Marine forecast
Outer Apostle Islands (beyond 5 nm), MN
- current wind
- 7 kt WSW
- Gusts
- 9 kt
- Seas
- 2.6 ft
- Period
- 6 sec
- Air
- 48°F
Observed Tue 2:10 PM | LSZ150
- Gusts now
- 9 kt
- Seas now
- 2.6 ft · 6 sec
- Air
- 48°F
- 72-hr peak
- 32 kt
- Peak seas
- 4 ft
In brief
At 2:10 pm CDT on Oct 13, 2026, NDBC station DISW3 (Devils Island, WI, 11 miles away) measured wind from the WSW at 7 kt, gusting to 9 kt; buoy 45023 measured seas of 2.6 ft. The NWS forecast for Outer Apostle Islands (beyond 5 nm), MN issued at 2:22 pm CDT on Oct 13, 2026 reads, for tonight: “Northwest wind 5 to 10 knots. Chance of sprinkles early in the evening.” A Small Craft Advisory is in effect until Tue 4:00 PM.
Source: National Weather Service Duluth MN forecast; NDBC observations
Wind forecast · ktPeak 32 kt
Seas forecast · ftPeak 4 ft
Marine advisory
Small Craft Advisory in effect for Outer Apostle Islands (beyond 5 nm) until Tue 4:00 PM.
Full text of this small craft advisory
* WHAT...Waves 3 to 6 ft. Northwest winds 5 to 10 knots. * WHERE...Outer Apostle Islands Beyond 5 NM from Mainland. * WHEN...Until 4 PM CDT this afternoon. * IMPACTS...Conditions will be hazardous to small craft.
NWS marine forecast
| Period | Forecast |
|---|---|
| Tonight | Northwest wind 5 to 10 knots. Chance of sprinkles early in the evening. Waves 1 to 3 feet subsiding to 1 to 2 feet in the late evening and overnight. |
| Wednesday | Northwest wind 5 to 10 knots. Mostly sunny. Waves 1 to 2 feet. |
| Wednesday Night | North wind 5 knots becoming southeast in the late evening and overnight. Mostly cloudy. Waves 1 foot or less. |
| Thursday | South wind 5 to 10 knots becoming southwest with gusts to around 20 knots in the afternoon. Chance of rain showers in the afternoon. Waves 1 foot or less. |
Issued Tue 2:22 PM by Duluth MN (product NSHDLH).
Recent buoy conditions
| Time | Wind | Gust | Seas | Water |
|---|---|---|---|---|
| Tue 2:10 PM | 7 kt WSW | 9 kt | — | — |
| Tue 1:50 PM | 5 kt WSW | 7 kt | — | — |
| Tue 12:50 PM | 5 kt WSW | 7 kt | — | — |
| Tue 11:50 AM | 3 kt NW | 5 kt | — | — |
| Tue 10:50 AM | 5 kt NNE | 7 kt | — | — |
| Tue 9:50 AM | 8 kt NNE | 9 kt | — | — |
| Tue 8:50 AM | 9 kt NNE | 11 kt | — | — |
| Tue 7:50 AM | 13 kt NNE | 15 kt | — | — |
| Tue 6:50 AM | 15 kt NNE | 17 kt | — | — |
| Tue 5:50 AM | 18 kt NNE | 21 kt | — | — |
| Tue 4:50 AM | 23 kt NNE | 26 kt | — | — |
| Tue 3:50 AM | 22 kt NNE | 27 kt | — | — |
Observed Tue 2:10 PM at NDBC buoy DISW3 (Devils Island, WI), 10.6 miles away. Seas from buoy 45023 (North Entry Buoy, North Keweenaw Peninsula, MI), 97.6 miles away, at Tue 1:40 PM.
Frequently asked questions
What is the marine forecast for Outer Apostle Islands (beyond 5 nm) today?
Tonight: Northwest wind 5 to 10 knots. Chance of sprinkles early in the evening. Waves 1 to 3 feet subsiding to 1 to 2 feet in the late evening and overnight.
Is there a small craft advisory for Outer Apostle Islands (beyond 5 nm)?
Yes — small craft advisory in effect until Tue 4:00 PM.
How high are the waves at Outer Apostle Islands (beyond 5 nm) right now?
Seas are running 2.6 ft at a 6-second period, measured at NDBC buoy DISW3 Tue 2:10 PM, 10.6 miles from this zone. The forecast peaks at 4.0 ft Fri 6 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 LSZ150, issued by Duluth MN, 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 NSHDLH, issued Tue 2:22 PM. Observations: NOAA National Data Buoy Center station DISW3, read Tue 2:10 PM. Retrieved Oct 13, 2:42 PM. Conditions offshore change faster than any page can be rebuilt, so check the current NWS bulletin and your own instruments before going out.