681
FZUS51 KLWX 161905
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
304 PM EDT THU JUL 16 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.
ANZ500-170800-
304 PM EDT THU JUL 16 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
A WEAK COLD FRONT WILL DROP SOUTH OF THE WATERS TONIGHT, THEN RETURN
NORTHWARD AS A WARM FRONT FRIDAY NIGHT INTO SATURDAY. A STRONGER
COLD FRONT WILL DROP THROUGH THE REGION SATURDAY NIGHT INTO SUNDAY.
SMALL CRAFT ADVISORIES MAY BE NEEDED FRIDAY NIGHT INTO SATURDAY.
ANZ535-170800-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
304 PM EDT THU JUL 16 2026
REST OF THIS AFTERNOON
SW WINDS 10 KT. WAVES 1 FT.
TONIGHT...W WINDS 5 TO 10 KT
BECOMING N AFTER MIDNIGHT. WAVES
1 FT. SMOKE.
FRI
N WINDS AROUND 5 KT. WAVES 1 FT. SMOKE.
FRI NIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS
AND TSTMS. SMOKE.
SAT
S WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT. SHOWERS
WITH A CHANCE OF TSTMS. SMOKE.
SAT NIGHT
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE EVENING.
WAVES 1 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
SUN...NW WINDS 5 TO 10 KT
BECOMING NE. WAVES 1 FT. A CHANCE OF
SHOWERS IN THE MORNING, THEN A CHANCE OF SHOWERS AND TSTMS THROUGH
THE NIGHT.
MON...E WINDS 5 KT
BECOMING S. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ536-170800-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
304 PM EDT THU JUL 16 2026
REST OF THIS AFTERNOON
S WINDS 10 KT. WAVES 1 FT.
TONIGHT...SW WINDS 5 KT
BECOMING N AFTER MIDNIGHT. WAVES 1 FT.
SMOKE.
FRI...NE WINDS 5 TO 10 KT
BECOMING SE LATE. WAVES 1 FT. SMOKE.
FRI NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. SMOKE.
SAT...S WINDS 5 KT
BECOMING SW 10 TO 15 KT WITH GUSTS TO 20 KT IN
THE AFTERNOON. WAVES 1 FT. SHOWERS WITH A CHANCE OF TSTMS. AREAS OF
SMOKE.
SAT NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS.
SUN
N WINDS AROUND 5 KT. WAVES 1 FT. A CHANCE OF SHOWERS IN THE
MORNING, THEN A CHANCE OF SHOWERS AND TSTMS THROUGH THE NIGHT.
MON...E WINDS AROUND 5 KT
BECOMING S. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ537-170800-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
304 PM EDT THU JUL 16 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THIS AFTERNOON
S WINDS 10 KT. WAVES FLAT.
TONIGHT...S WINDS 5 TO 10 KT
BECOMING N 10 TO 15 KT AFTER
MIDNIGHT. GUSTS UP TO 20 KT. WAVES 1 FT. SMOKE.
FRI
NE WINDS 5 TO 10 KT. WAVES 1 FT. SMOKE.
FRI NIGHT
SE WINDS 10 TO 15 KT. WAVES 1 FT. SMOKE.
SAT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
SHOWERS LIKELY WITH A CHANCE OF TSTMS. PATCHY SMOKE.
SAT NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
SUN...NW WINDS 5 TO 10 KT
BECOMING NE. WAVES 1 FT. A CHANCE OF
SHOWERS IN THE MORNING, THEN SHOWERS LIKELY WITH A CHANCE OF TSTMS
THROUGH THE NIGHT. A CHANCE OF SHOWERS AFTER MIDNIGHT.
MON...E WINDS 5 TO 10 KT
BECOMING S AFTER MIDNIGHT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ530-170800-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
304 PM EDT THU JUL 16 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THIS AFTERNOON
SW WINDS 15 KT. WAVES 1 FT. ISOLATED
SHOWERS AND TSTMS.
TONIGHT...W WINDS 10 TO 15 KT
BECOMING N IN THE LATE EVENING AND
OVERNIGHT. GUSTS UP TO 20 KT. WAVES 1 FT. SMOKE.
FRI...N WINDS 5 TO 10 KT
BECOMING S LATE. WAVES FLAT. SMOKE.
FRI NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF
SHOWERS. SMOKE.
SAT
S WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS WITH A CHANCE OF
TSTMS. AREAS OF SMOKE.
SAT NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS WITH A CHANCE
OF TSTMS.
SUN
N WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS IN THE
MORNING.
MON...E WINDS AROUND 5 KT
BECOMING SE. WAVES 1 FT OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ531-170800-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
304 PM EDT THU JUL 16 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THIS AFTERNOON
S WINDS 15 KT. WAVES 1 FT. ISOLATED
SHOWERS AND TSTMS.
TONIGHT...SW WINDS 10 TO 15 KT
BECOMING N IN THE LATE EVENING AND
OVERNIGHT. GUSTS UP TO 20 KT. WAVES 1 FT. SMOKE.
FRI
NE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. SMOKE.
