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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: 0742 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 (189)
 (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 202518900001CLSM4 39 69.8 999.9 360 11.1 13.0 999 9999.9 30.05 99.9 99.9 99.9 202518900101CLSM4 39 69.8 999.9 10 8.0 12.1 999 9999.9 30.05 99.9 99.9 99.9 202518900201CLSM4 39 69.8 999.9 360 11.1 13.0 999 9999.9 30.05 99.9 99.9 99.9 202518900301CLSM4 39 69.6 999.9 360 9.9 14.0 999 9999.9 30.05 99.9 99.9 99.9 202518900501CLSM4 39 69.4 999.9 340 7.0 11.1 999 9999.9 30.06 99.9 99.9 99.9 202518901001CLSM4 39 69.4 999.9 350 6.0 12.1 999 9999.9 30.06 99.9 99.9 99.9 202518901101CLSM4 39 69.1 999.9 350 7.0 13.0 999 9999.9 30.06 99.9 99.9 99.9 202518901201CLSM4 39 69.3 999.9 340 5.1 8.9 999 9999.9 30.06 99.9 99.9 99.9 202518901301CLSM4 39 68.9 999.9 350 8.9 12.1 999 9999.9 30.07 99.9 99.9 99.9 202518901401CLSM4 39 68.9 999.9 340 6.0 12.1 999 9999.9 30.07 99.9 99.9 99.9 202518901501CLSM4 39 68.9 999.9 360 9.9 12.1 999 9999.9 30.07 99.9 99.9 99.9 202518902001CLSM4 39 68.9 999.9 350 6.0 11.1 999 9999.9 30.07 99.9 99.9 99.9 202518902101CLSM4 39 69.1 999.9 340 7.0 9.9 999 9999.9 30.07 99.9 99.9 99.9 202518902201CLSM4 39 68.9 999.9 350 8.0 12.1 999 9999.9 30.07 99.9 99.9 99.9 202518902301CLSM4 39 68.7 999.9 340 7.0 9.9 999 9999.9 30.08 99.9 99.9 99.9 202518902401CLSM4 39 68.4 999.9 340 6.0 11.1 999 9999.9 30.07 99.9 99.9 99.9 202518902501CLSM4 39 68.4 999.9 350 8.0 11.1 999 9999.9 30.07 99.9 99.9 99.9 202518903001CLSM4 39 68.4 999.9 330 2.9 11.1 999 9999.9 30.08 99.9 99.9 99.9 202518903101CLSM4 39 68.2 999.9 320 5.1 8.9 999 9999.9 30.08 99.9 99.9 99.9 202518903201CLSM4 39 68.0 999.9 310 4.1 7.0 999 9999.9 30.08 99.9 99.9 99.9 202518903301CLSM4 39 68.2 999.9 310 4.1 7.0 999 9999.9 30.08 99.9 99.9 99.9 202518904001CLSM4 39 67.8 999.9 330 1.9 8.0 999 9999.9 30.09 99.9 99.9 99.9 202518904101CLSM4 39 67.6 999.9 330 4.1 5.1 999 9999.9 30.09 99.9 99.9 99.9 202518904201CLSM4 39 67.5 999.9 320 1.9 5.1 999 9999.9 30.08 99.9 99.9 99.9 202518904301CLSM4 39 67.6 999.9 340 4.1 7.0 999 9999.9 30.09 99.9 99.9 99.9 202518904401CLSM4 39 67.6 999.9 330 1.9 7.0 999 9999.9 30.09 99.9 99.9 99.9 202518904501CLSM4 39 67.3 999.9 310 1.9 6.0 999 9999.9 30.09 99.9 99.9 99.9 202518905001CLSM4 39 66.9 999.9 300 2.9 4.1 999 9999.9 30.09 99.9 99.9 99.9 202518905101CLSM4 39 66.7 999.9 290 4.1 4.1 999 9999.9 30.10 99.9 99.9 99.9 202518905201CLSM4 39 66.7 999.9 280 1.9 4.1 999 9999.9 30.10 99.9 99.9 99.9 202518905301CLSM4 39 66.6 999.9 260 2.9 2.9 999 9999.9 30.09 99.9 99.9 99.9 202518905401CLSM4 39 66.4 999.9 270 1.9 2.9 999 9999.9 30.09 99.9 99.9 99.9 202518905501CLSM4 39 66.2 999.9 280 2.9 4.1 999 9999.9 30.09 99.9 99.9 99.9 202518906001CLSM4 39 66.0 999.9 300 2.9 15.9 999 9999.9 30.08 99.9 99.9 99.9 202518906101CLSM4 39 65.7 999.9 290 4.1 5.1 999 9999.9 30.08 99.9 99.9 99.9 202518906201CLSM4 39 65.5 999.9 260 2.9 4.1 999 9999.9 30.08 99.9 99.9 99.9 202518906301CLSM4 39 65.3 999.9 250 2.9 2.9 999 9999.9 30.08 99.9 99.9 99.9 202518906401CLSM4 39 65.3 999.9 260 1.9 4.1 999 9999.9 30.08 99.9 99.9 99.9 202518906501CLSM4 39 64.9 999.9 280 1.9 4.1 999 9999.9 30.08 99.9 99.9 99.9 202518907001CLSM4 39 64.8 999.9 270 4.1 5.1 999 9999.9 30.08 99.9 99.9 99.9
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