358
FZUS51 KLWX 072059
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
459 PM 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.
ANZ500-080800-
459 PM EDT THU MAY 7 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
HIGH PRESSURE WILL BUILD FROM THE MIDWEST TO THE MID-ATLANTIC
TONIGHT THROUGH FRIDAY NIGHT BEFORE MOVING OFFSHORE ON SATURDAY.
ANOTHER COLD FRONT AND WAVE OF LOW PRESSURE WILL APPROACH FROM THE
OHIO RIVER VALLEY ON SUNDAY, THEN MOVE OFFSHORE MONDAY.
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. NORTHERLY WIND GUSTS OF 20 TO
25 KNOTS ARE POSSIBLE MONDAY.
ANZ535-080800-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
459 PM EDT THU MAY 7 2026
REST OF THIS AFTERNOON
W WINDS 5 KT. WAVES LESS THAN 1 FT.
ISOLATED SHOWERS.
TONIGHT
W WINDS 5 KT. WAVES LESS THAN 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 5 TO 10 KT. WAVES 1 FT OR LESS.
SUN...S WINDS AROUND 5 KT
BECOMING N AFTER MIDNIGHT. WAVES 1 FT.
SHOWERS THROUGH THE NIGHT.
MON
N WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS, MAINLY IN THE
MORNING.
ANZ536-080800-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
459 PM EDT THU MAY 7 2026
REST OF THIS AFTERNOON
S WINDS 5 KT. WAVES LESS THAN 1 FT.
SCATTERED SHOWERS.
TONIGHT...SW WINDS 5 TO 10 KT
BECOMING NW LATE. WAVES 1 FT.
FRI...NW WINDS AROUND 5 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 WITH GUSTS TO 20 KT. WAVES 1 FT. A
CHANCE OF SHOWERS.
SAT NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
SUN...S WINDS AROUND 5 KT
BECOMING N AFTER MIDNIGHT. WAVES 1 FT.
A CHANCE OF SHOWERS IN THE EVENING. SHOWERS LIKELY AFTER MIDNIGHT.
MON
N WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY IN THE
MORNING. A CHANCE OF SHOWERS IN THE AFTERNOON.
ANZ537-080800-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
459 PM EDT THU MAY 7 2026
REST OF THIS AFTERNOON
N WINDS 5 KT. WAVES LESS THAN 1 FT.
NUMEROUS SHOWERS.
TONIGHT...SW WINDS 5 TO 10 KT
BECOMING NW LATE. WAVES 1 FT OR
LESS. SCATTERED SHOWERS.
FRI...NW WINDS 5 TO 10 KT
BECOMING S IN THE AFTERNOON. WAVES
1 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. A CHANCE
OF SHOWERS.
SAT NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
SUN...S WINDS 5 TO 10 KT
BECOMING NE AFTER MIDNIGHT. WAVES 1 FT
OR LESS. A CHANCE OF SHOWERS THROUGH THE NIGHT.
MON
N WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. SHOWERS LIKELY THROUGH
THE DAY, THEN A CHANCE OF SHOWERS IN THE EVENING.
ANZ530-080800-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
459 PM EDT THU MAY 7 2026
REST OF THIS AFTERNOON
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
TONIGHT
NW WINDS 5 TO 10 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
S WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
SHOWERS LIKELY WITH A CHANCE OF TSTMS.
SAT NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SUN...W WINDS AROUND 5 KT
BECOMING N AFTER MIDNIGHT. WAVES 1 FT.
SHOWERS THROUGH THE NIGHT.
MON
N WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS, MAINLY IN THE
MORNING.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ531-080800-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
459 PM EDT THU MAY 7 2026
REST OF THIS AFTERNOON
SW WINDS 5 KT. WAVES FLAT.
TONIGHT...W WINDS 5 TO 10 KT
BECOMING NW LATE. WAVES 1 FT.
FRI...W WINDS 5 TO 10 KT
BECOMING SW LATE. WAVES 1 FT.
FRI NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
S 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 OR LESS.
SUN...SW WINDS AROUND 5 KT
BECOMING N AFTER MIDNIGHT. WAVES 1 FT
OR LESS. SHOWERS THROUGH THE NIGHT.
MON
N WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. SHOWERS, MAINLY IN THE
MORNING.
ANZ538-080800-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
459 PM EDT THU MAY 7 2026
REST OF THIS AFTERNOON
W WINDS 5 KT. WAVES FLAT.
TONIGHT...W WINDS 5 TO 10 KT
BECOMING NW LATE. WAVES 1 FT OR
LESS.
FRI
W WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
FRI NIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
SAT
S 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. SHOWERS THROUGH THE NIGHT.
MON
N WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS, MAINLY IN THE
MORNING.
ANZ539-080800-
CHESTER RIVER TO QUEENSTOWN MD-
459 PM EDT THU MAY 7 2026
REST OF THIS AFTERNOON
W WINDS 5 KT. WAVES FLAT.
TONIGHT...W WINDS 5 TO 10 KT
BECOMING NW LATE. WAVES 1 FT.
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
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. SHOWERS
LIKELY.
SAT NIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
SUN...SW WINDS 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 TO 2 FT. SHOWERS LIKELY THROUGH
THE DAY.
ANZ532-080800-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
459 PM EDT THU MAY 7 2026
REST OF THIS AFTERNOON
S WINDS 5 KT. WAVES FLAT. ISOLATED
SHOWERS.
