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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 6:36 pm CST on 01/20/2018 (DOY 021 00:36 GMT)
(Updated at about 08,23,38,53 minutes past the hour)
Wind Speed:   11.5 kts   (5.9 m/s)
Max Wind Speed:   12.4 kts   (6.4 m/s)
Wind Direction:   197° (SSW)
Air Temperature:   42.4 °F   (5.8 °C)
Dew Point:   36.8 °F   (2.7 °C)
Relative Humidity:   80.2 %
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 CST Wind
Spd
kts
Wind
Gust
kts
Peak
Wind
kts
Wind
Dir
deg
Air
Tmp
F
Wind
Chill
F
Dew
Pt
F
Rel
Hum
%
20180201800 13.0 13.8 13.8 201 43.9 -99.0 37.0 76.6
20180201700 9.7 10.1 14.2 201 45.9 -99.0 35.7 67.4
20180201600 8.4 9.1 15.0 210 45.3 -99.0 33.3 62.5
20180201500 10.9 11.9 15.7 211 46.2 -99.0 32.1 57.6
20180201400 11.9 12.8 15.0 218 44.4 -99.0 31.7 60.5
20180201300 9.9 12.2 15.4 210 41.9 -99.0 31.1 65.1
20180201200 12.1 13.2 14.2 250 41.9 -99.0 30.5 63.5
20180201100 3.9 4.7 14.2 197 40.6 -99.0 30.3 66.2
20180201000 2.7 4.5 9.3 203 38.5 36.5 30.1 71.6
20180200900 8.6 11.3 14.4 205 37.0 30.0 29.2 72.9
20180200800 16.1 18.7 18.7 212 36.0 25.6 28.4 73.7
20180200700 15.0 17.7 18.1 219 37.4 27.8 28.2 69.2
20180200600 15.7 21.0 21.0 222 39.6 30.4 28.7 64.8
20180200500 13.6 16.1 19.8 228 40.5 -99.0 28.3 61.5
20180200400 11.3 14.2 19.6 236 40.8 -99.0 28.0 59.9
20180200300 20.8 23.7 26.6 234 41.9 -99.0 27.8 56.9
20180200200 21.2 28.4 30.9 229 42.3 -99.0 27.6 55.7
20180200100 18.9 23.7 30.7 220 41.9 -99.0 27.8 57.1
Note: Peak wind is max wind gust during entire hour
Note: Wind chill is set to -99 if air temp > 40 F or wind speed < 3 mph

      right arrow Click here for today's 2-minute data: 20180121.04t.txt, data format (metadata)
      right arrow Click here for past data: 2018 | 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