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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: 0556 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

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 Enter New DOY (001-366):  Or Today (174)
 (See also Tables for determining DOY for a given date)
View multiple days of data for this station:
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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 202517400001CLSM4 39 93.2 999.9 220 11.1 18.1 999 9999.9 30.02 99.9 99.9 99.9 202517400101CLSM4 39 93.0 999.9 230 11.1 15.0 999 9999.9 30.02 99.9 99.9 99.9 202517400201CLSM4 39 92.7 999.9 240 8.9 15.9 999 9999.9 30.02 99.9 99.9 99.9 202517400301CLSM4 39 92.3 999.9 230 8.9 13.0 999 9999.9 30.03 99.9 99.9 99.9 202517400401CLSM4 39 92.1 999.9 210 8.9 14.0 999 9999.9 30.03 99.9 99.9 99.9 202517401001CLSM4 39 90.9 999.9 200 6.0 9.9 999 9999.9 30.03 99.9 99.9 99.9 202517401101CLSM4 39 90.3 999.9 200 7.0 11.1 999 9999.9 30.03 99.9 99.9 99.9 202517401201CLSM4 39 90.1 999.9 210 8.0 12.1 999 9999.9 30.03 99.9 99.9 99.9 202517401301CLSM4 39 89.8 999.9 210 8.0 9.9 999 9999.9 30.03 99.9 99.9 99.9 202517401401CLSM4 39 89.4 999.9 220 7.0 11.1 999 9999.9 30.04 99.9 99.9 99.9 202517401501CLSM4 39 89.2 999.9 220 8.9 11.1 999 9999.9 30.05 99.9 99.9 99.9 202517402001CLSM4 39 89.2 999.9 220 7.0 11.1 999 9999.9 30.05 99.9 99.9 99.9 202517402101CLSM4 39 89.1 999.9 220 6.0 9.9 999 9999.9 30.05 99.9 99.9 99.9 202517402201CLSM4 39 88.5 999.9 220 6.0 8.9 999 9999.9 30.05 99.9 99.9 99.9 202517402301CLSM4 39 88.5 999.9 220 6.0 9.9 999 9999.9 30.06 99.9 99.9 99.9 202517402401CLSM4 39 88.2 999.9 230 6.0 8.9 999 9999.9 30.06 99.9 99.9 99.9 202517402501CLSM4 39 88.3 999.9 230 7.0 12.1 999 9999.9 30.06 99.9 99.9 99.9 202517403001CLSM4 39 88.0 999.9 220 6.0 13.0 999 9999.9 30.06 99.9 99.9 99.9 202517403101CLSM4 39 87.4 999.9 220 7.0 11.1 999 9999.9 30.06 99.9 99.9 99.9 202517403201CLSM4 39 87.4 999.9 230 7.0 12.1 999 9999.9 30.06 99.9 99.9 99.9 202517403301CLSM4 39 87.4 999.9 230 7.0 12.1 999 9999.9 30.06 99.9 99.9 99.9 202517403401CLSM4 39 87.1 999.9 230 9.9 13.0 999 9999.9 30.06 99.9 99.9 99.9 202517403501CLSM4 39 86.9 999.9 240 8.0 13.0 999 9999.9 30.06 99.9 99.9 99.9 202517404001CLSM4 39 86.7 999.9 240 8.0 15.0 999 9999.9 30.07 99.9 99.9 99.9 202517404101CLSM4 39 86.5 999.9 240 8.9 15.0 999 9999.9 30.07 99.9 99.9 99.9 202517404201CLSM4 39 86.5 999.9 240 7.0 12.1 999 9999.9 30.07 99.9 99.9 99.9 202517404301CLSM4 39 86.4 999.9 250 9.9 15.0 999 9999.9 30.06 99.9 99.9 99.9 202517404401CLSM4 39 86.2 999.9 240 8.0 13.0 999 9999.9 30.06 99.9 99.9 99.9 202517404501CLSM4 39 86.0 999.9 240 8.0 13.0 999 9999.9 30.06 99.9 99.9 99.9 202517405001CLSM4 39 85.6 999.9 230 8.0 13.0 999 9999.9 30.06 99.9 99.9 99.9
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