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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 7:00 pm EST on 12/24/2025 (DOY 359 00:00 GMT)
(Updated every 10 minutes)
Wind Speed:   10.1 kts   (5.2 m/s)
Max Wind Speed:   11.1 kts   (5.7 m/s)
Wind Direction:   180° (S)
Air Temperature:   32.0 °F   (-0.0 °C)
Wind Chill:   22.9 °F   (-5.0 °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)

[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
20253581900 5.2 5.7 5.7 180 -0.0 -5.0
20253581800 5.2 5.7 6.1 175 0.1 -4.9
20253581700 6.6 7.2 7.2 165 -0.1 -5.9
20253581600 5.4 5.8 7.5 146 -0.3 -5.5
20253581500 5.1 5.4 6.4 159 -0.7 -5.9
20253581400 3.6 4.0 6.3 169 -0.8 -5.0
20253581300 3.4 3.7 5.3 143 -1.4 -5.5
20253581200 2.1 2.5 4.1 128 -1.5 -4.3
20253581100 0.6 0.9 3.2 171 -1.1 -1.1
20253581000 0.8 1.3 2.9 204 -1.2 -1.2
20253580900 1.1 1.4 3.9 049 -1.8 -1.8
20253580800 0.9 1.4 3.2 352 -1.7 -1.7
20253580700 0.8 1.3 2.8 355 -1.5 -1.5
20253580600 3.4 4.8 4.8 326 -1.5 -5.7
20253580500 4.4 6.1 6.5 308 -1.3 -6.2
20253580400 5.1 6.7 10.0 317 -1.0 -6.2
20253580300 4.7 7.2 10.7 323 -0.6 -5.5
20253580200 5.6 8.9 11.1 321 -0.2 -5.5
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: 20251225.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