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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: 0817 GMT
Station Types
(Click on name to view all stations for that type)
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Red MarkerCMAN & USCG Stations
Yellow MarkerShip Reports
Green MarkerSurface Airways Stations

  Change Units to: English | Metric
 Enter New DOY (001-366):  Or Today (142)
 (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 202414200001GSLM4 29 69.4 999.9 130 9.9 9.9 999 9999.9 29.84 99.9 99.9 99.9 202414200101GSLM4 29 69.4 999.9 130 8.9 9.9 999 9999.9 29.84 99.9 99.9 99.9 202414200201GSLM4 29 70.0 999.9 130 8.9 9.9 999 9999.9 29.84 99.9 99.9 99.9 202414200301GSLM4 29 69.8 999.9 140 8.9 11.1 999 9999.9 29.84 99.9 99.9 99.9 202414200401GSLM4 29 69.1 999.9 140 8.9 11.1 999 9999.9 29.84 99.9 99.9 99.9 202414200501GSLM4 29 68.9 999.9 140 8.0 9.9 999 9999.9 29.84 99.9 99.9 99.9 202414201001GSLM4 29 68.7 999.9 130 8.9 9.9 999 9999.9 29.84 99.9 99.9 99.9 202414201101GSLM4 29 68.9 999.9 130 8.9 9.9 999 9999.9 29.84 99.9 99.9 99.9 202414201201GSLM4 29 68.5 999.9 130 8.9 9.9 999 9999.9 29.84 99.9 99.9 99.9 202414201301GSLM4 29 68.4 999.9 130 11.1 12.1 999 9999.9 29.84 99.9 99.9 99.9 202414201401GSLM4 29 69.4 999.9 140 14.0 14.0 999 9999.9 29.84 99.9 99.9 99.9 202414201501GSLM4 29 69.4 999.9 160 8.9 15.0 999 9999.9 29.87 99.9 99.9 99.9 202414202001GSLM4 29 68.9 999.9 280 29.0 33.0 999 9999.9 29.86 99.9 99.9 99.9 202414202101GSLM4 29 65.8 999.9 280 27.0 41.0 999 9999.9 29.87 99.9 99.9 99.9 202414202201GSLM4 29 63.7 999.9 290 21.0 28.0 999 9999.9 29.88 99.9 99.9 99.9 202414202301GSLM4 29 63.1 999.9 290 21.0 25.1 999 9999.9 29.88 99.9 99.9 99.9 202414202401GSLM4 29 62.6 999.9 300 15.9 22.0 999 9999.9 29.89 99.9 99.9 99.9 202414202501GSLM4 29 62.8 999.9 280 15.9 25.1 999 9999.9 29.90 99.9 99.9 99.9 202414203001GSLM4 29 62.4 999.9 340 9.9 14.0 999 9999.9 29.87 99.9 99.9 99.9 202414203101GSLM4 29 61.9 999.9 360 13.0 14.0 999 9999.9 29.85 99.9 99.9 99.9 202414203201GSLM4 29 61.7 999.9 360 11.1 15.0 999 9999.9 29.86 99.9 99.9 99.9 202414203301GSLM4 29 61.2 999.9 10 11.1 13.0 999 9999.9 29.86 99.9 99.9 99.9 202414203401GSLM4 29 61.5 999.9 40 11.1 12.1 999 9999.9 29.88 99.9 99.9 99.9 202414203501GSLM4 29 61.2 999.9 50 14.0 15.9 999 9999.9 29.87 99.9 99.9 99.9 202414204001GSLM4 29 61.5 999.9 50 9.9 15.9 999 9999.9 29.88 99.9 99.9 99.9 202414204101GSLM4 29 61.7 999.9 50 9.9 11.1 999 9999.9 29.87 99.9 99.9 99.9 202414204201GSLM4 29 60.8 999.9 60 9.9 12.1 999 9999.9 29.88 99.9 99.9 99.9 202414204301GSLM4 29 60.4 999.9 40 8.9 12.1 999 9999.9 29.87 99.9 99.9 99.9 202414204401GSLM4 29 60.6 999.9 40 11.1 12.1 999 9999.9 29.87 99.9 99.9 99.9 202414204501GSLM4 29 60.6 999.9 50 7.0 11.1 999 9999.9 29.87 99.9 99.9 99.9 202414205001GSLM4 29 60.8 999.9 40 12.1 13.0 999 9999.9 29.84 99.9 99.9 99.9 202414205101GSLM4 29 60.6 999.9 60 8.9 14.0 999 9999.9 29.85 99.9 99.9 99.9 202414205201GSLM4 29 60.3 999.9 70 11.1 13.0 999 9999.9 29.85 99.9 99.9 99.9 202414205301GSLM4 29 60.3 999.9 70 11.1 12.1 999 9999.9 29.84 99.9 99.9 99.9 202414205401GSLM4 29 60.4 999.9 90 12.1 13.0 999 9999.9 29.84 99.9 99.9 99.9 202414205501GSLM4 29 60.1 999.9 90 14.0 15.0 999 9999.9 29.84 99.9 99.9 99.9 202414206001GSLM4 29 59.5 999.9 80 15.0 15.9 999 9999.9 29.83 99.9 99.9 99.9 202414206101GSLM4 29 59.5 999.9 80 13.0 15.0 999 9999.9 29.83 99.9 99.9 99.9 202414206201GSLM4 29 59.4 999.9 90 15.0 15.9 999 9999.9 29.82 99.9 99.9 99.9 202414206301GSLM4 29 59.2 999.9 80 15.9 16.9 999 9999.9 29.82 99.9 99.9 99.9 202414206401GSLM4 29 59.4 999.9 80 15.0 18.1 999 9999.9 29.82 99.9 99.9 99.9
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