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Realtime Great Lakes Weather Data and Marine Observations

 GTLM4: NWS GrndTraverseLtMI                                  
CMAN Station
Lat: 45.21°, Lon: -85.55°
Elevation: 176 m
Anemometer Height: 16 m
Related Site: NDBC

Current Time: 2147 GMT
Station Types
(Click on name to view all stations for that type)
White MarkerAll Stations
Lt Blue MarkerBuoys
Red MarkerCMAN & USCG Stations
Yellow MarkerShip Reports
Green MarkerSurface Airways Stations

  Change Units to: English | Metric
 Enter New DOY (001-366):  Or Today (185)
 (See also Tables for determining DOY for a given date)
View multiple days of data for this station:
Select Year and Day of Year (DOY) range:
Year (4-digits):   First Day (001-366):   Last Day (001-366):  
Additional Data Archive: NDBC Historical Data

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
202518500001GTLM4   19  22.1 999.9  60  1.0  1.5 999 9999.9 1017.6 99.9 99.9 99.9             
202518500101GTLM4   19  21.8 999.9  70  0.5  1.0 999 9999.9 1017.9 99.9 99.9 99.9             
202518500201GTLM4   19  21.3 999.9  70  1.0  1.0 999 9999.9 1017.9 99.9 99.9 99.9             
202518500301GTLM4   19  20.4 999.9  90  0.5  1.0 999 9999.9 1017.6 99.9 99.9 99.9             
202518500401GTLM4   19  19.6 999.9   0  0.0  1.0 999 9999.9 1017.9 99.9 99.9 99.9             
202518500421GTLM4   19  19.6 999.9  70  0.5  2.1 999 9999.9 1017.9 99.9 99.9 99.9             
202518500501GTLM4   19  18.8 999.9  70  1.0  1.0 999 9999.9 1017.9 99.9 99.9 99.9             
202518501001GTLM4   19  18.3 999.9  70  1.0  1.5 999 9999.9 1017.9 99.9 99.9 99.9             
202518501101GTLM4   19  17.8 999.9  70  1.5  1.5 999 9999.9 1017.9 99.9 99.9 99.9             
202518501201GTLM4   19  17.4 999.9  80  1.5  1.5 999 9999.9 1017.9 99.9 99.9 99.9             
202518501301GTLM4   19  17.0 999.9  80  1.5  1.5 999 9999.9 1017.6 99.9 99.9 99.9             
202518501401GTLM4   19  16.5 999.9 120  1.5  2.1 999 9999.9 1017.9 99.9 99.9 99.9             
202518501421GTLM4   19  16.5 999.9 120  1.5  2.6 999 9999.9 1017.9 99.9 99.9 99.9             
202518501501GTLM4   19  16.2 999.9 140  2.1  2.6 999 9999.9 1017.9 99.9 99.9 99.9             
202518502001GTLM4   19  15.9 999.9 130  1.5  2.6 999 9999.9 1017.9 99.9 99.9 99.9             
202518502101GTLM4   19  15.7 999.9 130  1.5  2.6 999 9999.9 1017.9 99.9 99.9 99.9             
202518502201GTLM4   19  15.6 999.9 130  1.5  2.1 999 9999.9 1017.9 99.9 99.9 99.9             
202518502301GTLM4   19  15.5 999.9 130  2.1  2.1 999 9999.9 1018.3 99.9 99.9 99.9             
202518502401GTLM4   19  15.6 999.9 130  2.1  2.6 999 9999.9 1018.3 99.9 99.9 99.9             
202518502431GTLM4   19  15.6 999.9 130  2.1  2.6 999 9999.9 1018.3 99.9 99.9 99.9             
202518502501GTLM4   19  15.5 999.9 120  2.1  2.6 999 9999.9 1018.3 99.9 99.9 99.9             
