738
FZUS51 KLWX 241828
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
228 PM EDT FRI APR 24 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.
ANZ500-250800-
228 PM EDT FRI APR 24 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
A BACKDOOR COLD FRONT WILL MOVE ACROSS THE AREA TODAY, BEFORE
STALLING OUT AND LINGERING NEARBY THROUGH SATURDAY NIGHT. HAZARDOUS
MARINE CONDITIONS ARE LIKELY FOR MOST OF THIS WEEKEND, BEFORE WINDS
DECREASE EARLY NEXT WEEK. HIGH PRESSURE BUILDS TO THE NORTH LATE IN
THE WEEKEND AND INTO EARLY NEXT WEEK. SMALL CRAFT ADVISORIES MAY
NEED TO BE EXTENDED THROUGH MONDAY MORNING.
ANZ535-250800-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
228 PM EDT FRI APR 24 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM SATURDAY MORNING THROUGH
SUNDAY AFTERNOON...
THIS AFTERNOON
NE WINDS 5 KT. WAVES LESS THAN 1 FT. SCATTERED
SHOWERS AND TSTMS.
TONIGHT
E WINDS 5 KT. WAVES LESS THAN 1 FT. SCATTERED SHOWERS AND
TSTMS.
SAT...E WINDS 5 TO 10 KT. GUSTS UP TO 20 KT
INCREASING TO 25 KT
LATE. WAVES 1 FT. A CHANCE OF SHOWERS.
SAT NIGHT
NE WINDS 10 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
SHOWERS.
SUN
NE WINDS 10 KT WITH GUSTS TO 25 KT. WAVES 1 FT. A CHANCE OF
SHOWERS.
SUN NIGHT
NE WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 FT. A CHANCE OF SHOWERS.
MON
NE WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ536-250800-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
228 PM EDT FRI APR 24 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM SATURDAY MORNING THROUGH
SUNDAY AFTERNOON...
THIS AFTERNOON
NE WINDS 5 KT. WAVES LESS THAN 1 FT. SCATTERED
SHOWERS AND TSTMS.
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. SCATTERED SHOWERS AND
TSTMS.
SAT
E WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT. A
CHANCE OF SHOWERS.
SAT NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SHOWERS.
SUN
NE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
SHOWERS LIKELY.
SUN NIGHT
N WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT. A
CHANCE OF SHOWERS.
MON...NE WINDS 10 TO 15 KT
DIMINISHING TO 5 TO 10 KT. WAVES 1 FT.
TUE
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ537-250800-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
228 PM EDT FRI APR 24 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT SATURDAY THROUGH
SUNDAY AFTERNOON...
THIS AFTERNOON
NE WINDS 5 TO 10 KT. WAVES 1 FT. SCATTERED SHOWERS
AND TSTMS.
TONIGHT
SE WINDS 10 KT. WAVES 2 FT. SCATTERED SHOWERS AND TSTMS.
SAT
E WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 TO 3 FT.
SAT NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
SHOWERS.
SUN
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT. SHOWERS
LIKELY.
SUN NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT. A
CHANCE OF SHOWERS.
MON...N WINDS 15 TO 20 KT
BECOMING NE 10 TO 15 KT. WAVES 2 TO
3 FT...SUBSIDING TO 1 FT AFTER MIDNIGHT. A CHANCE OF SHOWERS IN THE
MORNING.
TUE
E WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ530-250800-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
228 PM EDT FRI APR 24 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM SATURDAY MORNING THROUGH
SUNDAY AFTERNOON...
THIS AFTERNOON
E WINDS 5 KT. WAVES LESS THAN 1 FT. ISOLATED
SHOWERS AND TSTMS.
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. SCATTERED SHOWERS.
SAT
E WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 TO 2 FT.
SHOWERS LIKELY.
SAT NIGHT
E WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
SHOWERS.
SUN
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT. A
CHANCE OF SHOWERS.
SUN NIGHT
NE WINDS 10 TO 15 KT. GUSTS UP TO 25 KT IN THE EVENING.
WAVES 1 TO 2 FT.
MON
NE WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
E WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ531-250800-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
228 PM EDT FRI APR 24 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM SATURDAY MORNING THROUGH
SUNDAY AFTERNOON...
THIS AFTERNOON
E WINDS 5 KT. WAVES FLAT. SCATTERED SHOWERS WITH
ISOLATED TSTMS.
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. SCATTERED SHOWERS.