TONIGHT...SW WINDS 5 TO 10 KT
BECOMING NW LATE. WAVES 1 FT.
FRI...NW WINDS 5 TO 10 KT
BECOMING S IN THE AFTERNOON. WAVES
1 FT.
FRI NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
SAT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. A CHANCE
OF SHOWERS.
SAT NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
SUN...S WINDS 5 TO 10 KT
BECOMING SE IN THE EVENING, THEN
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 10 TO 15 KT. WAVES 2 FT. SHOWERS LIKELY THROUGH THE
DAY, THEN A CHANCE OF SHOWERS IN THE EVENING.
ANZ540-080800-
EASTERN BAY-
459 PM EDT THU MAY 7 2026
REST OF THIS AFTERNOON
W WINDS 5 KT. WAVES FLAT. ISOLATED
SHOWERS.
TONIGHT...SW WINDS 5 TO 10 KT
BECOMING NW LATE. WAVES 1 FT.
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
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 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 THROUGH THE
DAY, THEN A CHANCE OF SHOWERS IN THE EVENING.
ANZ533-080800-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
459 PM EDT THU MAY 7 2026
REST OF THIS AFTERNOON
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
SCATTERED SHOWERS.
TONIGHT...SW WINDS 5 TO 10 KT
BECOMING NW LATE. WAVES 1 FT.
FRI...NW WINDS 5 TO 10 KT
BECOMING S IN THE AFTERNOON. WAVES
1 FT.
FRI NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
SAT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. A CHANCE
OF SHOWERS.
SAT NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
SUN...S WINDS 5 TO 10 KT
BECOMING SE IN THE EVENING, THEN
BECOMING N 10 TO 15 KT AFTER MIDNIGHT. WAVES 1 TO 2 FT. A CHANCE OF
SHOWERS IN THE EVENING. SHOWERS LIKELY AFTER MIDNIGHT.
MON
N WINDS 10 TO 15 KT. WAVES 2 FT. SHOWERS LIKELY THROUGH THE
DAY, THEN A CHANCE OF SHOWERS IN THE EVENING.
ANZ541-080800-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
459 PM EDT THU MAY 7 2026
REST OF THIS AFTERNOON
W WINDS 5 KT. WAVES FLAT. SCATTERED
SHOWERS.
TONIGHT...W WINDS 5 TO 10 KT
BECOMING NW LATE. WAVES 1 FT.
FRI...NW WINDS 5 TO 10 KT
BECOMING SW IN THE AFTERNOON. WAVES
1 FT.
FRI NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SAT
S 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 AROUND 5 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 10 TO 15 KT. WAVES 1 TO 2 FT. SHOWERS LIKELY THROUGH
THE DAY, THEN A CHANCE OF SHOWERS IN THE EVENING.
ANZ542-080800-
PATUXENT RIVER TO BROOMES ISLAND MD-
459 PM EDT THU MAY 7 2026
REST OF THIS AFTERNOON
N WINDS 5 KT. WAVES LESS THAN 1 FT.
SCATTERED SHOWERS.
TONIGHT
W WINDS AROUND 5 KT. WAVES 1 FT.
FRI...W WINDS AROUND 5 KT
BECOMING S LATE. WAVES 1 FT.
FRI NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 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 SE IN THE EVENING, THEN
BECOMING N AFTER MIDNIGHT. WAVES 1 FT. A CHANCE OF SHOWERS IN THE
EVENING. SHOWERS LIKELY AFTER MIDNIGHT.
MON
N WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY THROUGH THE
DAY, THEN A CHANCE OF SHOWERS IN THE EVENING.
ANZ534-080800-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
459 PM EDT THU MAY 7 2026
REST OF THIS AFTERNOON
N WINDS 5 KT. WAVES LESS THAN 1 FT.
NUMEROUS SHOWERS.
TONIGHT
W WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. SCATTERED SHOWERS.
FRI...N WINDS 10 TO 15 KT
BECOMING NW AROUND 5 KT LATE IN THE
MORNING, THEN BECOMING S 10 TO 15 KT WITH GUSTS TO 20 KT IN THE
AFTERNOON. 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 3 FT. A CHANCE
OF SHOWERS.
SAT NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
SUN...S WINDS 5 TO 10 KT
BECOMING NE AFTER MIDNIGHT. WAVES 1 FT.
A CHANCE OF SHOWERS IN THE EVENING. SHOWERS LIKELY AFTER MIDNIGHT.
MON
N WINDS 10 TO 15 KT. WAVES 2 TO 3 FT. SHOWERS LIKELY THROUGH
THE DAY, THEN A CHANCE OF SHOWERS IN THE EVENING.
ANZ543-080800-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
459 PM EDT THU MAY 7 2026
REST OF THIS AFTERNOON
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
NUMEROUS SHOWERS.
TONIGHT
W WINDS 10 TO 15 KT. WAVES 1 FT OR LESS. SCATTERED
SHOWERS.
FRI...NW WINDS 10 TO 15 KT
BECOMING SW IN THE AFTERNOON. WAVES
1 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
SW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
SUN...S WINDS 5 TO 10 KT
BECOMING SE 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 TO 2 FT. SHOWERS LIKELY IN THE
MORNING. A CHANCE OF SHOWERS THROUGH THE NIGHT.
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