Alaska marine forecasts

Valdez Arm

PKZ722 · Coastal Waters Forecast, National Weather Service Anchorage Alaska · issued Mon, Sep 28, 3:03 PM AKDT

Tonight: Variable wind less than 10 kt becoming NE 10 kt after midnight. Seas 2 ft.

Valdez Arm on the map

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Now

The nearest stations reporting each, as of Tue, Sep 29, 2:50 AM AKDT.

Wind
NNE 3 kt, gusts 4 kt at BLIA2
Water
52°F at VDZA2

Alerts in force

No marine warning or advisory is in force for this zone.

What is normally issued here: in the past year NWS Anchorage (eastern waters) issued 26 Gale Warnings, 6 Storm Warnings, 5 Freezing Spray Warnings, 54 Small Craft Advisories for this zone.

The forecast

Coastal Waters Forecast from National Weather Service Anchorage Alaska, issued Mon, Sep 28, 3:03 PM AKDT, valid until Tue, Sep 29, 4:15 AM AKDT. Wind in knots, seas in feet.

Tonight
Variable wind less than 10 kt becoming NE 10 kt after midnight. Seas 2 ft.
Tuesday
NE wind 10 kt in the morning becoming variable less than 10 kt. Seas 2 ft.
Tuesday night
Variable wind less than 10 kt becoming NE wind 10 kt after midnight. Seas 2 ft. Widespread rain showers.
Wednesday
NE wind 15 kt. Seas 3 ft.
Wednesday night
NE wind 10 kt. Seas 2 ft.
Thursday
NE wind 10 kt. Seas 2 ft.
Friday through Saturday
NE wind 15 kt. Seas 3 ft.

Synopsis

Synopsis for the north gulf coast, kodiak island waters, cook inlet

A 992 mb low 60 nm S of Middleton Island moves to 70 nm S of Yakutat at 1002 mb by Tue afternoon before dissipating shortly afterwards. Its front moves from the North Gulf to the East Gulf by Tue afternoon before dissipating. A series of smaller disturbances clip the northern Gulf Tue afternoon through Wed afternoon.

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.

StationDistanceWindWavesWaterAirPressureReported
BLIA2 Bligh Reef Light, AK5 nmNNE 3 kt, gusts 449°F998.9 hPaTue, Sep 29, 2:50 AM AKDT
POTA2 Potato Point, AK9 nmNNE 6 kt, gusts 744°F998.5 hPaTue, Sep 29, 2:30 AM AKDT
MRKA2 Middle Rock Light, AK11 nmNNE 4 kt, gusts 544°F998.7 hPaTue, Sep 29, 2:30 AM AKDT
VDZA2 9454240 - Valdez, AK19 nmNE 2 kt, gusts 352°F42°F998.6 hPaTue, Sep 29, 2:30 AM AKDT
VDXA2 Valdez, AK19 nmN 1 kt, gusts 341°FTue, Sep 29, 2:52 AM AKDT
46060 WEST ORCA BAY - 8NM NW of Hinchinbrook Is., AK21 nmS 8 kt, gusts 1053°F50°F998.4 hPaTue, Sep 29, 2:40 AM AKDT

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.

ProductIssuedMost recent
Gale Warning26Wed, Mar 18, 2026, 2:43 PM AKDT
Storm Warning6Fri, Feb 20, 2026, 4:33 AM AKST
Freezing Spray Warning5Tue, Mar 10, 2026, 4:28 PM AKDT
Small Craft Advisory54Sun, Aug 30, 2026, 3:27 PM AKDT

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 buoysThe hour-by-hour forecast for the middle of the zoneEvery Alaska zone

Sources

Coastal Waters Forecast CWFAER from National Weather Service Anchorage Alaska, issued Mon, Sep 28, 3:03 PM AKDT. 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 11:14 UTC. All public domain, from the National Weather Service.