(1/7)
Latest Coastal Waters Forecast by KLWX
Issued 5/12/2026 5:15 AM America/New_York.
Valid through 5/12/2026 5:00 PM America/New_York.
fzus51 klwx 120915
cwflwx
expires:202605122100;;428660
coastal waters forecast
national weather service baltimore md/washington dc
515 am edt tue may 12 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.
anz531-122100-
chesapeake bay from pooles island to sandy point-
515 am edt tue may 12 2026
...small craft advisory in effect from this evening through
wednesday afternoon...
.today...n winds 10 kt...becoming se late. waves 1 ft.
.tonight...s winds 15 to 20 kt with gusts to 25 kt. waves 1 ft...
building to 3 ft after midnight.
.wed...s winds 15 to 20 kt with gusts to 25 kt. waves 3 ft. a chance
of showers.
.wed night...s winds 15 to 20 kt with gusts to 25 kt...becoming sw
10 to 15 kt after midnight. waves 2 to 3 ft. showers with a chance
of tstms.
.thu...nw winds 10 to 15 kt with gusts to 20 kt. waves 1 to 2 ft.
.thu night...nw winds 10 to 15 kt with gusts to 20 kt. waves 2 ft.
.fri...nw winds 10 to 15 kt...becoming w around 5 kt after midnight.
waves 1 to 2 ft...subsiding to flat after midnight.
.sat...sw winds 5 to 10 kt. waves 1 ft.
winds and waves higher and visibilities lower in and near tstms.
$$
(2/7)
Latest Coastal Waters Forecast by KLWX
Issued 5/12/2026 5:15 AM America/New_York.
Valid through 5/12/2026 5:00 PM America/New_York.
fzus51 klwx 120915
cwflwx
expires:202605122100;;428663
coastal waters forecast
national weather service baltimore md/washington dc
515 am edt tue may 12 2026
tidal potomac river and maryland portion of chesapeake bay.
forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow. waves flat where waters are iced over.
anz532-122100-
chesapeake bay from sandy point to north beach-
515 am edt tue may 12 2026
...small craft advisory in effect from this evening through
wednesday afternoon...
.today...ne winds 10 to 15 kt...becoming e 5 kt this afternoon.
waves 1 ft.
.tonight...s winds 15 to 20 kt with gusts to 25 kt. waves 2 to 3 ft.
.wed...s winds 15 to 20 kt with gusts to 25 kt. waves 3 ft. a chance
of showers.
.wed night...s winds 15 to 20 kt with gusts to 25 kt...becoming sw
10 to 15 kt after midnight. waves 2 to 3 ft. showers with a chance
of tstms.
.thu...nw winds 10 to 15 kt with gusts to 20 kt. waves 1 to 2 ft.
.thu night...nw winds 10 to 15 kt with gusts to 20 kt. waves 2 ft.
.fri...nw winds 10 to 15 kt...becoming w 5 kt. waves 1 to 2 ft...
subsiding to flat after midnight.
.sat...sw winds 5 to 10 kt. waves 1 ft.
winds and waves higher and visibilities lower in and near tstms.
$$
(3/7)
Latest Coastal Waters Forecast by KLWX
Issued 5/12/2026 5:15 AM America/New_York.
Valid through 5/12/2026 5:00 PM America/New_York.
fzus51 klwx 120915
cwflwx
expires:202605122100;;428665
coastal waters forecast
national weather service baltimore md/washington dc
515 am edt tue may 12 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.
anz533-122100-
chesapeake bay from north beach to drum point-
515 am edt tue may 12 2026
...small craft advisory in effect from this evening through
wednesday afternoon...
.today...n winds 5 to 10 kt...becoming se late. waves 1 ft.
.tonight...s winds 15 to 20 kt. waves 2 to 3 ft.
.wed...s winds 15 to 20 kt with gusts to 25 kt. waves 3 ft.
.wed night...s winds 15 to 20 kt...becoming sw 10 to 15 kt after
midnight. gusts up to 25 kt. waves 2 to 3 ft. showers with a chance
of tstms.
.thu...nw winds 10 to 15 kt with gusts to 20 kt. waves 2 ft.
.thu night...nw winds 10 to 15 kt with gusts to 20 kt. waves 2 ft.
.fri...nw winds 15 to 20 kt...becoming w around 5 kt. waves 1 to
2 ft...subsiding to flat after midnight.
.sat...sw winds 5 to 10 kt. waves 1 ft or less.
winds and waves higher and visibilities lower in and near tstms.
$$
(4/7)
Latest Coastal Waters Forecast by KLWX
Issued 5/12/2026 5:15 AM America/New_York.
Valid through 5/12/2026 5:00 PM America/New_York.
fzus51 klwx 120915
cwflwx
expires:202605122100;;428668
coastal waters forecast
national weather service baltimore md/washington dc
515 am edt tue may 12 2026
tidal potomac river and maryland portion of chesapeake bay.
forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow. waves flat where waters are iced over.
anz534-122100-
chesapeake bay from drum point to smith point-
515 am edt tue may 12 2026
...small craft advisory in effect from this evening through
wednesday afternoon...
