Back to Met-ReCON Station Map
Alpena | Chicago | Michigan City | Milwaukee | Muskegon | Muskegon Pier Light | South Haven | Thunder Bay Island | Toledo Light #2

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 7:52 am CDT on 05/20/2025 (DOY 140 12:52 GMT)
(Updated every 15 minutes)
Wind Speed:   36.0 kts   (18.5 m/s)   GALE
Max Wind Speed:   39.5 kts   (20.3 m/s)   GALE
Wind Direction:   106° (ESE)
Air Temperature:   50.9 °F   (10.5 °C)
Dew Point:   48.7 °F   (9.3 °C)
Relative Humidity:   92.1 %
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 CDT Wind
Spd
kts 		Wind
Gust
kts 		Peak
Wind
kts 		Wind
Dir
deg 		Air
Tmp
F 		Dew
Pt
F 		Rel
Hum
%
20251400700 37.1 39.7 51.5 099 51.6 50.8 97.1
20251400600 24.1 25.7 42.6 106 54.0 53.4 97.9
20251400500 21.2 22.9 30.9 118 55.2 53.2 92.8
20251400400 16.5 18.7 22.4 106 54.7 52.6 92.6
20251400300 22.0 23.9 25.3 086 54.5 52.3 92.3
20251400200 24.5 27.6 28.2 086 55.2 52.6 90.7
20251400100 27.6 30.5 30.5 081 55.0 52.2 90.0
20251400000 28.8 31.1 33.8 070 54.5 52.1 91.5
20251392300 27.6 29.4 33.0 064 55.0 52.0 89.3
20251392200 27.6 31.3 33.4 061 55.0 52.5 91.1
20251392100 23.1 24.9 31.3 045 54.1 52.4 93.9
20251392000 21.2 23.7 25.5 009 51.4 51.0 98.2
20251391900 15.2 17.9 23.5 009 50.5 50.0 97.9
20251391800 22.2 24.3 25.9 022 49.1 48.9 99.3
20251391700 22.9 24.7 27.6 016 48.2 47.6 97.9
20251391600 20.2 21.6 25.7 015 47.7 47.3 98.6
20251391500 16.7 18.1 21.8 013 47.1 46.3 96.8
20251391400 18.1 19.1 22.2 355 46.8 45.9 96.6
Note: Peak wind is max wind gust during entire hour

      right arrow Click here for recent 2-minute daily data: 20250520.04t.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