236
FZUS51 KLWX 170736
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
336 AM EDT FRI APR 17 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.
ANZ500-172200-
336 AM EDT FRI APR 17 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
IT WILL REMAIN VERY WARM AND DRY THROUGH SATURDAY AS AN AREA OF HIGH
PRESSURE REMAINS OFF THE SOUTHEASTERN U.S. COAST. A COLD FRONT LATE
SATURDAY NIGHT WILLL BRING THE NEXT CHANCE FOR WIDESPREAD SHOWERS.
SMALL CRAFT ADVISORIES MAY BE NEEDED AT TIMES FROM SATURDAY
AFTERNOON THROUGH TUESDAY MORNING.
ANZ535-172200-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
336 AM EDT FRI APR 17 2026
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EDT EARLY THIS
MORNING...
REST OF THE OVERNIGHT
NW WINDS 10 KT. WAVES 1 FT. ISOLATED
SHOWERS.
TODAY
NW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE LATE MORNING
AND AFTERNOON. WAVES 1 FT.
TONIGHT
NE WINDS 5 TO 10 KT. GUSTS UP TO 20 KT EARLY IN THE
EVENING. WAVES 1 FT OR LESS.
SAT
SE WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
WAVES 1 FT.
SAT NIGHT
SE WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 FT. A CHANCE OF SHOWERS.
SUN
NW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
SHOWERS.
SUN NIGHT
NW WINDS 10 TO 15 KT. GUSTS UP TO 25 KT IN THE EVENING.
WAVES 1 FT.
MON...NW WINDS 10 TO 15 KT
BECOMING N AROUND 5 KT AFTER MIDNIGHT.
WAVES 1 FT.
TUE
SW WINDS AROUND 5 KT. WAVES 1 FT.
ANZ536-172200-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
336 AM EDT FRI APR 17 2026
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EDT EARLY THIS
MORNING...
REST OF THE OVERNIGHT
NW WINDS 10 KT. WAVES 1 FT. ISOLATED
SHOWERS.
TODAY
NW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE LATE MORNING
AND AFTERNOON. WAVES 1 FT.
TONIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SAT
E WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
WAVES 1 FT.
SAT NIGHT
SE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 FT. A CHANCE OF SHOWERS.
SUN
NW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 TO 2 FT.
SHOWERS.
SUN NIGHT...NW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT
BECOMING W
AFTER MIDNIGHT. WAVES 1 FT.
MON...NW WINDS 10 TO 15 KT
BECOMING N AROUND 5 KT AFTER MIDNIGHT.
WAVES 1 FT.
TUE...W WINDS AROUND 5 KT
BECOMING S. WAVES 1 FT.
ANZ537-172200-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
336 AM EDT FRI APR 17 2026
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EDT EARLY THIS
MORNING...
REST OF THE OVERNIGHT
W WINDS 10 KT. WAVES 1 FT. SCATTERED
SHOWERS.
TODAY
NW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE LATE MORNING
AND AFTERNOON. WAVES 1 FT.
TONIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SAT
E WINDS 10 TO 15 KT. GUSTS UP TO 25 KT IN THE AFTERNOON.
WAVES 1 TO 2 FT.
SAT NIGHT...SE WINDS 10 TO 15 KT
BECOMING S AFTER MIDNIGHT. GUSTS
UP TO 25 KT. WAVES 2 FT. A CHANCE OF SHOWERS.
SUN
NW WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 2 FT.
SHOWERS.
SUN NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
MON...NW WINDS 10 TO 15 KT
BECOMING N AFTER MIDNIGHT. WAVES 1 TO
2 FT.
TUE...N WINDS 5 TO 10 KT
BECOMING S 10 TO 15 KT. WAVES 1 FT.
ANZ530-172200-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
336 AM EDT FRI APR 17 2026
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EDT EARLY THIS
MORNING...
REST OF THE OVERNIGHT
NW WINDS 10 KT. WAVES 1 FT. ISOLATED
SHOWERS.
TODAY
NW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE LATE MORNING
AND AFTERNOON. WAVES 1 FT.
TONIGHT...N WINDS 5 TO 10 KT WITH GUSTS TO 20 KT
BECOMING E
LATE. WAVES 1 FT OR LESS.
SAT
E WINDS 10 KT. GUSTS UP TO 20 KT IN THE AFTERNOON. WAVES 1 FT
OR LESS.
SAT NIGHT
E WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A
CHANCE OF SHOWERS.
SUN
NW WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 1 TO 2 FT.
SHOWERS.
SUN NIGHT
NW WINDS 10 TO 15 KT. GUSTS UP TO 25 KT IN THE EVENING.
WAVES 1 FT.
MON...NW WINDS 10 TO 15 KT
BECOMING N 5 KT AFTER MIDNIGHT. WAVES
1 FT.
TUE...SW WINDS 5 KT
BECOMING S AFTER MIDNIGHT. WAVES 1 FT OR
LESS.
ANZ531-172200-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
336 AM EDT FRI APR 17 2026
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EDT EARLY THIS
MORNING...
