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 2:06 am CDT on 04/20/2019 (DOY 110 07:06 GMT)
(Updated at about 08,23,38,53 minutes past the hour)

Wind Speed:	20.6 kts (10.6 m/s)
Max Wind Speed:	23.3 kts (12.0 m/s)
Wind Direction:	5° (N)
Air Temperature:	42.6 °F (5.9 °C)
Dew Point:	34.9 °F (1.6 °C)
Relative Humidity:	74.0 %
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 7 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 %
2019	110	0200	21.4	23.1	23.3	003	42.8	35.1	73.8
2019	110	0100	20.4	22.7	23.7	012	42.8	35.2	74.2
2019	110	0000	22.9	24.5	25.1	014	42.6	34.8	73.7
2019	109	2300	21.8	24.1	26.2	360	42.4	35.2	75.4
2019	109	2200	25.1	28.2	29.4	009	43.2	33.8	69.3
2019	109	2100	26.6	29.5	33.8	002	43.7	32.2	63.7
2019	109	2000	28.2	32.5	33.4	001	43.2	31.7	63.6
2019	109	1900	27.0	30.3	33.4	006	42.6	32.4	66.7
2019	109	1800	25.9	30.5	34.2	357	41.9	34.3	74.0
2019	109	1700	23.7	30.3	32.5	360	40.5	35.6	82.7
2019	109	1600	26.0	29.2	32.5	008	40.3	36.0	84.5
2019	109	1500	27.6	30.7	31.9	005	39.7	36.6	88.4
2019	109	1400	27.0	30.5	31.5	359	39.4	36.7	90.1
2019	109	1300	29.7	32.1	34.4	356	39.2	36.7	90.8
2019	109	1200	30.1	33.8	37.5	359	39.4	36.9	90.8
2019	109	1100	28.4	32.9	35.0	356	39.6	37.5	92.2
2019	109	1000	23.7	30.3	32.7	001	39.7	37.9	92.9
2019	109	0900	28.6	32.1	34.0	357	39.6	37.7	93.1

Note: Peak wind is max wind gust during entire hour

Click here for today's 2-minute data: 20190420.04t.txt, data format (metadata)
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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 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