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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. See also rtmon status, webcam status
Conditions at 11:20 am CDT on 08/02/2021 (DOY 214 16:20 GMT)
(Updated at about 06,21,36,51 minutes past the hour)
Wind Speed:   4.5 kts   (2.3 m/s)
Max Wind Speed:   6.8 kts   (3.5 m/s)
Wind Direction:   141° (SE)
Air Temperature:   73.0 °F   (22.8 °C)
Dew Point:   55.1 °F   (12.9 °C)
Relative Humidity:   52.9 %
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
[Live Webcam Image from Chicago, IL Met Station Camera 1]
[Live Webcam Image from Chicago, IL Met Station Camera 2]
[Live Webcam Image from Chicago, IL Met Station Camera 3]
6-hr animations: 1  2  3
Previous 48 images (top of hour only): 1  2  3
All Images (past 10 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] ----------
YEARDOY CDT Wind
Spd
kts 		Wind
Gust
kts 		Peak
Wind
kts 		Wind
Dir
deg 		Air
Tmp
F 		Dew
Pt
F 		Rel
Hum
%
20212141100 6.6 8.4 8.4 156 72.0 54.1 52.9
20212141000 8.2 11.7 11.7 168 70.9 53.4 53.5
20212140900 8.2 9.7 10.9 181 69.8 54.3 57.4
20212140800 9.5 10.3 11.3 186 68.9 55.2 61.2
20212140700 9.3 10.1 11.1 189 68.5 60.1 74.0
20212140600 7.6 10.5 11.9 158 68.7 58.5 69.6
20212140500 6.2 7.4 11.7 105 69.1 58.7 69.2
20212140400 8.9 9.7 10.9 081 69.6 59.3 69.2
20212140300 9.9 11.3 11.3 062 70.0 60.2 70.6
20212140200 11.3 13.0 14.0 046 70.0 61.2 73.4
20212140100 11.9 13.4 14.8 022 69.4 60.6 73.2
20212140000 14.2 17.5 17.5 012 69.1 59.1 70.2
20212132300 16.9 19.1 19.1 013 68.5 58.7 70.4
20212132200 19.1 20.6 21.0 006 68.7 56.1 63.7
20212132100 17.1 19.2 21.8 003 68.9 59.4 71.4
20212132000 20.0 21.2 22.2 013 68.9 58.2 68.4
20212131900 17.3 18.7 23.1 017 69.3 58.8 69.0
20212131800 16.1 17.9 20.2 008 69.4 57.4 65.2
Note: Peak wind is max wind gust during entire hour

      right arrow Click here for today's 2-minute data: 20210802.04t.txt, data format (metadata)
      right arrow Click here for past data: 2021 | 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

» NWS, Grand Rapids Office: Near-Realtime Marine Weather, includes current conditions and forecasts
» NWS, White Lake Office: Near-Realtime Marine Weather, includes current conditions and forecasts
» NDBC Great Lakes ImageMap showing U.S. and Canadian Buoys and C-MAN Stations
» NOAA CoastWatch Great Lakes NOAAPORT Data, includes all station types
» NOAA's NowCoast: Web mapping portal to real-time coastal observations
» Winds courtesy of iWindsurf.com
» NWS Great Lakes Marine Text Forecasts by Zone
» Links to Great Lakes Water Temperature, Wind/Wave Data, & Water Levels
» GLIN: Great Lakes Information Network