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.

Conditions at 7:24 pm EST on 02/20/2019 (DOY 052 00:24 GMT)
(Updated at about 27,57 minutes past the hour)

Wind Speed:	18.7 kts (9.6 m/s)
Max Wind Speed:	22.2 kts (11.4 m/s)
Wind Direction:	153° (SSE)
Air Temperature:	30.6 °F (-0.8 °C)
Wind Chill:	17.7 °F (-8.0 °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
Previous 48 images: 1 2 3
All Images (past 7 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
2019	051	1900	20.4	22.9	25.9	136	30.6	17.1
2019	051	1800	19.1	24.7	26.8	115	29.5	16.1
2019	051	1700	18.1	21.4	28.0	104	28.6	15.3
2019	051	1600	15.9	20.6	23.5	091	28.2	15.6
2019	051	1500	16.7	21.6	23.3	095	28.4	15.5
2019	051	1400	11.7	13.2	19.6	112	28.4	17.6
2019	051	1300	9.9	11.3	13.8	128	27.3	17.2
2019	051	1200	12.6	15.0	15.6	145	27.3	15.8
2019	051	1100	13.2	15.2	16.9	130	27.0	15.0
2019	051	1000	13.0	14.8	16.5	133	26.2	14.2
2019	051	0900	11.3	12.8	15.6	144	25.3	13.9
2019	051	0800	13.8	15.2	15.2	161	24.6	11.8
2019	051	0700	11.5	13.4	14.8	162	24.3	12.5
2019	051	0600	9.7	10.9	14.4	202	23.5	12.6
2019	051	0500	8.2	10.1	11.5	209	22.1	11.8
2019	051	0400	8.9	10.3	10.9	208	22.8	12.2
2019	051	0300	4.9	5.6	9.9	214	22.3	15.0
2019	051	0200	5.6	6.6	8.2	232	21.9	13.8

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: 20190221.10t.txt, data format (metadata)
right arrow

Click here for past data: 2019 | 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