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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 4:40 am EST on 12/27/2025 (DOY 361 09:40 GMT)
(Updated every 10 minutes)
Wind Speed:   2.7 kts   (1.4 m/s)
Max Wind Speed:   4.1 kts   (2.1 m/s)
Wind Direction:   68° (ENE)
Air Temperature:   28.9 °F   (-1.7 °C)
Wind Chill:   25.7 °F   (-3.5 °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 EST Wind
Spd
m/s 		Wind
Gust
m/s 		Peak
Wind
m/s 		Wind
Dir
deg 		Air
Tmp
C 		Wind
Chill
C
20253610400 2.0 2.2 2.2 024 -1.7 -4.4
20253610300 0.0 0.0 2.3 000 -1.6 -1.6
20253610200 1.4 2.0 2.2 003 -1.6 -3.4
20253610100 1.5 2.0 2.2 026 -1.3 -3.2
20253610000 1.0 1.2 1.8 270 -1.2 -1.2
20253602300 1.2 1.5 2.2 034 -1.1 -1.1
20253602200 0.6 1.5 2.4 339 -1.2 -1.2
20253602100 1.5 1.9 2.2 346 -1.3 -3.2
20253602000 3.6 4.8 5.7 064 -1.2 -5.5
20253601900 3.2 4.2 5.4 330 -0.9 -4.8
20253601800 2.5 3.2 4.9 323 -0.7 -3.9
20253601700 1.8 2.4 3.7 325 -0.8 -3.1
20253601600 0.5 0.6 2.5 221 -0.5 -0.5
20253601500 1.2 1.5 1.5 220 -0.6 -0.6
20253601400 5.5 6.0 6.5 169 -0.8 -6.2
20253601300 8.5 9.2 9.6 142 -0.9 -7.7
20253601200 10.6 11.8 11.8 135 -1.4 -9.1
20253601100 9.9 10.8 12.1 147 -1.2 -8.6
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: 20251227.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