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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
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 (30)
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 (108)
 (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 202610800001AGCM4 29 999.9 999.9 999 99.9 99.9 999 9999.9 1011.1 99.9 99.9 99.9 99.99 99.99 202610800001AGCM4 29 999.9 999.9 999 99.9 99.9 999 9999.9 1011.3 99.9 99.9 99.9 99.99 99.99 202610800001AGCM4 29 999.9 999.9 999 99.9 99.9 999 9999.9 1011.7 99.9 99.9 99.9 99.99 99.99 202610800001ALXN6 59 999.9 999.9 999 99.9 99.9 999 9999.9 1016.3 99.9 99.9 99.9 99.99 99.99 202610800001APNM4 29 7.3 999.9 140 8.2 99.9 999 9999.9 9999.9 99.9 99.9 99.9 99.99 99.99 202610800001ASBO1 9 999.9 999.9 70 2.6 3.1 999 9999.9 9999.9 99.9 99.9 99.9 99.99 99.99 202610800001BARN6 49 9.5 999.9 20 1.5 2.1 999 9999.9 1023.7 99.9 99.9 99.9 99.99 99.99 202610800001CBLO1 49 999.9 999.9 40 2.6 3.1 999 9999.9 9999.9 99.9 99.9 99.9 99.99 99.99 202610800001CHII2 19 21.1 15.2 170 12.3 99.9 999 9999.9 9999.9 99.9 99.9 99.9 99.99 99.99 202610800001CLSM4 39 13.3 999.9 140 4.1 5.1 999 9999.9 1012.2 99.9 99.9 99.9 99.99 99.99 202610800001DBLN6 49 999.9 999.9 60 2.6 2.6 999 9999.9 1014.6 99.9 99.9 99.9 99.99 99.99 202610800001FAIO1 49 999.9 999.9 999 99.9 99.9 999 9999.9 1012.9 99.9 99.9 99.9 99.99 99.99 202610800001FAIO1 49 999.9 999.9 999 99.9 99.9 999 9999.9 1013.0 99.9 99.9 99.9 99.99 99.99 202610800001FAIO1 49 999.9 999.9 999 99.9 99.9 999 9999.9 1013.1 99.9 99.9 99.9 99.99 99.99 202610800001GDMM5 09 999.9 999.9 999 99.9 99.9 999 9999.9 997.2 99.9 99.9 99.9 99.99 99.99 202610800001GDMM5 09 999.9 999.9 999 99.9 99.9 999 9999.9 997.4 99.9 99.9 99.9 99.99 99.99 202610800001GDMM5 09 999.9 999.9 999 99.9 99.9 999 9999.9 997.6 99.9 99.9 99.9 99.99 99.99 202610800001HHLO1 49 11.7 999.9 80 9.8 12.9 999 9999.9 9999.9 99.9 99.9 99.9 99.99 99.99 202610800001MBRM4 29 999.9 999.9 999 99.9 99.9 999 9999.9 1010.0 99.9 99.9 99.9 99.99 99.99 202610800001MBRM4 29 999.9 999.9 999 99.9 99.9 999 9999.9 1010.2 99.9 99.9 99.9 99.99 99.99 202610800001MBRM4 29 999.9 999.9 999 99.9 99.9 999 9999.9 1010.4 99.9 99.9 99.9 99.99 99.99 202610800001MCGM4 09 999.9 999.9 999 99.9 99.9 999 9999.9 1001.5 99.9 99.9 99.9 99.99 99.99 202610800001MCGM4 09 999.9 999.9 999 99.9 99.9 999 9999.9 1001.6 99.9 99.9 99.9 99.99 99.99 202610800001MCGM4 09 999.9 999.9 999 99.9 99.9 999 9999.9 1001.8 99.9 99.9 99.9 99.99 99.99 202610800001MCYI3 19 25.5 16.7 170 7.7 99.9 999 9999.9 1003.3 99.9 99.9 99.9 99.99 99.99 202610800001MKGM4 19 16.3 10.4 280 1.0 99.9 999 