137
FZUS51 KLWX 230857
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
457 AM EDT MON MAR 23 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.
ANZ500-232300-
457 AM EDT MON MAR 23 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
HIGH PRESSURE WILL BUILD IN BEHIND A DEPARTING COLD FRONT AND
PERSIST THROUGH EARLY THIS WEEK. THE NEXT COLD FRONT APPROACHES
THURSDAY, THEN CROSSES SOMETIME THURSDAY NIGHT INTO FRIDAY. SMALL
CRAFT ADVISORIES MAY BE NEEDED THURSDAY INTO FRIDAY.
ANZ535-232300-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
457 AM EDT MON MAR 23 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THE OVERNIGHT
N WINDS 10 KT WITH GUSTS TO 20 KT. WAVES
1 FT. NUMEROUS SHOWERS WITH ISOLATED TSTMS.
TODAY...N WINDS 5 TO 10 KT WITH GUSTS TO 20 KT
BECOMING NW 15 KT
WITH GUSTS TO 30 KT IN THE AFTERNOON. WAVES 1 FT. SHOWERS.
TONIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
TUE
NW WINDS 5 TO 10 KT. WAVES 1 FT.
TUE NIGHT
S WINDS AROUND 5 KT. WAVES 1 FT.
WED
S WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
THU
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF RAIN AFTER
MIDNIGHT.
FRI
NW WINDS 5 TO 10 KT. WAVES 1 FT. RAIN LIKELY THROUGH THE DAY,
THEN A CHANCE OF RAIN AND SNOW THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ536-232300-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
457 AM EDT MON MAR 23 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THE OVERNIGHT
N WINDS 10 KT WITH GUSTS TO 20 KT. WAVES
1 FT. SCATTERED SHOWERS WITH ISOLATED TSTMS.
TODAY
N WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 1 TO 2 FT.
NUMEROUS SHOWERS.
TONIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
TUE
N WINDS 5 TO 10 KT. WAVES 1 FT.
TUE NIGHT
S WINDS AROUND 5 KT. WAVES 1 FT.
WED
S WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
THU
SW WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF RAIN AFTER
MIDNIGHT.
FRI...W WINDS 10 TO 15 KT
BECOMING N. WAVES 1 FT. RAIN LIKELY
THROUGH THE DAY, THEN A CHANCE OF SNOW IN THE EVENING. A CHANCE OF
RAIN THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ537-232300-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
457 AM EDT MON MAR 23 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THE OVERNIGHT
NW WINDS 10 KT. WAVES 1 FT. ISOLATED
SHOWERS AND TSTMS.
TODAY...N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT
INCREASING TO
25 KT LATE. WAVES 1 TO 2 FT. SCATTERED SHOWERS.
TONIGHT
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
TUE...N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING NE 5 KT
IN THE AFTERNOON. WAVES 1 TO 2 FT.
TUE NIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
WED
S WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
S WINDS 10 KT. WAVES 1 FT.
THU
SW WINDS 15 TO 20 KT. WAVES 1 TO 2 FT. A CHANCE OF RAIN AFTER
MIDNIGHT.
FRI...SW WINDS 15 TO 20 KT
BECOMING N. WAVES 2 FT. A CHANCE OF
RAIN.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ530-232300-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
457 AM EDT MON MAR 23 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THE OVERNIGHT
N WINDS 10 KT WITH GUSTS TO 20 KT. WAVES
1 FT. NUMEROUS SHOWERS WITH ISOLATED TSTMS.
TODAY
N WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 TO 2 FT.
SHOWERS.
TONIGHT
NW WINDS 10 TO 15 KT. GUSTS UP TO 25 KT UNTIL EARLY
MORNING. WAVES 1 TO 2 FT.
TUE
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
TUE NIGHT
S WINDS AROUND 5 KT. WAVES FLAT.
WED
S WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
THU
SW WINDS 10 TO 15 KT. WAVES 1 FT. RAIN LIKELY AFTER MIDNIGHT.
FRI...W WINDS 10 TO 15 KT
BECOMING N. WAVES 1 FT. RAIN LIKELY IN
THE MORNING, THEN A CHANCE OF RAIN THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ531-232300-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
457 AM EDT MON MAR 23 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THE OVERNIGHT
N WINDS 15 KT WITH GUSTS TO 20 KT. WAVES
1 FT. SCATTERED SHOWERS WITH ISOLATED TSTMS.
TODAY
N WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 2 TO 3 FT.
NUMEROUS SHOWERS.
