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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.
Conditions at 6:20 pm CST on 12/16/2017 (DOY 351 00:20 GMT)
(Updated at about 08,23,38,53 minutes past the hour)
Wind Speed:   2.7 kts   (1.4 m/s)
Max Wind Speed:   3.7 kts   (1.9 m/s)
Wind Direction:   76° (ENE)
Air Temperature:   40.5 °F   (4.7 °C)
Dew Point:   36.8 °F   (2.7 °C)
Relative Humidity:   86.6 %
Data & Plots of Previous 3 Hours (2 minute increments)
Data & Plots of Previous 5 Days (hourly increments)
         1 Day Windrose Plot5 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 14 days)

Nearby Webcams (external sites):
Chicago, facing east courtesy of LakeVision.com
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
m/s
Wind
Gust
m/s
Peak
Wind
m/s
Wind
Dir
deg
Air
Tmp
C
Wind
Chill
C
Dew
Pt
C
Rel
Hum
%
20173501800 1.1 1.4 2.1 063 4.6 -99.0 2.8 88.2
20173501700 4.1 4.3 5.1 100 5.4 -99.0 0.8 72.1
20173501600 1.7 2.0 4.5 070 6.5 -99.0 -2.0 54.3
20173501500 2.3 2.5 3.3 070 5.1 -99.0 1.1 75.1
20173501400 2.7 2.9 3.5 190 6.9 -99.0 -3.1 48.9
20173501300 1.9 2.4 4.7 222 6.5 -99.0 -3.1 50.1
20173501200 2.6 3.4 3.4 212 5.4 -99.0 -2.9 55.2
20173501100 2.0 3.1 3.8 256 4.6 -99.0 -3.4 56.2
20173501000 5.1 5.9 8.4 227 3.7 -0.3 -3.2 60.6
20173500900 5.7 6.2 8.4 217 2.5 -2.1 -3.5 64.6
20173500800 7.2 8.1 10.6 191 2.4 -2.9 -3.4 65.5
20173500700 8.6 9.8 11.2 209 3.1 -2.5 -3.6 61.5
20173500600 9.2 10.3 10.6 209 3.4 -2.3 -3.5 60.6
20173500500 9.5 10.6 13.4 210 3.4 -2.4 -3.8 59.3
20173500400 10.3 11.6 13.3 211 3.5 -2.5 -3.9 58.4
20173500300 11.8 12.8 13.6 216 3.6 -2.7 -4.7 54.4
20173500200 9.4 11.1 14.4 209 3.6 -2.1 -5.0 53.2
20173500100 10.2 12.5 15.6 226 4.3 -1.4 -5.6 48.7
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: 20171217.04t.txt, data format (metadata)
      right arrow Click here for past data: 2017 | 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
» Additional Great Lakes WebCams from GLIN
» GLIN: Great Lakes Information Network