156
FZUS51 KLWX 010703
CWFLWX
COASTAL WATERS FORECAST
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
303 AM EDT WED APR 1 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.
ANZ500-012200-
303 AM EDT WED APR 1 2026
.SYNOPSIS FOR THE TIDAL POTOMAC AND MD PORTION OF THE CHESAPEAKE BAY...
A COLD FRONT SLOWLY APPROACHING FROM THE GREAT LAKES AND NORTHEAST
WILL DROP SOUTHWARD INTO THE MID-ATLANTIC TONIGHT AND STALL. THE
FRONT WILL WAVER OVER THE AREA THURSDAY, THEN LIFT BACK NORTHWARD
FRIDAY INTO SATURDAY. A STRONGER FRONT WILL PUSH ACROSS THE AREA
SUNDAY. SMALL CRAFT ADVISORIES MAY BE NEEDED THURSDAY AFTERNOON AND
NIGHT, FRIDAY AFTERNOON AND EVENING, AND SATURDAY AFTERNOON THROUGH
MONDAY MORNING.
ANZ535-012200-
TIDAL POTOMAC FROM KEY BRIDGE TO INDIAN HEAD-
303 AM EDT WED APR 1 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT TODAY
REST OF THE OVERNIGHT
SW WINDS 10 KT WITH GUSTS TO 20 KT. WAVES
1 FT.
TODAY
SW WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SCATTERED SHOWERS AND TSTMS.
TONIGHT
SE WINDS AROUND 5 KT. WAVES 1 FT. SHOWERS AND SCATTERED
TSTMS. PATCHY FOG. VSBY 1 NM OR LESS.
THU
E WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS. PATCHY
FOG.
THU NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
S WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
FRI NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS
AFTER MIDNIGHT.
SUN...SW WINDS 10 TO 15 KT
BECOMING NW. WAVES 1 TO 2 FT. SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ536-012200-
TIDAL POTOMAC FROM INDIAN HEAD TO COBB ISLAND-
303 AM EDT WED APR 1 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT TODAY
REST OF THE OVERNIGHT
SW WINDS 15 KT WITH GUSTS TO 20 KT. WAVES
1 FT.
TODAY
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SCATTERED SHOWERS.
TONIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT. NUMEROUS SHOWERS AND
SCATTERED TSTMS.
THU
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
THU NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
FRI NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
S WINDS 15 TO 20 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS
AFTER MIDNIGHT.
SUN...SW WINDS 15 TO 20 KT
BECOMING NW 10 TO 15 KT. WAVES 1 TO
2 FT. SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ537-012200-
TIDAL POTOMAC FROM COBB ISLAND TO SMITH POINT-
303 AM EDT WED APR 1 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT TODAY
REST OF THE OVERNIGHT
SW WINDS 15 KT WITH GUSTS TO 20 KT. WAVES
2 FT.
TODAY
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
TONIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT. NUMEROUS SHOWERS AND
SCATTERED TSTMS. PATCHY FOG. VSBY 1 NM OR LESS.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS. PATCHY
FOG.
THU NIGHT
SE WINDS 10 KT. WAVES 1 FT.
FRI
S WINDS 10 KT. WAVES 1 FT.
FRI NIGHT
S WINDS 10 KT. WAVES 1 FT.
SAT
S WINDS 15 TO 20 KT. WAVES 1 TO 2 FT.
SUN...SW WINDS 15 TO 20 KT
BECOMING NW. WAVES 2 FT. A CHANCE OF
SHOWERS IN THE MORNING, THEN SHOWERS LIKELY THROUGH THE NIGHT. A
CHANCE OF SHOWERS AFTER MIDNIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ530-012200-
CHESAPEAKE BAY NORTH OF POOLES ISLAND-
303 AM EDT WED APR 1 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT TODAY
REST OF THE OVERNIGHT
SW WINDS 10 KT WITH GUSTS TO 20 KT. WAVES
1 FT.
TODAY
SW WINDS 5 TO 10 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
SCATTERED SHOWERS AND TSTMS.
TONIGHT
E WINDS AROUND 5 KT. WAVES FLAT. SHOWERS AND SCATTERED
TSTMS. PATCHY FOG. VSBY 1 NM OR LESS.