FRI NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. A CHANCE OF
SHOWERS AND TSTMS. SMOKE.
SAT
S WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT. SHOWERS WITH A
CHANCE OF TSTMS. SMOKE.
SAT NIGHT
SW WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT. SHOWERS
WITH A CHANCE OF TSTMS.
SUN...N WINDS 5 TO 10 KT
BECOMING NE AFTER MIDNIGHT. WAVES 1 FT.
A CHANCE OF SHOWERS IN THE MORNING.
MON...E WINDS 5 TO 10 KT
BECOMING S. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ538-170800-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
304 PM EDT THU JUL 16 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THIS AFTERNOON
W WINDS 10 KT. WAVES 1 FT. ISOLATED
SHOWERS AND TSTMS.
TONIGHT...NW WINDS 5 TO 10 KT
BECOMING N AFTER MIDNIGHT. GUSTS UP
TO 20 KT. WAVES 1 FT OR LESS. SCATTERED SHOWERS AND TSTMS. SMOKE.
FRI
E WINDS 5 KT. WAVES FLAT. SMOKE.
FRI NIGHT
S WINDS 5 KT. WAVES FLAT. A CHANCE OF SHOWERS AND
TSTMS. SMOKE.
SAT
S WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS WITH A CHANCE OF
TSTMS. SMOKE.
SAT NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS LIKELY WITH A
CHANCE OF TSTMS.
SUN...N WINDS 5 TO 10 KT
BECOMING NE AFTER MIDNIGHT. WAVES 1 FT.
A CHANCE OF SHOWERS IN THE MORNING.
MON...E WINDS 5 KT
BECOMING S. WAVES 1 FT OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ539-170800-
CHESTER RIVER TO QUEENSTOWN MD-
304 PM EDT THU JUL 16 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THIS AFTERNOON
SW WINDS 10 KT. WAVES 1 FT.
TONIGHT...W WINDS 5 TO 10 KT
BECOMING N AFTER MIDNIGHT. GUSTS UP
TO 20 KT. WAVES 1 FT. SMOKE.
FRI
N WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. SMOKE.
FRI NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. SMOKE.
SAT
S WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS WITH A CHANCE OF
TSTMS. SMOKE.
SAT NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS WITH A CHANCE
OF TSTMS.
SUN...NW WINDS 5 TO 10 KT
BECOMING NE. WAVES 1 FT. A CHANCE OF
SHOWERS IN THE MORNING.
MON...E WINDS 5 TO 10 KT
BECOMING S. WAVES 1 FT OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ532-170800-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
304 PM EDT THU JUL 16 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THIS AFTERNOON
S WINDS 15 KT. WAVES 1 FT. ISOLATED
SHOWERS AND TSTMS.
TONIGHT...SW WINDS 10 TO 15 KT
BECOMING W 5 TO 10 KT LATE IN THE
EVENING, THEN BECOMING NE 10 TO 15 KT AFTER MIDNIGHT. GUSTS UP TO
20 KT. WAVES 1 FT. SMOKE.
FRI
NE WINDS 5 TO 10 KT. WAVES 1 FT. SMOKE.
FRI NIGHT
S WINDS 10 TO 15 KT. WAVES 1 FT. SMOKE.
SAT
S WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT. SHOWERS
WITH A CHANCE OF TSTMS. AREAS OF SMOKE.
SAT NIGHT
SW WINDS 10 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
SHOWERS WITH A CHANCE OF TSTMS.
SUN...NW WINDS 5 TO 10 KT
BECOMING NE. WAVES 1 FT. A CHANCE OF
SHOWERS IN THE MORNING.
MON...E WINDS 5 TO 10 KT
BECOMING S. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ540-170800-
EASTERN BAY-
304 PM EDT THU JUL 16 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THIS AFTERNOON
SW WINDS 15 KT. WAVES 1 FT. ISOLATED
SHOWERS AND TSTMS.
TONIGHT...SW WINDS 10 TO 15 KT
BECOMING NW IN THE LATE EVENING
AND EARLY MORNING, THEN BECOMING NE LATE. GUSTS UP TO 20 KT. WAVES
1 FT. SMOKE.
FRI
N WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. SMOKE.
FRI NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. SMOKE.
SAT
S WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT. SHOWERS
WITH A CHANCE OF TSTMS. AREAS OF SMOKE.
SAT NIGHT
SW WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS WITH A CHANCE
OF TSTMS.
SUN...NW WINDS 5 TO 10 KT
BECOMING NE. WAVES 1 FT. A CHANCE OF
SHOWERS IN THE MORNING.
MON...E WINDS 5 TO 10 KT
BECOMING S. WAVES 1 FT OR LESS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ533-170800-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
304 PM EDT THU JUL 16 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THIS AFTERNOON
S WINDS 15 KT. WAVES 1 FT.
TONIGHT...SW WINDS 10 TO 15 KT
BECOMING N AFTER MIDNIGHT. GUSTS
UP TO 20 KT. WAVES 1 FT. SMOKE.
FRI
N WINDS 5 TO 10 KT. WAVES 1 FT. SMOKE.