202518503001GTLM4   19  15.5 999.9 130  2.1  2.6 999 9999.9 1018.3 99.9 99.9 99.9             
202518503101GTLM4   19  15.4 999.9 130  2.1  2.6 999 9999.9 1018.6 99.9 99.9 99.9             
202518503201GTLM4   19  15.4 999.9 140  1.5  2.6 999 9999.9 1019.0 99.9 99.9 99.9             
202518503301GTLM4   19  15.3 999.9 140  2.1  2.1 999 9999.9 1019.0 99.9 99.9 99.9             
202518503401GTLM4   19  15.4 999.9 140  1.5  2.1 999 9999.9 1019.0 99.9 99.9 99.9             
202518503431GTLM4   19  15.4 999.9 140  1.5  2.6 999 9999.9 1019.0 99.9 99.9 99.9             
202518503501GTLM4   19  15.3 999.9 140  1.5  2.1 999 9999.9 1019.0 99.9 99.9 99.9             
202518504001GTLM4   19  15.2 999.9 150  1.5  2.1 999 9999.9 1019.0 99.9 99.9 99.9             
202518504101GTLM4   19  15.0 999.9 140  2.1  2.6 999 9999.9 1019.0 99.9 99.9 99.9             
202518504201GTLM4   19  15.0 999.9 160  1.5  2.6 999 9999.9 1019.0 99.9 99.9 99.9             
202518504301GTLM4   19  15.0 999.9 150  2.1  2.6 999 9999.9 1019.0 99.9 99.9 99.9             
202518504401GTLM4   19  14.8 999.9 140  1.5  2.6 999 9999.9 1019.0 99.9 99.9 99.9             
202518504441GTLM4   19  14.8 999.9 130  1.5  2.6 999 9999.9 1018.6 99.9 99.9 99.9             
202518504501GTLM4   19  14.6 999.9 140  1.5  3.1 999 9999.9 1018.6 99.9 99.9 99.9             
202518505001GTLM4   19  14.5 999.9 140  1.5  3.1 999 9999.9 1018.6 99.9 99.9 99.9             
202518505101GTLM4   19  14.4 999.9 150  2.1  2.6 999 9999.9 1018.6 99.9 99.9 99.9             
202518505201GTLM4   19  14.5 999.9 130  1.5  2.6 999 9999.9 1018.3 99.9 99.9 99.9             
202518505301GTLM4   19  14.5 999.9 130  1.0  3.1 999 9999.9 1018.3 99.9 99.9 99.9             
202518505401GTLM4   19  14.8 999.9 140  2.1  3.1 999 9999.9 1018.3 99.9 99.9 99.9             
202518505441GTLM4   19  14.8 999.9 150  2.1  3.6 999 9999.9 1018.3 99.9 99.9 99.9             
202518505501GTLM4   19  15.1 999.9 150  2.1  3.6 999 9999.9 1018.3 99.9 99.9 99.9             
202518506001GTLM4   19  15.2 999.9 150  1.5  4.1 999 9999.9 1018.3 99.9 99.9 99.9             
202518506101GTLM4   19  15.3 999.9 160  1.5  3.1 999 9999.9 1018.3 99.9 99.9 99.9             
202518506201GTLM4   19  15.3 999.9 180  1.0  3.1 999 9999.9 1018.3 99.9 99.9 99.9             
202518506301GTLM4   19  15.4 999.9 170  2.1  3.6 999 9999.9 1018.3 99.9 99.9 99.9             
202518506401GTLM4   19  15.7 999.9 150  2.1  4.1 999 9999.9 1018.3 99.9 99.9 99.9             
202518506441GTLM4   19  15.7 999.9 150  1.5  4.1 999 9999.9 1018.3 99.9 99.9 99.9             
202518506501GTLM4   19  15.8 999.9 160  1.5  3.6 999 9999.9 1018.6 99.9 99.9 99.9             
202518507001GTLM4   19  15.8 999.9 150  1.5  3.6 999 9999.9 1018.6 99.9 99.9 99.9             
202518507101GTLM4   19  16.0 999.9 160  2.1  3.6 999 9999.9 1017.6 99.9 99.9 99.9             
