Eastern Bay

ANZ540 · Coastal Waters Forecast, National Weather Service Baltimore MD/Washington DC · issued Sat, Sep 26, 4:57 AM EDT

Gale Warning in force. Rest of the overnight: N winds 25 kt with gusts to 35 kt. Waves 3 ft. A slight chance of rain.

Eastern Bay on the map

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Gale Warning
Small Craft Advisory

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Now

The nearest stations reporting each, as of Sat, Sep 26, 6:00 AM EDT.

Wind: NNW 23 kt, gusts 25 kt at TPLM2
Waves: 1.3 ft at 4 s at 44063
Water: 69°F at 44063

Alerts in force

Gale Warning from Sat, Sep 26, 2:35 AM EDT until Sat, Sep 26, 10:00 PM EDT

Gale Warning issued September 26 at 2:35AM EDT until September 26 at 10:00PM EDT by NWS Baltimore MD/Washington DC

The full text

* WHAT...North winds 20 to 30 kt with gusts up to 35 kt and
waves 2 to 4 ft.

* WHERE...Chesapeake Bay from Pooles Island MD to North Beach
MD, Chester River to Queenstown MD, Eastern Bay, and Choptank
River to Cambridge MD and the Little Choptank River.

* WHEN...Until 10 PM EDT this evening.

* IMPACTS...Strong winds will cause hazardous waves which could
capsize or damage vessels.

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for hazardous conditions.

The forecast

Coastal Waters Forecast from National Weather Service Baltimore MD/Washington DC, issued Sat, Sep 26, 4:57 AM EDT, valid until Sat, Sep 26, 7:00 PM EDT. Wind in knots, seas in feet.

GALE WARNING IN EFFECT THROUGH THIS EVENING

Rest of the overnight: N winds 25 kt with gusts to 35 kt. Waves 3 ft. A slight chance of rain.
Today: N winds 25 to 30 kt. Waves 3 ft. Rain.
Tonight: N winds 20 to 25 kt. Gusts up to 35 kt in the evening. Waves 3 ft. Rain likely.
Sunday: NW winds 20 to 25 kt with gusts to 30 kt. Waves 3 ft. Rain.
Sunday night: NW winds 15 to 20 kt with gusts to 25 kt. Waves 2 to 3 ft. A chance of rain.
Monday: NW winds 10 to 15 kt. Waves 1 ft.
Monday night: NW winds 5 kt. Waves less than 1 ft.
Tuesday: W winds around 5 kt. Waves flat.
Wednesday: S winds around 5 kt. Waves 1 ft or less.

Synopsis

Synopsis for the tidal potomac and md portion of the chesapeake bay

A strong Nor'easter will meander off the Mid Atlantic coast through Sunday before finally departing to the northeast Monday. High pressure will build into the area for the middle of next week. Small Craft Advisories and potentially gale conditions will continue through Sunday. Advisories may be needed through Monday.

Buoys and stations nearby

The latest report from each station within reach of the zone, nearest first. Distances in nautical miles from the middle of the zone.

Station	Distance	Wind	Waves	Water	Air	Pressure	Reported
TPLM2 Thomas Point, MD	8 nm	NNW 23 kt, gusts 25			65°F	1010.3 hPa	Sat, Sep 26, 6:00 AM EDT
44063 Annapolis, MD	10 nm	NNW 19 kt, gusts 29	1.3 ft at 4 s	69°F	62°F		Sat, Sep 26, 5:48 AM EDT
APAM2 8575512 - Annapolis, MD	12 nm	NW 15 kt, gusts 19		70°F		1010.6 hPa	Sat, Sep 26, 5:42 AM EDT
CXLM2 Cooperative Oxford Laboratory	12 nm	NNE 14 kt, gusts 24					Sat, Sep 26, 5:30 AM EDT
44062 Gooses Reef, MD	20 nm	N 33 kt, gusts 43	3.3 ft at 5 s	71°F	64°F		Sat, Sep 26, 5:48 AM EDT
CAMM2 8571892 - Cambridge, MD	20 nm	NNE 17 kt, gusts 25		67°F	65°F	1009.0 hPa	Sat, Sep 26, 5:42 AM EDT

The past year

Warnings, watches and advisories the National Weather Service issued for this zone over the past 12 months, from the Iowa Environmental Mesonet’s archive.

