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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: 2155 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 (174)
 (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 202417400001GSLM4 29 65.3 999.9 30 12.1 13.0 999 9999.9 30.12 99.9 99.9 99.9 202417400101GSLM4 29 65.5 999.9 30 9.9 13.0 999 9999.9 30.12 99.9 99.9 99.9 202417400201GSLM4 29 65.5 999.9 40 11.1 12.1 999 9999.9 30.12 99.9 99.9 99.9 202417400301GSLM4 29 65.1 999.9 40 11.1 12.1 999 9999.9 30.13 99.9 99.9 99.9 202417400401GSLM4 29 65.5 999.9 40 11.1 13.0 999 9999.9 30.13 99.9 99.9 99.9 202417400501GSLM4 29 65.1 999.9 60 11.1 13.0 999 9999.9 30.13 99.9 99.9 99.9 202417401001GSLM4 29 65.5 999.9 60 8.9 11.1 999 9999.9 30.13 99.9 99.9 99.9 202417401101GSLM4 29 65.5 999.9 50 9.9 11.1 999 9999.9 30.12 99.9 99.9 99.9 202417401201GSLM4 29 65.7 999.9 60 8.9 9.9 999 9999.9 30.12 99.9 99.9 99.9 202417401301GSLM4 29 65.7 999.9 50 8.9 9.9 999 9999.9 30.12 99.9 99.9 99.9 202417401401GSLM4 29 65.8 999.9 30 9.9 11.1 999 9999.9 30.13 99.9 99.9 99.9 202417401501GSLM4 29 65.7 999.9 20 11.1 12.1 999 9999.9 30.13 99.9 99.9 99.9 202417402001GSLM4 29 65.1 999.9 40 11.1 12.1 999 9999.9 30.13 99.9 99.9 99.9 202417402101GSLM4 29 64.9 999.9 50 11.1 12.1 999 9999.9 30.12 99.9 99.9 99.9 202417402201GSLM4 29 65.3 999.9 50 9.9 12.1 999 9999.9 30.13 99.9 99.9 99.9 202417402301GSLM4 29 65.3 999.9 30 8.9 11.1 999 9999.9 30.13 99.9 99.9 99.9 202417402401GSLM4 29 65.1 999.9 10 11.1 12.1 999 9999.9 30.12 99.9 99.9 99.9 202417402501GSLM4 29 64.8 999.9 30 11.1 12.1 999 9999.9 30.12 99.9 99.9 99.9 202417403001GSLM4 29 64.6 999.9 40 12.1 13.0 999 9999.9 30.11 99.9 99.9 99.9 202417403101GSLM4 29 64.6 999.9 60 11.1 12.1 999 9999.9 30.11 99.9 99.9 99.9 202417403201GSLM4 29 64.8 999.9 60 8.9 11.1 999 9999.9 30.11 99.9 99.9 99.9 202417403301GSLM4 29 65.3 999.9 70 8.0 9.9 999 9999.9 30.10 99.9 99.9 99.9 202417403401GSLM4 29 65.7 999.9 70 8.9 8.9 999 9999.9 30.10 99.9 99.9 99.9 202417403501GSLM4 29 66.0 999.9 50 7.0 8.0 999 9999.9 30.10 99.9 99.9 99.9 202417404001GSLM4 29 66.6 999.9 70 8.0 8.9 999 9999.9 30.09 99.9 99.9 99.9 202417404101GSLM4 29 66.7 999.9 70 7.0 8.9 999 9999.9 30.09 99.9 99.9 99.9 202417404201GSLM4 29 66.7 999.9 60 7.0 8.9 999 9999.9 30.09 99.9 99.9 99.9 202417404301GSLM4 29 66.7 999.9 60 7.0 8.0 999 9999.9 30.09 99.9 99.9 99.9 202417404401GSLM4 29 66.7 999.9 50 6.0 7.0 999 9999.9 30.08 99.9 99.9 99.9 202417404501GSLM4 29 66.6 999.9 30 8.0 8.0 999 9999.9 30.08 99.9 99.9 99.9 202417405001GSLM4 29 66.4 999.9 40 7.0 8.0 999 9999.9 30.08 99.9 99.9 99.9 202417405101GSLM4 29 66.0 999.9 30 5.1 7.0 999 9999.9 30.09 99.9 99.9 99.9 202417405201GSLM4 29 65.8 999.9 20 6.0 7.0 999 9999.9 30.09 99.9 99.9 99.9 202417405301GSLM4 29 65.7 999.9 360 7.0 7.0 999 9999.9 30.09 99.9 99.9 99.9 202417405401GSLM4 29 65.5 999.9 350 9.9 9.9 999 9999.9 30.09 99.9 99.9 99.9 202417405501GSLM4 29 65.1 999.9 350 11.1 12.1 999 9999.9 30.09 99.9 99.9 99.9 202417406001GSLM4 29 64.9 999.9 10 11.1 12.1 999 9999.9 30.08 99.9 99.9 99.9 202417406101GSLM4 29 64.6 999.9 10 12.1 13.0 999 9999.9 30.08 99.9 99.9 99.9 202417406201GSLM4 