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Realtime Great Lakes Weather Data and Marine Observations


CMAN and U.S. Coast Guard Stations

Station Labels = Name
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 (28)
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 (014)
 (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 202601400001APNM4 29 2.7 999.9 270 4.1 99.9 999 9999.9 9999.9 99.9 99.9 99.9 99.99 99.99 202601400001ASBO1 9 999.9 999.9 220 5.7 7.2 999 9999.9 9999.9 99.9 99.9 99.9 99.99 99.99 202601400001BARN6 49 8.1 999.9 190 9.8 16.5 999 9999.9 1006.1 99.9 99.9 99.9 99.99 99.99 202601400001CBLO1 49 999.9 999.9 180 3.6 6.2 999 9999.9 9999.9 99.9 99.9 99.9 99.99 99.99 202601400001CHII2 19 7.9 2.3 260 14.4 99.9 999 9999.9 9999.9 99.9 99.9 99.9 99.99 99.99 202601400001CLSM4 39 6.0 999.9 220 5.1 9.3 999 9999.9 998.6 99.9 99.9 99.9 99.99 99.99 202601400001CYGM4 29 2.2 1.5 260 9.3 14.4 999 9999.9 992.0 99.9 99.9 99.9 99.99 99.99 202601400001DBLN6 49 999.9 999.9 220 10.8 15.9 999 9999.9 998.1 99.9 99.9 99.9 99.99 99.99 202601400001GDMM5 09 999.9 999.9 999 99.9 99.9 999 9999.9 994.2 99.9 99.9 99.9 99.99 99.99 202601400001GDMM5 09 999.9 999.9 999 99.9 99.9 999 9999.9 994.4 99.9 99.9 99.9 99.99 99.99 202601400001GDMM5 09 999.9 999.9 999 99.9 99.9 999 9999.9 994.6 99.9 99.9 99.9 99.99 99.99 202601400001HHLO1 49 6.7 999.9 220 13.4 19.0 999 9999.9 9999.9 99.9 99.9 99.9 99.99 99.99 202601400001MBRM4 29 999.9 999.9 999 99.9 99.9 999 9999.9 995.4 99.9 99.9 99.9 99.99 99.99 202601400001MBRM4 29 999.9 999.9 999 99.9 99.9 999 9999.9 995.5 99.9 99.9 99.9 99.99 99.99 202601400001MCGM4 09 999.9 999.9 999 99.9 99.9 999 9999.9 992.4 99.9 99.9 99.9 99.99 99.99 202601400001MCYI3 19 7.0 2.6 230 10.3 99.9 999 9999.9 9999.9 99.9 99.9 99.9 99.99 99.99 202601400001MKGM4 19 5.5 4.5 310 7.7 99.9 999 9999.9 996.9 99.9 99.9 99.9 99.99 99.99 202601400001MLWW3 19 10.1 999.9 300 3.6 99.9 999 9999.9 9999.9 99.9 99.9 99.9 99.99 99.99 202601400001NIAN6 59 999.9 999.9 999 99.9 99.9 999 9999.9 997.6 99.9 99.9 99.9 99.99 99.99 202601400001OBGN6 59 999.9 999.9 999 99.9 99.9 999 9999.9 998.3 99.9 99.9 99.9 99.99 99.99 202601400001OBGN6 59 999.9 999.9 999 99.9 99.9 999 9999.9 998.6 99.9 99.9 99.9 99.99 99.99 202601400001OLCN6 59 6.4 999.9 220 8.2 13.9 999 9999.9 988.1 99.9 99.9 99.9 99.99 99.99 202601400001PILM4 09 999.9 999.9 360 11.3 19.0 999 9999.9 994.1 99.9 99.9 99.9 99.99 99.99 202601400001PSTN6 49 999.9 999.9 999 99.9 99.9 999 9999.9 998.4 99.9 99.9 99.9 99.99 99.99 202601400001PSTN6 49 999.9 999.9 999 99.9 99.9 999 9999.9 998.5 99.9 99.9 99.9 99.99 99.99 202601400001PWAW3 19 8.0 999.9 280 8.2 99.9 999 9999.9 979.0 99.9 99.9 99.9 99.99 99.99 202601400001ROAM4 09 1.7 999.9 330 15.4 17.0 999 9999.9 995.1 99.9 99.9 99.9 99.99 99.99 202601400001RPRN6 59 7.7 999.9 220 8.2 99.9 999 9999.9 989.8 99.9 99.9 99.9 99.99 99.99 202601400001SBIO1 49 5.5 999.9 220 10.8 11.3 999 9999.9 1000.4 99.9 99.9 99.9 99.99 99.99 202601400001SBLM4 29 999.9 999.9 230 9.3 10.3 999 9999.9 9999.9 99.9 99.9 99.9 99.99 99.99 202601400001SGNW3 19 6.6 0.9 280 5.1 7.7 999 9999.9 997.8 99.9 99.9 99.9 99.99 99.99 202601400001STDM4 09 2.7 2.1 260 12.3 14.4 999 9999.9 991.2 99.9 99.9 99.9 99.99 99.99 202601400001THLO1 49 4.5 0.6 210 9.8 11.3 999 9999.9 998.9 99.9 99.9 99.9 99.99 99.99 202601400001TWCO1 49 5.7 2.0 999 99.9 99.9 999 9999.9 9999.9 99.9 99.9 99.9 99.99 99.99 202601400001TWCO1 49 5.8 2.0 999 99.9 99.9 999 9999.9 9999.9 99.9 99.9 99.9 99.99 99.99 202601400001VRMO1 9 999.9 999.9 220 8.7 13.4 999 9999.9 9999.9 99.9 99.9 99.9 99.99 99.99 202601400051CYGM4 29 2.2 1.5 280 12.9 14.9 999 9999.9 992.0 99.9 99.9 99.9 99.99 99.99 202601400051PWAW3 19 7.9 999.9 310 9.3 99.9 999 9999.9 979.0 99.9 99.9 99.9 99.99 99.99 202601400101APNM4 29 2.6 999.9 260 4.1 99.9 999 9999.9 9999.9 99.9 99.9 99.9 99.99 99.99 202601400101CYGM4 29 2.3 1.5 260 9.8 14.4 999 9999.9 992.0 99.9 99.9 99.9 99.99 99.99 202601400101MKGM4 19 6.1 4.5 330 7.7 99.9 999 9999.9 997.0 99.9 99.9 99.9 99.99 99.99 202601400101MLWW3 19 9.5 999.9 320 7.7 99.9 999 9999.9 9999.9 99.9 99.9 99.9 99.99 99.99 202601400101PWAW3 19 7.8 999.9 290 8.2 99.9 999 9999.9 979.0 99.9 99.9 99.9 99.99 99.99 202601400101VRMO1 9 999.9 999.9 220 9.3 15.9 999 9999.9 9999.9 99.9 99.9 99.9 99.99 99.99 202601400151CYGM4 29 2.3 1.5 270 5.1 12.9 999 9999.9 992.0 99.9 99.9 99.9 99.99 99.99 202601400151PWAW3 19 7.8 999.9 290 9.3 99.9 999 9999.9 979.0 99.9 99.9 99.9 99.99 99.99
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