SAT
E WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 TO 3 FT. A
CHANCE OF SHOWERS.
SAT NIGHT
E WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
SHOWERS.
SUN
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT. A
CHANCE OF SHOWERS.
SUN NIGHT
NE WINDS 10 TO 15 KT. GUSTS UP TO 25 KT IN THE EVENING.
WAVES 2 TO 3 FT.
MON...NE WINDS 10 TO 15 KT
BECOMING E 5 TO 10 KT. WAVES 1 TO
2 FT.
TUE
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ538-250800-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
228 PM EDT FRI APR 24 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM SATURDAY MORNING THROUGH
SUNDAY AFTERNOON...
THIS AFTERNOON
E WINDS 5 KT. WAVES FLAT. SCATTERED SHOWERS AND
TSTMS.
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. SCATTERED SHOWERS AND
TSTMS.
SAT...E WINDS 10 TO 15 KT. GUSTS UP TO 20 KT
INCREASING TO 25 KT
IN THE AFTERNOON. WAVES 1 TO 2 FT. SHOWERS LIKELY.
SAT NIGHT
E WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
SHOWERS.
SUN
NE WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT. A CHANCE OF
SHOWERS.
SUN NIGHT
NE WINDS 10 TO 15 KT. GUSTS UP TO 25 KT IN THE EVENING.
WAVES 1 FT.
MON
NE WINDS 5 TO 10 KT. WAVES 1 FT.
TUE
SE WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ539-250800-
CHESTER RIVER TO QUEENSTOWN MD-
228 PM EDT FRI APR 24 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM SATURDAY MORNING THROUGH
SUNDAY AFTERNOON...
THIS AFTERNOON
N WINDS 5 KT. WAVES FLAT. SCATTERED SHOWERS WITH
ISOLATED TSTMS.
TONIGHT...SE WINDS 5 TO 10 KT
BECOMING E LATE. WAVES 1 FT.
SCATTERED SHOWERS.
SAT...E WINDS 10 TO 15 KT. GUSTS UP TO 20 KT
INCREASING TO 25 KT
IN THE AFTERNOON. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS.
SAT NIGHT
E WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
SHOWERS.
SUN
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT. A
CHANCE OF SHOWERS.
SUN NIGHT
NE WINDS 10 TO 15 KT. GUSTS UP TO 25 KT IN THE EVENING.
WAVES 1 TO 2 FT. A CHANCE OF SHOWERS.
MON...NE WINDS 10 TO 15 KT
BECOMING E 5 TO 10 KT. WAVES 1 TO
2 FT.
TUE
E WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ532-250800-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
228 PM EDT FRI APR 24 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM SATURDAY MORNING THROUGH
SUNDAY AFTERNOON...
THIS AFTERNOON
N WINDS 5 KT. WAVES LESS THAN 1 FT. SCATTERED
SHOWERS AND TSTMS.
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. SCATTERED SHOWERS AND
TSTMS.
SAT
E WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 TO 3 FT. A
CHANCE OF SHOWERS.
SAT NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
SHOWERS.
SUN
NE WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 3 FT. SHOWERS
LIKELY.
SUN NIGHT...NE WINDS 15 TO 20 KT. GUSTS UP TO 30 KT
DIMINISHING
TO 20 KT AFTER MIDNIGHT. WAVES 2 TO 3 FT. A CHANCE OF SHOWERS.
MON...NE WINDS 15 TO 20 KT
DIMINISHING TO 5 TO 10 KT. WAVES 1 TO
2 FT.
TUE
E WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ540-250800-
EASTERN BAY-
228 PM EDT FRI APR 24 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM SATURDAY MORNING THROUGH
SUNDAY AFTERNOON...
THIS AFTERNOON
N WINDS 5 KT. WAVES FLAT. SCATTERED SHOWERS AND
TSTMS.
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. SCATTERED SHOWERS AND
TSTMS.
SAT...E WINDS 10 TO 15 KT. GUSTS UP TO 20 KT
INCREASING TO 25 KT
IN THE AFTERNOON. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS.
SAT NIGHT
E WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
SHOWERS.
SUN
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT. SHOWERS
LIKELY.
SUN NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 1 TO
2 FT. A CHANCE OF SHOWERS.
MON...NE WINDS 10 TO 15 KT
DIMINISHING TO 5 TO 10 KT. WAVES 1 FT.
