Ontonagon
NDBC buoy otnm4
Observed , 1 hour ago
Favorable
Light and variable winds, easing. Air 64°F. Late This Afternoon: Northeast Wind Less Than 10 Knots.
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
1.9kn
Gust
4.1kn
Direction
140° SE
Trend
Easing
Last 11 hours1 to 11 kn
Air temp
64°F
Last 11 hours40 to 64°F
Pressure
1028mbar
Tendency
Easing
3 hour change
-1.7 mbar
Last 11 hours1028 to 1033 mbar
Zone forecast
Late This Afternoon
Northeast Wind Less Than 10 Knots. Sunny. Waves Calm To 1 Foot.
Tonight
Southeast Wind Less Than 10 Knots Veering South By Midnight. Clear Through Midnight Then Becoming Partly Cloudy. Waves Calm To 1 Foot.
Thursday
South Wind Less Than 10 Knots Through Early Afternoon Becoming Variable. Partly Cloudy Through Mid Morning Then Becoming Cloudy. Waves Calm To 1 Foot.
NWS zone Black River To Ontonagon MI
Last 24 hours
Every 3 hours, over the last 9 hours. Pressure 1,028 to 1,033 mbar over the same window.
1 station 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 otnm4 report?
Wind, temperature and pressure update about every 10 minutes.
Can I be notified when conditions change at buoy otnm4?
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 Black River To Ontonagon MI 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 otnm4 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 otnm4 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 or water temperature. 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 otnm4
46°52'12" N 89°19'48" W · owned and maintained by NWS Central Region
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.