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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 (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 (339)
 (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 202533900001APNM4 29 17.6 999.9 240 8.0 99.9 999 9999.9 9999.9 99.9 99.9 99.9 202533900001ASBO1 9 999.9 999.9 30 2.9 7.0 999 9999.9 9999.9 99.9 99.9 99.9 202533900001BARN6 49 24.8 999.9 320 12.1 16.9 999 9999.9 30.64 99.9 99.9 99.9 202533900001CBLO1 49 999.9 999.9 350 4.1 6.0 999 9999.9 9999.9 99.9 99.9 99.9 202533900001CHII2 19 23.0 15.1 280 4.1 99.9 999 9999.9 9999.9 99.9 99.9 99.9 202533900001CLSM4 39 20.5 999.9 300 1.9 2.9 999 9999.9 30.33 99.9 99.9 99.9 202533900001CYGM4 29 18.7 8.2 230 9.9 23.9 999 9999.9 30.24 99.9 99.9 99.9 202533900001DBLN6 49 23.7 999.9 340 13.0 16.9 999 9999.9 30.32 99.9 99.9 99.9 202533900001HHLO1 49 21.6 999.9 80 4.1 4.1 999 9999.9 9999.9 99.9 99.9 99.9 202533900001MBRM4 29 999.9 999.9 999 99.9 99.9 999 9999.9 30.26 99.9 99.9 99.9 202533900001MBRM4 29 999.9 999.9 999 99.9 99.9 999 9999.9 30.26 99.9 99.9 99.9 202533900001MCYI3 19 23.5 13.6 180 11.1 99.9 999 9999.9 30.30 99.9 99.9 99.9 202533900001MKGM4 19 20.7 9.7 130 6.0 99.9 999 9999.9 30.30 99.9 99.9 99.9 202533900001MLWW3 19 14.2 999.9 230 6.0 99.9 999 9999.9 9999.9 99.9 99.9 99.9 202533900001NIAN6 59 999.9 999.9 999 99.9 99.9 999 9999.9 30.30 99.9 99.9 99.9 202533900001OBGN6 59 999.9 999.9 999 99.9 99.9 999 9999.9 30.31 99.9 99.9 99.9 202533900001OBGN6 59 999.9 999.9 999 99.9 99.9 999 9999.9 30.31 99.9 99.9 99.9 202533900001OLCN6 59 21.0 999.9 310 21.0 27.0 999 9999.9 30.05 99.9 99.9 99.9 202533900001PILM4 9 999.9 999.9 210 35.0 41.0 999 9999.9 29.94 99.9 99.9 99.9 202533900001PSTN6 49 999.9 999.9 999 99.9 99.9 999 9999.9 30.26 99.9 99.9 99.9 202533900001PSTN6 49 999.9 999.9 999 99.9 99.9 999 9999.9 30.26 99.9 99.9 99.9 202533900001PWAW3 19 14.9 999.9 270 4.1 99.9 999 9999.9 29.71 99.9 99.9 99.9 202533900001ROAM4 9 21.0 999.9 210 41.0 48.0 999 9999.9 29.90 99.9 99.9 99.9 202533900001RPRN6 59 21.4 999.9 330 16.9 99.9 999 9999.9 30.04 99.9 99.9 99.9 202533900001SBIO1 49 22.5 999.9 350 1.9 2.9 999 9999.9 30.34 99.9 99.9 99.9 202533900001SBLM4 29 999.9 999.9 220 12.1 15.9 999 9999.9 9999.9 99.9 99.9 99.9 202533900001SGNW3 19 14.7 -1.3 220 9.9 12.1 999 9999.9 30.27 99.9 99.9 99.9 202533900001STDM4 9 19.2 6.6 190 32.1 41.0 999 9999.9 30.01 99.9 99.9 99.9 202533900001SVNM4 19 22.5 999.9 110 8.0 99.9 999 9999.9 9999.9 99.9 99.9 99.9 202533900001THLO1 49 22.8 6.1 130 2.9 5.1 999 9999.9 30.29 99.9 99.9 99.9 202533900001TWCO1 49 21.9 11.8 999 99.9 99.9 999 9999.9 9999.9 99.9 99.9 99.9 202533900001TWCO1 49 21.9 11.5 999 99.9 99.9 999 9999.9 9999.9 99.9 99.9 99.9 202533900001TWCO1 49 21.9 11.3 999 99.9 99.9 999 9999.9 9999.9 99.9 99.9 99.9 202533900001VRMO1 9 999.9 999.9 170 1.9 4.1 999 9999.9 9999.9 99.9 99.9 99.9 202533900051CYGM4 29 18.7 8.1 220 18.1 26.0 999 9999.9 30.24 99.9 99.9 99.9 202533900051PWAW3 19 14.7 999.9 250 6.0 99.9 999 9999.9 29.71 99.9 99.9 99.9 202533900101APNM4 29 16.7 999.9 230 8.0 99.9 999 9999.9 9999.9 99.9 99.9 99.9 202533900101CYGM4 29 18.7 7.9 210 29.0 30.9 999 9999.9 30.24 99.9 99.9 99.9 202533900101MLWW3 19 14.2 999.9 230 6.0 99.9 999 9999.9 9999.9 99.9 99.9 99.9 202533900101PWAW3 19 14.7 999.9 240 9.9 99.9 999 9999.9 29.71 99.9 99.9 99.9 202533900101VRMO1 9 999.9 999.9 180 2.9 4.1 999 9999.9 9999.9 99.9 99.9 99.9 202533900151CYGM4 29 18.7 8.1 170 12.1 30.9 999 9999.9 30.24 99.9 99.9 99.9 202533900151PWAW3 19 14.7 999.9 260 12.1 99.9 999 9999.9 29.71 99.9 99.9 99.9
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