378
FZUS51 KLWX 132058
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
458 PM EDT MON APR 13 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.
ANZ500-140800-
458 PM EDT MON APR 13 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
TEMPERATURES BEGIN TO STEADILY WARM THROUGH MID WEEK.CONDITIONS
REMAIN MOSTLY DRY THROUGH FRIDAY AS ANOTHER AREA OF HIGH PRESSURE
BUILDS ACROSS THE MID-ATLANTIC. A COLD FRONT LATE THIS WEEKEND COULD
BRING THE NEXT CHANCE FOR WIDESPREAD SHOWERS. SMALL CRAFT
ADVISORIES MAY BE NEEDED THIS EVENING AND AT TIMES EACH AFTERNOON
TUESDAY THROUGH THURSDAY.
ANZ535-140800-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
458 PM EDT MON APR 13 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
REST OF THIS AFTERNOON
SW WINDS 15 KT WITH GUSTS TO 25 KT. WAVES
1 FT. ISOLATED SHOWERS.
TONIGHT
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT EARLY IN THE
EVENING. WAVES 1 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
SW WINDS AROUND 5 KT. WAVES 1 FT.
THU
SW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
NW WINDS AROUND 5 KT. WAVES 1 FT.
ANZ536-140800-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
458 PM EDT MON APR 13 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
REST OF THIS AFTERNOON
SW WINDS 15 KT WITH GUSTS TO 20 KT. WAVES
2 FT. ISOLATED SHOWERS.
TONIGHT
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT EARLY IN THE
EVENING. WAVES 1 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
THU
SW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
NW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
ANZ537-140800-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
458 PM EDT MON APR 13 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
REST OF THIS AFTERNOON
SW WINDS 15 KT WITH GUSTS TO 20 KT. WAVES
2 FT.
TONIGHT
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT EARLY IN THE
EVENING. WAVES 1 TO 2 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
THU
SW WINDS 10 TO 15 KT. WAVES 1 FT.
FRI
W WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
ANZ530-140800-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
458 PM EDT MON APR 13 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
REST OF THIS AFTERNOON
SW WINDS 15 KT WITH GUSTS TO 25 KT. WAVES
2 FT.
TONIGHT...SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
DIMINISHING
TO AROUND 5 KT IN THE LATE EVENING AND OVERNIGHT. WAVES 1 TO 2 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TUE NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
THU
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
FRI
NW WINDS AROUND 5 KT. WAVES 1 FT OR LESS. A CHANCE OF
SHOWERS.
ANZ531-140800-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
458 PM EDT MON APR 13 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
REST OF THIS AFTERNOON
SW WINDS 15 KT WITH GUSTS TO 25 KT. WAVES
3 FT.
TONIGHT...SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
DIMINISHING
TO 5 KT LATE. WAVES 1 TO 2 FT.
TUE
S WINDS 5 TO 10 KT. WAVES 1 FT.
TUE NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
THU
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
FRI
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS.
ANZ538-140800-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
458 PM EDT MON APR 13 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
REST OF THIS AFTERNOON
SW WINDS 15 KT WITH GUSTS TO 25 KT. WAVES
2 FT. ISOLATED SHOWERS.
TONIGHT
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT EARLY IN THE
EVENING. WAVES 1 FT OR LESS.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TUE NIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
WED
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
WED NIGHT
SW WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
THU
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
FRI
NW WINDS AROUND 5 KT. WAVES 1 FT OR LESS. A CHANCE OF
SHOWERS.
ANZ539-140800-
CHESTER RIVER TO QUEENSTOWN MD-
458 PM EDT MON APR 13 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
REST OF THIS AFTERNOON
SW WINDS 15 KT WITH GUSTS TO 20 KT. WAVES
3 FT.
TONIGHT
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT EARLY IN THE
EVENING. WAVES 1 TO 2 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
WED NIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
THU
SW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
FRI
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS.
ANZ532-140800-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
458 PM EDT MON APR 13 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
REST OF THIS AFTERNOON
SW WINDS 15 KT WITH GUSTS TO 25 KT. WAVES
3 FT.
TONIGHT...SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
DIMINISHING
TO 5 KT LATE. WAVES 3 FT...SUBSIDING TO 1 FT AFTER MIDNIGHT.
TUE
S WINDS 5 TO 10 KT. WAVES 1 FT.
TUE NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
THU
SW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
FRI
W WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
THROUGH THE NIGHT.
ANZ540-140800-
EASTERN BAY-
458 PM EDT MON APR 13 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
REST OF THIS AFTERNOON
SW WINDS 15 KT WITH GUSTS TO 25 KT. WAVES
2 FT.
TONIGHT
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 TO 2 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
THU
SW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
W WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
THROUGH THE NIGHT.
ANZ533-140800-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
458 PM EDT MON APR 13 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
REST OF THIS AFTERNOON
SW WINDS 15 KT WITH GUSTS TO 20 KT. WAVES
3 FT.
TONIGHT
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 TO 2 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
THU
SW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
FRI
W WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
IN THE EVENING.
ANZ541-140800-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
458 PM EDT MON APR 13 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
REST OF THIS AFTERNOON
SW WINDS 15 KT WITH GUSTS TO 25 KT. WAVES
2 FT.
TONIGHT
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 TO 2 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
THU
SW WINDS 10 TO 15 KT. WAVES 1 FT.
FRI
W WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
ANZ542-140800-
PATUXENT RIVER TO BROOMES ISLAND MD-
458 PM EDT MON APR 13 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
REST OF THIS AFTERNOON
SW WINDS 10 KT WITH GUSTS TO 20 KT. WAVES
1 FT.
TONIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
WED NIGHT
SW WINDS 5 KT. WAVES LESS THAN 1 FT.
THU
SW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
W WINDS AROUND 5 KT. WAVES 1 FT OR LESS.
ANZ534-140800-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
458 PM EDT MON APR 13 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
REST OF THIS AFTERNOON
SW WINDS 15 KT WITH GUSTS TO 20 KT. WAVES
3 FT.
TONIGHT
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 TO
3 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
TUE NIGHT
SW WINDS 10 KT. WAVES 2 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
SW WINDS 10 KT. WAVES 1 FT.
THU
SW WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
FRI...W WINDS 10 TO 15 KT...BECOMING SW 5 KT. WAVES 1 TO 2 FT
SUBSIDING TO FLAT AFTER MIDNIGHT.
ANZ543-140800-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
458 PM EDT MON APR 13 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING
REST OF THIS AFTERNOON
SW WINDS 15 KT WITH GUSTS TO 25 KT. WAVES
2 FT.
TONIGHT
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
TUE
SW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED
SW WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT.
THU
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
FRI...W WINDS 10 TO 15 KT
BECOMING SW 5 KT. WAVES 1 FT OR LESS.
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