720
FZUS51 KLWX 172057
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
457 PM EDT WED JUN 17 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.
ANZ500-180800-
457 PM EDT WED JUN 17 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
A STRONG LOW PRESSURE SYSTEM WILL MOVE ACROSS THE GREAT LAKES
TONIGHT, SENDING A COLD FRONT ACROSS THE WATERS THURSDAY INTO FRIDAY
MORNING. HIGH PRESSURE WILL BUILD NEAR THE AREA OVER THE WEEKEND
BEFORE ANOTHER FRONTAL SYSTEM APPROACHES THE AREA EARLY NEXT WEEK.
SMALL CRAFT ADVISORIES WILL LIKELY BE NEEDED FOR PORTIONS OF THE
WATERS FRIDAY AND SATURDAY.
ANZ535-180800-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
457 PM EDT WED JUN 17 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT EDT TONIGHT THROUGH
THURSDAY MORNING...
...GALE WATCH IN EFFECT FROM THURSDAY MORNING THROUGH THURSDAY
EVENING...
REST OF THIS AFTERNOON
S WINDS 10 KT WITH GUSTS TO 20 KT. WAVES
1 FT. SCATTERED SPRINKLES.
TONIGHT
S WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
THU...SW WINDS 15 TO 20 KT WITH GUSTS TO 30 KT
BECOMING W WITH
GUSTS TO 35 KT LATE. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS AND TSTMS.
THU NIGHT...W WINDS 10 TO 15 KT WITH GUSTS TO 25 KT
DIMINISHING
TO AROUND 5 KT AFTER MIDNIGHT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
FRI
NW WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
FRI NIGHT
NW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 FT.
SAT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SUN...SW WINDS AROUND 5 KT
BECOMING S AFTER MIDNIGHT. WAVES 1 FT.
A CHANCE OF SHOWERS AFTER MIDNIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ536-180800-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
457 PM EDT WED JUN 17 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT EDT TONIGHT THROUGH
THURSDAY EVENING...
REST OF THIS AFTERNOON
S WINDS 10 KT. WAVES 1 FT.
TONIGHT
S WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
THU
SW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT. A
CHANCE OF SHOWERS AND TSTMS.
THU NIGHT...W WINDS 10 TO 15 KT WITH GUSTS TO 25 KT
DIMINISHING
TO AROUND 5 KT AFTER MIDNIGHT. WAVES 1 FT. A CHANCE OF SHOWERS AND
TSTMS.
FRI
NW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
SW WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AFTER
MIDNIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ537-180800-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
457 PM EDT WED JUN 17 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT EDT TONIGHT THROUGH
THURSDAY EVENING...
REST OF THIS AFTERNOON
SE WINDS 15 KT. WAVES 2 FT.
TONIGHT
S WINDS 10 TO 15 KT. WAVES 2 FT.
THU
SW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT. A
CHANCE OF SHOWERS AND TSTMS.
THU NIGHT
SW WINDS 10 TO 15 KT. GUSTS UP TO 25 KT IN THE EVENING.
WAVES 1 TO 2 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
FRI
NW WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS.
FRI NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SUN...SW WINDS 5 TO 10 KT
BECOMING S. WAVES 1 FT OR LESS. A
CHANCE OF SHOWERS AFTER MIDNIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ530-180800-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
457 PM EDT WED JUN 17 2026
...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT EDT TONIGHT THROUGH
THURSDAY MORNING...
...GALE WATCH IN EFFECT FROM THURSDAY MORNING THROUGH THURSDAY
EVENING...
REST OF THIS AFTERNOON
S WINDS 10 KT. WAVES 1 FT. SCATTERED
SPRINKLES.
TONIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
THU...SW WINDS 15 TO 20 KT WITH GUSTS TO 30 KT
BECOMING SW 15 TO
20 KT WITH GUSTS TO 35 KT LATE. WAVES 3 FT. A CHANCE OF SHOWERS AND
TSTMS.
THU NIGHT
W WINDS 10 TO 15 KT. GUSTS UP TO 30 KT IN THE EVENING.
WAVES 1 TO 2 FT.
FRI
W WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
FRI NIGHT
NW WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SAT...NW WINDS 10 TO 15 KT
DIMINISHING TO AROUND 5 KT AFTER
MIDNIGHT. WAVES 1 FT.
