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Realtime Great Lakes Weather Data and Marine Observations

 GSLM4: NWS GravellyShoalsMI                                  
CMAN Station
Lat: 44.02°, Lon: -83.54°
Elevation: 179 m
Anemometer Height: 25 m
Related Site: NDBC

Current Time: 1641 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 (341)
 (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
202434100001GSLM4   29  -3.7 999.9 290  8.7 10.3 999 9999.9 1021.7 99.9 99.9 99.9             
202434100101GSLM4   29  -3.9 999.9 300  8.7  9.8 999 9999.9 1022.0 99.9 99.9 99.9             
202434100201GSLM4   29  -3.9 999.9 300  8.7 10.8 999 9999.9 1022.0 99.9 99.9 99.9             
202434100301GSLM4   29  -3.7 999.9 290  8.2 10.3 999 9999.9 1022.0 99.9 99.9 99.9             
202434100401GSLM4   29  -3.9 999.9 290  8.2 10.8 999 9999.9 1022.4 99.9 99.9 99.9             
202434100501GSLM4   29  -4.0 999.9 300  8.2  9.8 999 9999.9 1022.4 99.9 99.9 99.9             
202434101001GSLM4   29  -4.0 999.9 300  8.2 10.3 999 9999.9 1022.4 99.9 99.9 99.9             
202434101101GSLM4   29  -4.1 999.9 300  7.7  9.3 999 9999.9 1022.7 99.9 99.9 99.9             
202434101201GSLM4   29  -4.2 999.9 300  8.2  9.8 999 9999.9 1023.0 99.9 99.9 99.9             
202434101301GSLM4   29  -4.4 999.9 290  7.2  9.8 999 9999.9 1023.0 99.9 99.9 99.9             
202434101401GSLM4   29  -4.6 999.9 290  7.2  9.3 999 9999.9 1023.4 99.9 99.9 99.9             
202434101501GSLM4   29  -4.7 999.9 290  7.2  8.7 999 9999.9 1023.4 99.9 99.9 99.9             
202434102001GSLM4   29  -4.8 999.9 290  6.7  8.2 999 9999.9 1023.4 99.9 99.9 99.9             
202434102101GSLM4   29  -5.0 999.9 290  6.2  7.7 999 9999.9 1023.4 99.9 99.9 99.9             
202434102201GSLM4   29  -5.1 999.9 300  5.7  7.2 999 9999.9 1023.4 99.9 99.9 99.9             
202434102401GSLM4   29  -5.2 999.9 300  5.7  6.7 999 9999.9 1023.7 99.9 99.9 99.9             
202434102501GSLM4   29  -5.2 999.9 290  5.7  7.2 999 9999.9 1023.7 99.9 99.9 99.9             
202434103001GSLM4   29  -5.4 999.9 290  5.7  7.2 999 9999.9 1024.0 99.9 99.9 99.9             
202434103101GSLM4   29  -5.3 999.9 290  6.2  7.2 999 9999.9 1024.0 99.9 99.9 99.9             
202434103201GSLM4   29  -5.2 999.9 290  6.7  7.2 999 9999.9 1024.0 99.9 99.9 99.9             
202434103301GSLM4   29  -5.2 999.9 280  6.2  8.2 999 9999.9 1024.0 99.9 99.9 99.9             
202434103401GSLM4   29  -5.4 999.9 280  6.2  7.7 999 9999.9 1024.0 99.9 99.9 99.9             
202434103501GSLM4   29  -5.3 999.9 280  5.1  8.2 999 9999.9 1024.0 99.9 99.9 99.9             
202434104001GSLM4   29  -5.4 999.9 280  5.7  7.2 999 9999.9 1024.0 99.9 99.9 99.9             
202434104101GSLM4   29  -5.5 999.9 280  6.2  7.2 999 9999.9 1024.0 99.9 99.9 99.9             
202434104201GSLM4   29  -5.5 999.9 260  7.2  8.2 999 9999.9 1023.7 99.9 99.9 99.9             