9999.9 1005.8 99.9 99.9 99.9 99.99 99.99 202610800001MLWW3 19 13.0 999.9 140 7.2 99.9 999 9999.9 9999.9 99.9 99.9 99.9 99.99 99.99 202610800001NIAN6 59 999.9 999.9 999 99.9 99.9 999 9999.9 1014.7 99.9 99.9 99.9 99.99 99.99 202610800001OBGN6 59 999.9 999.9 999 99.9 99.9 999 9999.9 1016.3 99.9 99.9 99.9 99.99 99.99 202610800001OBGN6 59 999.9 999.9 999 99.9 99.9 999 9999.9 1016.4 99.9 99.9 99.9 99.99 99.99 202610800001OLCN6 59 6.7 999.9 90 4.1 5.1 999 9999.9 1005.8 99.9 99.9 99.9 99.99 99.99 202610800001PILM4 09 999.9 999.9 270 12.3 13.9 999 9999.9 999.0 99.9 99.9 99.9 99.99 99.99 202610800001PSTN6 49 999.9 999.9 999 99.9 99.9 999 9999.9 1014.3 99.9 99.9 99.9 99.99 99.99 202610800001PSTN6 49 999.9 999.9 999 99.9 99.9 999 9999.9 1014.4 99.9 99.9 99.9 99.99 99.99 202610800001PSTN6 49 999.9 999.9 999 99.9 99.9 999 9999.9 1014.5 99.9 99.9 99.9 99.99 99.99 202610800001PWAW3 19 12.3 999.9 240 1.0 99.9 999 9999.9 984.0 99.9 99.9 99.9 99.99 99.99 202610800001ROAM4 09 8.3 999.9 70 10.3 10.3 999 9999.9 997.7 99.9 99.9 99.9 99.99 99.99 202610800001RPRN6 59 11.3 999.9 60 1.5 99.9 999 9999.9 1007.8 99.9 99.9 99.9 99.99 99.99 202610800001SBIO1 49 11.4 999.9 80 6.2 7.2 999 9999.9 1011.8 99.9 99.9 99.9 99.99 99.99 202610800001SBLM4 29 999.9 999.9 170 8.2 8.2 999 9999.9 9999.9 99.9 99.9 99.9 99.99 99.99 202610800001SGNW3 19 15.7 15.2 260 6.7 7.7 999 9999.9 1005.3 99.9 99.9 99.9 99.99 99.99 202610800001THLO1 49 10.8 8.1 100 9.8 10.8 999 9999.9 1010.4 99.9 99.9 99.9 99.99 99.99 202610800001TWCO1 49 11.9 10.4 999 99.9 99.9 999 9999.9 9999.9 99.9 99.9 99.9 99.99 99.99 202610800001TWCO1 49 11.9 10.5 999 99.9 99.9 999 9999.9 9999.9 99.9 99.9 99.9 99.99 99.99 202610800001VRMO1 9 999.9 999.9 80 5.7 6.2 999 9999.9 9999.9 99.9 99.9 99.9 99.99 99.99 202610800051CYGM4 29 20.5 5.8 170 7.2 11.3 999 9999.9 1005.0 99.9 99.9 99.9 99.99 99.99 202610800051PWAW3 19 12.8 999.9 300 8.2 99.9 999 9999.9 984.0 99.9 99.9 99.9 99.99 99.99 202610800101APNM4 29 7.4 999.9 140 6.7 99.9 999 9999.9 9999.9 99.9 99.9 99.9 99.99 99.99 202610800101CYGM4 29 20.2 6.1 140 9.3 11.3 999 9999.9 1005.0 99.9 99.9 99.9 99.99 99.99 202610800101MKGM4 19 15.0 9.5 310 1.0 99.9 999 9999.9 1005.9 99.9 99.9 99.9 99.99 99.99 202610800101MLWW3 19 11.7 999.9 140 6.7 99.9 999 9999.9 9999.9 99.9 99.9 99.9 99.99 99.99 202610800101PWAW3 19 13.3 999.9 320 6.2 99.9 999 9999.9 984.0 99.9 99.9 99.9 99.99 99.99 202610800101VRMO1 9 999.9 999.9 80 5.7 6.2 999 9999.9 9999.9 99.9 99.9 99.9 99.99 99.99 202610800151CYGM4 29 20.1 6.2 150 8.2 11.8 999 9999.9 1005.0 99.9 99.9 99.9 99.99 99.99
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