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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 2:36 am CST on 12/18/2017 (DOY 352 08:36 GMT)
(Updated at about 08,23,38,53 minutes past the hour)
Wind Speed:   15.7 kts   (8.1 m/s)
Max Wind Speed:   19.4 kts   (10.0 m/s)
Wind Direction:   208° (SSW)
Air Temperature:   43.3 °F   (6.3 °C)
Dew Point:   40.1 °F   (4.5 °C)
Relative Humidity:   88.2 %
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
%
20173520200 15.0 17.1 22.4 207 43.9 -99.0 39.5 84.3
20173520100 14.8 16.3 18.3 206 43.9 -99.0 39.3 83.7
20173520000 11.9 13.0 21.2 208 44.4 -99.0 37.9 77.7
20173512300 8.6 10.3 15.0 200 43.5 -99.0 35.8 74.0
20173512200 5.1 6.8 9.5 218 45.3 -99.0 35.7 68.8
20173512100 0.2 1.9 6.2 285 44.6 -99.0 33.1 63.8
20173512000 1.9 2.3 4.9 164 42.4 -99.0 33.5 70.4
20173511900 1.9 2.1 2.7 240 43.2 -99.0 31.8 63.8
20173511800 0.2 0.8 2.7 116 39.7 39.7 36.5 88.2
20173511700 7.6 8.0 8.0 136 40.5 -99.0 34.6 79.4
20173511600 2.5 2.9 8.2 088 40.8 -99.0 32.8 72.8
20173511500 0.2 0.6 3.7 217 41.0 -99.0 32.7 72.1
20173511400 8.4 8.9 9.3 179 40.6 -99.0 31.3 69.0
20173511300 8.6 9.3 10.3 196 39.7 33.4 31.2 71.2
20173511200 5.4 6.8 12.8 173 37.2 32.3 32.1 81.6
20173511100 6.2 6.8 7.8 180 36.3 30.6 32.8 87.0
20173511000 5.1 5.4 8.0 139 38.1 33.6 32.9 81.3
20173510900 3.9 4.1 6.4 051 38.3 34.9 32.8 80.2
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: 20171218.04t.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