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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: 1417 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 (024)
 (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
202502400001CLSM4   39  -6.1 999.9 290  4.6  8.7 999 9999.9 1022.0 99.9 99.9 99.9             
202502400101CLSM4   39  -6.2 999.9 290  6.7  8.2 999 9999.9 1022.0 99.9 99.9 99.9             
202502400201CLSM4   39  -6.1 999.9 290  5.7  8.7 999 9999.9 1022.0 99.9 99.9 99.9             
202502400301CLSM4   39  -6.1 999.9 280  5.1  7.7 999 9999.9 1021.7 99.9 99.9 99.9             
202502400401CLSM4   39  -6.4 999.9 270  4.6  7.2 999 9999.9 1022.0 99.9 99.9 99.9             
202502400501CLSM4   39  -6.4 999.9 260  4.1  6.7 999 9999.9 1022.0 99.9 99.9 99.9             
202502401001CLSM4   39  -6.3 999.9 250  4.1  6.7 999 9999.9 1022.0 99.9 99.9 99.9             
202502401101CLSM4   39  -6.5 999.9 260  3.6  6.2 999 9999.9 1022.0 99.9 99.9 99.9             
202502401201CLSM4   39  -6.6 999.9 270  4.1  6.7 999 9999.9 1022.4 99.9 99.9 99.9             
202502401301CLSM4   39  -6.7 999.9 270  3.6  5.7 999 9999.9 1022.4 99.9 99.9 99.9             
202502401401CLSM4   39  -6.9 999.9 270  3.6  5.1 999 9999.9 1022.4 99.9 99.9 99.9             
202502401501CLSM4   39  -6.9 999.9 270  3.6  5.7 999 9999.9 1022.7 99.9 99.9 99.9             
202502402001CLSM4   39  -6.9 999.9 260  3.6  4.6 999 9999.9 1022.7 99.9 99.9 99.9             
202502402101CLSM4   39  -7.0 999.9 270  3.6  5.7 999 9999.9 1022.7 99.9 99.9 99.9             
202502402201CLSM4   39  -7.2 999.9 260  3.6  5.7 999 9999.9 1022.7 99.9 99.9 99.9             
202502402301CLSM4   39  -7.3 999.9 270  4.6  5.7 999 9999.9 1022.7 99.9 99.9 99.9             
202502402401CLSM4   39  -7.3 999.9 270  3.6  5.7 999 9999.9 1022.7 99.9 99.9 99.9             
202502402501CLSM4   39  -7.4 999.9 270  4.1  6.7 999 9999.9 1022.7 99.9 99.9 99.9             
202502403001CLSM4   39  -7.6 999.9 270  3.6  5.7 999 9999.9 1022.7 99.9 99.9 99.9             
202502403101CLSM4   39  -7.7 999.9 270  4.1  5.1 999 9999.9 1022.7 99.9 99.9 99.9             
202502403201CLSM4   39  -7.8 999.9 260  4.1  5.7 999 9999.9 1022.7 99.9 99.9 99.9             
202502403301CLSM4   39  -7.8 999.9 270  4.1  6.2 999 9999.9 1023.0 99.9 99.9 99.9             
202502403401CLSM4   39  -8.0 999.9 270  4.1  5.1 999 9999.9 1023.0 99.9 99.9 99.9             
202502403501CLSM4   39  -8.1 999.9 270  3.6  5.1 999 9999.9 1023.0 99.9 99.9 99.9             
202502404001CLSM4   39  -8.2 999.9 270  3.6  5.7 999 9999.9 1023.0 99.9 99.9 99.9             
202502404101CLSM4   39  -8.2 999.9 270  4.1  5.7 999 9999.9 1023.0 99.9 99.9 99.9             
202502404201CLSM4   39  -8.5 999.9 270  3.6  4.6 999 9999.9 1023.0 99.9 99.9 99.9             
202502404301CLSM4   39  -8.6 999.9 270  3.6  5.1 999 9999.9 1023.0 99.9 99.9 99.9             
202502404401CLSM4   39  -8.6 999.9 270  4.1  5.7 999 9999.9 1023.0 99.9 99.9 99.9             
202502404501CLSM4   39  -8.8 999.9 270  3.6  5.1 999 9999.9 1023.0 99.9 99.9 99.9             
202502405001CLSM4   39  -8.8 999.9 270  3.6  6.2 999 9999.9 1023.0 99.9 99.9 99.9             
202502405101CLSM4   39  -8.9 999.9 280  4.1  5.7 999 9999.9 1023.0 99.9 99.9 99.9             
202502405201CLSM4   39  -8.8 999.9 270  4.6  6.2 999 9999.9 1023.0 99.9 99.9 99.9             
202502405301CLSM4   39  -9.0 999.9 270  3.6  6.2 999 9999.9 1023.0 99.9 99.9 99.9             
202502405401CLSM4   39  -9.1 999.9 260  3.6  5.7 999 9999.9 1023.4 99.9 99.9 99.9             
202502405501CLSM4   39  -9.1 999.9 260  3.6  6.2 999 9999.9 1023.0 99.9 99.9 99.9             
202502406001CLSM4   39  -9.3 999.9 270  3.6  5.7 999 9999.9 1023.0 99.9 99.9 99.9             
202502406101CLSM4   39  -9.3 999.9 270  3.6  5.1 999 9999.9 1023.0 99.9 99.9 99.9             
202502406201CLSM4   39  -9.4 999.9 270  3.6  5.7 999 9999.9 1023.0 99.9 99.9 99.9             
