582
FZUS51 KLWX 281459
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
1058 AM 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.
ANZ500-282000-
1058 AM 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.
ANZ535-282000-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
1058 AM EDT TUE APR 28 2026
REST OF TODAY
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS
LATE THIS MORNING.
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.
WED NIGHT...S WINDS 5 TO 10 KT
BECOMING NW 10 TO 15 KT AFTER
MIDNIGHT. GUSTS UP TO 25 KT. WAVES 1 FT. SHOWERS.
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 THROUGH
THE NIGHT.
SAT
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
ANZ536-282000-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
1058 AM EDT TUE APR 28 2026
REST OF TODAY
S WINDS 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS LATE
THIS MORNING.
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SE WINDS 10 TO 15 KT. WAVES 1 FT. SHOWERS.
WED NIGHT...S WINDS 10 TO 15 KT
BECOMING NW AFTER MIDNIGHT. GUSTS
UP TO 20 KT. WAVES 1 TO 2 FT. SHOWERS.
THU
NW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 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. A CHANCE OF SHOWERS THROUGH
THE NIGHT.
SAT
N WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
ANZ537-282000-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
1058 AM EDT TUE APR 28 2026
REST OF TODAY
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF
SHOWERS LATE THIS MORNING.
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...S WINDS 10 TO 15 KT
BECOMING W AFTER MIDNIGHT. GUSTS
UP TO 20 KT. WAVES 2 FT. SHOWERS.
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 THROUGH
THE NIGHT.
SAT
N WINDS 5 TO 10 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS.
ANZ530-282000-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
1058 AM EDT TUE APR 28 2026
REST OF TODAY
S WINDS 10 KT. WAVES 1 FT. A SLIGHT CHANCE OF
SHOWERS LATE THIS MORNING, THEN A CHANCE OF SHOWERS THIS AFTERNOON.
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SE WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS.
WED NIGHT...SE WINDS 10 TO 15 KT
BECOMING NW 5 TO 10 KT AFTER
MIDNIGHT. WAVES 1 FT. SHOWERS.
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 TO
2 FT.
FRI...W WINDS 10 TO 15 KT
BECOMING NW AROUND 5 KT AFTER MIDNIGHT.
WAVES 1 FT OR LESS. A CHANCE OF SHOWERS THROUGH THE NIGHT.
SAT
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
ANZ531-282000-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
1058 AM EDT TUE APR 28 2026
REST OF TODAY
S WINDS 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
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.
WED NIGHT...SE WINDS 10 TO 15 KT
BECOMING W AFTER MIDNIGHT. GUSTS
UP TO 20 KT. WAVES 1 TO 2 FT. SHOWERS.
THU
NW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
THU NIGHT
NW WINDS 10 TO 15 KT. GUSTS UP TO 25 KT IN THE EVENING.
WAVES 1 TO 2 FT.
FRI...W WINDS 10 TO 15 KT
BECOMING NW 5 KT AFTER MIDNIGHT. WAVES
1 TO 2 FT. A CHANCE OF SHOWERS THROUGH THE NIGHT.
SAT
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
ANZ538-282000-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
1058 AM EDT TUE APR 28 2026
REST OF TODAY
S WINDS 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
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.
WED NIGHT...SE WINDS 5 TO 10 KT
BECOMING W AFTER MIDNIGHT. GUSTS
UP TO 20 KT. WAVES 1 FT. SHOWERS.
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 20 KT. WAVES 1 FT.
FRI...W WINDS 10 TO 15 KT
BECOMING NW 5 KT AFTER MIDNIGHT. WAVES
1 FT OR LESS. A CHANCE OF SHOWERS THROUGH THE NIGHT.
SAT
NW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
ANZ539-282000-
CHESTER RIVER TO QUEENSTOWN MD-
1058 AM EDT TUE APR 28 2026
REST OF TODAY
S WINDS 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SE WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS.
WED NIGHT...SE WINDS 10 KT
BECOMING W AFTER MIDNIGHT. GUSTS UP TO
20 KT. WAVES 1 FT. SHOWERS WITH A CHANCE OF TSTMS.
THU
NW WINDS 15 TO 20 KT. WAVES 2 TO 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 TO 2 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.
