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Realtime Great Lakes Weather Data and Marine Observations


SWPM4: NOS S.W. Pier MI                                  
CMAN Station
Lat: 46.50°, Lon: -84.37°
Elevation: 186 m
Anemometer Height: 9 m
Related Site: NDBC


Current Time: 0830 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 (043)
 (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 202504300001SWPM4 09 -10.9 999.9 180 2.6 3.1 999 9999.9 1024.1 99.9 99.9 99.9 202504300061SWPM4 09 -10.9 999.9 999 99.9 99.9 999 9999.9 9999.9 99.9 99.9 99.9 202504300121SWPM4 09 -10.9 999.9 999 99.9 99.9 999 9999.9 9999.9 99.9 99.9 99.9 202504300181SWPM4 09 -10.9 999.9 999 99.9 99.9 999 9999.9 9999.9 99.9 99.9 99.9 202504300241SWPM4 09 -11.0 999.9 170 2.6 3.6 999 9999.9 1024.2 99.9 99.9 99.9 202504300301SWPM4 09 -11.1 999.9 180 2.6 3.6 999 9999.9 1024.2 99.9 99.9 99.9 202504300361SWPM4 09 999.9 999.9 999 99.9 99.9 999 9999.9 1024.1 99.9 99.9 99.9 202504300421SWPM4 09 999.9 999.9 999 99.9 99.9 999 9999.9 1024.1 99.9 99.9 99.9 202504300481SWPM4 09 999.9 999.9 999 99.9 99.9 999 9999.9 1024.1 99.9 99.9 99.9 202504300541SWPM4 09 -11.2 999.9 180 2.6 3.6 999 9999.9 1024.0 99.9 99.9 99.9 202504301001SWPM4 09 -11.1 999.9 180 1.5 3.6 999 9999.9 1024.0 99.9 99.9 99.9 202504301061SWPM4 09 -11.2 999.9 999 99.9 99.9 999 9999.9 9999.9 99.9 99.9 99.9 202504301121SWPM4 09 -11.1 999.9 999 99.9 99.9 999 9999.9 9999.9 99.9 99.9 99.9 202504301181SWPM4 09 -11.2 999.9 999 99.9 99.9 999 9999.9 9999.9 99.9 99.9 99.9 202504301241SWPM4 09 -11.3 999.9 160 2.1 3.1 999 9999.9 1024.0 99.9 99.9 99.9 202504301301SWPM4 09 -11.4 999.9 170 1.5 2.6 999 9999.9 1023.8 99.9 99.9 99.9 202504301361SWPM4 09 -11.4 999.9 210 1.5 2.6 999 9999.9 1023.9 99.9 99.9 99.9 202504301421SWPM4 09 -12.0 999.9 250 2.1 2.6 999 9999.9 1023.9 99.9 99.9 99.9 202504301481SWPM4 09 -11.9 999.9 260 2.1 2.6 999 9999.9 1024.0 99.9 99.9 99.9 202504301541SWPM4 09 -12.7 999.9 340 4.6 5.1 999 9999.9 1024.1 99.9 99.9 99.9 202504302001SWPM4 09 -12.7 999.9 330 2.6 4.6 999 9999.9 1024.1 99.9 99.9 99.9 202504302061SWPM4 09 -12.4 999.9 999 99.9 99.9 999 9999.9 9999.9 99.9 99.9 99.9 202504302121SWPM4 09 -12.5 999.9 999 99.9 99.9 999 9999.9 9999.9 99.9 99.9 99.9 202504302181SWPM4 09 -12.5 999.9 999 99.9 99.9 999 9999.9 9999.9 99.9 99.9 99.9 202504302241SWPM4 09 -12.7 999.9 280 1.0 1.5 999 9999.9 1024.0 99.9 99.9 99.9 202504302301SWPM4 09 -13.1 999.9 280 1.0 1.5 999 9999.9 1024.0 99.9 99.9 99.9 202504302361SWPM4 09 999.9 999.9 999 99.9 99.9 999 9999.9 1024.0 99.9 99.9 99.9 202504302421SWPM4 09 999.9 999.9 999 99.9 99.9 999 9999.9 1024.0 99.9 99.9 99.9 202504302481SWPM4 09 999.9 999.9 999 99.9 99.9 999 9999.9 1024.1 99.9 99.9 99.9 202504302541SWPM4 09 -14.0 999.9 340 0.5 0.5 999 9999.9 1024.1 99.9 99.9 99.9 202504303001SWPM4 09 -14.0 999.9 0 0.0 0.5 999 9999.9 1024.2 99.9 99.9 99.9 202504303061SWPM4 09 -13.9 999.9 999 99.9 99.9 999 9999.9 9999.9 99.9 99.9 99.9 202504303121SWPM4 09 -14.7 999.9 999 99.9 99.9 999 9999.9 9999.9 99.9 99.9 99.9 202504303181SWPM4 09 -14.4 999.9 999 99.9 99.9 999 9999.9 9999.9 99.9 99.9 99.9 202504303241SWPM4 09 -14.2 999.9 90 1.0 1.5 999 9999.9 1024.2 99.9 99.9 99.9 202504303301SWPM4 09 -13.6 999.9 120 1.0 1.0 999 9999.9 1024.2 99.9 99.9 99.9 202504303361SWPM4 09 999.9 999.9 999 99.9 99.9 999 9999.9 1024.2 99.9 99.9 99.9 202504303421SWPM4 09 999.9 999.9 999 99.9 99.9 999 