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Realtime Great Lakes Weather Data and Marine Observations


CMAN and U.S. Coast Guard Stations

Station Labels = Latest Barometric Pressure
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 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 (131)
 (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            C     C  Deg  m/s  m/s  %   W/m2    mb     C    m    s 202613100001APNM4 29 6.0 999.9 170 2.1 2.6 999 9999.9 9999.9 99.9 99.9 99.9 99.99 99.99 202613100001ASBO1 9 999.9 999.9 80 1.0 1.5 999 9999.9 9999.9 99.9 99.9 99.9 99.99 99.99 202613100001BARN6 49 11.1 999.9 190 2.6 6.2 999 9999.9 1028.8 99.9 99.9 99.9 99.99 99.99 202613100001CBLO1 49 999.9 999.9 0 0.0 0.0 999 9999.9 9999.9 99.9 99.9 99.9 99.99 99.99 202613100001CHII2 19 12.6 2.7 130 6.2 6.7 999 9999.9 9999.9 99.9 99.9 99.9 99.99 99.99 202613100001CLSM4 39 14.9 999.9 0 0.0 5.1 999 9999.9 1019.3 99.9 99.9 99.9 99.99 99.99 202613100001DBLN6 49 999.9 999.9 230 6.7 7.7 999 9999.9 1019.7 99.9 99.9 99.9 99.99 99.99 202613100001HHLO1 49 13.8 999.9 100 1.5 2.1 999 9999.9 9999.9 99.9 99.9 99.9 99.99 99.99 202613100001MCYI3 19 15.0 -5.4 40 0.5 1.0 999 9999.9 1018.8 99.9 99.9 99.9 99.99 99.99 202613100001MKGM4 19 9.7 0.6 240 4.6 5.1 999 9999.9 1019.3 99.9 99.9 99.9 99.99 99.99 202613100001MLWW3 19 11.4 999.9 150 4.1 5.1 999 9999.9 9999.9 99.9 99.9 99.9 99.99 99.99 202613100001OLCN6 59 10.8 999.9 260 5.7 7.2 999 9999.9 1009.5 99.9 99.9 99.9 99.99 99.99 202613100001PILM4 09 999.9 999.9 270 2.1 2.1 999 9999.9 1023.1 99.9 99.9 99.9 99.99 99.99 202613100001PWAW3 19 15.4 0.8 330 4.1 99.9 999 9999.9 998.0 99.9 99.9 99.9 99.99 99.99 202613100001ROAM4 09 4.5 999.9 270 3.1 3.6 999 9999.9 1024.6 99.9 99.9 99.9 99.99 99.99 202613100001RPRN6 59 12.6 999.9 290 5.7 6.7 999 9999.9 1009.8 99.9 99.9 99.9 99.99 99.99 202613100001SBIO1 49 12.8 999.9 120 5.1 5.7 999 9999.9 1019.2 99.9 99.9 99.9 99.99 99.99 202613100001SBLM4 29 999.9 999.9 360 7.7 8.7 999 9999.9 9999.9 99.9 99.9 99.9 99.99 99.99 202613100001SGNW3 19 6.5 999.9 10 7.7 8.7 999 9999.9 1019.8 99.9 99.9 99.9 99.99 99.99 202613100001STDM4 09 3.3 -0.1 999 99.9 10.3 999 9999.9 1022.0 99.9 99.9 99.9 99.99 99.99 202613100001TWCO1 49 13.9 3.7 999 99.9 99.9 999 9999.9 9999.9 99.9 99.9 99.9 99.99 99.99 202613100001WCRP1 49 12.7 999.9 180 1.0 1.0 999 9999.9 9999.9 99.9 99.9 99.9 99.99 99.99 202613100051CYGM4 29 8.1 -5.4 280 6.2 11.8 999 9999.9 1020.0 99.9 99.9 99.9 99.99 99.99 202613100051PWAW3 19 15.3 1.1 320 5.1 99.9 999 9999.9 998.0 99.9 99.9 99.9 99.99 99.99 202613100101APNM4 29 6.1 999.9 180 1.5 2.6 999 9999.9 9999.9 99.9 99.9 99.9 99.99 99.99 202613100101CYGM4 29 8.0 -5.9 290 6.2 12.9 999 9999.9 1020.0 99.9 99.9 99.9 99.99 99.99 202613100101MLWW3 19 9.9 999.9 130 5.1 5.7 999 9999.9 9999.9 99.9 99.9 99.9 99.99 99.99 202613100101PWAW3 19 15.3 0.0 0 0.0 99.9 999 9999.9 998.0 99.9 99.9 99.9 99.99 99.99 202613100101TWCO1 49 14.2 3.3 999 99.9 99.9 999 9999.9 9999.9 99.9 99.9 99.9 99.99 99.99 202613100101VRMO1 9 999.9 999.9 60 2.6 3.1 999 9999.9 9999.9 99.9 99.9 99.9 99.99 99.99 202613100151CYGM4 29 7.9 -5.8 290 9.8 99.9 999 9999.9 1020.0 99.9 99.9 99.9 99.99 99.99
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