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 4:06 pm CDT on 07/15/2019 (DOY 196 21:06 GMT)
(Updated at about 08,23,38,53 minutes past the hour)

Wind Speed:	23.1 kts (11.9 m/s)
Max Wind Speed:	26.8 kts (13.8 m/s)
Wind Direction:	219° (SW)
Air Temperature:	88.0 °F (31.1 °C)
Dew Point:	64.5 °F (18.1 °C)
Relative Humidity:	45.1 %
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	196	1600	18.5	20.6	26.8	202	87.6	64.9	46.2
2019	196	1500	20.6	22.9	28.2	228	88.0	64.6	45.2
2019	196	1400	19.1	22.6	27.8	223	87.3	63.4	44.3
2019	196	1300	16.5	19.1	28.0	209	85.5	64.6	49.0
2019	196	1200	10.5	12.8	18.7	250	85.1	64.8	50.1
2019	196	1100	12.2	13.2	20.6	271	83.1	64.0	51.9
2019	196	1000	20.6	22.9	22.9	263	82.0	63.9	53.6
2019	196	0900	17.1	20.0	23.5	252	80.2	66.1	61.5
2019	196	0800	18.7	22.2	22.2	259	79.2	67.6	67.2
2019	196	0700	15.0	16.7	22.9	253	78.1	69.7	75.1
2019	196	0600	15.2	18.9	24.3	244	79.2	70.0	73.1
2019	196	0500	12.2	13.0	21.0	205	77.5	70.5	78.7
2019	196	0400	10.1	11.9	15.9	246	79.7	69.9	71.5
2019	196	0300	9.3	10.3	14.0	203	78.4	69.9	74.6
2019	196	0200	11.3	11.7	15.0	188	77.0	72.0	84.4
2019	196	0100	6.4	7.6	13.6	133	73.8	72.5	95.9
2019	196	0000	5.2	5.4	8.4	154	74.5	70.6	87.5
2019	195	2300	0.4	1.2	5.4	191	73.9	70.2	87.9

Note: Peak wind is max wind gust during entire hour

Click here for today's 2-minute data: 20190715.04t.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