9999.9 1024.1 99.9 99.9 99.9 202504303481SWPM4 09 999.9 999.9 999 99.9 99.9 999 9999.9 1024.0 99.9 99.9 99.9 202504303541SWPM4 09 -14.9 999.9 280 0.5 1.0 999 9999.9 1023.9 99.9 99.9 99.9 202504304001SWPM4 09 -15.3 999.9 310 2.1 2.6 999 9999.9 1024.0 99.9 99.9 99.9 202504304061SWPM4 09 -14.6 999.9 999 99.9 99.9 999 9999.9 9999.9 99.9 99.9 99.9 202504304121SWPM4 09 -14.4 999.9 999 99.9 99.9 999 9999.9 9999.9 99.9 99.9 99.9 202504304181SWPM4 09 -14.8 999.9 999 99.9 99.9 999 9999.9 9999.9 99.9 99.9 99.9 202504304241SWPM4 09 -15.4 999.9 260 0.5 1.5 999 9999.9 1024.1 99.9 99.9 99.9 202504304301SWPM4 09 -15.3 999.9 200 1.0 1.0 999 9999.9 1024.0 99.9 99.9 99.9 202504304361SWPM4 09 -15.9 999.9 300 0.5 1.0 999 9999.9 1024.0 99.9 99.9 99.9 202504304421SWPM4 09 -16.0 999.9 220 1.0 1.5 999 9999.9 1023.9 99.9 99.9 99.9 202504304481SWPM4 09 -15.6 999.9 130 1.5 1.5 999 9999.9 1023.9 99.9 99.9 99.9 202504304541SWPM4 09 -15.0 999.9 160 1.0 1.5 999 9999.9 1023.9 99.9 99.9 99.9 202504305001SWPM4 09 -14.9 999.9 150 2.1 2.6 999 9999.9 1023.9 99.9 99.9 99.9 202504305061SWPM4 09 -14.9 999.9 999 99.9 99.9 999 9999.9 1023.9 99.9 99.9 99.9 202504305121SWPM4 09 -14.8 999.9 999 99.9 99.9 999 9999.9 1023.9 99.9 99.9 99.9 202504305181SWPM4 09 -15.5 999.9 999 99.9 99.9 999 9999.9 1023.9 99.9 99.9 99.9 202504305241SWPM4 09 -15.5 999.9 80 2.1 2.6 999 9999.9 1023.9 99.9 99.9 99.9 202504305301SWPM4 09 -15.4 999.9 80 1.5 2.1 999 9999.9 1023.9 99.9 99.9 99.9 202504305361SWPM4 09 -15.7 999.9 40 2.1 2.6 999 9999.9 1024.0 99.9 99.9 99.9 202504305421SWPM4 09 -16.0 999.9 70 1.5 2.6 999 9999.9 1024.0 99.9 99.9 99.9 202504305481SWPM4 09 -16.1 999.9 80 1.5 1.5 999 9999.9 1024.0 99.9 99.9 99.9 202504305541SWPM4 09 -16.1 999.9 100 1.0 1.5 999 9999.9 1024.0 99.9 99.9 99.9 202504306001SWPM4 09 -16.6 999.9 200 1.0 1.0 999 9999.9 1024.0 99.9 99.9 99.9 202504306061SWPM4 09 -16.7 999.9 999 99.9 99.9 999 9999.9 9999.9 99.9 99.9 99.9 202504306121SWPM4 09 -17.9 999.9 999 99.9 99.9 999 9999.9 9999.9 99.9 99.9 99.9 202504306181SWPM4 09 -17.3 999.9 999 99.9 99.9 999 9999.9 9999.9 99.9 99.9 99.9 202504306241SWPM4 09 -17.1 999.9 0 0.0 0.5 999 9999.9 1023.9 99.9 99.9 99.9 202504306301SWPM4 09 -16.8 999.9 180 1.0 1.5 999 9999.9 1023.9 99.9 99.9 99.9 202504306361SWPM4 09 999.9 999.9 999 99.9 99.9 999 9999.9 1023.9 99.9 99.9 99.9 202504306421SWPM4 09 999.9 999.9 999 99.9 99.9 999 9999.9 1024.0 99.9 99.9 99.9 202504306481SWPM4 09 999.9 999.9 999 99.9 99.9 999 9999.9 1024.2 99.9 99.9 99.9 202504306541SWPM4 09 -17.0 999.9 90 2.1 2.6 999 9999.9 1024.2 99.9 99.9 99.9 202504307001SWPM4 09 -17.1 999.9 50 2.6 2.6 999 9999.9 1024.2 99.9 99.9 99.9 202504307061SWPM4 09 -17.0 999.9 999 99.9 99.9 999 9999.9 9999.9 99.9 99.9 99.9 202504307121SWPM4 09 -17.3 999.9 999 99.9 99.9 999 9999.9 9999.9 99.9 99.9 99.9 202504307181SWPM4 09 -17.0 999.9 999 99.9 99.9 999 9999.9 9999.9 99.9 99.9 99.9 202504307241SWPM4 09 -17.1 999.9 80 1.5 2.1 999 9999.9 1024.4 99.9 99.9 99.9 202504307301SWPM4 09 -17.0 999.9 80 2.1 2.1 999 9999.9 1024.4 99.9 99.9 99.9 202504307361SWPM4 09 999.9 999.9 999 99.9 99.9 999 9999.9 1024.5 99.9 99.9 99.9 202504307421SWPM4 09 999.9 999.9 999 99.9 99.9 999 9999.9 1024.4 99.9 99.9 99.9 202504307481SWPM4 09 999.9 999.9 999 99.9 99.9 999 9999.9 1024.4 99.9 99.9 99.9
  New Graph (click on parameter):                                      
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