TUE
E WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ533-250800-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
228 PM EDT FRI APR 24 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT SATURDAY THROUGH
SUNDAY AFTERNOON...
THIS AFTERNOON
NE WINDS 5 KT. WAVES LESS THAN 1 FT. SCATTERED
SHOWERS AND TSTMS.
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 2 FT. SCATTERED SHOWERS AND
TSTMS.
SAT
E WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 TO 3 FT.
SAT NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
SHOWERS.
SUN
NE WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 4 FT. SHOWERS
LIKELY.
SUN NIGHT
NE WINDS 20 TO 25 KT. GUSTS UP TO 30 KT IN THE EVENING.
WAVES 3 FT. A CHANCE OF SHOWERS.
MON...N WINDS 15 TO 20 KT
BECOMING NE 10 TO 15 KT. WAVES 2 TO
3 FT...SUBSIDING TO 1 FT AFTER MIDNIGHT.
TUE
E WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ541-250800-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
228 PM EDT FRI APR 24 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM SATURDAY MORNING THROUGH
SUNDAY AFTERNOON...
THIS AFTERNOON
N WINDS 5 KT. WAVES LESS THAN 1 FT. SCATTERED
SHOWERS AND TSTMS.
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. SCATTERED SHOWERS AND
TSTMS.
SAT...E WINDS 10 TO 15 KT. GUSTS UP TO 20 KT
INCREASING TO 25 KT
LATE. WAVES 1 TO 2 FT.
SAT NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
SHOWERS.
SUN
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 TO 3 FT.
SHOWERS LIKELY.
SUN NIGHT
NE WINDS 15 TO 20 KT. GUSTS UP TO 30 KT IN THE EVENING.
WAVES 2 FT. A CHANCE OF SHOWERS.
MON...N WINDS 15 TO 20 KT
BECOMING NE 5 TO 10 KT. WAVES 1 TO
2 FT.
TUE
E WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ542-250800-
PATUXENT RIVER TO BROOMES ISLAND MD-
228 PM EDT FRI APR 24 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM SATURDAY MORNING THROUGH
SUNDAY AFTERNOON...
THIS AFTERNOON
NE WINDS 5 KT. WAVES LESS THAN 1 FT. SCATTERED
SHOWERS AND TSTMS.
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. SCATTERED SHOWERS AND
TSTMS.
SAT
E WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SAT NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT.
SHOWERS.
SUN
NE WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT. SHOWERS
LIKELY.
SUN NIGHT
NE WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT. A
CHANCE OF SHOWERS.
MON...N WINDS 10 TO 15 KT
BECOMING NE 5 TO 10 KT. WAVES 1 FT.
TUE
E WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ534-250800-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
228 PM EDT FRI APR 24 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT SATURDAY THROUGH
SUNDAY AFTERNOON...
THIS AFTERNOON...N WINDS 5 KT
BECOMING E LATE. WAVES 1 FT.
SCATTERED SHOWERS WITH ISOLATED TSTMS.
TONIGHT
SE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SCATTERED SHOWERS.
SAT
E WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
SAT NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
SHOWERS.
SUN
NE WINDS 20 KT WITH GUSTS TO 30 KT. WAVES 4 FT. SHOWERS
LIKELY.
SUN NIGHT
NE WINDS 20 TO 25 KT WITH GUSTS TO 30 KT. WAVES 4 FT. A
CHANCE OF SHOWERS.
MON...NE WINDS 15 TO 20 KT
DIMINISHING TO 5 TO 10 KT AFTER
MIDNIGHT. WAVES 2 TO 3 FT. A CHANCE OF SHOWERS IN THE MORNING.
TUE
E WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ543-250800-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
228 PM EDT FRI APR 24 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM EDT SATURDAY THROUGH
SUNDAY AFTERNOON...
THIS AFTERNOON...NE WINDS 5 KT
BECOMING E LATE. WAVES 1 FT OR
LESS. SCATTERED SHOWERS WITH ISOLATED TSTMS.
TONIGHT
SE WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SCATTERED SHOWERS.
SAT
E WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
SAT NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
SHOWERS.
SUN
NE WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT. SHOWERS
LIKELY.
SUN NIGHT
NE WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 2 FT. A
CHANCE OF SHOWERS.
MON...NE WINDS 15 TO 20 KT
DIMINISHING TO 5 TO 10 KT AFTER
MIDNIGHT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS IN THE MORNING.
TUE
E WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
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