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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 11:50 pm CDT on 09/30/2016 (DOY 275 04:50 GMT)
(Updated at about 07,22,37,52 minutes past the hour)
Wind Speed:   15.6 kts   (8.0 m/s)
Max Wind Speed:   17.1 kts   (8.8 m/s)
Wind Direction:   80° (E)
Air Temperature:   63.1 °F   (17.3 °C)
Dew Point:   58.4 °F   (14.7 °C)
Relative Humidity:   84.3 %
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] [Live Webcam Image from Chicago, IL Met Station] [Live Webcam Image from Chicago, IL Met Station]
6-hr animations: 1  2  3

Previous 24 images
(top of hour only): 1  2  3

All Images (past 14 days)

Nearby Webcams (external sites):
Chicago, facing east courtesy of LakeVision.com
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
Speed
kts		 Wind
Gust
kts		 Peak
Wind
kts		 Wind
Dir
deg		 Air
Temp
deg F		 Dew
Point
deg F		 Rel
Hum
%
20162742300 16.1 17.5 19.1 079 63.1 57.9 82.9
20162742200 16.1 17.1 21.0 062 63.7 59.1 84.9
20162742100 16.3 18.5 20.8 065 63.9 59.0 84.0
20162742000 17.7 18.7 22.7 067 63.7 58.6 83.3
20162741900 19.1 22.2 24.7 071 63.9 58.7 83.1
20162741800 17.9 19.1 23.7 058 64.2 59.3 83.9
20162741700 20.0 22.9 24.5 047 64.0 59.3 84.5
20162741600 20.4 21.6 25.5 035 64.0 59.7 85.5
20162741500 20.0 21.8 23.5 045 64.2 59.8 85.2
20162741400 19.8 21.8 24.3 033 64.2 59.8 85.5
20162741300 20.0 21.6 22.4 045 64.0 59.6 85.3
20162741200 20.8 23.1 23.9 059 64.0 59.2 84.0
20162741100 24.3 26.8 29.2 049 63.7 60.0 87.5
20162741000 22.4 25.5 29.0 050 63.5 60.1 88.4
20162740900 23.7 26.0 28.4 050 63.7 60.1 87.8
20162740800 20.6 22.6 27.8 037 63.9 59.3 85.0
20162740700 20.2 22.9 23.7 046 63.7 59.1 84.8
20162740600 22.2 22.9 23.9 042 63.9 59.2 84.5
Note: Peak wind is max wind gust during entire hour

      Click here for today's 2-minute data: 20161001.04t.txt, data format (metadata)
      Click here for past data: 2016 | 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 / WES.
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
» Additional Great Lakes WebCams from GLIN
» GLIN: Great Lakes Information Network