Marine forecast
Clarence Strait, AK
- current wind
- 2 kt NE
- Gusts
- 3 kt
- Seas
- 4.6 ft
- Period
- 7 sec
- Air
- 49°F
Observed Tue 11:12 AM | PKZ036
- Gusts now
- 3 kt
- Seas now
- 4.6 ft · 7 sec
- Air
- 49°F
- 72-hr peak
- 18 kt
- Peak seas
- 4 ft
In brief
At 11:12 am AKDT on Oct 13, 2026, NDBC station GIXA2 (Guard Island, AK, 5 miles away) measured wind from the NE at 2 kt, gusting to 3 kt; buoy 46145 measured seas of 4.6 ft. The NWS forecast for Clarence Strait, AK issued at 3:42 am AKDT on Oct 13, 2026 reads, for today: “E wind 10 kt becoming N in the afternoon. Seas 3 ft.” A Small Craft Advisory is in effect until Thu 1:00 PM.
Source: National Weather Service Juneau AK forecast; NDBC observations
Wind forecast · ktPeak 18 kt
Seas forecast · ftPeak 4 ft
Marine advisory
Small Craft Advisory in effect for Clarence Strait until Thu 1:00 PM.
Full text of this small craft advisory
* WHAT...For the Small Craft Advisory, southeast winds 30 to 40 kt with gusts up to 45 kt and seas 9 to 14 ft expected. For the Gale Warning, southeast winds 30 to 40 kt with gusts up to 50 kt and seas 10 to 15 ft expected. * WHERE...Clarence Strait. * WHEN...For the Small Craft Advisory, from 1 AM to 1 PM AKDT Thursday. For the Gale Warning, from 1 PM Thursday to 4 AM AKDT Friday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility.
Gale Warning in effect for Clarence Strait until Fri 4:00 AM.
Full text of this gale warning
* WHAT...For the Small Craft Advisory, southeast winds 30 to 40 kt with gusts up to 45 kt and seas 9 to 14 ft expected. For the Gale Warning, southeast winds 30 to 40 kt with gusts up to 50 kt and seas 10 to 15 ft expected. * WHERE...Clarence Strait. * WHEN...For the Small Craft Advisory, from 1 AM to 1 PM AKDT Thursday. For the Gale Warning, from 1 PM Thursday to 4 AM AKDT Friday. * IMPACTS...Strong winds will cause hazardous seas which could capsize or damage vessels and reduce visibility.
NWS marine forecast
| Period | Forecast |
|---|---|
| Today | E wind 10 kt becoming N in the afternoon. Seas 3 ft. Patchy fog early in the morning. Rain. |
| Tonight | NW wind 15 kt. Seas 3 ft in the evening then 2 ft or less. |
| Wed | Light winds becoming SE 10 kt in the afternoon. Seas 2 ft or less. |
| Wed Night | SE wind 30 kt. Gusts to 45 kt. Seas 8 ft. Rain. |
| Thu | SE gale to 35 kt. Seas 14 ft. |
| Fri | SE gale to 35 kt. Seas 11 ft. |
| Sat | SE wind 30 kt. Seas 8 ft. |
Issued Tue 3:42 AM by Juneau AK (product CWFAJK).
Recent buoy conditions
| Time | Wind | Gust | Seas | Water |
|---|---|---|---|---|
| Tue 11:12 AM | 2 kt NE | 3 kt | — | — |
| Tue 10:52 AM | 1 kt NE | 3 kt | — | — |
| Tue 9:52 AM | 5 kt N | 11 kt | — | — |
| Tue 8:52 AM | 1 kt NNE | 2 kt | — | — |
| Tue 7:52 AM | 2 kt NE | 7 kt | — | — |
| Tue 6:52 AM | 2 kt ENE | 5 kt | — | — |
| Tue 5:52 AM | 1 kt N | 3 kt | — | — |
| Tue 4:52 AM | 6 kt E | 8 kt | — | — |
| Tue 3:52 AM | 1 kt ENE | 4 kt | — | — |
| Tue 2:52 AM | 2 kt NE | 5 kt | — | — |
| Tue 1:52 AM | 3 kt ENE | 6 kt | — | — |
| Tue 12:52 AM | 5 kt ENE | 7 kt | — | — |
Observed Tue 11:12 AM at NDBC buoy GIXA2 (Guard Island, AK), 4.8 miles away. Seas from buoy 46145 (Central Dixon Entrance Buoy), 81.0 miles away, at Tue 11:00 AM.
Frequently asked questions
What is the marine forecast for Clarence Strait today?
Today: E wind 10 kt becoming N in the afternoon. Seas 3 ft. Patchy fog early in the morning. Rain.
Is there a small craft advisory for Clarence Strait?
Yes — small craft advisory, gale warning in effect until Thu 1:00 PM.
How high are the waves at Clarence Strait right now?
Seas are running 4.6 ft at a 7-second period, measured at NDBC buoy GIXA2 Tue 11:12 AM, 4.8 miles from this zone. The forecast peaks at 4.0 ft Thu 7 AM.
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 PKZ036, issued by Juneau AK, 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 CWFAJK, issued Tue 3:42 AM. Observations: NOAA National Data Buoy Center station GIXA2, read Tue 11:12 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.