NOAA - Great Lakes Environmental Research Laboratory

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 10:22 am EST on 01/24/2020 (DOY 024 15:22 GMT)
(Updated at about 26,56 minutes past the hour)

Wind Speed:	11.1 kts (5.7 m/s)
Max Wind Speed:	12.2 kts (6.3 m/s)
Wind Direction:	81° (E)
Air Temperature:	35.2 °F (1.8 °C)
Wind Chill:	26.6 °F (-3.0 °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 1X per hour)
Webcam Location & Info

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] -----
YEAR	DOY	EST	Wind Spd kts	Wind Gust kts	Peak Wind kts	Wind Dir deg	Air Tmp F	Wind Chill F
2020	024	1000	9.3	10.3	12.2	079	35.2	27.4
2020	024	0900	10.5	11.9	12.1	103	35.4	27.1
2020	024	0800	10.3	11.5	12.2	104	35.2	26.9
2020	024	0700	9.1	10.5	11.5	097	35.2	27.5
2020	024	0600	8.4	9.5	11.1	100	35.1	27.7
2020	024	0500	6.4	6.8	10.5	093	34.9	28.7
2020	024	0400	8.6	9.3	10.9	089	35.1	27.6
2020	024	0300	9.1	10.1	12.2	094	35.1	27.3
2020	024	0200	7.0	8.0	10.5	090	35.1	28.5
2020	024	0100	8.0	8.7	10.1	096	35.1	27.9
2020	024	0000	8.7	10.1	10.1	105	35.1	27.5
2020	023	2300	9.1	10.7	10.7	079	34.9	27.1
2020	023	2200	8.2	9.7	11.1	115	34.7	27.4
2020	023	2100	7.6	8.6	11.3	123	34.5	27.5
2020	023	2000	8.2	8.9	10.5	117	34.5	27.2
2020	023	1900	8.7	9.3	10.3	108	34.2	26.4
2020	023	1800	6.0	6.6	9.5	097	33.8	27.7
2020	023	1700	3.7	4.1	8.0	084	33.3	29.3

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

Click here for today's 2-minute data: 20200124.10t.txt, data format (metadata)
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Click here for past data: 2020 | Archive

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

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