SUN
N WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS AFTER
MIDNIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ531-180800-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
457 PM EDT WED JUN 17 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING
...GALE WATCH IN EFFECT FROM THURSDAY MORNING THROUGH THURSDAY
EVENING...
REST OF THIS AFTERNOON
S WINDS 15 KT WITH GUSTS TO 20 KT. WAVES
2 FT. SCATTERED SPRINKLES.
TONIGHT
S WINDS 15 TO 20 KT. WAVES 2 FT.
THU
SW WINDS 15 TO 20 KT WITH GUSTS TO 35 KT. WAVES 3 FT. A
CHANCE OF SHOWERS AND TSTMS.
THU NIGHT
W WINDS 10 TO 15 KT. GUSTS UP TO 30 KT IN THE EVENING.
WAVES 3 FT...SUBSIDING TO 1 FT AFTER MIDNIGHT.
FRI
W WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
FRI NIGHT
NW WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SAT...NW WINDS 10 TO 15 KT
DIMINISHING TO 5 KT AFTER MIDNIGHT.
WAVES 1 TO 2 FT.
SUN...SW WINDS 5 TO 10 KT
BECOMING SE. WAVES 1 FT OR LESS. A
CHANCE OF SHOWERS AFTER MIDNIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ538-180800-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
457 PM EDT WED JUN 17 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY MORNING
...GALE WATCH IN EFFECT FROM THURSDAY MORNING THROUGH THURSDAY
EVENING...
REST OF THIS AFTERNOON
SE WINDS 10 KT. WAVES 1 FT. SCATTERED
SHOWERS.
TONIGHT
S WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
THU...SW WINDS 15 TO 20 KT WITH GUSTS TO 30 KT
BECOMING W WITH
GUSTS TO 30 KT LATE. WAVES 2 FT. A CHANCE OF SHOWERS AND TSTMS.
THU NIGHT
W WINDS 10 TO 15 KT. GUSTS UP TO 25 KT IN THE EVENING.
WAVES 1 TO 2 FT.
FRI
W WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE AFTERNOON. WAVES
1 FT.
FRI NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
NW WINDS 5 TO 10 KT. WAVES 1 FT OR LESS.
SUN
S WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS AFTER
MIDNIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ539-180800-
CHESTER RIVER TO QUEENSTOWN MD-
457 PM EDT WED JUN 17 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY EVENING
REST OF THIS AFTERNOON
S WINDS 10 KT. WAVES 1 FT. SCATTERED
SPRINKLES.
TONIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
THU...S WINDS 15 TO 20 KT
BECOMING SW LATE. GUSTS UP TO 30 KT.
WAVES 3 FT. A CHANCE OF SHOWERS AND TSTMS.
THU NIGHT
W WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
FRI
W WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
NW WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
SUN...SW WINDS 5 KT
BECOMING SE AFTER MIDNIGHT. WAVES 1 FT OR
LESS. A CHANCE OF SHOWERS AFTER MIDNIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ532-180800-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
457 PM EDT WED JUN 17 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY EVENING
REST OF THIS AFTERNOON
SE WINDS 15 KT WITH GUSTS TO 20 KT. WAVES
2 FT. SCATTERED SPRINKLES.
TONIGHT
S WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 3 FT.
THU
SW WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 3 FT. A
CHANCE OF SHOWERS AND TSTMS.
THU NIGHT
W WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 3 FT...SUBSIDING TO 1 FT AFTER MIDNIGHT. A CHANCE OF SHOWERS
AND TSTMS.
FRI
NW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SUN...SW WINDS 5 TO 10 KT...BECOMING SE. WAVES 1 FT OR LESS
BUILDING TO 2 FT AFTER MIDNIGHT. A CHANCE OF SHOWERS AFTER MIDNIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ540-180800-
EASTERN BAY-
457 PM EDT WED JUN 17 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY EVENING
REST OF THIS AFTERNOON
S WINDS 15 KT WITH GUSTS TO 20 KT. WAVES
1 FT. SCATTERED SPRINKLES.
TONIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
THU
SW WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 2 TO 3 FT. A
CHANCE OF SHOWERS AND TSTMS.
