190
FZUS51 KLWX 070629
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
228 AM EDT THU MAY 7 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.
ANZ500-072000-
228 AM EDT THU MAY 7 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
A COLD FRONT WILL SLOWLY SLIDE SOUTHEAST OF THE MID-ATLANTIC THROUGH
TODAY AS A WEAK WAVE OF LOW PRESSURE GLIDES BY TO THE SOUTH OVER
THE CAROLINAS. HIGH PRESSURE WILL BUILD FROM THE MIDWEST TO THE
MID- ATLANTIC TONIGHT THROUGH FRIDAY NIGHT BEFORE MOVING OFFSHORE
ON SATURDAY. ANOTHER COLD FRONT WILL APPROACH FROM THE OHIO RIVER
VALLEY ON SUNDAY. NORTHERLY WIND GUSTS MAY BRIEFLY APPROACH 20 KNOTS
THURSDAY MORNING OVER THE MAIN CHANNEL OF THE CHESAPEAKE BAY, THEN
NORTHWESTERLY WIND GUSTS MAY BRIEFLY APPROACH 20 KNOTS LATE TONIGHT
INTO EARLY FRIDAY MORNING OVER THE MIDDLE CHESAPEAKE BAY AND LOWER
TIDAL POTOMAC RIVER. WESTERLY WIND GUSTS COULD APPROACH 20 KNOTS
FRIDAY AFTERNOON OVER THE UPPER CHESAPEAKE BAY AND UPPER TIDAL
POTOMAC RIVER. MORE WIDESPREAD GUSTS AROUND 20 KNOTS ARE POSSIBLE
OUT OF THE SOUTH LATE FRIDAY EVENING THROUGH SATURDAY AFTERNOON, AND
AGAIN SUNDAY AFTERNOON AND EVENING.
ANZ535-072000-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
228 AM EDT THU MAY 7 2026
OVERNIGHT
N WINDS 10 KT. WAVES 1 FT. SHOWERS LIKELY.
THU
N WINDS AROUND 5 KT. WAVES 1 FT.
THU NIGHT
W WINDS AROUND 5 KT. WAVES 1 FT.
FRI
W WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE AFTERNOON. WAVES
1 FT.
FRI NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
SW WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A CHANCE
OF SHOWERS.
SAT NIGHT
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SUN...S WINDS 5 TO 10 KT
BECOMING SE IN THE EVENING, THEN
BECOMING N AFTER MIDNIGHT. WAVES 1 FT. A CHANCE OF SHOWERS THROUGH
THE NIGHT. SHOWERS LIKELY AFTER MIDNIGHT.
MON
NW WINDS 10 TO 15 KT. WAVES 1 FT. SHOWERS LIKELY, MAINLY IN
THE MORNING.
ANZ536-072000-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
228 AM EDT THU MAY 7 2026
OVERNIGHT
N WINDS 10 KT. WAVES 1 FT. SHOWERS LIKELY.
THU...N WINDS 5 TO 10 KT
BECOMING S LATE. WAVES 1 FT. A CHANCE OF
SHOWERS.
THU NIGHT...SW WINDS 5 TO 10 KT
BECOMING NW LATE. WAVES 1 FT.
FRI
W WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
SW WINDS 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SAT NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
SUN...S WINDS 5 TO 10 KT
BECOMING N AFTER MIDNIGHT. WAVES 1 FT. A
CHANCE OF SHOWERS IN THE EVENING. SHOWERS LIKELY AFTER MIDNIGHT.
MON
N WINDS 10 TO 15 KT. WAVES 1 FT. SHOWERS LIKELY, MAINLY IN
THE MORNING.
ANZ537-072000-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
228 AM EDT THU MAY 7 2026
OVERNIGHT
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT LATE. WAVES
1 FT. SHOWERS.
THU...N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
DIMINISHING TO
AROUND 5 KT LATE. WAVES 1 TO 2 FT. SHOWERS LIKELY.
THU NIGHT...W WINDS 5 TO 10 KT
BECOMING NW LATE. WAVES 1 FT OR
LESS.
FRI...NW WINDS 5 TO 10 KT
BECOMING SW IN THE AFTERNOON. WAVES
1 FT.
FRI NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
SW WINDS 10 TO 15 KT. WAVES 2 FT. A CHANCE OF SHOWERS.
SAT NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
SUN...S WINDS 5 TO 10 KT
BECOMING W AFTER MIDNIGHT. WAVES 1 FT OR
LESS. A CHANCE OF SHOWERS THROUGH THE NIGHT. SHOWERS LIKELY AFTER
MIDNIGHT.
MON
N WINDS 10 TO 15 KT. WAVES 2 FT. SHOWERS LIKELY THROUGH THE
DAY.
ANZ530-072000-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
228 AM EDT THU MAY 7 2026
OVERNIGHT
NW WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A
CHANCE OF SHOWERS.
