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Realtime Great Lakes Weather Data and Marine Observations


CMAN and U.S. Coast Guard Stations

Station Labels = Latest Wind Speed
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 (27)
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 (347)
 (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 202534700001APNM4 29 -1.7 999.9 190 7.2 99.9 999 9999.9 9999.9 99.9 99.9 99.9 99.99 99.99 202534700001ASBO1 9 999.9 999.9 180 3.1 3.6 999 9999.9 9999.9 99.9 99.9 99.9 99.99 99.99 202534700001BARN6 49 -1.6 999.9 180 4.1 99.9 999 9999.9 1029.5 99.9 99.9 99.9 99.99 99.99 202534700001CBLO1 49 999.9 999.9 150 2.1 4.1 999 9999.9 9999.9 99.9 99.9 99.9 99.99 99.99 202534700001CHII2 19 -1.7 -6.2 250 8.2 99.9 999 9999.9 9999.9 99.9 99.9 99.9 99.99 99.99 202534700001CLSM4 39 -2.7 999.9 220 2.1 3.1 999 9999.9 1019.0 99.9 99.9 99.9 99.99 99.99 202534700001CYGM4 29 -2.2 -4.9 190 8.2 10.8 999 9999.9 1012.0 99.9 99.9 99.9 99.99 99.99 202534700001DBLN6 49 999.9 999.9 210 3.1 5.1 999 9999.9 1016.8 99.9 99.9 99.9 99.99 99.99 202534700001GDMM5 09 999.9 999.9 999 99.9 99.9 999 9999.9 1013.3 99.9 99.9 99.9 99.99 99.99 202534700001GDMM5 09 999.9 999.9 999 99.9 99.9 999 9999.9 1013.4 99.9 99.9 99.9 99.99 99.99 202534700001HHLO1 49 -1.9 999.9 210 2.1 3.1 999 9999.9 9999.9 99.9 99.9 99.9 99.99 99.99 202534700001MBRM4 29 999.9 999.9 999 99.9 99.9 999 9999.9 1015.7 99.9 99.9 99.9 99.99 99.99 202534700001MBRM4 29 999.9 999.9 999 99.9 99.9 999 9999.9 1015.8 99.9 99.9 99.9 99.99 99.99 202534700001MBRM4 29 999.9 999.9 999 99.9 99.9 999 9999.9 1015.9 99.9 99.9 99.9 99.99 99.99 202534700001MCYI3 19 -1.3 -3.4 200 5.1 99.9 999 9999.9 1018.4 99.9 99.9 99.9 99.99 99.99 202534700001MKGM4 19 -0.2 -5.1 250 10.3 99.9 999 9999.9 1015.5 99.9 99.9 99.9 99.99 99.99 202534700001MLWW3 19 -3.8 999.9 270 5.1 99.9 999 9999.9 9999.9 99.9 99.9 99.9 99.99 99.99 202534700001NIAN6 59 999.9 999.9 999 99.9 99.9 999 9999.9 1017.8 99.9 99.9 99.9 99.99 99.99 202534700001OBGN6 59 999.9 999.9 999 99.9 99.9 999 9999.9 1015.1 99.9 99.9 99.9 99.99 99.99 202534700001OBGN6 59 999.9 999.9 999 99.9 99.9 999 9999.9 1015.2 99.9 99.9 99.9 99.99 99.99 202534700001OLCN6 59 -1.7 999.9 250 6.7 8.7 999 9999.9 1008.5 99.9 99.9 99.9 99.99 99.99 202534700001PILM4 09 999.9 999.9 310 17.5 19.5 999 9999.9 1011.6 99.9 99.9 99.9 99.99 99.99 202534700001PSTN6 49 999.9 999.9 999 99.9 99.9 999 9999.9 1016.6 99.9 99.9 99.9 99.99 99.99 202534700001PWAW3 19 -3.9 999.9 260 6.2 99.9 999 9999.9 997.0 99.9 99.9 99.9 99.99 99.99 202534700001ROAM4 09 -11.8 999.9 300 15.9 17.5 999 9999.9 1013.1 99.9 99.9 99.9 99.99 99.99 202534700001RPRN6 59 -1.2 999.9 999 99.9 99.9 999 9999.9 1008.8 99.9 99.9 99.9 99.99 99.99 202534700001SBIO1 49 -1.4 999.9 220 4.1 4.6 999 9999.9 1019.6 99.9 99.9 99.9 99.99 99.99 202534700001SBLM4 29 999.9 999.9 200 7.7 8.2 999 9999.9 9999.9 99.9 99.9 99.9 99.99 99.99 202534700001SGNW3 19 -4.3 -8.3 230 7.2 8.7 999 9999.9 1016.0 99.9 99.9 99.9 99.99 99.99 202534700001STDM4 09 -4.8 -8.8 260 15.4 18.5 999 9999.9 1008.4 99.9 99.9 99.9 99.99 99.99 202534700001THLO1 49 -1.4 -7.1 220 6.2 7.2 999 9999.9 1017.9 99.9 99.9 99.9 99.99 99.99 202534700001TWCO1 49 -1.8 -5.8 999 99.9 99.9 999 9999.9 9999.9 99.9 99.9 99.9 99.99 99.99 202534700001TWCO1 49 -1.9 -5.8 999 99.9 99.9 999 9999.9 9999.9 99.9 99.9 99.9 99.99 99.99 202534700001TWCO1 49 -1.9 -5.9 999 99.9 99.9 999 9999.9 9999.9 99.9 99.9 99.9 99.99 99.99 202534700001VRMO1 9 999.9 999.9 200 2.1 2.6 999 9999.9 9999.9 99.9 99.9 99.9 99.99 99.99 202534700051CYGM4 29 -2.2 -4.8 200 9.3 10.3 999 9999.9 1012.0 99.9 99.9 99.9 99.99 99.99 202534700051PWAW3 19 -3.9 999.9 250 8.2 99.9 999 9999.9 997.0 99.9 99.9 99.9 99.99 99.99 202534700101APNM4 29 -1.8 999.9 200 7.2 99.9 999 9999.9 9999.9 99.9 99.9 99.9 99.99 99.99 202534700101CYGM4 29 -2.3 -4.6 200 8.2 12.9 999 9999.9 1012.0 99.9 99.9 99.9 99.99 99.99 202534700101MKGM4 19 -0.1 -4.9 260 11.8 99.9 999 9999.9 1015.5 99.9 99.9 99.9 99.99 99.99 202534700101MLWW3 19 -3.7 999.9 250 4.6 99.9 999 9999.9 9999.9 99.9 99.9 99.9 99.99 99.99 202534700101PWAW3 19 -3.9 999.9 250 4.1 99.9 999 9999.9 997.0 99.9 99.9 99.9 99.99 99.99 202534700101VRMO1 9 999.9 999.9 200 1.5 2.6 999 9999.9 9999.9 99.9 99.9 99.9 99.99 99.99 202534700151CYGM4 29 -2.4 -4.4 200 5.1 13.9 999 9999.9 1012.0 99.9 99.9 99.9 99.99 99.99 202534700151PWAW3 19 -3.9 999.9 280 5.1 99.9 999 9999.9 997.0 99.9 99.9 99.9 99.99 99.99
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