Product	Issued	Most recent
Special Marine Warning	51	Thu, Sep 3, 2026, 11:58 PM EDT
Gale Warning	21	Fri, Sep 25, 2026, 6:00 PM EDT
Storm Warning	1	Sat, Feb 7, 2026, 6:00 AM EST
Severe Thunderstorm Watch	18	Thu, Sep 3, 2026, 8:38 PM EDT
Gale Watch	15	Mon, Mar 16, 2026, 1:00 PM EDT
Tornado Watch	4	Thu, Aug 20, 2026, 3:01 PM EDT
Small Craft Advisory	150	Mon, Sep 21, 2026, 6:00 PM EDT
Dense Fog Advisory	7	Tue, Mar 10, 2026, 4:14 AM EDT
Low Water Advisory	4	Sat, Feb 7, 2026, 7:00 PM EST
Freezing Spray Advisory	3	Sun, Feb 1, 2026, 1:00 AM EST

What this means

Marine forecasts give wind in knots (1 knot is 1.15 mph) and seas in feet, except the high seas forecasts, which give seas in meters. Seas are the significant wave height, the average of the highest third of the waves; individual waves may be more than twice that. On the Great Lakes the forecast gives waves, not seas. "Wave Detail" splits the seas into the wind waves and each swell, with its direction and period.

Each coastal office writes a Coastal Waters Forecast for the bays, sounds and ocean out to 20 to 60 nautical miles, or on the Great Lakes a Nearshore Marine Forecast within 5 nautical miles of shore; the Open Lakes Forecast covers the rest of each lake. The Ocean Prediction Center and the National Hurricane Center write the Offshore Waters Forecasts out to about 250 nautical miles, and the High Seas Forecasts beyond. Forecasts are issued at least twice a day and updated when they go wrong.

Small Craft Advisory: Winds or conditions hazardous to small boats. The thresholds are set by each NWS region: typically sustained winds or frequent gusts of 20 to 25 knots up to 33 knots, and seas of 5 to 7 feet or more.
Gale Warning: Sustained winds or frequent gusts of 34 to 47 knots, not from a tropical cyclone.
Storm Warning: Sustained winds or frequent gusts of 48 to 63 knots, not from a tropical cyclone.
Hurricane Force Wind Warning: Sustained winds or frequent gusts of 64 knots or more, not from a tropical cyclone.
Special Marine Warning: A thunderstorm or squall over the water with winds or gusts of 34 knots or more, hail of 3/4 inch or more, or a waterspout, for up to two hours.
Hazardous Seas Warning: Wave heights or steepness at or above the office’s warning threshold, when the wind alone does not warrant a warning.
Heavy Freezing Spray Warning: Spray freezing on a vessel at 2 cm (3/4 inch) an hour or more.
Tropical Storm and Hurricane Warnings: Tropical storm (34 to 63 knots) or hurricane (64 knots or more) conditions expected within 36 hours. Watches: possible within 48 hours.

Nearby

Open the live map with marine zones and buoys The hour-by-hour forecast for the middle of the zone Every Atlantic Coast zone

Sources

Coastal Waters Forecast CWFLWX from National Weather Service Baltimore MD/Washington DC, issued Sat, Sep 26, 4:57 AM EDT. Original at NWS. Buoy reports from the National Data Buoy Center. Past products from the Iowa Environmental Mesonet. Zone outlines from the NWS marine and offshore zone boundaries. Warnings and advisories from the NWS API, read 10:24 UTC. All public domain, from the National Weather Service.