FRI NIGHT
S WINDS 10 TO 15 KT. WAVES 1 FT. SMOKE.
SAT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
SHOWERS WITH A CHANCE OF TSTMS. AREAS OF SMOKE.
SAT NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT. SHOWERS WITH A CHANCE OF TSTMS.
SUN...NW WINDS 5 TO 10 KT
BECOMING NE. WAVES 1 FT. A CHANCE OF
SHOWERS IN THE MORNING, THEN A CHANCE OF SHOWERS AND TSTMS THROUGH
THE NIGHT.
MON...E WINDS 5 TO 10 KT
BECOMING S. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ541-170800-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
304 PM EDT THU JUL 16 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THIS AFTERNOON
SW WINDS 15 KT. WAVES 1 FT.
TONIGHT...S WINDS 10 TO 15 KT
BECOMING W 5 TO 10 KT LATE IN THE
EVENING, THEN BECOMING N 10 TO 15 KT AFTER MIDNIGHT. GUSTS UP TO
20 KT. WAVES 1 FT. SMOKE.
FRI
N WINDS 5 TO 10 KT. WAVES 1 FT. SMOKE.
FRI NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. SMOKE.
SAT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT. SHOWERS
WITH A CHANCE OF TSTMS. AREAS OF SMOKE.
SAT NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SHOWERS WITH A CHANCE OF TSTMS.
SUN...NW WINDS 5 TO 10 KT
BECOMING NE. WAVES 1 FT. A CHANCE OF
SHOWERS IN THE MORNING.
MON...E WINDS 5 TO 10 KT
BECOMING S. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ542-170800-
PATUXENT RIVER TO BROOMES ISLAND MD-
304 PM EDT THU JUL 16 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THIS AFTERNOON
SW WINDS 10 KT. WAVES 1 FT.
TONIGHT...SW WINDS 5 TO 10 KT
BECOMING N AFTER MIDNIGHT. GUSTS UP
TO 20 KT. WAVES 1 FT. SMOKE.
FRI
NE WINDS 5 TO 10 KT. WAVES 1 FT. SMOKE.
FRI NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. SMOKE.
SAT
S WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT. SHOWERS
LIKELY WITH A CHANCE OF TSTMS. AREAS OF SMOKE.
SAT NIGHT
SW WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SHOWERS LIKELY WITH A CHANCE OF TSTMS.
SUN...NW WINDS 5 TO 10 KT
BECOMING NE. WAVES 1 FT. A CHANCE OF
SHOWERS IN THE MORNING, THEN A CHANCE OF SHOWERS AND TSTMS THROUGH
THE NIGHT.
MON
SE WINDS 5 KT. WAVES LESS THAN 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ534-170800-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
304 PM EDT THU JUL 16 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THIS AFTERNOON
S WINDS 15 KT. WAVES 1 FT.
TONIGHT...S WINDS 10 TO 15 KT
BECOMING N AFTER MIDNIGHT. GUSTS UP
TO 20 KT. WAVES 1 FT. SMOKE.
FRI...NE WINDS 10 TO 15 KT
BECOMING N 5 KT IN THE AFTERNOON.
WAVES 1 FT. SMOKE.
FRI NIGHT
SE WINDS 10 TO 15 KT. WAVES 1 FT. SMOKE.
SAT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 TO 3 FT.
SHOWERS LIKELY WITH A CHANCE OF TSTMS.
SAT NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 TO
3 FT. SHOWERS LIKELY WITH A CHANCE OF TSTMS.
SUN...W WINDS 10 TO 15 KT
BECOMING N 5 TO 10 KT. WAVES 1 TO 2 FT.
A CHANCE OF SHOWERS.
MON...SE WINDS 5 TO 10 KT
BECOMING S AFTER MIDNIGHT. WAVES 1 TO
2 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ543-170800-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
304 PM EDT THU JUL 16 2026
..SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE TONIGHT
REST OF THIS AFTERNOON
SW WINDS 10 KT. WAVES 1 FT.
TONIGHT...S WINDS 10 TO 15 KT
BECOMING W 5 TO 10 KT AFTER
MIDNIGHT, THEN BECOMING N 10 TO 15 KT LATE. GUSTS UP TO 20 KT. WAVES
1 FT. SMOKE.
FRI...N WINDS 5 TO 10 KT
BECOMING W LATE. WAVES 1 FT. SMOKE.
FRI NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. SMOKE.
SAT
S WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 1 TO 2 FT. A
CHANCE OF SHOWERS AND TSTMS.
SAT NIGHT
SW WINDS 10 TO 15 KT WITH GUSTS TO 25 KT. WAVES 2 FT.
SHOWERS LIKELY WITH A CHANCE OF TSTMS.
SUN...W WINDS 10 TO 15 KT
BECOMING NE 5 TO 10 KT AFTER MIDNIGHT.
WAVES 1 TO 2 FT. A CHANCE OF SHOWERS.
MON...SE WINDS 5 TO 10 KT
BECOMING S AFTER MIDNIGHT. WAVES 1 FT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
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