TONIGHT
NW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 TO
3 FT.
TUE...N WINDS 10 TO 15 KT
BECOMING SW AROUND 5 KT IN THE
AFTERNOON. WAVES 1 TO 2 FT.
TUE NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
WED
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
WED NIGHT
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
THU
SW WINDS 15 TO 20 KT. WAVES 1 TO 2 FT. A CHANCE OF RAIN AFTER
MIDNIGHT.
FRI...W WINDS 15 TO 20 KT
BECOMING N. WAVES 2 FT. A CHANCE OF
RAIN.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ538-232300-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
457 AM EDT MON MAR 23 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THE OVERNIGHT
N WINDS 10 KT WITH GUSTS TO 20 KT. WAVES
1 FT. NUMEROUS SHOWERS WITH ISOLATED TSTMS.
TODAY...N WINDS 10 TO 15 KT
BECOMING NW LATE. GUSTS UP TO 25 KT.
WAVES 1 TO 2 FT. SHOWERS.
TONIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 TO
2 FT.
TUE...N WINDS 5 TO 10 KT
BECOMING S IN THE AFTERNOON. WAVES 1 FT
OR LESS.
TUE NIGHT
S WINDS 5 KT. WAVES FLAT.
WED
S WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
THU
SW WINDS 5 TO 10 KT. WAVES 1 FT. RAIN LIKELY AFTER MIDNIGHT.
FRI...W WINDS 10 TO 15 KT
BECOMING N. WAVES 1 FT. RAIN LIKELY IN
THE MORNING, THEN A CHANCE OF RAIN THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ539-232300-
CHESTER RIVER TO QUEENSTOWN MD-
457 AM EDT MON MAR 23 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THE OVERNIGHT
N WINDS 10 KT. WAVES 1 FT. SCATTERED
SHOWERS WITH ISOLATED TSTMS.
TODAY
N WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 2 TO 3 FT.
NUMEROUS SHOWERS.
TONIGHT
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 TO 3 FT.
TUE...N WINDS 10 TO 15 KT
BECOMING W AROUND 5 KT IN THE
AFTERNOON. WAVES 1 TO 2 FT.
TUE NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WED
S WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
S WINDS 10 KT. WAVES 1 FT.
THU
S WINDS 15 TO 20 KT. WAVES 1 TO 2 FT. A CHANCE OF RAIN AFTER
MIDNIGHT.
FRI...W WINDS 15 TO 20 KT
BECOMING N 10 TO 15 KT. WAVES 2 FT.
RAIN LIKELY THROUGH THE DAY, THEN A CHANCE OF RAIN IN THE EVENING.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ532-232300-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
457 AM EDT MON MAR 23 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THE OVERNIGHT
N WINDS 15 KT WITH GUSTS TO 20 KT. WAVES
2 FT. SCATTERED SHOWERS WITH ISOLATED TSTMS.
TODAY
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 TO 3 FT.
NUMEROUS SHOWERS.
TONIGHT
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
TUE...N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING NE 5 KT
IN THE AFTERNOON. WAVES 1 TO 2 FT.
TUE NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
WED
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
WED NIGHT
S WINDS 10 TO 15 KT. WAVES 2 FT.
THU...SW WINDS 10 KT
INCREASING TO 15 TO 20 KT. WAVES 2 TO 3 FT.
A CHANCE OF RAIN AFTER MIDNIGHT.
FRI...W WINDS 15 TO 20 KT
BECOMING N. WAVES 2 TO 3 FT. RAIN
LIKELY THROUGH THE DAY, THEN A CHANCE OF SNOW IN THE EVENING. A
CHANCE OF RAIN THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ540-232300-
EASTERN BAY-
457 AM EDT MON MAR 23 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THE OVERNIGHT
N WINDS 15 KT. WAVES 1 FT. SCATTERED
SHOWERS WITH ISOLATED TSTMS.
TODAY
N WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
NUMEROUS SHOWERS.
TONIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
TUE...N WINDS 10 TO 15 KT
BECOMING NW 5 KT IN THE AFTERNOON.
WAVES 1 FT.
TUE NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
WED
S WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
S WINDS 10 KT. WAVES 1 FT.
THU
S WINDS 15 TO 20 KT. WAVES 1 TO 2 FT. A CHANCE OF RAIN AFTER
MIDNIGHT.
FRI...W WINDS 15 TO 20 KT
BECOMING N 10 TO 15 KT. WAVES 1 TO
2 FT. RAIN LIKELY THROUGH THE DAY, THEN A CHANCE OF RAIN THROUGH THE
NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ533-232300-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
457 AM EDT MON MAR 23 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THE OVERNIGHT
N WINDS 15 KT WITH GUSTS TO 20 KT. WAVES
2 FT. SCATTERED SHOWERS WITH ISOLATED TSTMS.
TODAY
N WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 2 TO 3 FT.
