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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 2:30 pm EDT on 03/21/2026 (DOY 080 18:30 GMT)
(Updated every 10 minutes)
Wind Speed:   12.8 kts   (6.6 m/s)
Max Wind Speed:   14.8 kts   (7.6 m/s)
Wind Direction:   141° (SE)
Air Temperature:   32.4 °F   (0.2 °C)
Wind Chill:   22.1 °F   (-5.5 °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)

[Live Webcam Image from Alpena, MI Met Station Camera 1]

[Live Webcam Image from Alpena, MI Met Station Camera 2]

[Live Webcam Image from Alpena, MI Met Station Camera 3]

[Live Webcam Image from Alpena, MI Met Station Camera 4]

[Live Webcam Image from Alpena, MI Met Station Camera 5]

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
m/s 		Wind
Gust
m/s 		Peak
Wind
m/s 		Wind
Dir
deg 		Air
Tmp
C 		Wind
Chill
C
20260801400 4.4 4.9 7.6 140 0.2 -4.3
20260801300 4.1 4.5 5.0 116 0.3 -4.0
20260801200 4.9 5.4 6.2 118 0.5 -4.2
20260801100 3.4 3.9 5.9 071 0.8 -2.9
20260801000 1.7 2.4 4.5 036 1.0 -0.9
20260800900 1.1 1.5 2.2 007 0.8 0.8
20260800800 1.4 2.0 2.8 006 0.3 -1.3
20260800700 0.9 1.0 2.6 360 0.5 0.5
20260800600 2.1 2.5 3.0 294 1.0 -1.4
20260800500 1.7 2.6 3.1 314 1.2 -0.7
20260800400 2.2 2.7 3.6 314 1.3 -1.2
20260800300 1.8 2.5 3.9 311 1.1 -0.9
20260800200 1.7 2.1 3.4 317 0.6 -1.4
20260800100 0.0 0.3 2.7 286 0.2 0.2
20260800000 0.4 0.5 0.7 138 0.3 0.3
20260792300 1.0 1.5 1.7 326 0.7 0.7
20260792200 1.5 1.6 2.3 230 0.5 -1.2
20260792100 1.1 1.5 1.7 328 0.7 0.7
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: 20260321.c6t.txt.txt, data format (metadata)
      right arrow Click here for past data: 2026 | 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