202518507201GTLM4   19  16.2 999.9 160  2.1  4.1 999 9999.9 1018.6 99.9 99.9 99.9             
202518507301GTLM4   19  16.3 999.9 160  2.1  3.6 999 9999.9 1018.6 99.9 99.9 99.9             
202518507401GTLM4   19  16.3 999.9 150  2.1  4.6 999 9999.9 1018.6 99.9 99.9 99.9             
202518507451GTLM4   19  16.3 999.9 160  2.6  5.1 999 9999.9 1018.6 99.9 99.9 99.9             
202518507501GTLM4   19  16.2 999.9 160  2.6  5.1 999 9999.9 1018.6 99.9 99.9 99.9             
202518508001GTLM4   19  16.3 999.9 150  2.1  5.1 999 9999.9 1018.6 99.9 99.9 99.9             
202518508101GTLM4   19  16.4 999.9 150  3.6  6.2 999 9999.9 1018.6 99.9 99.9 99.9             
202518508201GTLM4   19  16.4 999.9 150  4.1  6.2 999 9999.9 1018.3 99.9 99.9 99.9             
202518508301GTLM4   19  16.4 999.9 140  3.6  6.2 999 9999.9 1018.3 99.9 99.9 99.9             
202518508401GTLM4   19  16.4 999.9 160  3.1  5.7 999 9999.9 1018.3 99.9 99.9 99.9             
202518508451GTLM4   19  16.4 999.9 160  3.1  6.2 999 9999.9 1018.3 99.9 99.9 99.9             
202518508501GTLM4   19  16.5 999.9 170  2.6  6.7 999 9999.9 1018.3 99.9 99.9 99.9             
202518509001GTLM4   19  16.6 999.9 160  3.1  5.7 999 9999.9 1017.9 99.9 99.9 99.9             
202518509101GTLM4   19  16.5 999.9 140  3.6  6.2 999 9999.9 1017.9 99.9 99.9 99.9             
202518509201GTLM4   19  16.4 999.9 140  4.1  6.2 999 9999.9 1017.9 99.9 99.9 99.9             
202518509301GTLM4   19  16.3 999.9 150  3.6  6.7 999 9999.9 1017.9 99.9 99.9 99.9             
202518509401GTLM4   19  16.3 999.9 160  3.6  6.7 999 9999.9 1017.9 99.9 99.9 99.9             
202518509461GTLM4   19  16.3 999.9 160  3.6  6.7 999 9999.9 1017.9 99.9 99.9 99.9             
202518509501GTLM4   19  16.4 999.9 160  3.6  6.7 999 9999.9 1017.9 99.9 99.9 99.9             
202518510001GTLM4   19  16.4 999.9 170  3.1  6.7 999 9999.9 1017.9 99.9 99.9 99.9             
202518510101GTLM4   19  16.4 999.9 170  3.6  7.2 999 9999.9 1017.9 99.9 99.9 99.9             
202518510201GTLM4   19  16.6 999.9 180  3.6  8.2 999 9999.9 1017.9 99.9 99.9 99.9             
202518510301GTLM4   19  16.8 999.9 170  3.6  7.7 999 9999.9 1017.9 99.9 99.9 99.9             
202518510401GTLM4   19  17.0 999.9 160  3.1  7.2 999 9999.9 1017.9 99.9 99.9 99.9             
202518510461GTLM4   19  17.1 999.9 160  3.6  8.2 999 9999.9 1017.9 99.9 99.9 99.9             
202518510501GTLM4   19  17.1 999.9 170  2.6  5.7 999 9999.9 1017.9 99.9 99.9 99.9             
202518511001GTLM4   19  17.6 999.9 170  3.6  6.2 999 9999.9 1017.9 99.9 99.9 99.9             
202518511101GTLM4   19  18.4 999.9 160  2.6  6.2 999 9999.9 1017.9 99.9 99.9 99.9             
202518511201GTLM4   19  19.1 999.9 170  3.6  6.2 999 9999.9 1017.9 99.9 99.9 99.9             
202518511301GTLM4   19  19.4 999.9 160  4.1  6.7 999 9999.9 1017.9 99.9 99.9 99.9             
202518511401GTLM4   19  19.7 999.9 160  3.6  6.7 999 9999.9 1018.3 99.9 99.9 99.9             
