745
FZUS51 KLWX 222357
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
757 PM EDT TUE SEP 22 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.
ANZ500-230800-
757 PM EDT TUE SEP 22 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
A STRONG AREA OF HIGH PRESSURE WILL REMAIN IN PLACE TO OUR NORTH
THROUGH MUCH OF THE WEEK LEADING TO A PROLONGED PERIOD OF ONSHORE
FLOW. A STRONG COASTAL LOW WILL THEN DEVELOP IN THE ATLANTIC TOWARD
THE END OF THE WEEK. SMALL CRAFT ADVISORIES WILL LIKELY BE NEEDED
FOR MUCH OF THE THURSDAY THROUGH SATURDAY TIME PERIOD, AND A FEW
LOW- END GALE GUSTS CAN'T BE RULED OUT.
ANZ535-230800-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
757 PM EDT TUE SEP 22 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE WEDNESDAY NIGHT
TONIGHT
NE WINDS 10 KT WITH GUSTS TO 25 KT. WAVES 1 FT. RAIN WITH
PATCHY DRIZZLE. PATCHY FOG. VSBY 1 TO 3 NM.
WED
NE WINDS 10 KT WITH GUSTS TO 25 KT. WAVES 1 FT. RAIN LIKELY.
WED NIGHT
NE WINDS 5 TO 10 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
THU
NE WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
THU NIGHT
N WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
N WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
FRI NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
SAT
NW WINDS 10 TO 15 KT. WAVES 1 FT.
SUN
NW WINDS 10 TO 15 KT. WAVES 1 FT.
ANZ536-230800-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
757 PM EDT TUE SEP 22 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE WEDNESDAY NIGHT
TONIGHT
NE WINDS 15 KT WITH GUSTS TO 30 KT. WAVES 2 FT. PATCHY
DRIZZLE. RAIN. PATCHY FOG. VSBY 1 TO 3 NM.
WED
NE WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT. RAIN.
WED NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 2 FT.
THU
NE WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
THU NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
FRI
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
FRI NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
SAT
NW WINDS 15 TO 20 KT. WAVES 1 TO 2 FT.
SUN
NW WINDS 10 TO 15 KT. WAVES 1 FT.
ANZ537-230800-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
757 PM EDT TUE SEP 22 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EDT WEDNESDAY
...GALE WARNING IN EFFECT FROM 6 AM EDT WEDNESDAY THROUGH LATE
WEDNESDAY NIGHT...
TONIGHT
NE WINDS 25 KT WITH GUSTS TO 30 KT. WAVES 4 FT. RAIN
LIKELY WITH PATCHY DRIZZLE. PATCHY FOG. VSBY 1 TO 3 NM.
WED
NE WINDS 20 TO 25 KT WITH GUSTS TO 35 KT. WAVES 5 FT. RAIN
LIKELY.
WED NIGHT
NE WINDS 20 TO 25 KT WITH GUSTS TO 40 KT. WAVES 5 FT.
THU
NE WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 4 FT.
THU NIGHT
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 4 FT.
FRI
N WINDS 20 TO 25 KT. WAVES 3 FT.
FRI NIGHT
N WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
SAT
NW WINDS 15 TO 20 KT. WAVES 2 TO 3 FT.
SUN
NW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
ANZ530-230800-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
757 PM EDT TUE SEP 22 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE WEDNESDAY NIGHT
TONIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 2 FT.
PATCHY FOG THIS EVENING. RAIN LIKELY WITH PATCHY DRIZZLE THIS
EVENING, THEN A CHANCE OF RAIN WITH PATCHY DRIZZLE AFTER MIDNIGHT.
VSBY 1 TO 3 NM THIS EVENING.
WED
NE WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 2 FT. A
CHANCE OF RAIN.
WED NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 2 FT.
THU
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
THU NIGHT...N WINDS 5 TO 10 KT
INCREASING TO 15 TO 20 KT WITH
GUSTS TO 25 KT AFTER MIDNIGHT. WAVES 1 TO 2 FT.
FRI
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
FRI NIGHT
N WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 2 FT.
SAT
N WINDS 15 TO 20 KT. WAVES 2 FT. A CHANCE OF SHOWERS THROUGH
THE NIGHT.
SUN
N WINDS 15 TO 20 KT. WAVES 1 TO 2 FT.
ANZ531-230800-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
757 PM EDT TUE SEP 22 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE WEDNESDAY NIGHT
TONIGHT
NE WINDS 20 KT WITH GUSTS TO 30 KT. WAVES 3 FT. PATCHY
FOG THIS EVENING. RAIN WITH PATCHY DRIZZLE THIS EVENING, THEN RAIN
LIKELY WITH PATCHY DRIZZLE AFTER MIDNIGHT. VSBY 1 TO 3 NM THIS
EVENING.
WED
NE WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 3 FT. A
CHANCE OF RAIN.
