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Realtime Great Lakes Weather Data and Marine Observations


Surface Airways Stations

Station Labels = Latest Cloud Cover
Click on marker to view data for that station
or Hold Down Shift Key for Drag Zoom
Note: Only stations containing data for selected day are plotted
See also Surface Airways Stations not reporting today
Station Types
(Click on name to view all stations for that type)
White MarkerAll Stations 
Lt Blue MarkerBuoys 
Red MarkerCMAN & USCG Stations 
Yellow MarkerShip Reports 
Green MarkerSurface Airways Stations (15)

Gray MarkerReport > 3 Hours Old

  Station Labels: Off | ID | Name
  Air Temp | Wind Spd | Wind Dir
  Bar Press | Wave Hgt | Water Temp
  Cloud Cover

  Change Units to: English | Metric


 Enter New DOY (001-366):  Or Today (048)
 (See also Tables for determining DOY for a given date)
Metadata | Description of Measurements (NDBC)
All 9s in field = missing data
                                       Change Units to English | Metric
                         AIR   DEW WND  WND  WND CLD SOLAR   BAR    WAT  WAV  WAV -------GMT-              TMP   PT  DIR  SPD  GST CVR  RAD    PRES   TMP  HGT  PER YYYYDDDHHMM#ID            F     F  Deg  kts  kts  %   W/m2   inHg    F    ft   s 202604800456CGF 49 41.0 41.0 200 11.1 16.9 75 9999.9 29.97 99.9 99.9 99.9 202604800516CLE 49 42.8 39.2 200 14.0 22.0 100 9999.9 29.97 99.9 99.9 99.9 202604800516ERI 49 41.0 33.8 180 16.9 26.0 100 9999.9 29.97 99.9 99.9 99.9 202604800526TOL 49 48.2 44.6 190 8.0 16.9 0 9999.9 29.94 99.9 99.9 99.9 202604800536BKL 49 44.6 39.2 180 20.0 28.0 0 9999.9 29.97 99.9 99.9 99.9 202604800536DKK 49 42.8 33.8 190 13.0 21.0 100 9999.9 29.97 99.9 99.9 99.9 202604800536HZY 49 39.2 37.4 200 13.0 19.0 100 9999.9 29.97 99.9 99.9 99.9 202604800536TDZ 49 44.6 42.8 200 15.9 22.0 0 9999.9 29.97 99.9 99.9 99.9 202604800556DUH 49 48.2 44.6 210 7.0 14.0 0 9999.9 29.94 99.9 99.9 99.9 202604801356MGC 19 53.6 42.8 210 11.1 15.0 0 9999.9 29.94 99.9 99.9 99.9 202604801456CGF 49 42.8 41.0 210 11.1 15.0 100 9999.9 30.00 99.9 99.9 99.9 202604801516CLE 49 44.6 41.0 210 13.0 21.0 100 9999.9 30.00 99.9 99.9 99.9 202604801516ERI 49 41.0 37.4 180 14.0 23.9 100 9999.9 29.97 99.9 99.9 99.9 202604801526TOL 49 46.4 42.8 200 8.9 15.9 0 9999.9 29.97 99.9 99.9 99.9 202604801536BKL 49 44.6 41.0 180 14.0 22.0 100 9999.9 30.00 99.9 99.9 99.9 202604801536DKK 49 41.0 33.8 190 13.0 26.0 100 9999.9 29.97 99.9 99.9 99.9 202604801536LPR 49 42.8 39.2 210 11.1 20.0 75 9999.9 30.00 99.9 99.9 99.9 202604801536MDW 19 57.2 37.4 200 12.1 18.1 75 9999.9 29.91 99.9 99.9 99.9 202604801536TDZ 49 44.6 42.8 210 12.1 20.0 0 9999.9 29.97 99.9 99.9 99.9 202604801556MGC 19 53.6 42.8 200 11.1 15.9 50 9999.9 29.94 99.9 99.9 99.9 202604802156MGC 19 51.8 41.0 210 9.9 15.0 50 9999.9 29.94 99.9 99.9 99.9 202604802456CGF 49 42.8 41.0 210 11.1 15.9 100 9999.9 30.00 99.9 99.9 99.9 202604802506GYY 19 53.6 41.0 210 8.9 15.0 0 9999.9 29.94 99.9 99.9 99.9 202604802516ERI 49 42.8 37.4 190 15.9 23.9 100 9999.9 30.00 99.9 99.9 99.9 202604802536DKK 49 41.0 35.6 190 15.9 22.9 100 9999.9 29.97 99.9 99.9 99.9 202604802536MDW 19 53.6 39.2 210 13.0 20.0 75 9999.9 29.94 99.9 99.9 99.9 202604802556MGC 19 50.0 41.0 220 9.9 14.0 0 9999.9 29.97 99.9 99.9 99.9 202604803516ERI 49 42.8 37.4 190 15.0 26.0 100 9999.9 29.97 99.9 99.9 99.9 202604803516ORD 19 53.6 37.4 220 11.1 19.0 100 9999.9 29.91 99.9 99.9 99.9 202604803536BKL 49 46.4 41.0 190 12.1 22.9 0 9999.9 30.00 99.9 99.9 99.9 202604803536DKK 49 41.0 35.6 200 11.1 22.9 100 9999.9 29.97 99.9 99.9 99.9 202604803536MDW 19 51.8 39.2 220 8.0 18.1 75 9999.9 29.94 99.9 99.9 99.9 202604803566GNA 9 37.4 15.8 360 8.0 15.0 999 9999.9 29.94 99.9 99.9 99.9 202604804156GYY 19 51.8 41.0 210 7.0 14.0 100 9999.9 29.94 99.9 99.9 99.9
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