202518511461GTLM4   19  19.5 999.9 170  4.1  7.7 999 9999.9 1018.3 99.9 99.9 99.9             
202518511501GTLM4   19  19.2 999.9 180  3.6  7.7 999 9999.9 1017.9 99.9 99.9 99.9             
202518512001GTLM4   19  19.5 999.9 170  4.1  7.7 999 9999.9 1018.3 99.9 99.9 99.9             
202518512101GTLM4   19  19.6 999.9 170  3.1  7.7 999 9999.9 1018.3 99.9 99.9 99.9             
202518512201GTLM4   19  20.5 999.9 170  3.6  7.7 999 9999.9 1018.3 99.9 99.9 99.9             
202518512301GTLM4   19  20.5 999.9 170  3.1  6.7 999 9999.9 1018.6 99.9 99.9 99.9             
202518512401GTLM4   19  20.9 999.9 170  2.6  7.7 999 9999.9 1018.3 99.9 99.9 99.9             
202518512471GTLM4   19  21.3 999.9 170  4.1  8.2 999 9999.9 1018.3 99.9 99.9 99.9             
202518512501GTLM4   19  21.4 999.9 180  4.6  8.2 999 9999.9 1018.3 99.9 99.9 99.9             
202518513001GTLM4   19  20.9 999.9 160  3.1  8.2 999 9999.9 1018.3 99.9 99.9 99.9             
202518513101GTLM4   19  20.1 999.9 170  3.1  6.7 999 9999.9 1017.6 99.9 99.9 99.9             
202518513201GTLM4   19  20.6 999.9 170  3.6  6.7 999 9999.9 1018.6 99.9 99.9 99.9             
202518513301GTLM4   19  20.9 999.9 160  3.1  6.7 999 9999.9 1018.6 99.9 99.9 99.9             
202518513401GTLM4   19  20.9 999.9 160  3.6  8.2 999 9999.9 1018.6 99.9 99.9 99.9             
202518513471GTLM4   19  21.0 999.9 170  3.1  8.2 999 9999.9 1018.6 99.9 99.9 99.9             
202518513501GTLM4   19  21.2 999.9 160  3.6  7.2 999 9999.9 1019.0 99.9 99.9 99.9             
202518514001GTLM4   19  21.1 999.9 170  3.1  8.2 999 9999.9 1019.0 99.9 99.9 99.9             
202518514101GTLM4   19  20.5 999.9 170  3.6  7.7 999 9999.9 1018.6 99.9 99.9 99.9             
202518514201GTLM4   19  20.9 999.9 170  3.6  7.7 999 9999.9 1018.3 99.9 99.9 99.9             
202518514301GTLM4   19  21.7 999.9 170  4.6  8.2 999 9999.9 1018.3 99.9 99.9 99.9             
202518514401GTLM4   19  22.4 999.9 180  3.6  8.7 999 9999.9 1018.3 99.9 99.9 99.9             
202518514481GTLM4   19  23.2 999.9 180  3.6  8.7 999 9999.9 1017.9 99.9 99.9 99.9             
202518514501GTLM4   19  23.6 999.9 170  4.1  8.2 999 9999.9 1018.3 99.9 99.9 99.9             
202518515001GTLM4   19  23.6 999.9 170  4.1  8.2 999 9999.9 1017.9 99.9 99.9 99.9             
202518515101GTLM4   19  23.7 999.9 160  3.1  8.2 999 9999.9 1017.9 99.9 99.9 99.9             
202518515201GTLM4   19  24.3 999.9 170  4.1  8.7 999 9999.9 1017.9 99.9 99.9 99.9             
202518515301GTLM4   19  24.9 999.9 160  3.6  6.7 999 9999.9 1017.9 99.9 99.9 99.9             
202518515401GTLM4   19  25.4 999.9 160  3.6  7.7 999 9999.9 1017.9 99.9 99.9 99.9             
202518515481GTLM4   19  25.6 999.9 170  3.1  8.7 999 9999.9 1017.9 99.9 99.9 99.9             
202518516401GTLM4   19  27.5 999.9 190  4.1  6.2 999 9999.9 1018.3 99.9 99.9 99.9             
