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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 12:38 pm CST on 01/17/2025 (DOY 017 18:38 GMT)
(Updated every 15 minutes)
Wind Speed:   42.8 kts   (22.0 m/s)   STORM
Max Wind Speed:   49.4 kts   (25.4 m/s)   STORM
Wind Direction:   201° (SSW)
Air Temperature:   48.7 °F   (9.3 °C)
Dew Point:   35.0 °F   (1.6 °C)
Relative Humidity:   58.6 %
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 every 30 minutes)

[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]

18-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
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
%
20250171200 41.4 50.3 50.3 207 48.2 -99.0 34.7 59.2
20250171100 30.1 33.6 42.2 195 44.2 -99.0 33.9 66.8
20250171000 32.1 36.2 41.6 198 42.3 -99.0 34.1 72.5
20250170900 28.2 30.1 40.0 186 38.3 25.7 35.2 88.6
20250170800 24.5 26.2 34.4 181 37.4 25.3 35.5 92.9
20250170700 21.2 22.7 27.8 180 36.1 24.4 35.4 97.0
20250170600 22.0 23.5 26.4 181 36.7 24.9 34.4 91.2
20250170500 18.7 20.0 23.3 191 37.0 26.2 34.1 88.9
20250170400 19.8 21.0 21.0 191 38.5 27.8 34.7 86.2
20250170300 12.8 14.0 20.4 206 38.8 30.4 34.3 83.7
20250170200 13.4 14.4 15.6 207 38.5 29.8 33.5 82.2
20250170100 11.7 12.1 15.2 207 39.6 31.8 32.7 76.3
20250170000 15.0 16.3 16.3 249 40.1 -99.0 30.7 68.8
20250162300 11.5 13.2 16.5 262 41.5 -99.0 32.6 70.1
20250162200 14.0 15.9 17.1 254 40.6 -99.0 31.2 68.6
20250162100 10.5 11.5 17.3 259 41.2 -99.0 30.0 64.1
20250162000 10.3 11.9 16.3 266 41.2 -99.0 30.3 64.8
20250161900 9.9 11.3 14.8 286 41.7 -99.0 30.5 64.0
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: 20250117.04t.txt.txt, data format (metadata)
      right arrow Click here for past data: 2025 | 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