMING W AFTER MIDNIGHT. WAVES 2 TO
3 FT. A CHANCE OF RAIN THROUGH THE NIGHT.
ANZ533-062230-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
419 AM EST SAT DEC 6 2025
REST OF THE OVERNIGHT
NW WINDS 5 KT. WAVES LESS THAN 1 FT. A
SLIGHT CHANCE OF RAIN. PATCHY FOG. VSBY 1 TO 3 NM.
TODAY
NW WINDS 5 KT. WAVES FLAT.
TONIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
E WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN NIGHT...SW WINDS 5 TO 10 KT
BECOMING NW 15 TO 20 KT WITH
GUSTS TO 25 KT AFTER MIDNIGHT. WAVES 1 FT... BUILDING TO 3 FT AFTER
MIDNIGHT.
MON
N WINDS 20 TO 25 KT. WAVES 4 FT.
MON NIGHT
N WINDS 15 TO 20 KT. GUSTS UP TO 25 KT IN THE EVENING.
WAVES 2 TO 3 FT.
TUE...N WINDS 5 TO 10 KT
BECOMING SW 15 TO 20 KT. WAVES 1 TO
2 FT...BUILDING TO 3 FT.
WED...SW WINDS 25 TO 30 KT
BECOMING W 15 TO 20 KT AFTER MIDNIGHT.
WAVES 3 FT. A CHANCE OF RAIN THROUGH THE NIGHT.
ANZ541-062230-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
419 AM EST SAT DEC 6 2025
REST OF THE OVERNIGHT
NW WINDS 5 KT. WAVES FLAT. A SLIGHT CHANCE
OF RAIN. PATCHY FOG. VSBY 1 TO 3 NM.
TODAY
NW WINDS 5 KT. WAVES FLAT.
TONIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
E WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN NIGHT...SW WINDS 5 KT
BECOMING N 15 TO 20 KT AFTER MIDNIGHT.
WAVES 1 TO 2 FT.
MON
N WINDS 20 TO 25 KT. WAVES 2 FT.
MON NIGHT
NE WINDS 15 TO 20 KT. WAVES 1 TO 2 FT.
TUE...SE WINDS 5 KT
BECOMING SW 15 TO 20 KT. WAVES 1 TO 2 FT.
WED...SW WINDS 20 TO 25 KT
BECOMING W 15 TO 20 KT AFTER MIDNIGHT.
WAVES 2 TO 3 FT. A CHANCE OF RAIN THROUGH THE NIGHT.
ANZ542-062230-
PATUXENT RIVER TO BROOMES ISLAND MD-
419 AM EST SAT DEC 6 2025
REST OF THE OVERNIGHT
NW WINDS 5 KT. WAVES LESS THAN 1 FT. A
SLIGHT CHANCE OF RAIN. PATCHY FOG. VSBY 1 TO 3 NM.
TODAY
NW WINDS AROUND 5 KT. WAVES 1 FT. PATCHY FOG. VSBY 1 TO
3 NM.
TONIGHT
NW WINDS AROUND 5 KT. WAVES 1 FT.
SUN
E WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN NIGHT...SW WINDS AROUND 5 KT
BECOMING N 10 TO 15 KT WITH
GUSTS TO 20 KT AFTER MIDNIGHT. WAVES 1 FT.
MON
N WINDS 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
MON NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
TUE...NW WINDS AROUND 5 KT
BECOMING SW 10 TO 15 KT. WAVES 1 FT.
WED...SW WINDS 10 TO 15 KT
BECOMING W AFTER MIDNIGHT. WAVES 1 FT.
A CHANCE OF RAIN AFTER MIDNIGHT.
ANZ534-062230-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
419 AM EST SAT DEC 6 2025
REST OF THE OVERNIGHT
NW WINDS 10 KT. WAVES 1 FT. A SLIGHT CHANCE
OF RAIN. PATCHY FOG. VSBY 1 TO 3 NM.
TODAY
NW WINDS 5 TO 10 KT. WAVES 1 FT. PATCHY FOG. VSBY 1 TO
3 NM.
TONIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SUN...NE WINDS 5 TO 10 KT
BECOMING S IN THE AFTERNOON. WAVES
1 FT.
SUN NIGHT...SW WINDS 5 TO 10 KT
BECOMING N 15 TO 20 KT AFTER
MIDNIGHT. WAVES 1 FT...BUILDING TO 3 FT AFTER MIDNIGHT.
MON
N WINDS 20 TO 25 KT. WAVES 4 FT.
MON NIGHT...N WINDS 20 TO 25 KT
DIMINISHING TO 10 TO 15 KT AFTER
MIDNIGHT. WAVES 3 FT.
TUE...N WINDS 5 TO 10 KT
BECOMING SW 15 TO 20 KT. WAVES 1 TO
2 FT...BUILDING TO 3 FT.
WED...SW WINDS 20 TO 25 KT
BECOMING W AFTER MIDNIGHT. WAVES 3 FT.
A CHANCE OF RAIN AFTER MIDNIGHT.
ANZ543-062230-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
419 AM EST SAT DEC 6 2025
REST OF THE OVERNIGHT
N WINDS 10 KT. WAVES 1 FT. A SLIGHT CHANCE
OF RAIN. PATCHY FOG. VSBY 1 TO 3 NM.
TODAY
NW WINDS 5 TO 10 KT. WAVES 1 FT. PATCHY FOG. VSBY 1 TO
3 NM.
TONIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SUN...NE WINDS 5 TO 10 KT
BECOMING S IN THE AFTERNOON. WAVES 1 FT
OR LESS.
SUN NIGHT...SW WINDS 5 KT
BECOMING N 15 TO 20 KT AFTER MIDNIGHT.
WAVES FLAT...BUILDING TO 2 FT AFTER MIDNIGHT.
MON
N WINDS 20 TO 25 KT. WAVES 2 FT.
MON NIGHT
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
TUE...N WINDS 5 TO 10 KT
BECOMING SW 15 TO 20 KT. WAVES 1 TO
2 FT.
WED...SW WINDS 20 TO 25 KT
BECOMING W AFTER MIDNIGHT. WAVES 2 TO
3 FT.
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