Marine forecast
Kachemak Bay, AK
- current wind
- 3 kt E
- Gusts
- 6 kt
- Seas
- 1.0 ft
- Period
- 10 sec
- Air
- 43°F
Observed Tue 11:12 AM | PKZ741
- Gusts now
- 6 kt
- Seas now
- 1.0 ft · 10 sec
- Air
- 43°F
- 72-hr peak
- 22 kt
- Peak seas
- 4 ft
In brief
At 11:12 am AKDT on Oct 13, 2026, NDBC station HMSA2 (Homer Spit, AK, 6 miles away) measured wind from the E at 3 kt, gusting to 6 kt; buoy 46108 measured seas of 1.0 ft. The NWS forecast for Kachemak Bay, AK issued at 2:42 am AKDT on Oct 13, 2026 reads, for today: “Variable wind less than 10 kt. Seas 2 ft.”
Source: National Weather Service Anchorage Alaska forecast; NDBC observations
Wind forecast · ktPeak 22 kt
Seas forecast · ftPeak 4 ft
NWS marine forecast
| Period | Forecast |
|---|---|
| Today | Variable wind less than 10 kt. Seas 2 ft. |
| Tonight | Variable wind less than 10 kt becoming NE 10 kt after midnight. Seas 2 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 | NE wind 25 kt. Seas 4 ft. |
| Thu | NE wind 25 kt. Seas 3 ft. |
| Fri | NE wind 10 kt. Seas 2 ft. |
| Sat | Variable wind less than 10 kt. Seas 2 ft. |
Issued Tue 2:42 AM by Anchorage Alaska (product CWFAER).
Recent buoy conditions
| Time | Wind | Gust | Seas | Water |
|---|---|---|---|---|
| Tue 11:12 AM | 3 kt E | 6 kt | — | — |
| Tue 10:52 AM | 4 kt E | 9 kt | — | — |
| Tue 9:52 AM | 5 kt ENE | 8 kt | — | — |
| Tue 8:52 AM | 7 kt ENE | 10 kt | — | — |
| Tue 7:52 AM | 5 kt E | 8 kt | — | — |
| Tue 6:52 AM | 4 kt NE | 6 kt | — | — |
| Tue 5:52 AM | 3 kt ESE | 5 kt | — | — |
| Tue 4:52 AM | 5 kt ENE | 9 kt | — | — |
| Tue 3:52 AM | 3 kt SE | 4 kt | — | — |
| Tue 2:52 AM | 1 kt ESE | 2 kt | — | — |
| Tue 1:52 AM | 3 kt E | 5 kt | — | — |
| Tue 12:52 AM | 4 kt ENE | 6 kt | — | — |
Observed Tue 11:12 AM at NDBC buoy HMSA2 (Homer Spit, AK), 6.5 miles away. Seas from buoy 46108 (Lower Cook Inlet (204)), 12.2 miles away, at Tue 11:00 AM.
Frequently asked questions
What is the marine forecast for Kachemak Bay today?
Today: Variable wind less than 10 kt. Seas 2 ft.
Is there a small craft advisory for Kachemak Bay?
No advisories, warnings or watches are in effect for NWS zone PKZ741 as of the last update on this page. Advisories can be issued at any time; check the current bulletin before leaving the dock.
How high are the waves at Kachemak Bay right now?
Seas are running 1.0 ft at a 10-second period, measured at NDBC buoy HMSA2 Tue 11:12 AM, 6.5 miles from this zone. The forecast peaks at 4.0 ft Wed 4 PM.
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 PKZ741, 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 HMSA2, 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.