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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. See also rtmon status, webcam status
Conditions at 12:00 pm EST on 02/13/2025 (DOY 044 17:00 GMT)
(Updated every 10 minutes)
Wind Speed:   11.7 kts   (6.0 m/s)
Max Wind Speed:   13.8 kts   (7.1 m/s)
Wind Direction:   307° (NW)
Air Temperature:   19.2 °F   (-7.1 °C)
Wind Chill:   6.0 °F   (-14.5 °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 every 10 minutes)

[Alpena, MI Webcam 1 is Down]

[Alpena, MI Webcam 2 is Down]

[Alpena, MI Webcam 3 is Down]

[Alpena, MI Webcam 4 is Down]

[Alpena, MI Webcam 5 is Down]

6-hr animations: 1  2  3  4  5
Previous 48 images (top of hour only): 1  2  3  4  5
All Images (past 10 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
20250441200 11.7 13.8 13.8 307 19.2 6.0
20250441100 11.9 15.6 18.3 302 17.2 3.3
20250441000 11.9 14.8 19.2 307 16.5 2.4
20250440900 7.2 10.5 16.7 309 16.0 5.1
20250440800 3.5 5.1 11.1 323 15.8 9.3
20250440700 5.1 7.2 9.9 328 16.0 7.3
20250440600 5.8 8.4 9.7 348 16.2 6.7
20250440500 5.8 8.4 10.1 357 16.9 7.5
20250440400 8.9 10.5 12.4 025 17.4 5.5
20250440300 10.5 13.0 15.6 023 18.0 5.1
20250440200 8.6 11.3 19.4 034 19.0 7.8
20250440100 10.9 15.4 17.5 036 19.8 7.1
20250440000 7.0 9.7 16.9 057 21.7 12.3
20250432300 11.3 15.2 20.2 065 21.4 8.9
20250432200 16.7 20.6 21.2 072 21.4 6.3
20250432100 18.3 21.0 23.7 079 21.0 5.2
20250432000 16.5 18.9 23.9 091 21.0 5.9
20250431900 16.5 18.5 24.7 088 20.8 5.7
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 recent 2-minute daily data: 20250213.c6t.txt.txt, data format (metadata)
      right arrow Click here for past data: 2025 | Archive

The NDBC station ID for this station is: APNM4
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


Contact:
General Information & Media Inquiries:
oar.glerl.www@noaa.gov
(734) 741-2235
Data Inquiries:
oar.glerl.data@noaa.gov