ANZ532-282000-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
1058 AM EDT TUE APR 28 2026
REST OF TODAY
S WINDS 10 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS
LATE THIS MORNING, THEN A SLIGHT CHANCE OF SHOWERS THIS AFTERNOON.
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 FT...BUILDING TO 3 FT IN THE AFTERNOON.
SHOWERS.
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 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
N WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ540-282000-
EASTERN BAY-
1058 AM EDT TUE APR 28 2026
REST OF TODAY
S WINDS 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS LATE
THIS MORNING, THEN A SLIGHT CHANCE OF SHOWERS THIS AFTERNOON.
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.
WED NIGHT...SE WINDS 10 TO 15 KT
BECOMING W AFTER MIDNIGHT. GUSTS
UP TO 20 KT. WAVES 1 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 OR LESS. 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.
ANZ533-282000-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
1058 AM EDT TUE APR 28 2026
REST OF TODAY
S WINDS 10 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS
LATE THIS MORNING, THEN A SLIGHT CHANCE OF SHOWERS THIS AFTERNOON.
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 1 FT
BUILDING TO 3 FT IN THE AFTERNOON. SHOWERS.
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
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 TO 2 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ541-282000-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
1058 AM EDT TUE APR 28 2026
REST OF TODAY
S WINDS 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS LATE
THIS MORNING, THEN A SLIGHT CHANCE OF SHOWERS THIS AFTERNOON.
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 15 TO 20 KT 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 TO 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 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.
ANZ542-282000-
PATUXENT RIVER TO BROOMES ISLAND MD-
1058 AM EDT TUE APR 28 2026
REST OF TODAY
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF
SHOWERS LATE THIS MORNING, THEN A SLIGHT CHANCE OF SHOWERS THIS
AFTERNOON.
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.
WED NIGHT...S WINDS 10 TO 15 KT
BECOMING W 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.
ANZ534-282000-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
1058 AM EDT TUE APR 28 2026
REST OF TODAY
S WINDS 5 TO 10 KT. WAVES 1 TO 2 FT. A SLIGHT
CHANCE OF SHOWERS.
TONIGHT
SE WINDS 10 TO 15 KT. WAVES 2 FT.
WED
SE WINDS 15 TO 20 KT. WAVES 2 TO 3 FT. SHOWERS.
WED NIGHT...S WINDS 15 TO 20 KT
BECOMING W AFTER MIDNIGHT. GUSTS
UP TO 25 KT. WAVES 3 FT. SHOWERS WITH A CHANCE OF TSTMS.
THU
NW WINDS 20 TO 25 KT. WAVES 4 FT.
THU NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 TO
3 FT.
FRI...NW WINDS 10 TO 15 KT
BECOMING N 5 TO 10 KT AFTER MIDNIGHT.
WAVES 1 TO 2 FT. A CHANCE OF SHOWERS THROUGH THE NIGHT.
SAT...N WINDS 10 TO 15 KT
BECOMING NW AFTER MIDNIGHT. WAVES 2 FT.
A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ543-282000-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
1058 AM EDT TUE APR 28 2026
REST OF TODAY
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A SLIGHT
CHANCE OF SHOWERS.
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.
WED NIGHT...SE WINDS 15 TO 20 KT
BECOMING W AFTER MIDNIGHT. GUSTS
UP TO 25 KT. WAVES 2 FT. SHOWERS WITH A CHANCE OF TSTMS.
THU
NW WINDS 20 TO 25 KT. WAVES 2 FT.
THU NIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
FRI...W WINDS 10 TO 15 KT
BECOMING S 5 TO 10 KT IN THE EVENING,
THEN BECOMING NE AFTER MIDNIGHT. WAVES 1 FT. A CHANCE OF SHOWERS
THROUGH THE NIGHT.
SAT...N WINDS 10 TO 15 KT
BECOMING NW AFTER MIDNIGHT. WAVES 1 FT.
A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
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