REST OF THE OVERNIGHT
W WINDS 10 KT. WAVES 2 FT. ISOLATED
SHOWERS.
TODAY
NW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE LATE MORNING
AND AFTERNOON. WAVES 1 FT.
TONIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SAT
E WINDS 10 KT. GUSTS UP TO 20 KT IN THE AFTERNOON. WAVES
1 FT.
SAT NIGHT
E WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT. A CHANCE OF SHOWERS.
SUN
NW WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 2 FT.
SHOWERS.
SUN NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
MON...NW WINDS 10 TO 15 KT
BECOMING N 5 TO 10 KT AFTER MIDNIGHT.
WAVES 1 TO 2 FT.
TUE...NE WINDS 5 TO 10 KT
BECOMING S 10 TO 15 KT. WAVES 1 FT.
ANZ538-172200-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
336 AM EDT FRI APR 17 2026
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EDT EARLY THIS
MORNING...
REST OF THE OVERNIGHT
W WINDS 10 KT. WAVES 1 FT. ISOLATED
SHOWERS.
TODAY
NW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE LATE MORNING
AND AFTERNOON. WAVES 1 FT.
TONIGHT
N WINDS 5 TO 10 KT. GUSTS UP TO 20 KT EARLY IN THE
EVENING. WAVES FLAT.
SAT
E WINDS 10 KT. GUSTS UP TO 20 KT IN THE AFTERNOON. WAVES 1 FT
OR LESS.
SAT NIGHT
E WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 FT. A CHANCE OF SHOWERS.
SUN
NW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
SHOWERS.
SUN NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
MON...NW WINDS 10 TO 15 KT
BECOMING N AROUND 5 KT AFTER MIDNIGHT.
WAVES 1 FT OR LESS.
TUE
S WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
ANZ539-172200-
CHESTER RIVER TO QUEENSTOWN MD-
336 AM EDT FRI APR 17 2026
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EDT EARLY THIS
MORNING...
REST OF THE OVERNIGHT
W WINDS 10 KT. WAVES 2 FT. ISOLATED
SHOWERS.
TODAY
NW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE LATE MORNING
AND AFTERNOON. WAVES 1 FT.
TONIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SAT
E WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT OR LESS.
SAT NIGHT
SE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A
CHANCE OF SHOWERS.
SUN
NW WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 2 FT.
SHOWERS.
SUN NIGHT...NW WINDS 15 KT
BECOMING W AFTER MIDNIGHT. GUSTS UP TO
25 KT. WAVES 2 FT.
MON...NW WINDS 10 TO 15 KT
BECOMING N 5 TO 10 KT AFTER MIDNIGHT.
WAVES 1 TO 2 FT.
TUE...W WINDS 5 KT
BECOMING S. WAVES 1 FT.
ANZ532-172200-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
336 AM EDT FRI APR 17 2026
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EDT EARLY THIS
MORNING...
REST OF THE OVERNIGHT
NW WINDS 10 KT. WAVES 2 FT. ISOLATED
SHOWERS.
TODAY
NW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE LATE MORNING
AND AFTERNOON. WAVES 1 FT.
TONIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SAT
SE WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
WAVES FLAT...BUILDING TO 2 FT IN THE AFTERNOON.
SAT NIGHT
SE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. A
CHANCE OF SHOWERS.
SUN
NW WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 2 FT.
SHOWERS.
SUN NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
MON...NW WINDS 10 TO 15 KT
BECOMING N AFTER MIDNIGHT. WAVES 1 TO
2 FT.
TUE...NE WINDS 5 TO 10 KT
BECOMING S 10 TO 15 KT IN THE AFTERNOON
AND EVENING, THEN BECOMING SW AFTER MIDNIGHT. WAVES 1 TO 2 FT.
ANZ540-172200-
EASTERN BAY-
336 AM EDT FRI APR 17 2026
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EDT EARLY THIS
MORNING...
REST OF THE OVERNIGHT
NW WINDS 10 KT. WAVES 1 FT. ISOLATED
SHOWERS.
TODAY
NW WINDS 10 KT. GUSTS UP TO 20 KT IN THE LATE MORNING AND
AFTERNOON. WAVES 1 FT.
TONIGHT
NE WINDS 5 TO 10 KT. WAVES FLAT.
SAT
SE WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT OR LESS.
SAT NIGHT
SE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A
CHANCE OF SHOWERS.
SUN
NW WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 2 FT.
SHOWERS.
SUN NIGHT...NW WINDS 15 KT
BECOMING W AFTER MIDNIGHT. GUSTS UP TO
25 KT. WAVES 1 TO 2 FT.
MON...NW WINDS 10 TO 15 KT
BECOMING N 5 TO 10 KT AFTER MIDNIGHT.
WAVES 1 FT.
TUE...N WINDS 5 TO 10 KT
BECOMING S 10 TO 15 KT. WAVES 1 FT.
ANZ533-172200-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
336 AM EDT FRI APR 17 2026
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EDT EARLY THIS
MORNING...
REST OF THE OVERNIGHT
NW WINDS 10 KT. WAVES 2 FT. ISOLATED
SHOWERS.