202502406301CLSM4   39  -9.4 999.9 270  3.6  5.7 999 9999.9 1023.4 99.9 99.9 99.9             
202502406401CLSM4   39  -9.5 999.9 260  3.6  4.6 999 9999.9 1023.4 99.9 99.9 99.9             
202502406501CLSM4   39  -9.6 999.9 260  3.1  4.6 999 9999.9 1023.4 99.9 99.9 99.9             
202502407001CLSM4   39  -9.6 999.9 260  3.1  4.1 999 9999.9 1023.4 99.9 99.9 99.9             
202502407101CLSM4   39  -9.8 999.9 260  3.1  4.1 999 9999.9 1023.4 99.9 99.9 99.9             
202502407201CLSM4   39 -10.0 999.9 260  2.6  3.6 999 9999.9 1023.4 99.9 99.9 99.9             
202502407301CLSM4   39 -10.1 999.9 260  2.6  3.6 999 9999.9 1023.4 99.9 99.9 99.9             
202502407401CLSM4   39 -10.3 999.9 270  2.6  3.6 999 9999.9 1023.4 99.9 99.9 99.9             
202502407501CLSM4   39 -10.3 999.9 270  2.6  3.6 999 9999.9 1023.4 99.9 99.9 99.9             
202502408001CLSM4   39 -10.5 999.9 280  2.1  3.6 999 9999.9 1023.4 99.9 99.9 99.9             
202502408101CLSM4   39 -10.7 999.9 270  2.1  3.1 999 9999.9 1023.4 99.9 99.9 99.9             
202502408201CLSM4   39 -10.8 999.9 260  2.6  3.1 999 9999.9 1023.7 99.9 99.9 99.9             
202502408301CLSM4   39 -10.8 999.9 270  1.5  3.1 999 9999.9 1023.7 99.9 99.9 99.9             
202502408401CLSM4   39 -10.9 999.9 250  2.1  3.1 999 9999.9 1023.7 99.9 99.9 99.9             
202502408501CLSM4   39 -11.0 999.9 260  2.1  3.1 999 9999.9 1023.7 99.9 99.9 99.9             
202502409001CLSM4   39 -11.2 999.9 240  2.1  2.6 999 9999.9 1023.7 99.9 99.9 99.9             
202502409101CLSM4   39 -11.3 999.9 250  2.1  2.6 999 9999.9 1023.7 99.9 99.9 99.9             
202502409201CLSM4   39 -11.3 999.9 250  2.1  3.1 999 9999.9 1023.7 99.9 99.9 99.9             
202502409301CLSM4   39 -11.4 999.9 240  2.6  2.6 999 9999.9 1023.7 99.9 99.9 99.9             
202502409401CLSM4   39 -11.3 999.9 240  2.6  2.6 999 9999.9 1023.7 99.9 99.9 99.9             
202502409501CLSM4   39 -11.2 999.9 240  2.6  3.1 999 9999.9 1023.7 99.9 99.9 99.9             
202502410001CLSM4   39 -11.0 999.9 250  2.6  3.6 999 9999.9 1023.7 99.9 99.9 99.9             
202502410101CLSM4   39 -10.4 999.9 260  2.6  3.1 999 9999.9 1023.7 99.9 99.9 99.9             
202502410201CLSM4   39  -9.8 999.9 260  2.6  4.6 999 9999.9 1023.7 99.9 99.9 99.9             
202502410301CLSM4   39  -9.5 999.9 250  2.6  4.1 999 9999.9 1023.7 99.9 99.9 99.9             
202502410401CLSM4   39  -9.4 999.9 250  2.1  3.1 999 9999.9 1023.7 99.9 99.9 99.9             
202502410501CLSM4   39  -9.1 999.9 270  2.6  4.6 999 9999.9 1024.0 99.9 99.9 99.9             
202502411001CLSM4   39  -8.9 999.9 270  2.1  3.6 999 9999.9 1023.7 99.9 99.9 99.9             
202502411101CLSM4   39  -8.9 999.9 260  1.5  2.6 999 9999.9 1024.0 99.9 99.9 99.9             
202502411201CLSM4   39  -8.9 999.9 270  1.0  2.1 999 9999.9 1024.0 99.9 99.9 99.9             
202502411301CLSM4   39  -8.7 999.9 250  2.1  2.6 999 9999.9 1024.0 99.9 99.9 99.9             
202502411401CLSM4   39  -8.5 999.9 270  2.6  4.1 999 9999.9 1024.0 99.9 99.9 99.9             
202502411501CLSM4   39  -8.4 999.9 270  2.1  4.6 999 9999.9 1024.0 99.9 99.9 99.9             
202502412001CLSM4   39  -8.4 999.9 280  1.5  3.1 999 9999.9 1024.0 99.9 99.9 99.9             
202502412101CLSM4   39  -8.4 999.9 280  1.5  2.6 999 9999.9 1024.0 99.9 99.9 99.9             
202502412201CLSM4   39  -8.5 999.9 300  1.0  2.1 999 9999.9 1024.0 99.9 99.9 99.9             
202502412301CLSM4   39  -8.4 999.9 240  1.0  2.1 999 9999.9 1024.0 99.9 99.9 99.9             
202502412401CLSM4   39  -8.4 999.9 260  1.0  1.5 999 9999.9 1024.0 99.9 99.9 99.9             
202502412501CLSM4   39  -8.4 999.9 250  1.0  1.5 999 9999.9 1024.0 99.9 99.9 99.9             
202502413001CLSM4   39  -8.3 999.9 250  1.5  1.5 999 9999.9 1024.0 99.9 99.9 99.9
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