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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 7:50 pm CST on 12/03/2020 (DOY 339 01:50 GMT)
(Updated at about 06,21,36,51 minutes past the hour)
Wind Speed:   19.4 kts   (10.0 m/s)
Max Wind Speed:   21.8 kts   (11.2 m/s)
Wind Direction:   251° (WSW)
Air Temperature:   41.0 °F   (5.0 °C)
Dew Point:   28.8 °F   (-1.8 °C)
Relative Humidity:   61.6 %
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
%
20203381900 18.3 21.2 29.0 251 41.9 -99.0 27.8 57.0
20203381800 18.5 21.8 27.6 240 42.4 -99.0 29.1 58.9
20203381700 17.3 21.0 26.6 234 43.0 -99.0 29.7 59.0
20203381600 18.9 21.8 26.6 253 44.1 -99.0 29.1 55.2
20203381500 19.2 21.6 26.0 270 45.5 -99.0 28.7 51.4
20203381400 15.9 17.9 21.0 273 44.8 -99.0 29.2 54.0
20203381300 19.2 21.2 25.7 259 44.8 -99.0 27.4 50.2
20203381200 17.1 19.8 28.6 246 41.7 -99.0 26.3 53.9
20203381100 20.2 23.5 27.8 257 38.5 27.7 27.3 63.7
20203381000 13.2 17.1 24.5 244 36.1 26.8 25.8 65.8
20203380900 16.3 17.9 17.9 267 33.4 22.2 24.6 69.7
20203380800 8.2 9.5 19.4 231 35.2 28.0 26.0 68.7
20203380700 12.8 14.8 16.1 262 34.5 24.9 24.2 65.6
20203380600 16.3 18.7 20.8 247 36.1 25.7 23.7 60.4
20203380500 10.1 12.1 17.9 259 36.1 28.1 23.1 58.7
20203380400 6.6 8.9 15.9 237 38.3 32.7 24.6 57.5
20203380300 11.3 12.8 16.5 245 36.5 28.1 22.3 56.0
20203380200 9.3 11.3 16.5 269 36.0 28.3 22.6 58.0
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: 20201204.04t.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