202434104301GSLM4   29  -6.0 999.9 270  6.7  8.2 999 9999.9 1024.0 99.9 99.9 99.9             
202434104401GSLM4   29  -5.9 999.9 270  6.7  8.2 999 9999.9 1024.0 99.9 99.9 99.9             
202434104501GSLM4   29  -5.8 999.9 270  7.2  8.2 999 9999.9 1024.0 99.9 99.9 99.9             
202434105001GSLM4   29  -5.9 999.9 270  7.2  8.2 999 9999.9 1024.0 99.9 99.9 99.9             
202434105101GSLM4   29  -5.6 999.9 270  7.7  8.7 999 9999.9 1024.0 99.9 99.9 99.9             
202434105201GSLM4   29  -5.5 999.9 270  8.2  9.3 999 9999.9 1024.0 99.9 99.9 99.9             
202434105301GSLM4   29  -5.4 999.9 270  7.7  8.7 999 9999.9 1024.0 99.9 99.9 99.9             
202434105401GSLM4   29  -5.4 999.9 260  8.7  9.8 999 9999.9 1024.0 99.9 99.9 99.9             
202434105501GSLM4   29  -5.3 999.9 270  8.7 10.8 999 9999.9 1024.0 99.9 99.9 99.9             
202434106001GSLM4   29  -5.4 999.9 270  8.7  9.8 999 9999.9 1024.0 99.9 99.9 99.9             
202434106101GSLM4   29  -5.4 999.9 270  8.2  9.8 999 9999.9 1024.0 99.9 99.9 99.9             
202434106201GSLM4   29  -5.2 999.9 270  8.2  9.3 999 9999.9 1024.0 99.9 99.9 99.9             
202434106301GSLM4   29  -5.2 999.9 270  7.7  9.3 999 9999.9 1024.0 99.9 99.9 99.9             
202434106401GSLM4   29  -5.2 999.9 270  7.2  8.7 999 9999.9 1023.7 99.9 99.9 99.9             
202434106501GSLM4   29  -5.3 999.9 260  7.2  8.7 999 9999.9 1023.7 99.9 99.9 99.9             
202434107001GSLM4   29  -5.1 999.9 260  8.2  9.3 999 9999.9 1023.7 99.9 99.9 99.9             
202434107101GSLM4   29  -5.2 999.9 260  8.2  9.3 999 9999.9 1023.7 99.9 99.9 99.9             
202434107201GSLM4   29  -5.3 999.9 270  7.2  8.7 999 9999.9 1023.7 99.9 99.9 99.9             
202434107301GSLM4   29  -5.5 999.9 260  7.7  9.3 999 9999.9 1024.0 99.9 99.9 99.9             
202434107401GSLM4   29  -5.5 999.9 260  8.7 10.3 999 9999.9 1024.0 99.9 99.9 99.9             
202434108001GSLM4   29  -5.2 999.9 260  8.7  9.8 999 9999.9 1024.0 99.9 99.9 99.9             
202434108101GSLM4   29  -4.9 999.9 260  8.7  9.8 999 9999.9 1024.0 99.9 99.9 99.9             
202434108201GSLM4   29  -4.9 999.9 260  8.2  9.8 999 9999.9 1024.0 99.9 99.9 99.9             
202434108301GSLM4   29  -5.1 999.9 260  8.7  9.8 999 9999.9 1023.7 99.9 99.9 99.9             
202434108401GSLM4   29  -4.7 999.9 260  8.7  9.3 999 9999.9 1023.7 99.9 99.9 99.9             
202434108501GSLM4   29  -4.5 999.9 260  8.2  9.3 999 9999.9 1023.7 99.9 99.9 99.9             
202434109001GSLM4   29  -4.7 999.9 260  7.7  9.3 999 9999.9 1023.7 99.9 99.9 99.9             
202434109101GSLM4   29  -4.6 999.9 250  8.2  9.3 999 9999.9 1023.7 99.9 99.9 99.9             
202434109201GSLM4   29  -4.2 999.9 260  8.2  9.8 999 9999.9 1023.7 99.9 99.9 99.9             
202434109301GSLM4   29  -4.0 999.9 250  7.7  9.8 999 9999.9 1023.7 99.9 99.9 99.9             
202434109401GSLM4   29  -4.2 999.9 250  8.7  9.8 999 9999.9 1023.7 99.9 99.9 99.9             
