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 1:06 am CDT on 05/22/2018 (DOY 142 06:06 GMT)
(Updated at about 08,23,38,53 minutes past the hour)

Wind Speed:	8.9 kts (4.6 m/s)
Max Wind Speed:	10.3 kts (5.3 m/s)
Wind Direction:	353° (N)
Air Temperature:	48.7 °F (9.3 °C)
Dew Point:	48.7 °F (9.3 °C)
Relative Humidity:	99.8 %
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	142	0100	8.9	10.1	10.7	349	48.7	48.7	99.9
2018	142	0000	9.9	10.9	11.7	355	49.8	49.8	99.8
2018	141	2300	7.2	7.4	10.1	009	51.3	51.2	99.8
2018	141	2200	9.5	10.1	12.1	332	50.0	49.9	99.8
2018	141	2100	11.9	12.4	12.6	340	49.6	49.6	99.8
2018	141	2000	6.2	6.8	13.6	359	54.9	54.8	99.8
2018	141	1900	7.6	7.8	9.9	107	58.1	58.0	99.8
2018	141	1800	14.0	18.9	18.9	250	54.0	53.9	99.8
2018	141	1700	14.6	15.0	16.7	096	54.5	54.4	99.8
2018	141	1600	4.9	6.4	16.9	098	52.3	52.3	99.8
2018	141	1500	4.7	5.8	8.6	098	52.9	52.8	99.8
2018	141	1400	12.2	12.4	12.6	102	53.8	53.7	99.8
2018	141	1300	8.0	8.4	12.2	080	54.5	54.4	99.8
2018	141	1200	6.0	6.4	7.8	170	55.6	55.5	99.8
2018	141	1100	13.8	15.6	26.6	086	52.2	52.1	99.8
2018	141	1000	18.1	18.9	24.1	070	52.0	51.9	99.8
2018	141	0900	12.6	14.2	19.8	016	48.9	48.9	99.8
2018	141	0800	10.5	11.1	15.9	018	50.4	50.3	99.8

Note: Peak wind is max wind gust during entire hour

Click here for today's 2-minute data: 20180522.04t.txt, data format (metadata)
right arrow

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