THU
E WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS.
THU NIGHT
E WINDS 10 TO 15 KT. WAVES 1 FT.
FRI
S WINDS 10 TO 15 KT. GUSTS UP TO 20 KT. WAVES 1 FT.
FRI NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
S WINDS 15 TO 20 KT. WAVES 1 FT. A CHANCE OF SHOWERS AFTER
MIDNIGHT.
SUN...SW WINDS 15 TO 20 KT
BECOMING NW 10 TO 15 KT. WAVES 1 TO
2 FT. SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ531-012200-
CHESAPEAKE BAY FROM POOLES ISLAND TO SANDY POINT-
303 AM EDT WED APR 1 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT TODAY
REST OF THE OVERNIGHT
SW WINDS 15 KT WITH GUSTS TO 20 KT. WAVES
2 FT.
TODAY
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT UNTIL LATE
AFTERNOON. WAVES 1 TO 2 FT. SCATTERED SHOWERS AND TSTMS.
TONIGHT
E WINDS 5 KT. WAVES LESS THAN 1 FT. SHOWERS AND SCATTERED
TSTMS. PATCHY FOG. VSBY 1 NM OR LESS.
THU
E WINDS 10 TO 15 KT. WAVES 1 FT. A CHANCE OF SHOWERS. PATCHY
DENSE FOG.
THU NIGHT
E WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
FRI
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
FRI NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO
2 FT.
SAT
S WINDS 15 TO 20 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS
AFTER MIDNIGHT.
SUN...SW WINDS 15 TO 20 KT
BECOMING NW. WAVES 2 TO 3 FT. SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ538-012200-
PATAPSCO RIVER INCLUDING BALTIMORE HARBOR-
303 AM EDT WED APR 1 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT TODAY
REST OF THE OVERNIGHT
SW WINDS 15 KT WITH GUSTS TO 20 KT. WAVES
1 FT.
TODAY
SW WINDS 5 TO 10 KT. GUSTS UP TO 20 KT IN THE MORNING.
WAVES 1 FT. SCATTERED SHOWERS AND TSTMS.
TONIGHT
E WINDS 5 KT. WAVES FLAT. SHOWERS AND SCATTERED TSTMS.
PATCHY FOG. VSBY 1 NM OR LESS.
THU
E WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS. PATCHY
DENSE FOG.
THU NIGHT
E WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
S WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
S WINDS 10 TO 15 KT. WAVES 1 FT OR LESS. A CHANCE OF SHOWERS
AFTER MIDNIGHT.
SUN...SW WINDS 10 TO 15 KT
BECOMING NW. WAVES 1 FT. SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ539-012200-
CHESTER RIVER TO QUEENSTOWN MD-
303 AM EDT WED APR 1 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT TODAY
REST OF THE OVERNIGHT
SW WINDS 15 KT WITH GUSTS TO 20 KT. WAVES
2 FT.
TODAY
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT UNTIL LATE
AFTERNOON. WAVES 1 TO 2 FT. SCATTERED SHOWERS AND TSTMS.
TONIGHT
E WINDS 5 KT. WAVES LESS THAN 1 FT. SHOWERS AND SCATTERED
TSTMS. PATCHY FOG. VSBY 1 NM OR LESS.
THU
E WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS. PATCHY
DENSE FOG.
THU NIGHT
E WINDS 10 TO 15 KT. WAVES 1 FT.
FRI
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
FRI NIGHT
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
SAT
S WINDS 15 TO 20 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS
AFTER MIDNIGHT.
SUN...SW WINDS 15 TO 20 KT
BECOMING NW 10 TO 15 KT. WAVES 2 FT.
SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ532-012200-
CHESAPEAKE BAY FROM SANDY POINT TO NORTH BEACH-
303 AM EDT WED APR 1 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT TODAY
REST OF THE OVERNIGHT
SW WINDS 15 KT WITH GUSTS TO 20 KT. WAVES
3 FT.
TODAY
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT UNTIL LATE
AFTERNOON. WAVES 2 FT. SCATTERED SHOWERS AND TSTMS.