THU
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
THU NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
FRI
W WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE AFTERNOON. WAVES
1 FT.
FRI NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
SW WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT. SHOWERS
LIKELY.
SAT NIGHT
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SUN...S WINDS AROUND 5 KT
BECOMING N AFTER MIDNIGHT. WAVES 1 FT
OR LESS. A CHANCE OF SHOWERS IN THE EVENING. SHOWERS LIKELY AFTER
MIDNIGHT.
MON
N WINDS 10 TO 15 KT. WAVES 1 FT. SHOWERS LIKELY, MAINLY IN
THE MORNING.
ANZ531-072000-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
228 AM EDT THU MAY 7 2026
OVERNIGHT
NW WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A
CHANCE OF SHOWERS.
THU...N WINDS 5 TO 10 KT WITH GUSTS TO 20 KT
BECOMING SW LATE.
WAVES 1 FT.
THU NIGHT...SW WINDS 5 KT
BECOMING NW 10 TO 15 KT AFTER MIDNIGHT.
WAVES 1 FT.
FRI
W WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
SW WINDS 5 TO 10 KT. WAVES 2 FT. SHOWERS LIKELY.
SAT NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SUN...S WINDS 5 TO 10 KT
BECOMING N 10 TO 15 KT AFTER MIDNIGHT.
WAVES 1 FT OR LESS...BUILDING TO 2 FT AFTER MIDNIGHT. A CHANCE OF
SHOWERS IN THE EVENING. SHOWERS LIKELY AFTER MIDNIGHT.
MON
N WINDS 10 TO 15 KT. WAVES 2 FT. SHOWERS LIKELY, MAINLY IN
THE MORNING.
ANZ538-072000-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
228 AM EDT THU MAY 7 2026
OVERNIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
THU
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
THU NIGHT
W WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
FRI
W WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SAT
SW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY.
SAT NIGHT
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SUN...S WINDS AROUND 5 KT
BECOMING N AFTER MIDNIGHT. WAVES 1 FT
OR LESS. A CHANCE OF SHOWERS IN THE EVENING. SHOWERS LIKELY AFTER
MIDNIGHT.
MON
N WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY, MAINLY IN THE
MORNING.
ANZ539-072000-
CHESTER RIVER TO QUEENSTOWN MD-
228 AM EDT THU MAY 7 2026
OVERNIGHT
N WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT. SHOWERS
LIKELY.
THU
NW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE MORNING. WAVES
1 FT.
THU NIGHT...W WINDS 5 TO 10 KT
BECOMING NW LATE. WAVES 1 FT.
FRI
W WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
SW WINDS 5 TO 10 KT. WAVES 1 TO 2 FT. SHOWERS LIKELY.
SAT NIGHT
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
SUN...S WINDS AROUND 5 KT
BECOMING N AFTER MIDNIGHT. WAVES 1 FT
OR LESS. A CHANCE OF SHOWERS IN THE EVENING. SHOWERS LIKELY AFTER
MIDNIGHT.
MON
N WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. SHOWERS LIKELY, MAINLY
IN THE MORNING.
ANZ532-072000-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
228 AM EDT THU MAY 7 2026
OVERNIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A
CHANCE OF SHOWERS.
THU...N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING SE 5 KT
LATE. WAVES 1 TO 2 FT.
THU NIGHT...SW WINDS 5 TO 10 KT
BECOMING NW 10 TO 15 KT LATE.
WAVES 1 FT.
FRI
W WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
S WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
SAT
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. SHOWERS
LIKELY.
SAT NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
SUN...S WINDS 5 TO 10 KT
BECOMING N 10 TO 15 KT AFTER MIDNIGHT.
WAVES 1 FT OR LESS...BUILDING TO 2 FT AFTER MIDNIGHT. A CHANCE OF
SHOWERS IN THE EVENING. SHOWERS LIKELY AFTER MIDNIGHT.
MON
N WINDS 15 TO 20 KT. WAVES 2 FT. SHOWERS LIKELY, MAINLY IN
THE MORNING.
ANZ540-072000-
EASTERN BAY-
228 AM EDT THU MAY 7 2026
OVERNIGHT
N WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT. SHOWERS
LIKELY.
THU
N WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE MORNING. WAVES
1 FT.
THU NIGHT...W WINDS 5 TO 10 KT
BECOMING NW LATE. WAVES 1 FT.
FRI
W WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT. SHOWERS
LIKELY.
SAT NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SUN...S WINDS AROUND 5 KT
BECOMING NE AFTER MIDNIGHT. WAVES 1 FT
OR LESS. A CHANCE OF SHOWERS IN THE EVENING. SHOWERS LIKELY AFTER
MIDNIGHT.
MON
N WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. SHOWERS LIKELY, MAINLY
IN THE MORNING.
ANZ533-072000-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
228 AM EDT THU MAY 7 2026
OVERNIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT. SHOWERS.
