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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 11:50 am CDT on 03/25/2023 (DOY 084 16:50 GMT)
(Updated every 15 minutes)
Wind Speed:   19.6 kts   (10.1 m/s)
Max Wind Speed:   22.2 kts   (11.4 m/s)
Wind Direction:   290° (WNW)
Air Temperature:   34.9 °F   (1.6 °C)
Wind Chill:   23.1 °F   (-4.9 °C)
Dew Point:   33.9 °F   (1.1 °C)
Relative Humidity:   96.2 %
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 CDT Wind
Spd
kts 		Wind
Gust
kts 		Peak
Wind
kts 		Wind
Dir
deg 		Air
Tmp
F 		Wind
Chill
F 		Dew
Pt
F 		Rel
Hum
%
20230841100 20.6 26.4 28.4 299 34.9 22.8 34.2 97.5
20230841000 19.2 22.6 26.2 308 34.9 23.2 34.6 98.8
20230840900 16.7 18.3 30.9 346 34.9 24.0 35.0 100.4
20230840800 17.3 18.7 19.8 004 35.2 24.3 35.3 100.4
20230840700 18.1 19.4 20.8 030 35.8 24.7 35.9 100.4
20230840600 13.6 15.0 19.2 034 36.0 26.4 36.1 100.4
20230840500 19.1 20.8 22.0 052 36.0 24.7 36.1 100.4
20230840400 22.6 24.9 24.9 047 35.8 23.5 35.9 100.4
20230840300 19.8 22.7 25.7 045 35.8 24.2 35.9 100.4
20230840200 21.2 22.7 26.0 055 36.0 24.1 36.1 100.4
20230840100 20.0 22.4 24.1 071 37.9 27.1 34.4 86.9
20230840000 15.9 17.9 22.9 077 38.5 28.9 34.7 86.2
20230832300 16.9 18.3 21.0 088 38.7 28.9 34.1 83.6
20230832200 13.6 15.6 22.2 096 39.0 30.4 35.1 85.8
20230832100 13.6 14.0 17.9 054 39.0 30.4 35.8 88.0
20230832000 13.4 14.4 15.7 047 38.8 30.2 35.9 89.0
20230831900 16.3 17.9 19.8 043 39.0 29.5 35.0 85.2
20230831800 15.2 16.5 19.8 033 38.8 29.6 33.3 80.2
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: 20230325.04t.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