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Real-Time Meteorological Observation Network
Thunder Bay Island, MI  (TBIM4)  45° 02´ 05" N,   83° 11´ 39" W

See Metadata File for full description of instruments and parameters, as well as site maps. See also rtmon status, webcam status
Conditions at 11:04 am EST on 02/13/2025 (DOY 044 16:04 GMT)
(Updated every 30 minutes)
Wind Speed:   7.0 kts   (3.6 m/s)
Max Wind Speed:   10.3 kts   (5.3 m/s)
Wind Direction:   288° (WNW)
Air Temperature:   19.4 °F   (-7.0 °C)
Wind Chill:   9.5 °F   (-12.5 °C)
Data & Plots of Previous 3 Hours (2 minute increments)
Data & Plots of Previous 5 Days (hourly increments)
         1 Day Windrose Plot5 Day Windrose Plot(explanation)         
Click on image to enlarge
(images updated hourly)

[Live Webcam Image from Thunder Bay Island, MI Met Station Camera 1]

[Live Webcam Image from Thunder Bay Island, MI Met Station Camera 2]

[Live Webcam Image from Thunder Bay Island, MI Met Station Camera 3]

[Live Webcam Image from Thunder Bay Island, MI Met Station Camera 4]

[Live Webcam Image from Thunder Bay Island, MI Met Station Camera 5]

24-hr animations:  1  2  3  4  5
Previous 48 images:  1  2  3  4  5
All Images (past 10 days)

----- Previous 18 Hours (at top of hour)  [English] [Metric] -----
YEARDOY EST Wind
Spd
kts
Wind
Gust
kts
Peak
Wind
kts
Wind
Dir
deg
Air
Tmp
F
Wind
Chill
F
20250441100 7.8 13.8 15.7 307 19.2 8.6
20250441000 7.6 12.6 15.2 318 18.1 7.4
20250440900 6.4 11.1 14.2 310 17.6 7.8
20250440800 7.6 10.7 14.0 335 18.3 7.6
20250440700 8.4 12.4 16.9 352 18.3 7.0
20250440600 8.6 13.2 16.1 357 18.7 7.3
20250440400 18.3 20.8 21.0 025 19.6 3.3
20250440300 22.2 25.5 25.7 035 21.0 3.9
20250440200 23.5 26.4 26.6 040 21.2 3.7
20250440100 22.0 25.7 28.2 048 22.8 6.3
20250440000 16.7 21.0 26.4 065 23.7 9.4
20250432300 16.9 21.6 24.5 069 23.4 8.8
20250432200 19.4 22.2 25.9 072 23.5 8.1
20250432100 19.4 23.1 25.5 078 23.4 7.9
20250432000 19.8 23.3 24.5 079 22.5 6.6
20250431800 21.2 23.5 25.5 083 22.1 5.6
20250431700 19.4 22.4 26.2 086 21.9 6.0
20250431600 15.9 18.7 24.3 092 21.9 7.3
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: 20250213.10t.txt.txt, data format (metadata)
      right arrow Click here for past data: 2025 | Archive

The NDBC station ID for this station is: TBIM4
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
Special thanks to NWS, Thunder Bay National Marine Sanctuary (TBNMS), and 9th District USCG.


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