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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 4:50 am CDT on 08/20/2017 (DOY 232 09:50 GMT)
(Updated at about 08,23,38,53 minutes past the hour)
Wind Speed:   9.1 kts   (4.7 m/s)
Max Wind Speed:   10.1 kts   (5.2 m/s)
Wind Direction:   187° (S)
Air Temperature:   72.0 °F   (22.2 °C)
Dew Point:   62.5 °F   (16.9 °C)
Relative Humidity:   71.7 %
Data & Plots of Previous 3 Hours (2 minute increments)
Data & Plots of Previous 5 Days (hourly increments)
         1 Day Windrose Plot5 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 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
m/s
Wind
Gust
m/s
Peak
Wind
m/s
Wind
Dir
deg
Air
Temp
deg C
Dew
Point
deg C
Rel
Hum
%
20172320400 4.0 4.3 5.6 190 22.3 16.8 70.5
20172320300 3.6 3.9 4.7 193 22.6 16.2 66.9
20172320200 4.2 4.4 5.4 184 23.1 16.4 65.5
20172320100 4.3 4.5 4.7 175 23.3 16.0 63.2
20172320000 5.7 6.2 6.2 175 23.7 16.8 64.7
20172312300 4.0 4.3 6.0 172 23.6 17.3 67.4
20172312200 4.2 4.9 5.0 158 23.6 17.1 66.6
20172312100 5.0 5.3 5.4 136 23.7 16.5 63.7
20172312000 5.2 5.5 6.0 131 23.6 15.8 61.0
20172311900 4.4 4.7 5.4 125 24.1 16.8 63.1
20172311800 3.7 4.1 5.1 111 24.4 16.7 61.5
20172311700 4.7 5.1 5.6 125 24.1 16.2 60.9
20172311600 4.4 4.7 5.6 117 23.6 17.0 66.0
20172311500 3.7 4.1 5.2 106 22.7 17.3 71.0
20172311400 2.5 2.9 4.4 110 22.4 17.6 74.1
20172311300 1.0 1.2 3.0 080 22.1 17.5 74.8
20172311200 1.3 1.9 2.0 071 21.7 18.1 79.8
20172311100 0.5 0.8 2.9 002 21.3 17.6 79.1
Note: Peak wind is max wind gust during entire hour

      right arrow Click here for today's 2-minute data: 20170820.04t.txt, data format (metadata)
      right arrow Click here for past data: 2017 | 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
» Additional Great Lakes WebCams from GLIN
» GLIN: Great Lakes Information Network