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Real-Time Meteorological Observation Network
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
Conditions at 3:20 pm CST on 02/20/2020 (DOY 051 21:20 GMT)
(Updated at about 06,21,36,51 minutes past the hour)
Wind Speed:   12.8 kts   (6.6 m/s)
Max Wind Speed:   14.4 kts   (7.4 m/s)
Wind Direction:   360° (N)
Air Temperature:   19.2 °F   (-7.1 °C)
Wind Chill:   5.3 °F   (-14.8 °C)
Dew Point:   4.3 °F   (-15.4 °C)
Relative Humidity:   52.0 %
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 CST Wind
Spd
kts 		Wind
Gust
kts 		Peak
Wind
kts 		Wind
Dir
deg 		Air
Tmp
F 		Wind
Chill
F 		Dew
Pt
F 		Rel
Hum
%
20200511500 10.5 12.2 15.2 355 18.7 6.0 3.3 50.8
20200511400 12.6 14.2 15.7 354 18.3 4.3 2.9 50.6
20200511300 16.3 18.3 18.5 358 17.8 1.8 0.9 47.2
20200511200 11.5 15.4 19.2 347 16.2 2.2 1.8 52.9
20200511100 12.6 14.2 17.7 338 16.2 1.5 3.2 56.3
20200511000 13.2 15.6 18.7 335 16.0 1.0 4.7 60.9
20200510900 12.4 13.8 17.9 328 13.3 -2.0 5.5 70.9
20200510800 11.5 13.4 15.6 319 12.2 -2.8 5.1 73.0
20200510700 12.6 14.4 15.9 311 12.4 -3.3 3.7 67.8
20200510600 12.8 14.8 17.3 312 13.5 -2.0 3.0 62.8
20200510500 13.4 15.0 16.5 312 14.2 -1.4 2.4 59.3
20200510400 17.5 19.8 19.8 315 15.6 -1.6 4.5 61.1
20200510300 19.1 22.6 23.3 327 17.1 -0.3 5.3 59.5
20200510200 18.1 20.6 23.5 333 18.5 2.0 4.1 53.2
20200510100 16.1 19.1 22.0 331 19.4 4.0 1.3 45.0
20200510000 14.0 16.5 19.8 319 20.5 6.4 -0.5 39.6
20200502300 16.1 17.5 19.1 312 20.7 5.6 -1.3 37.8
20200502200 14.6 16.5 18.7 319 21.6 7.5 -1.5 36.0
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: 20200220.04t.txt, data format (metadata)
      right arrow Click here for past data: 2020 | 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