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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 8:00 pm EDT on 03/25/2025 (DOY 085 00:00 GMT)
(Updated every 10 minutes)
Wind Speed:   8.4 kts   (4.3 m/s)
Max Wind Speed:   10.5 kts   (5.4 m/s)
Wind Direction:   310° (NW)
Air Temperature:   28.4 °F   (-2.0 °C)
Wind Chill:   19.5 °F   (-7.0 °C)
Data & Plots of Previous 3 Hours (2 minute increments)
Data & Plots of Previous 5 Days (hourly increments)
         1 Day Windrose Plot, 5 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 EDT Wind
Spd
kts 		Wind
Gust
kts 		Peak
Wind
kts 		Wind
Dir
deg 		Air
Tmp
F 		Wind
Chill
F
20250842000 8.4 10.5 10.5 310 28.4 19.5
20250841900 10.7 13.8 19.8 313 28.9 18.8
20250841800 17.1 22.0 22.7 306 31.5 19.4
20250841700 11.7 14.4 22.9 303 31.6 21.7
20250841600 13.0 17.7 22.7 313 31.8 21.4
20250841500 12.8 16.3 19.4 307 31.8 21.4
20250841400 11.1 16.3 20.6 293 31.8 22.2
20250841300 13.6 17.1 20.0 302 30.2 19.0
20250841200 14.0 17.7 19.8 301 30.2 18.9
20250841100 12.1 15.6 23.9 295 30.6 20.2
20250841000 12.8 16.7 20.2 305 30.9 20.3
20250840900 11.1 13.2 18.7 299 30.4 20.4
20250840800 10.7 13.4 16.3 294 29.8 19.9
20250840700 9.9 12.1 15.2 296 30.2 20.8
20250840600 11.5 13.8 17.9 284 30.4 20.2
20250840500 10.1 13.2 16.7 295 30.7 21.4
20250840400 13.0 15.9 20.0 289 30.7 20.0
20250840300 12.6 14.8 19.8 295 30.9 20.4
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: 20250326.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