WED NIGHT
NE WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
THU
NE WINDS 15 TO 20 KT. GUSTS UP TO 30 KT IN THE MORNING. WAVES
3 FT.
THU NIGHT
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 TO
3 FT.
FRI
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
FRI NIGHT
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
SAT
N WINDS 20 TO 25 KT. WAVES 3 FT.
SUN
N WINDS 15 TO 20 KT. WAVES 2 TO 3 FT.
ANZ538-230800-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
757 PM EDT TUE SEP 22 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE WEDNESDAY NIGHT
TONIGHT
NE WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT. PATCHY
FOG THIS EVENING. RAIN WITH PATCHY DRIZZLE. VSBY 1 TO 3 NM.
WED
NE WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT. A
CHANCE OF RAIN.
WED NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 30 KT. WAVES 2 FT.
THU
NE WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 TO 2 FT.
THU NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
FRI
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
FRI NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
SAT
N WINDS 15 TO 20 KT. WAVES 1 TO 2 FT.
SUN
NW WINDS 10 TO 15 KT. WAVES 1 FT.
ANZ539-230800-
CHESTER RIVER TO QUEENSTOWN MD-
757 PM EDT TUE SEP 22 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE WEDNESDAY NIGHT
TONIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 2 TO
3 FT. PATCHY FOG THIS EVENING. RAIN WITH PATCHY DRIZZLE, MAINLY THIS
EVENING WITH VSBY 1 TO 3 NM.
WED
NE WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 2 TO 3 FT. A
CHANCE OF RAIN.
WED NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 2 TO
3 FT.
THU...NE WINDS 15 TO 20 KT. GUSTS UP TO 30 KT
DIMINISHING TO
20 KT IN THE AFTERNOON. WAVES 2 TO 3 FT.
THU NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
FRI
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 TO 3 FT.
FRI NIGHT...N WINDS 15 TO 20 KT. GUSTS UP TO 20 KT
INCREASING TO
30 KT AFTER MIDNIGHT. WAVES 2 TO 3 FT.
SAT
N WINDS 15 TO 20 KT. WAVES 3 FT.
SUN...N WINDS 15 TO 20 KT
DIMINISHING TO 5 TO 10 KT. WAVES 2 TO
3 FT...SUBSIDING TO 1 FT AFTER MIDNIGHT.
ANZ532-230800-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
757 PM EDT TUE SEP 22 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE WEDNESDAY NIGHT
TONIGHT
NE WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
PATCHY DRIZZLE. RAIN. PATCHY FOG. VSBY 1 TO 3 NM.
WED
NE WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 4 FT. A
CHANCE OF RAIN.
WED NIGHT
NE WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 4 FT.
THU
NE WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
THU NIGHT
NE WINDS 20 TO 25 KT. WAVES 3 FT.
FRI
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
FRI NIGHT
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
SAT
N WINDS 20 TO 25 KT. WAVES 3 FT.
SUN
NW WINDS 15 TO 20 KT. WAVES 2 TO 3 FT.
ANZ540-230800-
EASTERN BAY-
757 PM EDT TUE SEP 22 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE WEDNESDAY NIGHT
TONIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 2 FT.
PATCHY FOG THIS EVENING. PATCHY DRIZZLE. RAIN, MAINLY THIS EVENING.
VSBY 1 TO 3 NM.
WED
NE WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 2 FT. A
CHANCE OF RAIN.
WED NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 2 TO
3 FT.
THU
NE WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 2 TO 3 FT.
THU NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
FRI
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
FRI NIGHT
N WINDS 20 TO 25 KT. WAVES 2 FT.
SAT
N WINDS 20 TO 25 KT. WAVES 2 TO 3 FT.
SUN...NW WINDS 15 TO 20 KT
BECOMING N 10 KT. WAVES 1 TO 2 FT.
ANZ533-230800-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
757 PM EDT TUE SEP 22 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EDT WEDNESDAY
...GALE WARNING IN EFFECT FROM 6 AM EDT WEDNESDAY THROUGH LATE
WEDNESDAY NIGHT...
TONIGHT
NE WINDS 25 KT WITH GUSTS TO 30 KT. WAVES 4 FT. PATCHY
DRIZZLE. RAIN. PATCHY FOG. VSBY 1 TO 3 NM.
WED
NE WINDS 20 TO 25 KT WITH GUSTS TO 35 KT. WAVES 5 FT. RAIN
LIKELY.
WED NIGHT
NE WINDS 20 TO 25 KT WITH GUSTS TO 40 KT. WAVES 5 FT.
THU
NE WINDS 20 TO 25 KT WITH GUSTS TO 35 KT. WAVES 4 FT.
THU NIGHT
NE WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 4 FT.
FRI
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 4 FT.
FRI NIGHT
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 4 FT.
SAT
N WINDS 25 TO 30 KT. WAVES 4 FT.