202518516481GTLM4   19  27.4 999.9 190  2.6  7.2 999 9999.9 1018.6 99.9 99.9 99.9             
202518516501GTLM4   19  27.8 999.9 190  2.1  7.2 999 9999.9 1018.6 99.9 99.9 99.9             
202518517001GTLM4   19  28.4 999.9 200  2.1  5.7 999 9999.9 1018.6 99.9 99.9 99.9             
202518517101GTLM4   19  28.7 999.9 170  1.5  5.7 999 9999.9 1018.3 99.9 99.9 99.9             
202518517201GTLM4   19  28.6 999.9 180  2.6  5.1 999 9999.9 1018.3 99.9 99.9 99.9             
202518517301GTLM4   19  29.5 999.9 180  1.5  4.6 999 9999.9 1017.9 99.9 99.9 99.9             
202518517401GTLM4   19  29.6 999.9 220  2.6  6.2 999 9999.9 1017.9 99.9 99.9 99.9             
202518517491GTLM4   19  29.1 999.9 260  7.7  8.2 999 9999.9 1017.9 99.9 99.9 99.9             
202518517501GTLM4   19  27.9 999.9 250  6.2  8.2 999 9999.9 1017.9 99.9 99.9 99.9             
202518518001GTLM4   19  26.7 999.9 260  5.1  6.2 999 9999.9 1017.9 99.9 99.9 99.9             
202518518101GTLM4   19  25.7 999.9 260  4.1  5.1 999 9999.9 1017.9 99.9 99.9 99.9             
202518518201GTLM4   19  25.6 999.9 260  3.1  4.1 999 9999.9 1017.9 99.9 99.9 99.9             
202518518301GTLM4   19  26.2 999.9 280  2.6  3.6 999 9999.9 1017.9 99.9 99.9 99.9             
202518518401GTLM4   19  26.6 999.9 290  3.6  3.6 999 9999.9 1017.6 99.9 99.9 99.9             
202518518491GTLM4   19  27.2 999.9 290  3.1  6.2 999 9999.9 1017.3 99.9 99.9 99.9             
202518518501GTLM4   19  28.2 999.9 280  2.1  3.6 999 9999.9 1017.3 99.9 99.9 99.9             
202518519001GTLM4   19  28.2 999.9 290  1.0  2.1 999 9999.9 1017.3 99.9 99.9 99.9             
202518519101GTLM4   19  27.2 999.9 290  1.0  1.5 999 9999.9 1016.9 99.9 99.9 99.9             
202518519201GTLM4   19  27.9 999.9 270  1.0  2.1 999 9999.9 1016.9 99.9 99.9 99.9             
202518519301GTLM4   19  28.4 999.9 260  1.5  2.6 999 9999.9 1016.9 99.9 99.9 99.9             
202518519401GTLM4   19  27.6 999.9 280  2.1  2.6 999 9999.9 1017.3 99.9 99.9 99.9             
202518519501GTLM4   19  27.9 999.9 300  2.1  2.6 999 9999.9 1017.3 99.9 99.9 99.9             
202518520001GTLM4   19  28.3 999.9 270  2.1  3.1 999 9999.9 1017.3 99.9 99.9 99.9             
202518520101GTLM4   19  26.2 999.9 260  4.1  5.1 999 9999.9 1017.3 99.9 99.9 99.9             
202518520201GTLM4   19  25.5 999.9 250  3.6  5.1 999 9999.9 1017.3 99.9 99.9 99.9             
202518520301GTLM4   19  25.4 999.9 260  3.6  4.1 999 9999.9 1017.3 99.9 99.9 99.9             
202518520401GTLM4   19  25.8 999.9 260  4.1  5.1 999 9999.9 1016.9 99.9 99.9 99.9
  New Graph (click on parameter):                                      
  at | dp | wd | ws | wg | cc | sr | bp | wt | wvh | wvp
google chart
  [every 3rd data value plotted]
139 matching elements
0.033 sec
This Web page created and maintained by Greg Lang, NOAA/GLERL,
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