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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 9:06 pm CST on 01/30/2023 (DOY 031 03:06 GMT)
(Updated every 15 minutes)
Wind Speed:   15.2 kts   (7.8 m/s)
Max Wind Speed:   17.5 kts   (9.0 m/s)
Wind Direction:   317° (NW)
Air Temperature:   9.5 °F   (-12.5 °C)
Wind Chill:   -8.4 °F   (-22.5 °C)
Dew Point:   -6.9 °F   (-21.6 °C)
Relative Humidity:   47.0 %
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 every 30 minutes)
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
%
20230302100 15.0 17.3 17.5 314 9.3 -8.6 -7.4 46.3
20230302000 17.1 19.4 19.8 317 9.3 -9.6 -7.9 45.2
20230301900 14.0 16.5 20.6 317 9.9 -7.3 -8.4 43.2
20230301800 14.4 15.6 19.8 306 11.3 -5.7 -5.1 47.3
20230301700 12.8 17.1 19.4 298 12.0 -3.9 -5.7 44.6
20230301600 9.3 14.8 16.3 310 13.1 -0.2 -2.1 50.3
20230301500 12.8 15.4 16.1 311 12.7 -3.0 -2.4 50.4
20230301400 15.6 16.9 17.9 298 12.7 -4.4 -1.9 51.7
20230301300 10.1 11.7 17.5 325 12.9 -1.0 -0.1 55.7
20230301200 14.6 16.5 18.9 315 12.6 -4.2 -0.2 56.3
20230301100 12.2 14.6 16.9 312 11.8 -3.8 0.0 58.8
20230301000 11.7 14.0 18.7 319 11.8 -3.4 0.7 60.5
20230300900 13.6 16.7 19.2 321 12.2 -4.1 0.4 58.9
20230300800 13.8 15.6 18.7 312 12.4 -4.0 0.4 58.5
20230300700 13.6 17.1 19.2 325 13.6 -2.2 0.4 55.2
20230300600 13.4 15.2 20.0 314 14.2 -1.4 2.5 59.5
20230300500 11.9 14.0 15.9 318 15.3 0.8 8.9 75.7
20230300400 12.2 14.0 19.2 314 16.2 1.7 11.9 83.0
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 recent 2-minute daily data: 20230131.04t.txt.txt, data format (metadata)
      right arrow Click here for past data: 2023 | Archive

The NDBC station ID for this station is: CHII2
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

Contact:
General Information & Media Inquiries:
oar.glerl.www@noaa.gov
(734) 741-2235 		Data Inquiries:
oar.glerl.data@noaa.gov