SUN
NW WINDS 15 TO 20 KT. WAVES 2 TO 3 FT. A CHANCE OF SHOWERS
THROUGH THE NIGHT.
ANZ541-230800-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
757 PM EDT TUE SEP 22 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EDT WEDNESDAY
...GALE WARNING IN EFFECT FROM 6 AM EDT WEDNESDAY THROUGH LATE
WEDNESDAY NIGHT...
TONIGHT
NE WINDS 20 KT WITH GUSTS TO 30 KT. WAVES 3 FT. PATCHY
DRIZZLE. RAIN LIKELY, MAINLY THIS EVENING. PATCHY FOG. VSBY 1 TO
3 NM.
WED
NE WINDS 20 TO 25 KT WITH GUSTS TO 35 KT. WAVES 3 FT. A
CHANCE OF RAIN.
WED NIGHT
NE WINDS 20 TO 25 KT WITH GUSTS TO 35 KT. WAVES 3 FT.
THU
NE WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
THU NIGHT
NE WINDS 20 TO 25 KT. WAVES 2 TO 3 FT.
FRI
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
FRI NIGHT
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
SAT
N WINDS 20 TO 25 KT. WAVES 3 FT.
SUN...NW WINDS 20 TO 25 KT
BECOMING N 10 TO 15 KT. WAVES 2 TO
3 FT. A CHANCE OF SHOWERS THROUGH THE NIGHT.
ANZ542-230800-
PATUXENT RIVER TO BROOMES ISLAND MD-
757 PM EDT TUE SEP 22 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EDT WEDNESDAY
...GALE WARNING IN EFFECT FROM 6 AM EDT WEDNESDAY THROUGH LATE
WEDNESDAY NIGHT...
TONIGHT
NE WINDS 15 KT WITH GUSTS TO 30 KT. WAVES 1 FT. RAIN WITH
PATCHY DRIZZLE. PATCHY FOG. VSBY 1 TO 3 NM.
WED
NE WINDS 15 TO 20 KT WITH GUSTS TO 35 KT. WAVES 1 FT. RAIN
LIKELY.
WED NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 35 KT. WAVES 1 FT.
THU
NE WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 1 FT.
THU NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
FRI
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
FRI NIGHT
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
SAT...N WINDS 15 TO 20 KT
BECOMING NW 10 KT AFTER MIDNIGHT. WAVES
1 FT.
SUN
NW WINDS 10 TO 15 KT. WAVES 1 FT.
ANZ534-230800-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
757 PM EDT TUE SEP 22 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EDT WEDNESDAY
...GALE WARNING IN EFFECT FROM 6 AM EDT WEDNESDAY THROUGH LATE
WEDNESDAY NIGHT...
TONIGHT
NE WINDS 25 KT WITH GUSTS TO 30 KT. WAVES 4 FT. PATCHY
DRIZZLE. RAIN LIKELY, MAINLY THIS EVENING. PATCHY FOG. VSBY 1 TO
3 NM.
WED
NE WINDS 20 TO 25 KT WITH GUSTS TO 35 KT. WAVES 5 FT. RAIN
LIKELY.
WED NIGHT
NE WINDS 20 TO 25 KT WITH GUSTS TO 35 KT. WAVES 5 FT.
THU
NE WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 5 FT.
THU NIGHT
NE WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 4 FT.
FRI
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 5 FT.
FRI NIGHT
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 5 FT.
SAT...N WINDS 25 TO 30 KT
BECOMING NW 15 TO 20 KT AFTER MIDNIGHT.
WAVES 4 FT.
SUN...NW WINDS 20 TO 25 KT
DIMINISHING TO 10 TO 15 KT. WAVES
3 FT...SUBSIDING TO 2 FT AFTER MIDNIGHT.
ANZ543-230800-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
757 PM EDT TUE SEP 22 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EDT WEDNESDAY
...GALE WARNING IN EFFECT FROM 6 AM EDT WEDNESDAY THROUGH LATE
WEDNESDAY NIGHT...
TONIGHT
NE WINDS 20 KT WITH GUSTS TO 30 KT. WAVES 2 TO 3 FT.
PATCHY FOG THIS EVENING. A CHANCE OF RAIN WITH PATCHY DRIZZLE. VSBY
1 TO 3 NM.
WED
NE WINDS 20 TO 25 KT WITH GUSTS TO 35 KT. WAVES 3 FT. A
CHANCE OF RAIN.
WED NIGHT
NE WINDS 20 TO 25 KT WITH GUSTS TO 35 KT. WAVES 3 FT.
THU
NE WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
THU NIGHT
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
FRI
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
FRI NIGHT
N WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
SAT
N WINDS 20 TO 25 KT. WAVES 3 FT.
SUN
NW WINDS 15 TO 20 KT. WAVES 2 TO 3 FT.
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