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS AND SCATTERED
TSTMS. PATCHY FOG. VSBY 1 NM OR LESS.
THU
NE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS. PATCHY
DENSE FOG.
THU NIGHT
E WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
FRI
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
FRI NIGHT
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 FT.
SAT...S WINDS 15 TO 20 KT. WAVES 1 TO 2 FT
BUILDING TO 3 FT AFTER
MIDNIGHT. A CHANCE OF SHOWERS AFTER MIDNIGHT.
SUN...SW WINDS 15 TO 20 KT
BECOMING NW. WAVES 2 TO 3 FT. SHOWERS.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ540-012200-
EASTERN BAY-
303 AM EDT WED APR 1 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT TODAY
REST OF THE OVERNIGHT
SW WINDS 15 KT WITH GUSTS TO 20 KT. WAVES
2 FT.
TODAY
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT UNTIL LATE
AFTERNOON. WAVES 1 TO 2 FT. SCATTERED SHOWERS AND TSTMS.
TONIGHT
SE WINDS 5 KT. WAVES LESS THAN 1 FT. SHOWERS AND
SCATTERED TSTMS. PATCHY FOG. VSBY 1 NM OR LESS.
THU
E WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS. PATCHY
DENSE FOG.
THU NIGHT
E WINDS 10 TO 15 KT. WAVES 1 FT.
FRI
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 FT.
FRI NIGHT
S WINDS 10 TO 15 KT. WAVES 1 FT.
SAT
S WINDS 15 TO 20 KT. WAVES 1 TO 2 FT.
SUN...SW WINDS 15 TO 20 KT
BECOMING NW 10 TO 15 KT. WAVES 2 FT. A
CHANCE OF SHOWERS IN THE MORNING, THEN SHOWERS THROUGH THE NIGHT. A
CHANCE OF SHOWERS AFTER MIDNIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ533-012200-
CHESAPEAKE BAY FROM NORTH BEACH TO DRUM POINT-
303 AM EDT WED APR 1 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT TODAY
REST OF THE OVERNIGHT
SW WINDS 15 KT WITH GUSTS TO 20 KT. WAVES
2 FT.
TODAY
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
SCATTERED SHOWERS.
TONIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT. SHOWERS AND SCATTERED
TSTMS. PATCHY FOG. VSBY 1 NM OR LESS.
THU
E WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS. PATCHY
DENSE FOG.
THU NIGHT
E WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
FRI
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
FRI NIGHT
S WINDS 10 TO 15 KT. WAVES 2 FT.
SAT...S WINDS 15 TO 20 KT. WAVES 1 TO 2 FT
BUILDING TO 3 FT AFTER
MIDNIGHT.
SUN...SW WINDS 15 TO 20 KT
BECOMING NW. WAVES 2 TO 3 FT. A CHANCE
OF SHOWERS IN THE MORNING, THEN SHOWERS IN THE AFTERNOON. A CHANCE
OF SHOWERS THROUGH THE NIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ541-012200-
CHOPTANK RIVER TO CAMBRIDGE MD AND THE LITTLE CHOPTANK RIVER-
303 AM EDT WED APR 1 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT TODAY
REST OF THE OVERNIGHT
SW WINDS 15 KT WITH GUSTS TO 20 KT. WAVES
2 FT.
TODAY
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
TONIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT OR LESS. SHOWERS AND
SCATTERED TSTMS. PATCHY FOG. VSBY 1 NM OR LESS.
THU
E WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS. PATCHY
DENSE FOG.
THU NIGHT
E WINDS 10 TO 15 KT. WAVES 1 FT.
FRI
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
FRI NIGHT
S WINDS 10 TO 15 KT. WAVES 1 TO 2 FT.
SAT
S WINDS 15 TO 20 KT. WAVES 1 TO 2 FT.
SUN...SW WINDS 15 TO 20 KT
BECOMING NW. WAVES 2 FT. A CHANCE OF
SHOWERS IN THE MORNING, THEN SHOWERS LIKELY THROUGH THE NIGHT. A
CHANCE OF SHOWERS AFTER MIDNIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ542-012200-
PATUXENT RIVER TO BROOMES ISLAND MD-
303 AM EDT WED APR 1 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT TODAY
REST OF THE OVERNIGHT
SW WINDS 15 KT WITH GUSTS TO 20 KT. WAVES
1 FT.
TODAY
SW WINDS 10 TO 15 KT. GUSTS UP TO 20 KT UNTIL LATE
AFTERNOON. WAVES 1 FT.