202434109501GSLM4   29  -4.2 999.9 250  8.7  9.8 999 9999.9 1023.7 99.9 99.9 99.9             
202434110001GSLM4   29  -4.4 999.9 250  9.3 10.3 999 9999.9 1023.7 99.9 99.9 99.9             
202434110101GSLM4   29  -4.2 999.9 250  7.7  9.8 999 9999.9 1023.4 99.9 99.9 99.9             
202434110201GSLM4   29  -4.3 999.9 250  8.7 10.3 999 9999.9 1023.4 99.9 99.9 99.9             
202434110301GSLM4   29  -4.5 999.9 250  8.2  9.8 999 9999.9 1023.4 99.9 99.9 99.9             
202434110401GSLM4   29  -4.7 999.9 250  9.8 10.8 999 9999.9 1023.4 99.9 99.9 99.9             
202434110501GSLM4   29  -4.8 999.9 260  9.8 11.3 999 9999.9 1023.0 99.9 99.9 99.9             
202434111001GSLM4   29  -4.8 999.9 260 10.8 12.3 999 9999.9 1023.0 99.9 99.9 99.9             
202434111101GSLM4   29  -4.7 999.9 260 10.3 11.8 999 9999.9 1023.0 99.9 99.9 99.9             
202434111201GSLM4   29  -4.5 999.9 260 10.8 13.9 999 9999.9 1023.0 99.9 99.9 99.9             
202434111301GSLM4   29  -4.8 999.9 260 11.8 13.9 999 9999.9 1023.0 99.9 99.9 99.9             
202434111401GSLM4   29  -4.8 999.9 260 11.8 13.4 999 9999.9 1022.7 99.9 99.9 99.9             
202434112501GSLM4   29  -4.3 999.9 250 11.8 13.4 999 9999.9 1022.7 99.9 99.9 99.9             
202434113001GSLM4   29  -3.8 999.9 250 11.8 12.9 999 9999.9 1022.7 99.9 99.9 99.9             
202434113201GSLM4   29  -4.3 999.9 250 10.8 12.9 999 9999.9 1022.7 99.9 99.9 99.9             
202434113301GSLM4   29  -4.3 999.9 240 11.3 12.9 999 9999.9 1022.7 99.9 99.9 99.9             
202434113401GSLM4   29  -4.2 999.9 240 11.8 12.9 999 9999.9 1022.7 99.9 99.9 99.9             
202434113501GSLM4   29  -4.1 999.9 240 11.8 12.9 999 9999.9 1022.7 99.9 99.9 99.9             
202434114001GSLM4   29  -4.0 999.9 230 10.8 13.4 999 9999.9 1022.7 99.9 99.9 99.9             
202434114101GSLM4   29  -4.0 999.9 240 12.3 13.9 999 9999.9 1022.7 99.9 99.9 99.9             
202434114201GSLM4   29  -4.0 999.9 240 11.3 13.9 999 9999.9 1022.7 99.9 99.9 99.9             
202434114301GSLM4   29  -3.8 999.9 240 12.3 13.9 999 9999.9 1022.7 99.9 99.9 99.9             
202434114401GSLM4   29  -3.7 999.9 240 13.4 16.5 999 9999.9 1022.4 99.9 99.9 99.9             
202434114501GSLM4   29  -3.8 999.9 240 13.4 14.9 999 9999.9 1022.4 99.9 99.9 99.9             
202434115001GSLM4   29  -3.7 999.9 240 12.3 14.4 999 9999.9 1022.4 99.9 99.9 99.9             
202434115101GSLM4   29  -3.6 999.9 250 12.9 15.4 999 9999.9 1022.4 99.9 99.9 99.9             
202434115201GSLM4   29  -3.7 999.9 240 12.3 14.4 999 9999.9 1022.7 99.9 99.9 99.9             
202434115301GSLM4   29  -3.7 999.9 240 11.3 12.9 999 9999.9 1022.7 99.9 99.9 99.9             
202434115401GSLM4   29  -3.7 999.9 230  9.8 13.4 999 9999.9 1022.4 99.9 99.9 99.9
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This Web page created and maintained by Greg Lang, NOAA/GLERL,
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