NOAA - Great Lakes Environmental Research Laboratory

Real-Time Meteorological Observation Network
Chicago, IL (CHII2) Harrison-Dever Crib, approx. 2.75 miles offshore

See Metadata File for full description of instruments and parameters, as well as site maps.

Conditions at 2:36 am CDT on 06/22/2018 (DOY 173 07:36 GMT)
(Updated at about 08,23,38,53 minutes past the hour)

Wind Speed:	17.5 kts (9.0 m/s)
Max Wind Speed:	18.9 kts (9.7 m/s)
Wind Direction:	43° (NE)
Air Temperature:	62.2 °F (16.8 °C)
Dew Point:	62.2 °F (16.8 °C)
Relative Humidity:	99.7 %
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 6X per hour)
Webcam Location & Info

6-hr animations: 1 2 3
Previous 48 images (top of hour only): 1 2 3
All Images (past 14 days)

Nearby Webcams (external sites):
Webcams of Chicago courtesy of WXYZ Webcams
Loyola University Lake Shore Campus
Loop and Lake Michigan courtesy of ABC News

---------- Previous 18 Hours (at top of hour) [English] [Metric] ----------
YEAR	DOY	CDT	Wind Spd kts	Wind Gust kts	Peak Wind kts	Wind Dir deg	Air Tmp F	Dew Pt F	Rel Hum %
2018	173	0200	17.9	21.2	22.7	047	63.0	62.8	99.5
2018	173	0100	17.3	18.9	25.1	022	62.1	61.4	97.7
2018	173	0000	17.1	19.1	21.2	007	60.1	59.5	98.0
2018	172	2300	12.1	13.4	19.1	059	63.7	62.1	94.6
2018	172	2200	14.0	15.4	16.3	036	63.9	61.9	93.4
2018	172	2100	10.1	10.7	15.9	035	63.1	61.8	95.4
2018	172	2000	6.2	6.4	10.9	358	62.6	62.5	99.7
2018	172	1900	8.4	8.9	8.9	051	62.6	62.5	99.7
2018	172	1800	17.3	18.9	19.6	078	63.3	63.2	99.7
2018	172	1700	15.4	16.3	25.5	065	63.3	63.3	99.8
2018	172	1600	12.2	14.0	19.1	070	62.8	62.7	99.8
2018	172	1500	16.7	18.5	18.5	057	62.8	62.7	99.8
2018	172	1400	17.7	19.8	21.0	066	62.8	62.7	99.8
2018	172	1300	19.4	20.8	23.1	069	63.0	62.9	99.8
2018	172	1200	18.5	19.4	23.7	066	63.0	62.9	99.8
2018	172	1100	15.7	16.3	21.8	074	63.1	63.1	99.8
2018	172	1000	17.9	18.5	20.2	082	64.9	64.9	99.8
2018	172	0900	12.6	13.4	22.9	079	64.6	64.5	99.7

Note: Peak wind is max wind gust during entire hour

Click here for today's 2-minute data: 20180622.04t.txt, data format (metadata)
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Click here for past data: 2018 | 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 City of Chicago, IL / Water Department, USACE

Additional Great Lakes Meteorological Observations

Real-Time Meteorological Observation NetworkChicago, IL (CHII2) Harrison-Dever Crib, approx. 2.75 miles offshore