TONIGHT
S WINDS 5 KT. WAVES LESS THAN 1 FT. NUMEROUS SHOWERS AND
SCATTERED TSTMS. PATCHY FOG. VSBY 1 NM OR LESS.
THU
SE WINDS 5 TO 10 KT. WAVES 1 FT. A CHANCE OF SHOWERS. PATCHY
DENSE FOG.
THU NIGHT
SE WINDS 5 TO 10 KT. WAVES 1 FT.
FRI
S WINDS 5 TO 10 KT. WAVES 1 FT.
FRI NIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT.
SAT
S WINDS 10 TO 15 KT. WAVES 1 FT.
SUN...SW WINDS 10 TO 15 KT
BECOMING NW 5 TO 10 KT. WAVES 1 FT. A
CHANCE OF SHOWERS IN THE MORNING, THEN SHOWERS LIKELY THROUGH THE
NIGHT. A CHANCE OF SHOWERS AFTER MIDNIGHT.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ534-012200-
CHESAPEAKE BAY FROM DRUM POINT TO SMITH POINT-
303 AM EDT WED APR 1 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT TODAY
REST OF THE OVERNIGHT
SW WINDS 20 KT WITH GUSTS TO 25 KT. WAVES
3 FT.
TODAY
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 2 TO 3 FT.
TONIGHT
S WINDS 10 KT. WAVES 1 TO 2 FT. NUMEROUS SHOWERS AND
SCATTERED TSTMS. PATCHY FOG. VSBY 1 NM OR LESS.
THU
SE WINDS 10 TO 15 KT. WAVES 1 TO 2 FT. A CHANCE OF SHOWERS.
PATCHY DENSE FOG.
THU NIGHT...SE WINDS 10 TO 15 KT
BECOMING S AFTER MIDNIGHT. WAVES
2 FT.
FRI
S WINDS 10 TO 15 KT. WAVES 2 FT.
FRI NIGHT
S WINDS 10 TO 15 KT. WAVES 2 FT.
SAT
S WINDS 15 TO 20 KT. WAVES 2 TO 3 FT.
SUN...SW WINDS 15 TO 20 KT
BECOMING NW AFTER MIDNIGHT. WAVES 2 TO
3 FT. A CHANCE OF SHOWERS IN THE MORNING, THEN SHOWERS LIKELY.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
ANZ543-012200-
TANGIER SOUND AND THE INLAND WATERS SURROUNDING BLOODSWORTH ISLAND-
303 AM EDT WED APR 1 2026
..SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON EDT TODAY
REST OF THE OVERNIGHT
SW WINDS 20 KT WITH GUSTS TO 25 KT. WAVES
2 FT.
TODAY
SW WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
TONIGHT
S WINDS 5 TO 10 KT. WAVES 1 FT. NUMEROUS SHOWERS AND
SCATTERED TSTMS. PATCHY FOG. VSBY 1 NM OR LESS.
THU
S WINDS 5 TO 10 KT. WAVES 1 FT. PATCHY FOG.
THU NIGHT...SE WINDS 10 TO 15 KT
BECOMING S AFTER MIDNIGHT. WAVES
1 FT.
FRI
S WINDS 10 TO 15 KT WITH GUSTS TO 20 KT. WAVES 1 TO 2 FT.
FRI NIGHT
S WINDS 10 TO 15 KT. WAVES 2 FT.
SAT
S WINDS 15 TO 20 KT. WAVES 1 TO 2 FT.
SUN...SW WINDS 15 TO 20 KT
BECOMING NW AFTER MIDNIGHT. WAVES
2 FT. A CHANCE OF SHOWERS IN THE MORNING, THEN SHOWERS LIKELY.
WINDS AND WAVES HIGHER AND VISIBILITIES LOWER IN AND NEAR TSTMS.
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