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 4:50 am CDT on 05/24/2018 (DOY 144 09:50 GMT)
(Updated at about 08,23,38,53 minutes past the hour)

Wind Speed:	3.9 kts (2.0 m/s)
Max Wind Speed:	4.3 kts (2.2 m/s)
Wind Direction:	185° (S)
Air Temperature:	60.1 °F (15.6 °C)
Dew Point:	55.0 °F (12.8 °C)
Relative Humidity:	83.2 %
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	144	0400	1.6	1.7	4.3	205	58.3	53.3	83.4
2018	144	0300	1.2	1.6	1.6	125	57.6	52.6	83.2
2018	144	0200	4.5	4.7	4.9	150	58.5	52.6	80.7
2018	144	0100	3.7	4.3	4.9	153	59.0	53.4	81.5
2018	144	0000	4.9	5.2	5.4	189	57.6	55.9	94.2
2018	143	2300	2.5	3.1	5.6	119	56.5	56.4	99.7
2018	143	2200	3.3	4.1	5.8	162	56.1	56.0	99.7
2018	143	2100	4.1	4.7	5.4	145	55.6	55.4	99.4
2018	143	2000	4.7	5.1	6.6	109	56.1	54.9	95.7
2018	143	1900	2.3	3.1	6.6	118	59.0	56.1	90.1
2018	143	1800	0.6	2.7	7.0	106	59.0	56.9	92.8
2018	143	1700	4.3	5.2	8.9	088	58.3	56.1	92.5
2018	143	1600	8.9	9.3	9.5	077	59.2	56.8	91.7
2018	143	1500	7.2	7.2	9.7	087	60.3	54.9	82.3
2018	143	1400	6.0	6.2	7.0	101	60.6	54.7	80.5
2018	143	1300	5.1	5.2	7.4	124	61.2	55.9	82.7
2018	143	1200	5.2	5.4	6.2	127	61.5	56.5	83.4
2018	143	1100	4.1	4.3	6.6	133	59.4	56.6	90.6

Note: Peak wind is max wind gust during entire hour

Click here for today's 2-minute data: 20180524.04t.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