THU...N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
DIMINISHING TO
5 KT LATE. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS.
THU NIGHT...SW WINDS 10 TO 15 KT
BECOMING NW LATE. WAVES 1 TO
2 FT.
FRI...NW WINDS 5 TO 10 KT
BECOMING SW IN THE AFTERNOON. WAVES
1 TO 2 FT.
FRI NIGHT
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
SAT
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. A
CHANCE OF SHOWERS.
SAT NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
SUN...S WINDS 5 TO 10 KT
BECOMING N 10 TO 15 KT AFTER MIDNIGHT.
WAVES 1 FT OR LESS...BUILDING TO 2 FT AFTER MIDNIGHT. A CHANCE OF
SHOWERS IN THE EVENING. SHOWERS LIKELY AFTER MIDNIGHT.
MON
N WINDS 15 TO 20 KT. WAVES 2 TO 3 FT. SHOWERS LIKELY THROUGH
THE DAY.
ANZ541-072000-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
228 AM EDT THU MAY 7 2026
OVERNIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SHOWERS.
THU...N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING NW 5 KT
LATE. WAVES 1 FT. A CHANCE OF SHOWERS.
THU NIGHT...SW WINDS AROUND 5 KT
BECOMING NW 10 TO 15 KT AFTER
MIDNIGHT. WAVES 1 TO 2 FT.
FRI...NW WINDS 5 TO 10 KT
BECOMING SW IN THE AFTERNOON. WAVES
1 TO 2 FT.
FRI NIGHT
S WINDS 10 KT. WAVES 1 FT.
SAT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. SHOWERS
LIKELY.
SAT NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SUN...S WINDS 5 TO 10 KT
BECOMING N 10 TO 15 KT AFTER MIDNIGHT.
WAVES 1 FT OR LESS. A CHANCE OF SHOWERS IN THE EVENING. SHOWERS
LIKELY AFTER MIDNIGHT.
MON
N WINDS 15 TO 20 KT. WAVES 2 FT. SHOWERS LIKELY THROUGH THE
DAY.
ANZ542-072000-
PATUXENT RIVER TO BROOMES ISLAND MD-
228 AM EDT THU MAY 7 2026
OVERNIGHT
N WINDS 5 TO 10 KT. GUSTS UP TO 20 KT LATE. WAVES 1 FT.
SHOWERS.
THU
N WINDS 5 TO 10 KT. GUSTS UP TO 20 KT UNTIL LATE AFTERNOON.
WAVES 1 FT. A CHANCE OF SHOWERS.
THU NIGHT...SW WINDS AROUND 5 KT
BECOMING NW LATE. WAVES 1 FT.
FRI
W WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
SW WINDS 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SAT NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
SUN...S WINDS 5 TO 10 KT
BECOMING N AFTER MIDNIGHT. WAVES 1 FT. A
CHANCE OF SHOWERS IN THE EVENING. SHOWERS LIKELY AFTER MIDNIGHT.
MON
N WINDS 10 TO 15 KT. WAVES 1 FT. SHOWERS LIKELY THROUGH THE
DAY.
ANZ534-072000-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
228 AM EDT THU MAY 7 2026
OVERNIGHT
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT LATE. WAVES 1 TO
2 FT. SHOWERS.
THU...N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
DIMINISHING TO
5 KT LATE. WAVES 2 TO 3 FT. SHOWERS.
THU NIGHT...W WINDS 5 TO 10 KT
BECOMING NW 15 TO 20 KT LATE.
WAVES 1 TO 2 FT.
FRI...NW WINDS 10 TO 15 KT
BECOMING S IN THE AFTERNOON. GUSTS UP
TO 20 KT. WAVES 1 TO 2 FT.
FRI NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SAT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 TO 3 FT. A
CHANCE OF SHOWERS.
SAT NIGHT
S WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
SUN
S WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS IN THE
EVENING. SHOWERS LIKELY AFTER MIDNIGHT.
MON
N WINDS 15 TO 20 KT. WAVES 3 FT. SHOWERS LIKELY THROUGH THE
DAY.
ANZ543-072000-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
228 AM EDT THU MAY 7 2026
OVERNIGHT
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT LATE. WAVES
1 FT. SHOWERS WITH A SLIGHT CHANCE OF TSTMS.
THU...N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
DIMINISHING TO
5 KT LATE. WAVES 1 TO 2 FT. SHOWERS.
THU NIGHT...W WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES FLAT
BUILDING TO 2 FT AFTER MIDNIGHT.
FRI...NW WINDS 10 TO 15 KT
BECOMING SW 5 TO 10 KT IN THE
AFTERNOON. GUSTS UP TO 20 KT. WAVES 1 TO 2 FT.
FRI NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SAT
S WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT. A CHANCE
OF SHOWERS.
SAT NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
S WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS IN THE
EVENING. SHOWERS LIKELY AFTER MIDNIGHT.
MON
N WINDS 15 TO 20 KT. WAVES 2 FT. SHOWERS LIKELY THROUGH THE
DAY.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
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