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Real-Time Meteorological Observation Network
Alpena, MI  (APNM4)  45° 03´ 35" N,   83° 25´ 25" W

In collaboration with Thunder Bay National Marine Sanctuary
See Metadata File for full description of instruments and parameters, as well as site maps.
Conditions at 9:30 am EST on 11/20/2018 (DOY 324 14:30 GMT)
(Updated at about 04,14,24,34,44,54 minutes past the hour)
Wind Speed:   9.1 kts   (4.7 m/s)
Max Wind Speed:   11.7 kts   (6.0 m/s)
Wind Direction:   328° (NNW)
Air Temperature:   18.9 °F   (-7.3 °C)
Wind Chill:   7.1 °F   (-13.8 °C)
Data & Plots of Previous 3 Hours (2 minute increments)
Data & Plots of Previous 5 Days (hourly increments)
         1 Day Windrose Plot5 Day Windrose Plot(explanation)         
Click on image to enlarge
(images updated 6X per hour)
Webcam Location & Info
[Alpena, MI Webcam 1 is Down]
[Alpena, MI Webcam 2 is Down]
[Alpena, MI Webcam 3 is Down]
[Alpena, MI Webcam 4 is Down]
6-hr animations: 1  2  3  4
Previous 48 images (top of hour only): 1  2  3  4
All Images (past 14 days)

----- Previous 18 Hours (at top of hour)  [English] [Metric] -----
YEARDOY EST Wind
Spd
kts
Wind
Gust
kts
Peak
Wind
kts
Wind
Dir
deg
Air
Tmp
F
Wind
Chill
F
20183240900 7.2 8.9 13.6 321 18.5 8.2
20183240800 6.6 8.2 10.5 326 18.7 8.9
20183240700 6.2 8.0 10.5 000 19.2 10.0
20183240600 7.4 9.5 12.8 000 20.3 10.2
20183240500 8.6 10.7 14.6 000 21.9 11.3
20183240400 3.7 5.1 13.4 352 23.5 18.0
20183240300 5.6 7.2 14.0 000 23.9 16.2
20183240200 7.0 10.1 10.9 000 24.6 15.8
20183240100 4.9 8.2 10.7 000 25.3 18.7
20183240000 5.6 7.2 9.7 340 25.9 18.5
20183232300 7.4 10.7 12.4 000 26.2 17.5
20183232200 7.0 9.3 14.0 014 26.8 18.5
20183232100 8.9 12.1 17.5 035 27.5 18.0
20183232000 8.7 10.5 16.1 043 28.8 19.7
20183231900 6.6 8.7 17.1 344 30.0 22.7
20183231800 4.5 5.4 8.4 326 30.0 24.6
20183231700 3.3 3.7 6.0 306 30.4 26.4
20183231600 5.2 6.4 7.0 294 31.1 25.1
Note: Peak wind is max wind gust during entire hour
Note: Wind chill is set to -99 if air temp > 40 F or wind speed < 3 mph

      right arrow Click here for today's 2-minute data: 20181120.c6t.txt, data format (metadata)
      right arrow Click here for past data: 2018 | Archive

Access current marine observations on your mobile device. See NDBC's mobile access page.
These data are also available from NDBC website and NDBC's Dial-a-Buoy Program.
See also NWS Marine Forecast for this area, and NWS Recreational Beach Forecast

Realtime Data Disclaimer


Additional Great Lakes Meteorological Observations

» NWS, Grand Rapids Office: Near-Realtime Marine Weather, includes current conditions and forecasts
» NWS, White Lake Office: Near-Realtime Marine Weather, includes current conditions and forecasts
» NDBC Great Lakes ImageMap showing U.S. and Canadian Buoys and C-MAN Stations
» NOAA CoastWatch Great Lakes NOAAPORT Data, includes all station types
» NOAA's NowCoast: Web mapping portal to real-time coastal observations
» Winds courtesy of iWindsurf.com
» NWS Great Lakes Marine Text Forecasts by Zone
» Links to Great Lakes Water Temperature, Wind/Wave Data, & Water Levels
» GLIN: Great Lakes Information Network