016
FZUS51 KLWX 282057
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
457 PM EDT TUE APR 28 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.
ANZ500-290800-
457 PM EDT TUE APR 28 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
HIGH PRESSURE EXITS OFF THE ATLANTIC COAST BEFORE THE NEXT FRONTAL
SYSTEM SLOWLY APPROACHES FROM THE WEST. THE ASSOCIATED COLD FRONT
CROSSES THE WATERS BY LATE WEDNESDAY BEFORE A TROUGH OF LOW PRESSURE
LINGERS THROUGH THE REMAINDER OF THE WEEK. SMALL CRAFT ADVISORIES
ARE LIKELY NEEDED BY WEDNESDAY AFTERNOON DUE TO INCREASING
SOUTHEASTERLY WINDS. HAZARDOUS MARINE CONDITIONS LIKELY PERSIST
THROUGH THE LATE WEEK TIMEFRAME.
ANZ535-290800-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
457 PM EDT TUE APR 28 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY MORNING THROUGH
LATE WEDNESDAY NIGHT...
REST OF THIS AFTERNOON
S WINDS 10 KT. WAVES 1 FT.
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SE WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
WAVES 1 FT. SHOWERS WITH A CHANCE OF TSTMS.
WED NIGHT...S WINDS 5 TO 10 KT
BECOMING W AFTER MIDNIGHT. GUSTS
UP TO 20 KT. WAVES 1 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
THU
NW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
THU NIGHT...NW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT
DIMINISHING
TO 5 KT AFTER MIDNIGHT. WAVES 1 FT.
FRI
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SAT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ536-290800-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
457 PM EDT TUE APR 28 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY MORNING THROUGH
LATE WEDNESDAY NIGHT...
REST OF THIS AFTERNOON
S WINDS 10 KT. WAVES 1 FT.
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SE WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS WITH A CHANCE OF
TSTMS.
WED NIGHT...S WINDS 5 TO 10 KT
BECOMING W 10 TO 15 KT AFTER
MIDNIGHT. GUSTS UP TO 20 KT. WAVES 1 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS.
THU
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
THU NIGHT...NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
DIMINISHING
TO 5 KT AFTER MIDNIGHT. WAVES 1 FT.
FRI
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SAT
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS THROUGH
THE DAY.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ537-290800-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
457 PM EDT TUE APR 28 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY MORNING THROUGH
LATE WEDNESDAY NIGHT...
REST OF THIS AFTERNOON
SE WINDS 10 KT. WAVES 1 FT.
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE LATE MORNING
AND AFTERNOON. WAVES 1 TO 2 FT. SHOWERS WITH A CHANCE OF TSTMS.
WED NIGHT...SE WINDS 10 TO 15 KT
BECOMING W AFTER MIDNIGHT. GUSTS
UP TO 20 KT. WAVES 2 FT. SHOWERS WITH A CHANCE OF TSTMS.
THU
NW WINDS 15 TO 20 KT. WAVES 2 FT.
THU NIGHT
NW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
FRI
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS THROUGH
THE NIGHT.
SAT
N WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ530-290800-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
457 PM EDT TUE APR 28 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY MORNING THROUGH
LATE WEDNESDAY NIGHT...
REST OF THIS AFTERNOON
S WINDS 10 KT. WAVES 1 FT. A SLIGHT CHANCE
OF SHOWERS.
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SE WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS WITH A CHANCE OF
TSTMS.
WED NIGHT...SE WINDS 5 TO 10 KT
BECOMING W AFTER MIDNIGHT. WAVES
1 FT. SHOWERS WITH A CHANCE OF TSTMS.
THU
NW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
THU NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
FRI
W WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
THROUGH THE NIGHT.
SAT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ531-290800-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
457 PM EDT TUE APR 28 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY MORNING THROUGH
LATE WEDNESDAY NIGHT...
REST OF THIS AFTERNOON
S WINDS 10 KT. WAVES 1 FT.
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
SHOWERS WITH A CHANCE OF TSTMS.
WED NIGHT...SE WINDS 10 TO 15 KT
BECOMING W AFTER MIDNIGHT. GUSTS
UP TO 20 KT. WAVES 1 TO 2 FT. SHOWERS WITH A CHANCE OF TSTMS.
THU
NW WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
THU NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
FRI
NW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS.
SAT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ538-290800-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
457 PM EDT TUE APR 28 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY MORNING THROUGH
LATE WEDNESDAY NIGHT...
REST OF THIS AFTERNOON
SE WINDS 10 KT. WAVES 1 FT.
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SE WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE AFTERNOON.
WAVES 1 FT. SHOWERS WITH A CHANCE OF TSTMS.
WED NIGHT...SE WINDS 5 TO 10 KT
BECOMING W AFTER MIDNIGHT. WAVES
1 FT. SHOWERS WITH A CHANCE OF TSTMS.
THU
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
THU NIGHT
NW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 FT.
FRI
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
THROUGH THE NIGHT.
SAT
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ539-290800-
CHESTER RIVER TO QUEENSTOWN MD-
457 PM EDT TUE APR 28 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY MORNING THROUGH
LATE WEDNESDAY NIGHT...
REST OF THIS AFTERNOON
S WINDS 10 KT. WAVES 1 FT.
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SE WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS WITH A CHANCE OF
TSTMS.
