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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 3:00 am EST on 12/24/2025 (DOY 358 08:00 GMT)
(Updated every 10 minutes)
Wind Speed:   9.1 kts   (4.7 m/s)
Max Wind Speed:   14.0 kts   (7.2 m/s)
Wind Direction:   323° (NW)
Air Temperature:   30.9 °F   (-0.6 °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 EST Wind
Spd
m/s 		Wind
Gust
m/s 		Peak
Wind
m/s 		Wind
Dir
deg 		Air
Tmp
C 		Wind
Chill
C
20253580300 4.7 7.2 7.2 323 -0.6 -5.5
20253580200 5.6 8.9 11.1 321 -0.2 -5.5
20253580100 7.3 10.1 13.4 323 0.6 -5.3
20253580000 6.3 8.4 12.0 329 1.0 -4.3
20253572300 6.1 8.6 14.2 310 2.0 -3.0
20253572200 9.1 12.9 12.9 300 2.3 -3.7
20253572100 9.5 12.0 14.1 303 2.7 -3.3
20253572000 9.4 12.1 15.7 310 2.8 -3.1
20253571900 8.7 10.4 13.8 301 2.9 -2.8
20253571800 8.9 12.7 14.7 307 3.2 -2.5
20253571700 7.5 10.0 13.7 305 3.7 -1.3
20253571600 5.9 7.1 11.6 291 5.7 -99.0
20253571500 6.2 7.2 10.9 299 5.6 -99.0
20253571400 4.4 7.1 11.7 279 4.6 -99.0
20253571300 3.9 5.0 8.3 271 3.2 -0.3
20253571200 3.7 5.8 8.4 253 2.1 -1.5
20253560700 4.1 5.5 5.5 209 -4.9 -10.4
20253550700 7.1 9.4 10.1 278 -7.5 -15.6
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: 20251224.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