SCATTERED SHOWERS.
TONIGHT
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
TUE
N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE MORNING. WAVES
3 FT...SUBSIDING TO 1 FT IN THE AFTERNOON.
TUE NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
WED
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
WED NIGHT
S WINDS 10 TO 15 KT. WAVES 2 FT.
THU
SW WINDS 15 TO 20 KT. WAVES 2 TO 3 FT. A CHANCE OF RAIN AFTER
MIDNIGHT.
FRI...W WINDS 15 TO 20 KT
BECOMING N 20 TO 25 KT. WAVES 2 TO
3 FT. RAIN LIKELY THROUGH THE DAY, THEN A CHANCE OF RAIN THROUGH THE
NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ541-232300-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
457 AM EDT MON MAR 23 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THE OVERNIGHT
N WINDS 15 KT. WAVES 1 FT. ISOLATED SHOWERS
AND TSTMS.
TODAY
N WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
NUMEROUS SHOWERS.
TONIGHT
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
TUE...N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING NW 5 TO
10 KT IN THE AFTERNOON. WAVES 1 TO 2 FT.
TUE NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
WED
S WINDS 10 TO 15 KT. WAVES 1 FT.
WED NIGHT
S WINDS 10 TO 15 KT. WAVES 1 FT.
THU
S WINDS 15 TO 20 KT. WAVES 1 TO 2 FT. A CHANCE OF RAIN AFTER
MIDNIGHT.
FRI...W WINDS 15 TO 20 KT
BECOMING N. WAVES 2 TO 3 FT. RAIN
LIKELY THROUGH THE DAY, THEN A CHANCE OF RAIN THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ542-232300-
PATUXENT RIVER TO BROOMES ISLAND MD-
457 AM EDT MON MAR 23 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THE OVERNIGHT
NW WINDS 10 KT WITH GUSTS TO 20 KT. WAVES
1 FT. SCATTERED SHOWERS WITH ISOLATED TSTMS.
TODAY
N WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
NUMEROUS SHOWERS.
TONIGHT
NW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
TUE
NE WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE MORNING. WAVES
1 FT.
TUE NIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT.
WED
S WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
THU
SW WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF RAIN AFTER
MIDNIGHT.
FRI...W WINDS 10 TO 15 KT
BECOMING N. WAVES 1 FT. RAIN LIKELY
THROUGH THE DAY, THEN A CHANCE OF RAIN THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ534-232300-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
457 AM EDT MON MAR 23 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THE OVERNIGHT
NW WINDS 15 KT WITH GUSTS TO 20 KT. WAVES
2 FT. ISOLATED SHOWERS AND TSTMS.
TODAY
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 TO 3 FT.
SCATTERED SHOWERS.
TONIGHT
N WINDS 20 TO 25 KT. WAVES 4 FT.
TUE...N WINDS 15 TO 20 KT
BECOMING NW 5 TO 10 KT IN THE
AFTERNOON. WAVES 3 FT...SUBSIDING TO 1 FT IN THE AFTERNOON.
TUE NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
WED
S WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
S WINDS 10 TO 15 KT. WAVES 2 FT.
THU
S WINDS 15 TO 20 KT. WAVES 2 TO 3 FT. A CHANCE OF RAIN AFTER
MIDNIGHT.
FRI...SW WINDS 15 TO 20 KT
BECOMING N. WAVES 3 FT. A CHANCE OF
RAIN.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ543-232300-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
457 AM EDT MON MAR 23 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THE OVERNIGHT
W WINDS 15 KT. WAVES 1 FT. ISOLATED SHOWERS
AND TSTMS.
TODAY...N WINDS 10 TO 15 KT. GUSTS UP TO 20 KT
INCREASING TO
25 KT IN THE AFTERNOON. WAVES 1 TO 2 FT. SCATTERED SHOWERS.
TONIGHT
N WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
TUE...N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT
BECOMING NW 5 TO
10 KT IN THE AFTERNOON. WAVES 1 TO 2 FT.
TUE NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
WED
S WINDS 5 TO 10 KT. WAVES 1 FT.
WED NIGHT
S WINDS 10 KT. WAVES 1 FT.
THU
S WINDS 15 TO 20 KT. WAVES 1 TO 2 FT. A CHANCE OF RAIN AFTER
MIDNIGHT.
FRI...SW WINDS 15 TO 20 KT
BECOMING N. WAVES 2 FT. A CHANCE OF
RAIN.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
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