.today...n winds 5 to 10 kt...becoming se late. waves 1 ft or less.
.tonight...s winds 15 to 20 kt. waves 2 to 3 ft.
.wed...s winds 15 to 20 kt. gusts up to 25 kt... increasing to 30 kt
late. waves 3 ft.
.wed night...s winds 20 to 25 kt with gusts to 30 kt...becoming sw
10 to 15 kt with gusts to 20 kt after midnight. waves 3 ft. showers.
.thu...nw winds 10 to 15 kt. waves 2 ft.
.thu night...nw winds 15 to 20 kt. waves 2 to 3 ft.
.fri...nw winds 15 to 20 kt...becoming w 5 kt. waves 2 to 3 ft...
subsiding to 1 ft.
.sat...sw winds 5 to 10 kt. waves 1 ft.
$$
(5/7)
Latest Coastal Waters Forecast by KLWX
Issued 5/12/2026 5:15 AM America/New_York.
Valid through 5/12/2026 5:00 PM America/New_York.
fzus51 klwx 120915
cwflwx
expires:202605122100;;428656
coastal waters forecast
national weather service baltimore md/washington dc
515 am edt tue may 12 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.
anz535-122100-
tidal potomac from key bridge to indian head-
515 am edt tue may 12 2026
...small craft advisory in effect from late tonight through
wednesday afternoon...
.today...nw winds 5 kt. waves less than 1 ft.
.tonight...s winds 10 to 15 kt with gusts to 20 kt. waves 1 ft.
.wed...s winds 10 to 15 kt with gusts to 25 kt. waves 1 to 2 ft. a
chance of showers.
.wed night...sw winds 5 to 10 kt. gusts up to 20 kt in the evening.
waves 1 ft. showers with a chance of tstms.
.thu...nw winds 10 to 15 kt with gusts to 25 kt. waves 1 ft.
.thu night...nw winds 5 to 10 kt with gusts to 20 kt. waves 1 ft.
.fri...nw winds 10 to 15 kt...becoming w around 5 kt after midnight.
waves 1 ft or less.
.sat...sw winds 5 to 10 kt. waves 1 ft.
winds and waves higher and visibilities lower in and near tstms.
$$
(6/7)
Latest Coastal Waters Forecast by KLWX
Issued 5/12/2026 5:15 AM America/New_York.
Valid through 5/12/2026 5:00 PM America/New_York.
fzus51 klwx 120915
cwflwx
expires:202605122100;;428657
coastal waters forecast
national weather service baltimore md/washington dc
515 am edt tue may 12 2026
tidal potomac river and maryland portion of chesapeake bay.
forecasts of wave heights do not include effects of wind direction
relative to tidal currents. expect higher waves when winds are
blowing against the tidal flow. waves flat where waters are iced over.
anz536-122100-
tidal potomac from indian head to cobb island-
515 am edt tue may 12 2026
...small craft advisory in effect from late tonight through
wednesday afternoon...
.today...e winds 5 kt. waves less than 1 ft.
.tonight...s winds 10 to 15 kt with gusts to 20 kt. waves 1 ft.
.wed...s winds 10 to 15 kt with gusts to 25 kt. waves 2 ft. a chance
of showers.
.wed night...sw winds 5 to 10 kt. waves 1 ft. showers with a chance
of tstms.
.thu...nw winds 10 to 15 kt with gusts to 20 kt. waves 1 ft.
.thu night...nw winds 10 to 15 kt with gusts to 20 kt. waves 1 ft.
.fri...nw winds 10 to 15 kt...becoming sw around 5 kt after
midnight. waves 1 ft or less.
.sat...sw winds 5 to 10 kt. waves 1 ft.
winds and waves higher and visibilities lower in and near tstms.
$$
(7/7)
Latest Coastal Waters Forecast by KLWX
Issued 5/12/2026 5:15 AM America/New_York.
Valid through 5/12/2026 5:00 PM America/New_York.
fzus51 klwx 120915
cwflwx
expires:202605122100;;428658
coastal waters forecast
national weather service baltimore md/washington dc
515 am edt tue may 12 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.
anz537-122100-
tidal potomac from cobb island to smith point-
515 am edt tue may 12 2026
...small craft advisory in effect from late tonight through
wednesday afternoon...
.today...n winds 5 to 10 kt...becoming e this afternoon. waves 1 ft.
.tonight...s winds 10 to 15 kt. gusts up to 20 kt. waves 1 to 2 ft.
.wed...s winds 15 kt with gusts to 25 kt. waves 2 to 3 ft.
.wed night...s winds 10 to 15 kt with gusts to 25 kt...becoming sw
5 to 10 kt after midnight. waves 2 to 3 ft. showers.
.thu...nw winds 10 to 15 kt. waves 1 to 2 ft.
.thu night...nw winds 10 to 15 kt. waves 2 ft.
.fri...nw winds 10 to 15 kt...becoming sw around 5 kt. waves 1 to
2 ft...subsiding to flat after midnight.
.sat...sw winds 5 to 10 kt. waves 1 ft or less.
$$
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