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Realtime Great Lakes Weather Data and Marine Observations


CMAN and U.S. Coast Guard Stations

Station Labels = ID
Click on marker to view data for that station
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Note: Only stations containing data for selected day are plotted
See also CMAN 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 (21)
Yellow MarkerShip Reports 
Green MarkerSurface Airways Stations 

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 (207)
 (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 202620700001APNM4 29 73.8 999.9 0 0.0 1.0 999 9999.9 9999.9 99.9 99.9 99.9 202620700001ASBO1 9 999.9 999.9 260 5.1 6.0 999 9999.9 9999.9 99.9 99.9 99.9 202620700001BARN6 49 73.6 999.9 230 9.9 12.1 999 9999.9 9999.9 99.9 99.9 99.9 202620700001CBLO1 49 999.9 999.9 240 4.1 6.0 999 9999.9 9999.9 99.9 99.9 99.9 202620700001CHII2 19 76.1 68.9 200 11.1 13.0 999 9999.9 9999.9 99.9 99.9 99.9 202620700001CLSM4 39 79.3 999.9 170 4.1 8.0 999 9999.9 29.95 99.9 99.9 99.9 202620700001DBLN6 49 999.9 999.9 240 8.0 8.9 999 9999.9 29.96 99.9 99.9 99.9 202620700001HHLO1 49 76.5 999.9 80 5.1 6.0 999 9999.9 9999.9 99.9 99.9 99.9 202620700001MCYI3 19 75.0 70.3 210 9.9 11.1 999 9999.9 29.90 99.9 99.9 99.9 202620700001MKGM4 19 70.5 70.0 180 8.9 8.9 999 9999.9 29.91 99.9 99.9 99.9 202620700001MLWW3 19 78.4 999.9 270 4.1 6.0 999 9999.9 9999.9 99.9 99.9 99.9 202620700001OLCN6 59 73.0 999.9 100 2.9 4.1 999 9999.9 29.65 99.9 99.9 99.9 202620700001PILM4 9 999.9 999.9 210 7.0 12.1 999 9999.9 29.80 99.9 99.9 99.9 202620700001PWAW3 19 71.1 32.7 180 4.1 99.9 999 9999.9 29.29 99.9 99.9 99.9 202620700001ROAM4 9 63.0 999.9 260 28.0 28.0 999 9999.9 29.84 99.9 99.9 99.9 202620700001RPRN6 59 71.8 999.9 250 9.9 15.9 999 9999.9 29.71 99.9 99.9 99.9 202620700001SBIO1 49 75.7 999.9 999 99.9 99.9 999 9999.9 9999.9 99.9 99.9 99.9 202620700001SBLM4 29 999.9 999.9 220 7.0 8.0 999 9999.9 9999.9 99.9 99.9 99.9 202620700001SGNW3 19 69.6 68.0 170 16.9 18.1 999 9999.9 29.89 99.9 99.9 99.9 202620700001STDM4 9 69.6 66.2 999 99.9 8.0 999 9999.9 29.83 99.9 99.9 99.9 202620700001SVNM4 19 71.6 999.9 170 2.9 2.9 999 9999.9 9999.9 99.9 99.9 99.9 202620700001VRMO1 9 999.9 999.9 60 2.9 4.1 999 9999.9 9999.9 99.9 99.9 99.9 202620700001WCRP1 49 74.5 999.9 0 0.0 2.9 999 9999.9 9999.9 99.9 99.9 99.9 202620700051CYGM4 29 74.1 53.6 240 8.0 14.0 999 9999.9 29.88 99.9 99.9 99.9 202620700051PWAW3 19 70.9 32.4 170 1.9 99.9 999 9999.9 29.29 99.9 99.9 99.9 202620700101APNM4 29 73.9 999.9 0 0.0 0.0 999 9999.9 9999.9 99.9 99.9 99.9 202620700101CYGM4 29 74.1 54.1 240 8.0 8.9 999 9999.9 29.88 99.9 99.9 99.9 202620700101MKGM4 19 70.7 70.0 180 8.0 8.0 999 9999.9 29.91 99.9 99.9 99.9 202620700101MLWW3 19 78.4 999.9 250 5.1 7.0 999 9999.9 9999.9 99.9 99.9 99.9 202620700101PWAW3 19 71.1 32.0 0 0.0 99.9 999 9999.9 29.29 99.9 99.9 99.9 202620700101VRMO1 9 999.9 999.9 70 2.9 4.1 999 9999.9 9999.9 99.9 99.9 99.9 202620700151CYGM4 29 74.1 53.8 290 4.1 11.1 999 9999.9 29.88 99.9 99.9 99.9
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