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Realtime Great Lakes Weather Data and Marine Observations


CLSM4: NWS St.ClairShoresMI                                  
CMAN Station
Lat: 42.47°, Lon: -82.88°
Elevation: 175 m
Anemometer Height: 10 m
Related Site: NDBC


Current Time: 0653 GMT
Station Types
(Click on name to view all stations for that type)
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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            F     F  Deg  kts  kts  %   W/m2   inHg    F    ft   s 202518500001CLSM4 39 75.2 999.9 50 14.0 15.0 999 9999.9 30.02 99.9 99.9 99.9 202518500101CLSM4 39 74.8 999.9 50 13.0 15.0 999 9999.9 30.03 99.9 99.9 99.9 202518500201CLSM4 39 74.8 999.9 50 12.1 15.0 999 9999.9 30.02 99.9 99.9 99.9 202518500301CLSM4 39 74.3 999.9 40 12.1 15.0 999 9999.9 30.02 99.9 99.9 99.9 202518500501CLSM4 39 74.5 999.9 40 13.0 15.9 999 9999.9 30.04 99.9 99.9 99.9 202518501001CLSM4 39 74.1 999.9 50 13.0 15.0 999 9999.9 30.03 99.9 99.9 99.9 202518501101CLSM4 39 74.1 999.9 40 12.1 15.0 999 9999.9 30.04 99.9 99.9 99.9 202518501201CLSM4 39 73.8 999.9 40 12.1 15.0 999 9999.9 30.04 99.9 99.9 99.9 202518501301CLSM4 39 73.8 999.9 50 8.9 14.0 999 9999.9 30.05 99.9 99.9 99.9 202518501401CLSM4 39 73.4 999.9 40 9.9 12.1 999 9999.9 30.05 99.9 99.9 99.9 202518501501CLSM4 39 73.2 999.9 40 8.9 12.1 999 9999.9 30.06 99.9 99.9 99.9 202518502001CLSM4 39 73.0 999.9 40 11.1 12.1 999 9999.9 30.06 99.9 99.9 99.9 202518502101CLSM4 39 72.9 999.9 50 9.9 13.0 999 9999.9 30.06 99.9 99.9 99.9 202518502201CLSM4 39 72.9 999.9 50 8.9 12.1 999 9999.9 30.07 99.9 99.9 99.9 202518502301CLSM4 39 72.5 999.9 50 9.9 11.1 999 9999.9 30.07 99.9 99.9 99.9 202518502401CLSM4 39 72.7 999.9 40 11.1 13.0 999 9999.9 30.08 99.9 99.9 99.9 202518502501CLSM4 39 72.1 999.9 40 9.9 13.0 999 9999.9 30.08 99.9 99.9 99.9 202518503001CLSM4 39 72.0 999.9 50 9.9 13.0 999 9999.9 30.08 99.9 99.9 99.9 202518503101CLSM4 39 71.6 999.9 50 9.9 13.0 999 9999.9 30.08 99.9 99.9 99.9 202518503201CLSM4 39 71.6 999.9 50 9.9 13.0 999 9999.9 30.09 99.9 99.9 99.9 202518503301CLSM4 39 71.4 999.9 60 9.9 12.1 999 9999.9 30.09 99.9 99.9 99.9 202518503401CLSM4 39 71.4 999.9 70 9.9 12.1 999 9999.9 30.09 99.9 99.9 99.9 202518503501CLSM4 39 71.2 999.9 60 8.9 12.1 999 9999.9 30.09 99.9 99.9 99.9 202518504001CLSM4 39 71.2 999.9 70 8.0 11.1 999 9999.9 30.09 99.9 99.9 99.9 202518504101CLSM4 39 71.2 999.9 70 9.9 12.1 999 9999.9 30.09 99.9 99.9 99.9 202518504201CLSM4 39 71.2 999.9 80 8.9 11.1 999 9999.9 30.09 99.9 99.9 99.9 202518504301CLSM4 39 71.2 999.9 70 8.0 9.9 999 9999.9 30.10 99.9 99.9 99.9 202518504401CLSM4 39 71.4 999.9 60 9.9 11.1 999 9999.9 30.10 99.9 99.9 99.9 202518504501CLSM4 39 71.8 999.9 60 8.9 12.1 999 9999.9 30.11 99.9 99.9 99.9 202518505001CLSM4 39 71.4 999.9 70 9.9 11.1 999 9999.9 30.10 99.9 99.9 99.9 202518505101CLSM4 39 71.2 999.9 60 8.9 12.1 999 9999.9 30.10 99.9 99.9 99.9 202518505201CLSM4 39 71.1 999.9 60 8.9 9.9 999 9999.9 30.10 99.9 99.9 99.9 202518505301CLSM4 39 70.9 999.9 60 8.0 11.1 999 9999.9 30.10 99.9 99.9 99.9 202518505401CLSM4 39 70.9 999.9 80 8.0 8.9 999 9999.9 30.10 99.9 99.9 99.9 202518505501CLSM4 39 70.9 999.9 90 7.0 8.9 999 9999.9 30.10 99.9 99.9 99.9
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