TODAY
NW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
WAVES 1 FT.
TONIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SAT
E WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE AFTERNOON. WAVES
FLAT...BUILDING TO 2 FT IN THE AFTERNOON.
SAT NIGHT
SE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT. A
CHANCE OF SHOWERS.
SUN
NW WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 2 TO 3 FT.
SHOWERS.
SUN NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
MON...NW WINDS 10 TO 15 KT
BECOMING N AFTER MIDNIGHT. WAVES 1 TO
2 FT.
TUE...N WINDS 5 TO 10 KT
BECOMING S 10 TO 15 KT IN THE AFTERNOON
AND EVENING, THEN BECOMING SW AFTER MIDNIGHT. WAVES 1 TO 2 FT.
ANZ541-172200-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
336 AM EDT FRI APR 17 2026
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EDT EARLY THIS
MORNING...
REST OF THE OVERNIGHT
NW WINDS 10 KT. WAVES 2 FT. ISOLATED
SHOWERS.
TODAY
NW WINDS 10 KT. GUSTS UP TO 20 KT IN THE LATE MORNING AND
AFTERNOON. WAVES 1 FT.
TONIGHT
NE WINDS 5 TO 10 KT. WAVES FLAT.
SAT
SE WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT OR LESS.
SAT NIGHT
SE WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A
CHANCE OF SHOWERS.
SUN
NW WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 2 FT.
SHOWERS.
SUN NIGHT...NW WINDS 10 TO 15 KT
BECOMING W AFTER MIDNIGHT. GUSTS
UP TO 25 KT. WAVES 2 FT.
MON...NW WINDS 10 TO 15 KT
BECOMING N 5 TO 10 KT AFTER MIDNIGHT.
WAVES 1 TO 2 FT.
TUE...N WINDS 5 TO 10 KT
BECOMING S 10 TO 15 KT. WAVES 1 TO 2 FT.
ANZ542-172200-
PATUXENT RIVER TO BROOMES ISLAND MD-
336 AM EDT FRI APR 17 2026
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EDT EARLY THIS
MORNING...
REST OF THE OVERNIGHT
W WINDS 10 KT. WAVES 1 FT. SCATTERED
SHOWERS.
TODAY
NW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE LATE MORNING
AND AFTERNOON. WAVES 1 FT.
TONIGHT
NE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SAT
E WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE AFTERNOON. WAVES
1 FT.
SAT NIGHT
SE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A
CHANCE OF SHOWERS.
SUN
NW WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 1 FT.
SHOWERS.
SUN NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
MON...NW WINDS 10 TO 15 KT
BECOMING N 5 TO 10 KT AFTER MIDNIGHT.
WAVES 1 FT.
TUE...E WINDS 5 KT
BECOMING S. WAVES 1 FT.
ANZ534-172200-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
336 AM EDT FRI APR 17 2026
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EDT EARLY THIS
MORNING...
REST OF THE OVERNIGHT
W WINDS 10 KT. WAVES 2 FT. SCATTERED
SHOWERS.
TODAY
NW WINDS 10 KT. WAVES 1 TO 2 FT.
TONIGHT
NE WINDS 5 TO 10 KT. WAVES FLAT.
SAT
E WINDS 10 TO 15 KT. GUSTS UP TO 25 KT IN THE AFTERNOON.
WAVES 1 TO 2 FT.
SAT NIGHT
SE WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT. A
CHANCE OF SHOWERS.
SUN
NW WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 3 FT.
SHOWERS.
SUN NIGHT
NW WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
MON...NW WINDS 15 TO 20 KT
BECOMING N 10 TO 15 KT AFTER MIDNIGHT.
WAVES 2 TO 3 FT.
TUE...N WINDS 10 TO 15 KT
BECOMING S 5 TO 10 KT IN THE AFTERNOON,
THEN INCREASING TO 15 TO 20 KT. WAVES 1 TO 2 FT.
ANZ543-172200-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
336 AM EDT FRI APR 17 2026
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 AM EDT EARLY THIS
MORNING...
REST OF THE OVERNIGHT
W WINDS 10 KT. WAVES 1 FT. SCATTERED
SHOWERS.
TODAY
W WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE LATE MORNING
AND AFTERNOON. WAVES 1 FT.
TONIGHT
N WINDS 5 TO 10 KT. WAVES FLAT.
SAT
E WINDS 10 TO 15 KT. GUSTS UP TO 25 KT IN THE AFTERNOON.
WAVES 1 FT.
SAT NIGHT...SE WINDS 10 TO 15 KT
BECOMING S AFTER MIDNIGHT. GUSTS
UP TO 25 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS.
SUN...W WINDS 20 TO 25 KT
BECOMING NW IN THE AFTERNOON. GUSTS UP
TO 30 KT. WAVES 2 FT. SHOWERS.
SUN NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
MON...NW WINDS 10 TO 15 KT
BECOMING N AFTER MIDNIGHT. WAVES 1 TO
2 FT.
TUE...N WINDS 10 TO 15 KT
BECOMING S 15 TO 20 KT. WAVES 1 TO
2 FT.
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