Marine forecast
Southwest Prince William Sound, AK
- current wind
- 10 kt N
- Gusts
- 12 kt
- Air
- 40°F
- Water
- 47°F
- 72-hr peak
- 20 kt
Observed Tue 11:10 AM | PKZ726
- Gusts now
- 12 kt
- Air
- 40°F
- Water
- 47°F
- 72-hr peak
- 20 kt
- Peak seas
- 4 ft
In brief
At 11:10 am AKDT on Oct 13, 2026, NDBC station 46081 (Western Prince William Sound, 38 miles away) measured wind from the N at 10 kt, gusting to 12 kt. The NWS forecast for Southwest Prince William Sound, AK issued at 2:42 am AKDT on Oct 13, 2026 reads, for today: “N wind 15 kt becoming NE 10 kt in the afternoon. Seas 3 ft.”
Source: National Weather Service Anchorage Alaska forecast; NDBC observations
Wind forecast · ktPeak 20 kt
Seas forecast · ftPeak 4 ft
NWS marine forecast
| Period | Forecast |
|---|---|
| Today | N wind 15 kt becoming NE 10 kt in the afternoon. Seas 3 ft. |
| Tonight | N wind 15 kt becoming NW 10 kt after midnight. Seas 3 ft. |
| Wed | E wind 10 kt increasing to 20 kt in the afternoon. Seas 2 ft building to 4 ft in the afternoon. Rain. |
| Wed Night | E wind 25 kt. Seas 6 ft. |
| Thu | E wind 20 kt. Seas 4 ft. |
| Fri | E wind 15 kt. Seas 2 ft. |
| Sat | NE wind 10 kt. Seas 2 ft. |
Issued Tue 2:42 AM by Anchorage Alaska (product CWFAER).
Recent buoy conditions
| Time | Wind | Gust | Seas | Water |
|---|---|---|---|---|
| Tue 11:10 AM | 10 kt N | 12 kt | — | 47°F |
| Tue 10:50 AM | 10 kt N | 10 kt | 0.7 ft | 47°F |
| Tue 9:50 AM | 12 kt NNE | 14 kt | 1.0 ft | 47°F |
| Tue 8:50 AM | 12 kt N | 14 kt | 1.0 ft | 47°F |
| Tue 7:50 AM | 12 kt NNE | 16 kt | 0.7 ft | 48°F |
| Tue 6:50 AM | 8 kt N | 10 kt | 0.7 ft | 47°F |
| Tue 5:50 AM | 10 kt N | 12 kt | 0.3 ft | 47°F |
| Tue 4:50 AM | 12 kt N | 14 kt | 0.3 ft | 47°F |
| Tue 3:50 AM | 10 kt NE | 14 kt | 0.7 ft | — |
| Tue 2:50 AM | 12 kt N | 16 kt | 0.7 ft | 48°F |
| Tue 1:50 AM | 14 kt NNE | 16 kt | 0.7 ft | 48°F |
| Tue 12:50 AM | 12 kt NNE | 14 kt | 0.7 ft | 48°F |
Observed Tue 11:10 AM at NDBC buoy 46081 (Western Prince William Sound), 37.5 miles away.
Frequently asked questions
What is the marine forecast for Southwest Prince William Sound today?
Today: N wind 15 kt becoming NE 10 kt in the afternoon. Seas 3 ft.
Is there a small craft advisory for Southwest Prince William Sound?
No advisories, warnings or watches are in effect for NWS zone PKZ726 as of the last update on this page. Advisories can be issued at any time; check the current bulletin before leaving the dock.
What is the water temperature at Southwest Prince William Sound?
The nearest buoy read 47°F (8°C) at Tue 11:10 AM. Sea surface temperature at a single buoy can differ by several degrees from the water at a beach or in a shallow bay nearby.
What do the wind speeds in knots mean?
One knot is 1.15 mph. The National Weather Service issues a small craft advisory for sustained winds of roughly 22–33 knots or hazardous seas, a gale warning at 34–47 knots, and a storm warning at 48 knots and above. Exact advisory thresholds vary by forecast office and by water body — a bay reaches dangerous chop at a lower wind speed than open ocean.
Where does this forecast come from?
The forecast text is the National Weather Service's own marine bulletin for zone PKZ726, issued by Anchorage Alaska, reproduced in full. The wind and seas charts are drawn from the NWS gridded forecast for a point inside the zone. Observations come from the nearest reporting NDBC buoy. We are not affiliated with NOAA or the National Weather Service.
Forecast: NOAA/NWS product CWFAER, issued Tue 2:42 AM. Observations: NOAA National Data Buoy Center station 46081, read Tue 11:10 AM. Retrieved Oct 13, 11:42 AM. Conditions offshore change faster than any page can be rebuilt, so check the current NWS bulletin and your own instruments before going out.