Alpena harbor light
NDBC buoy apnm4
Observed , 29 minutes ago
Challenging
Tonight
Light ENE winds at 8 kn gusting to 11 kn, easing. Air 59°F. Tonight: Southeast Wind 15 To 20 Knots Decreasing To 5 To 10 Knots Early In The Morning.
It tells you it is rough now. The app tells you before it gets rough, with alerts at the wind and wave limits you set.
Get Buoycast for iPhoneWind
Speed
8kn
Gust
11kn
Direction
70° ENE
Trend
Easing
Last 12 hours8 to 17 kn
Air temp
59°F
Last 12 hours59 to 61°F
Zone forecast
Tonight
Southeast Wind 15 To 20 Knots Decreasing To 5 To 10 Knots Early In The Morning. Mostly Clear. Waves 2 To 4 Feet.
Thursday
Southeast Wind 10 To 15 Knots. Sunny. Waves 2 To 3 Feet.
Thursday Night
Southeast Wind 5 To 10 Knots. Partly Cloudy. Waves 2 Feet Or Less.
NWS zone Presque Isle Light to Sturgeon Pt MI Including Thunder Bay National Marine Sanctuary
Last 24 hours
Every 3 hours, over the last 12 hours.
4 stations within 30 NM
These are your in one place. Save the ones you run and Buoycast opens on them.
Get Buoycast for iPhoneCommon questions
How often does buoy apnm4 report?
Wind and temperature update about every 10 minutes.
Can I be notified when conditions change at buoy apnm4?
Buoycast Pro lets you set your own limits on wind, waves or pressure and sends a threshold notification when this buoy crosses them.
Does this page show NOAA warnings for this area?
Watches, warnings, and advisories for Presque Isle Light to Sturgeon Pt MI Including Thunder Bay National Marine Sanctuary appear alongside the conditions, here and in the app. Pro also pushes NOAA watches, warnings, and advisories when they are issued.
Can I see the forecast against what buoy apnm4 measured?
This page shows measurements only. Buoycast Pro charts the NOAA forecast against them so you can see where the two diverge.
Can I keep buoy apnm4 for next time?
Save it as a favorite and Buoycast opens on the buoys you run.
What this buoy measures
This buoy is not reporting waves, water temperature or barometric pressure. Conditions above come from the sensors it does carry, and the forecast, tides and sun times on this page are regional rather than measured at the buoy.
Station apnm4
45°03'36" N 83°25'26" W · owned and maintained by GLERL
Measured on the water by 1,000+ NOAA buoys. Observations from the National Data Buoy Center, forecasts and advisories from the National Weather Service. Not for navigation.