Unimak Pass
Tonight: SW wind 20 kt. Seas 6 ft.
Unimak Pass on the map
The zone and the zones around it, tinted where a marine warning or advisory is in force. Tap a neighboring zone to open its forecast.
- Small Craft Advisory
Now
The nearest stations reporting each, as of Tue, Sep 29, 9:12 PM AKDT.
- Wind
- WSW 9 kt, gusts 14 kt at AKXA2
- Water
- 48°F at UNLA2
Alerts in force
No marine warning or advisory is in force for this zone.
The forecast
Coastal Waters Forecast from National Weather Service Anchorage Alaska, issued Tue, Sep 29, 2:30 PM AKDT, valid until Wed, Sep 30, 3:00 AM AKDT. Wind in knots, seas in feet.
- Tonight
- SW wind 20 kt. Seas 6 ft.
- Wednesday
- W wind 15 kt. Seas 5 ft. Widespread rain showers.
- Wednesday night
- E wind 20 kt. Seas 3 ft. Rain.
- Thursday
- E wind 35 kt. Seas 9 ft.
- Thursday night
- NE wind 40 kt. Seas 12 ft.
- Friday
- NE wind 35 kt. Seas 12 ft.
- Saturday
- S wind 15 kt. Seas 7 ft.
- Sunday
- SW wind 20 kt. Seas 9 ft.
Synopsis
Synopsis for southwest alaska, bristol bay, the alaska peninsula waters and the aleutian islands
A 1009 mb low 90 nm N of St. Paul moves to 110 nm NW of Nelson Lagoon at 1010 mb Wed morning. This low moves across the Alaska Peninsula through Wed afternoon and dissipates Wed evening. A 992 mb Kamchatka low moves to 290 nm W of Attu at 991 mb Wed morning. This low then moves to 90 nm S of Nikolski at 992 mb Thu afternoon. Its front moves across the Aleutian Chain through Thu 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.
| Station | Distance | Wind | Waves | Water | Air | Pressure | Reported |
|---|---|---|---|---|---|---|---|
| AKXA2 Akutan, AK | 14 nm | WSW 9 kt, gusts 14 | 48°F | 1014.4 hPa | Tue, Sep 29, 9:12 PM AKDT | ||
| DPLA2 Dutch Harbor APL, AK | 43 nm | SSW 13 kt, gusts 19 | 46°F | Tue, Sep 29, 9:12 PM AKDT | |||
| DPXA2 Dutch Harbor Pilot Station, AK | 43 nm | S 11 kt, gusts 19 | 46°F | 1014.5 hPa | Tue, Sep 29, 9:12 PM AKDT | ||
| UNLA2 9462620 - Unalaska, AK | 43 nm | SW 12 kt, gusts 16 | 48°F | 1015.9 hPa | Tue, Sep 29, 8:48 PM AKDT | ||
| CPXA2 Captains Bay | 46 nm | S 9 kt, gusts 16 | 46°F | 1015.3 hPa | Tue, Sep 29, 9:12 PM 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.
The archive of past products did not answer just now.
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
- Cape Tolstoi to Cape Sarichef out to 15 NM
- Cape Tolstoi to Unalga Pass from 15 to 100 NM
- Nelson Lagoon to Cape Sarichef out to 15 NM
- Nelson Lagoon to Unalga Pass from 15 to 70 NM
- Unalga Pass to Nikolski Bering Side out to 15 NM
- Unalga Pass to Nikolski Pacific Side out to 15 NM
- Unalaska Bay
- Unalga Pass to Nikolski Bering Side from 15 to 85 NM
- Unalga Pass to Nikolski Pacific Side from 15 to 85 NM
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 CWFALU from National Weather Service Anchorage Alaska, issued Tue, Sep 29, 2:30 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 05:33 UTC. All public domain, from the National Weather Service.