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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: 0521 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 (115)
 (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 202511500001SWPM4 09 39.9 999.9 330 6.0 8.9 999 9999.9 30.20 33.4 99.9 99.9 202511500061SWPM4 09 39.7 999.9 310 5.1 8.0 999 9999.9 30.20 33.4 99.9 99.9 202511500121SWPM4 09 39.9 999.9 300 7.0 8.0 999 9999.9 30.20 33.6 99.9 99.9 202511500181SWPM4 09 39.9 999.9 310 6.0 9.9 999 9999.9 30.19 33.6 99.9 99.9 202511500241SWPM4 09 39.9 999.9 310 6.0 8.0 999 9999.9 30.19 33.6 99.9 99.9 202511500301SWPM4 09 39.7 999.9 320 8.0 12.1 999 9999.9 30.19 33.6 99.9 99.9 202511500361SWPM4 09 999.9 999.9 330 8.0 11.1 999 9999.9 30.19 33.6 99.9 99.9 202511500421SWPM4 09 999.9 999.9 330 6.0 8.9 999 9999.9 30.19 33.6 99.9 99.9 202511500481SWPM4 09 999.9 999.9 320 8.0 12.1 999 9999.9 30.19 33.6 99.9 99.9 202511500541SWPM4 09 39.2 999.9 310 5.1 9.9 999 9999.9 30.19 33.6 99.9 99.9 202511501001SWPM4 09 39.4 999.9 300 7.0 8.9 999 9999.9 30.19 33.8 99.9 99.9 202511501061SWPM4 09 39.6 999.9 310 7.0 8.9 999 9999.9 30.19 33.6 99.9 99.9 202511501121SWPM4 09 39.7 999.9 310 7.0 9.9 999 9999.9 30.19 33.6 99.9 99.9 202511501181SWPM4 09 39.6 999.9 300 6.0 8.0 999 9999.9 30.19 33.6 99.9 99.9 202511501241SWPM4 09 39.2 999.9 320 5.1 8.0 999 9999.9 30.19 33.6 99.9 99.9 202511501301SWPM4 09 39.4 999.9 310 7.0 8.9 999 9999.9 30.19 33.6 99.9 99.9 202511501361SWPM4 09 999.9 999.9 310 6.0 8.0 999 9999.9 30.19 33.6 99.9 99.9 202511501421SWPM4 09 999.9 999.9 300 6.0 8.0 999 9999.9 30.19 33.6 99.9 99.9 202511501481SWPM4 09 999.9 999.9 310 7.0 8.0 999 9999.9 30.19 33.6 99.9 99.9 202511501541SWPM4 09 39.0 999.9 310 6.0 7.0 999 9999.9 30.18 33.6 99.9 99.9 202511502001SWPM4 09 38.8 999.9 300 4.1 7.0 999 9999.9 30.18 33.6 99.9 99.9 202511502061SWPM4 09 38.8 999.9 310 5.1 6.0 999 9999.9 30.18 33.6 99.9 99.9 202511502121SWPM4 09 38.8 999.9 310 5.1 6.0 999 9999.9 30.18 33.6 99.9 99.9 202511502181SWPM4 09 38.7 999.9 310 5.1 6.0 999 9999.9 30.18 33.6 99.9 99.9 202511502241SWPM4 09 38.5 999.9 300 5.1 6.0 999 9999.9 30.18 33.6 99.9 99.9 202511502301SWPM4 09 38.5 999.9 300 5.1 7.0 999 9999.9 30.18 33.6 99.9 99.9 202511502361SWPM4 09 37.4 999.9 300 2.9 7.0 999 9999.9 30.19 33.6 99.9 99.9 202511502421SWPM4 09 37.0 999.9 290 4.1 6.0 999 9999.9 30.19 33.6 99.9 99.9 202511502481SWPM4 09 36.3 999.9 250 1.9 4.1 999 9999.9 30.18 33.6 99.9 99.9 202511502541SWPM4 09 36.1 999.9 240 2.9 4.1 999 9999.9 30.18 33.6 99.9 99.9 202511503001SWPM4 09 36.3 999.9 260 5.1 5.1 999 9999.9 30.18 33.6 99.9 99.9 202511503061SWPM4 09 35.8 999.9 260 2.9 5.1 999 9999.9 30.18 33.6 99.9 99.9 202511503121SWPM4 09 36.0 999.9 270 4.1 4.1 999 9999.9 30.18 33.6 99.9 99.9 202511503181SWPM4 09 35.6 999.9 260 2.9 4.1 999 9999.9 30.18 33.6 99.9 99.9 202511503241SWPM4 09 35.8 999.9 260 2.9 4.1 999 9999.9 30.17 33.6 99.9 99.9 202511503301SWPM4 09 35.1 999.9 250 4.1 4.1 999 9999.9 30.17 33.6 99.9 99.9
  New Graph (click on parameter):                                      
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