THU NIGHT
W WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 TO 2 FT. A CHANCE OF SHOWERS.
FRI
NW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SUN...SW WINDS AROUND 5 KT
BECOMING SE AFTER MIDNIGHT. WAVES 1 FT
OR LESS. A CHANCE OF SHOWERS AFTER MIDNIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ533-180800-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
457 PM EDT WED JUN 17 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY EVENING
REST OF THIS AFTERNOON
SE WINDS 15 KT WITH GUSTS TO 20 KT. WAVES
2 FT.
TONIGHT
S WINDS 15 TO 20 KT. WAVES 2 TO 3 FT.
THU
SW WINDS 15 TO 20 KT WITH GUSTS TO 30 KT. WAVES 3 FT. A
CHANCE OF SHOWERS AND TSTMS.
THU NIGHT
W WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT. A CHANCE OF SHOWERS AND TSTMS.
FRI
NW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SAT...NW WINDS 10 TO 15 KT
DIMINISHING TO 5 KT AFTER MIDNIGHT.
WAVES 1 TO 2 FT.
SUN...W WINDS 5 KT...BECOMING S 10 TO 15 KT. WAVES 1 FT OR LESS
BUILDING TO 2 FT AFTER MIDNIGHT. A CHANCE OF SHOWERS AFTER MIDNIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ541-180800-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
457 PM EDT WED JUN 17 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY EVENING
REST OF THIS AFTERNOON
S WINDS 15 KT WITH GUSTS TO 20 KT. WAVES
1 FT.
TONIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
THU
SW WINDS 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT. A CHANCE OF
SHOWERS AND TSTMS.
THU NIGHT
W WINDS 10 TO 15 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 TO 2 FT. A CHANCE OF SHOWERS AND TSTMS.
FRI
NW WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SUN...W WINDS 5 TO 10 KT
BECOMING S. WAVES 1 FT OR LESS. A CHANCE
OF SHOWERS AFTER MIDNIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ542-180800-
PATUXENT RIVER TO BROOMES ISLAND MD-
457 PM EDT WED JUN 17 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY EVENING
REST OF THIS AFTERNOON
SE WINDS 10 KT. WAVES 1 FT.
TONIGHT
S WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
THU
SW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 FT. A
CHANCE OF SHOWERS AND TSTMS.
THU NIGHT
W WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 FT. A CHANCE OF SHOWERS AND TSTMS.
FRI
NW WINDS 5 KT. WAVES LESS THAN 1 FT. A CHANCE OF SHOWERS.
FRI NIGHT
NW WINDS 5 KT. WAVES LESS THAN 1 FT.
SAT
NW WINDS 5 TO 10 KT. WAVES 1 FT.
SUN
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS AFTER
MIDNIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ534-180800-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
457 PM EDT WED JUN 17 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY EVENING
REST OF THIS AFTERNOON
SE WINDS 15 KT WITH GUSTS TO 20 KT. WAVES
2 FT.
TONIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 3 FT.
THU
SW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 3 FT. A
CHANCE OF SHOWERS AND TSTMS.
THU NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 TO
3 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
FRI
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
FRI NIGHT
W WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
SAT
NW WINDS 5 TO 10 KT. WAVES 1 TO 2 FT.
SUN...W WINDS 5 KT
BECOMING S 10 TO 15 KT. WAVES 1 TO 2 FT. A
CHANCE OF SHOWERS AFTER MIDNIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ543-180800-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
457 PM EDT WED JUN 17 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY EVENING
REST OF THIS AFTERNOON
S WINDS 10 KT. WAVES 1 FT.
TONIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
THU
SW WINDS 15 TO 20 KT WITH GUSTS TO 25 KT. WAVES 2 FT. A
CHANCE OF SHOWERS AND TSTMS.
THU NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
FRI
W WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
FRI NIGHT
NW WINDS 10 TO 15 KT. WAVES 1 FT.
SAT
NW WINDS 10 TO 15 KT. WAVES 1 FT.
SUN...SW WINDS 5 TO 10 KT
BECOMING S 10 TO 15 KT. WAVES 1 TO
2 FT. A CHANCE OF SHOWERS AFTER MIDNIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
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