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 11:22 am EDT on 04/05/2020 (DOY 096 15:22 GMT)
(Updated at about 26,56 minutes past the hour)

Wind Speed:	8.4 kts (4.3 m/s)
Max Wind Speed:	12.2 kts (6.3 m/s)
Wind Direction:	350° (N)
Air Temperature:	35.2 °F (1.8 °C)
Wind Chill:	27.9 °F (-2.3 °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	EDT	Wind Spd kts	Wind Gust kts	Peak Wind kts	Wind Dir deg	Air Tmp F
2020	096	1100	6.0	9.3	15.4	347	34.0
2020	096	1000	6.4	12.6	14.4	350	32.4
2020	096	0900	10.1	15.7	15.7	353	31.8
2020	096	0800	3.7	8.9	16.3	325	31.5
2020	096	0700	6.0	12.4	18.5	325	30.9
2020	096	0600	6.6	12.2	16.9	330	30.7
2020	096	0500	6.0	16.1	16.9	323	30.6
2020	096	0400	7.8	13.2	16.3	313	30.4
2020	096	0300	9.1	17.9	17.9	331	30.6
2020	096	0200	6.6	11.5	15.9	310	30.9
2020	096	0100	6.6	11.7	15.9	314	31.6
2020	096	0000	6.8	10.9	16.9	330	33.1
2020	095	2300	6.2	11.7	15.0	334	34.2
2020	095	2200	3.7	7.4	14.2	322	34.7
2020	095	2100	5.1	8.7	15.2	332	34.9
2020	095	2000	8.2	13.4	15.0	321	34.9
2020	095	1900	5.4	12.1	14.2	327	34.5
2020	095	1800	5.6	10.5	17.3	331	35.1

Note: Peak wind is max wind gust during entire hour

Click here for today's 2-minute data: 20200405.10t.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