WED NIGHT...SE WINDS 10 KT
BECOMING W AFTER MIDNIGHT. WAVES 1 FT.
SHOWERS WITH A CHANCE OF TSTMS.
THU
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
THU NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
FRI
NW WINDS 5 TO 10 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS.
SAT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ532-290800-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
457 PM EDT TUE APR 28 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY MORNING THROUGH
LATE WEDNESDAY NIGHT...
REST OF THIS AFTERNOON
S WINDS 10 KT. WAVES 2 FT.
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
WED
SE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE LATE MORNING
AND AFTERNOON. WAVES 1 TO 2 FT. SHOWERS WITH A CHANCE OF TSTMS.
WED NIGHT...SE WINDS 10 TO 15 KT
BECOMING W AFTER MIDNIGHT. GUSTS
UP TO 20 KT. WAVES 2 TO 3 FT. SHOWERS WITH A CHANCE OF TSTMS.
THU
NW WINDS 15 TO 20 KT. WAVES 2 FT.
THU NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
FRI
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SAT
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS THROUGH
THE DAY.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ540-290800-
EASTERN BAY-
457 PM EDT TUE APR 28 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY MORNING THROUGH
LATE WEDNESDAY NIGHT...
REST OF THIS AFTERNOON
S WINDS 10 KT. WAVES 1 FT.
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT. SHOWERS
WITH A CHANCE OF TSTMS.
WED NIGHT...SE WINDS 10 TO 15 KT
BECOMING W AFTER MIDNIGHT. GUSTS
UP TO 20 KT. WAVES 1 FT. SHOWERS.
THU
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
THU NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
FRI
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SAT
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS THROUGH
THE DAY.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ533-290800-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
457 PM EDT TUE APR 28 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY MORNING THROUGH
LATE WEDNESDAY NIGHT...
REST OF THIS AFTERNOON
SE WINDS 10 KT. WAVES 2 FT.
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
WED
SE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 TO 3 FT.
SHOWERS WITH A CHANCE OF TSTMS.
WED NIGHT...SE WINDS 10 TO 15 KT
BECOMING W AFTER MIDNIGHT. GUSTS
UP TO 20 KT. WAVES 2 TO 3 FT. SHOWERS WITH A CHANCE OF TSTMS.
THU
NW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
THU NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
FRI
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
SAT
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ541-290800-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
457 PM EDT TUE APR 28 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY MORNING THROUGH
LATE WEDNESDAY NIGHT...
REST OF THIS AFTERNOON
SE WINDS 10 KT. WAVES 1 FT.
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SE WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE LATE MORNING
AND AFTERNOON. WAVES 1 TO 2 FT. SHOWERS.
WED NIGHT...SE WINDS 10 TO 15 KT
BECOMING W AFTER MIDNIGHT. GUSTS
UP TO 20 KT. WAVES 2 FT. SHOWERS WITH A CHANCE OF TSTMS.
THU
NW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
THU NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
FRI
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS THROUGH
THE NIGHT.
SAT
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ542-290800-
PATUXENT RIVER TO BROOMES ISLAND MD-
457 PM EDT TUE APR 28 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY MORNING THROUGH
LATE WEDNESDAY NIGHT...
REST OF THIS AFTERNOON
SE WINDS 10 KT. WAVES 1 FT.
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT. SHOWERS
WITH A CHANCE OF TSTMS.
WED NIGHT...SE WINDS 10 TO 15 KT
BECOMING W 5 TO 10 KT AFTER
MIDNIGHT. GUSTS UP TO 20 KT. WAVES 1 FT. SHOWERS WITH A CHANCE OF
TSTMS.
THU
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
THU NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS THROUGH
THE NIGHT.
SAT
N WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ534-290800-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
457 PM EDT TUE APR 28 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY MORNING THROUGH
LATE WEDNESDAY NIGHT...
REST OF THIS AFTERNOON
SE WINDS 10 KT. WAVES 2 FT.
TONIGHT
SE WINDS 10 TO 15 KT. WAVES 2 FT.
WED
SE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 TO 3 FT.
SHOWERS LIKELY WITH A CHANCE OF TSTMS.
WED NIGHT...SE WINDS 15 TO 20 KT
BECOMING W AFTER MIDNIGHT. WAVES
2 TO 3 FT. SHOWERS WITH A CHANCE OF TSTMS.
THU
NW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
THU NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 TO
3 FT.
FRI...W WINDS 10 KT
BECOMING NE. WAVES 1 TO 2 FT. A CHANCE OF
SHOWERS THROUGH THE NIGHT.
SAT
N WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ543-290800-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
457 PM EDT TUE APR 28 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM WEDNESDAY MORNING THROUGH
LATE WEDNESDAY NIGHT...
REST OF THIS AFTERNOON
SE WINDS 10 KT. WAVES 1 FT.
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
SHOWERS LIKELY.
WED NIGHT...SE WINDS 15 TO 20 KT
BECOMING W AFTER MIDNIGHT. WAVES
2 FT. SHOWERS WITH A CHANCE OF TSTMS.
THU
NW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
THU NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
FRI...W WINDS 10 KT
BECOMING SE IN THE EVENING, THEN BECOMING N
AFTER MIDNIGHT. WAVES 1 FT. A CHANCE OF SHOWERS THROUGH THE NIGHT.
SAT
N WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
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