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 5:22 pm EDT on 04/08/2020 (DOY 099 21:22 GMT)
(Updated at about 26,56 minutes past the hour)

Wind Speed:	8.0 kts (4.1 m/s)
Max Wind Speed:	8.7 kts (4.5 m/s)
Wind Direction:	146° (SE)
Air Temperature:	38.8 °F (3.8 °C)
Wind Chill:	32.6 °F (0.3 °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	099	1700	7.6	8.7	9.3	148	38.7
2020	099	1600	3.7	5.6	9.5	102	41.0
2020	099	1500	8.0	9.7	11.1	025	40.6
2020	099	1400	7.2	8.9	12.6	018	41.2
2020	099	1300	7.8	10.5	14.0	012	41.4
2020	099	1200	4.9	8.0	10.7	300	49.3
2020	099	1100	6.0	10.9	10.9	303	45.9
2020	099	1000	7.2	12.8	15.2	288	43.3
2020	099	0900	3.7	6.6	11.7	301	41.9
2020	099	0800	4.3	8.0	13.0	306	41.9
2020	099	0700	4.3	6.6	8.7	323	40.6
2020	099	0600	2.7	4.3	8.2	344	38.8
2020	099	0500	2.9	5.4	6.4	334	41.4
2020	099	0400	3.9	7.0	8.0	293	40.6
2020	099	0300	5.6	6.2	8.2	247	39.0
2020	099	0200	4.9	6.2	7.0	255	37.9
2020	099	0100	3.1	4.5	5.4	290	38.5
2020	099	0000	2.9	3.7	4.9	272	37.8

Note: Peak wind is max wind gust during entire hour

Click here for today's 2-minute data: 20200408.10t.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