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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. See also rtmon status, webcam status

NOTICE: Sep 13, 2021. Communication with the CHI met station is spotty. Data acquisition may be intermittent.
Conditions at 3:20 pm CDT on 09/18/2021 (DOY 261 20:20 GMT)
(Updated at about 06,21,36,51 minutes past the hour)
Wind Speed:   9.1 kts   (4.7 m/s)
Max Wind Speed:   10.3 kts   (5.3 m/s)
Wind Direction:   19° (NNE)
Air Temperature:   69.8 °F   (21.0 °C)
Dew Point:   61.1 °F   (16.2 °C)
Relative Humidity:   73.5 %
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
%
20212611500 9.9 10.5 11.1 023 69.6 60.8 73.1
20212611400 11.3 12.2 12.4 019 69.3 60.0 72.0
20212611300 12.6 14.0 14.2 016 69.3 60.5 73.4
20212611200 9.5 10.3 14.6 027 69.1 64.0 83.5
20212611100 8.7 9.5 12.1 044 69.1 65.2 87.1
20212611000 12.4 14.0 14.0 045 69.4 65.9 88.4
20212610900 14.2 16.5 17.1 055 69.8 65.7 86.5
20212610800 16.5 17.9 19.4 038 69.4 64.9 85.3
20212610700 15.9 17.9 19.6 029 69.6 65.6 86.9
20212610600 15.0 15.9 18.7 029 70.3 61.1 72.2
20212610500 15.7 17.3 18.9 022 70.7 61.9 73.2
20212610400 16.1 17.7 19.4 016 70.9 60.5 69.4
20212610300 18.1 18.9 20.0 020 70.7 62.3 74.4
20212610200 16.3 19.1 19.8 013 71.1 63.9 77.9
20212610100 20.8 23.5 23.5 017 71.6 64.7 78.6
20212610000 20.4 23.1 25.1 004 71.8 66.6 83.6
20212602300 20.8 23.5 24.3 000 72.9 67.7 83.6
20212602200 12.4 13.2 24.1 323 73.6 67.4 80.7
Note: Peak wind is max wind gust during entire hour

      right arrow Click here for today's 2-minute data: 20210918.04t.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