Ontonagon
NDBC buoy otnm4
Observed , 1 hour ago
Hazardous
Rest of today
Small Craft Advisory in effect. Moderate WNW winds at 11 kn gusting to 18 kn, easing. Air 49°F. Rest of Today: Northwest wind 15 to 25 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 iPhoneSmall Craft Advisory
Small Craft Advisory issued November 8 at 11:00AM EST until November 8 at 7:00PM EST by NWS Marquette MI
* WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt and waves 3 to 6 ft occurring. * WHERE...Saxon Harbor WI to Black River MI and Black River to Ontonagon MI. * WHEN...Until 7 PM EST /6 PM CST/ this evening. * IMPACTS...Conditions will be hazardous to small craft.
Pro also pushes NOAA watches, warnings, and advisories when they are issued.
Get Buoycast for iPhoneWind
Speed
11kn
Gust
18kn
Direction
300° WNW
Trend
Easing
Last 11 hours4.1 to 17 kn
Air temp
49°F
Last 11 hours49 to 52°F
Pressure
1010mbar
Tendency
Rising
3 hour change
+2 mbar
Last 11 hours1006 to 1010 mbar
Zone forecast
Rest of Today
Northwest wind 15 to 25 knots. Cloudy. Waves 4 to 7 feet occasionally to 9 feet subsiding to 3 to 6 feet occasionally to 8 feet.
Tonight
Northwest wind 10 to 20 knots diminishing to less than 10 knots with gusts up to 22 knots by midnight, then backing west late. Mostly cloudy. Waves subsiding to 1 to 2 feet.
Monday
South wind less than 10 knots veering southwest 10 to 15 knots in the afternoon. Mostly 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 1,006 to 1,010 mbar over the same window.
Common 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.