29 64.6 999.9 20 12.1 12.1 999 9999.9 30.08 99.9 99.9 99.9 202417406301GSLM4 29 64.2 999.9 20 11.1 13.0 999 9999.9 30.08 99.9 99.9 99.9 202417406401GSLM4 29 64.2 999.9 20 11.1 12.1 999 9999.9 30.08 99.9 99.9 99.9 202417406501GSLM4 29 64.2 999.9 30 11.1 12.1 999 9999.9 30.07 99.9 99.9 99.9 202417407001GSLM4 29 64.0 999.9 40 11.1 12.1 999 9999.9 30.07 99.9 99.9 99.9 202417407101GSLM4 29 64.0 999.9 40 9.9 12.1 999 9999.9 30.07 99.9 99.9 99.9 202417407201GSLM4 29 64.0 999.9 30 11.1 12.1 999 9999.9 30.07 99.9 99.9 99.9 202417407301GSLM4 29 64.2 999.9 30 11.1 12.1 999 9999.9 30.07 99.9 99.9 99.9 202417407401GSLM4 29 64.2 999.9 30 11.1 13.0 999 9999.9 30.07 99.9 99.9 99.9 202417407501GSLM4 29 64.0 999.9 40 11.1 12.1 999 9999.9 30.07 99.9 99.9 99.9 202417408001GSLM4 29 64.2 999.9 30 9.9 12.1 999 9999.9 30.06 99.9 99.9 99.9 202417408101GSLM4 29 64.0 999.9 30 9.9 12.1 999 9999.9 30.06 99.9 99.9 99.9 202417408201GSLM4 29 64.2 999.9 40 9.9 11.1 999 9999.9 30.06 99.9 99.9 99.9 202417408301GSLM4 29 64.2 999.9 40 9.9 11.1 999 9999.9 30.06 99.9 99.9 99.9 202417408401GSLM4 29 64.4 999.9 40 9.9 11.1 999 9999.9 30.05 99.9 99.9 99.9 202417408501GSLM4 29 64.6 999.9 50 9.9 11.1 999 9999.9 30.06 99.9 99.9 99.9 202417409001GSLM4 29 64.6 999.9 50 9.9 11.1 999 9999.9 30.05 99.9 99.9 99.9 202417409101GSLM4 29 64.8 999.9 40 9.9 11.1 999 9999.9 30.05 99.9 99.9 99.9 202417409201GSLM4 29 64.9 999.9 50 9.9 11.1 999 9999.9 30.05 99.9 99.9 99.9 202417409301GSLM4 29 64.9 999.9 50 9.9 12.1 999 9999.9 30.05 99.9 99.9 99.9 202417409401GSLM4 29 65.1 999.9 50 11.1 12.1 999 9999.9 30.04 99.9 99.9 99.9 202417409501GSLM4 29 65.1 999.9 50 12.1 13.0 999 9999.9 30.04 99.9 99.9 99.9 202417410001GSLM4 29 65.5 999.9 50 11.1 13.0 999 9999.9 30.04 99.9 99.9 99.9 202417410101GSLM4 29 65.3 999.9 50 11.1 12.1 999 9999.9 30.05 99.9 99.9 99.9 202417410201GSLM4 29 64.9 999.9 40 11.1 12.1 999 9999.9 30.05 99.9 99.9 99.9 202417410301GSLM4 29 64.9 999.9 50 9.9 12.1 999 9999.9 30.05 99.9 99.9 99.9 202417410401GSLM4 29 64.9 999.9 60 9.9 12.1 999 9999.9 30.04 99.9 99.9 99.9 202417410501GSLM4 29 65.1 999.9 60 9.9 12.1 999 9999.9 30.04 99.9 99.9 99.9 202417411001GSLM4 29 65.5 999.9 70 11.1 12.1 999 9999.9 30.03 99.9 99.9 99.9 202417411101GSLM4 29 65.3 999.9 60 11.1 12.1 999 9999.9 30.03 99.9 99.9 99.9 202417411201GSLM4 29 65.5 999.9 70 11.1 12.1 999 9999.9 30.03 99.9 99.9 99.9 202417411301GSLM4 29 65.5 999.9 60 11.1 12.1 999 9999.9 30.03 99.9 99.9 99.9 202417411401GSLM4 29 65.5 999.9 60 12.1 13.0 999 9999.9 30.02 99.9 99.9 99.9 202417411501GSLM4 29 65.7 999.9 60 11.1 12.1 999 9999.9 30.02 99.9 99.9 99.9 202417412001GSLM4 29 65.7 999.9 60 11.1 12.1 999 9999.9 30.02 99.9 99.9 99.9 202417412101GSLM4 29 65.8 999.9 60 11.1 12.1 999 9999.9 30.02 99.9 99.9 99.9 202417412201GSLM4 29 65.8 999.9 60 9.9 12.1 999 9999.9 30.02 99.9 99.9 99.9 202417412301GSLM4 29 66.0 999.9 60 9.9 11.1 999 9999.9 30.02 99.9 99.9 99.9 202417412401GSLM4 29 66.0 999.9 60 8.9 12.1 999 9999.9 30.02 99.9 99.9 99.9 202417412501GSLM4 29 66.0 999.9 60 8.9 11.1 999 9999.9 30.01 99.9 99.9 99.9 202417413001GSLM4 29 66.0 999.9 70 8.0 9.9 999 9999.9 30.01 99.9 99.9 99.9 202417413101GSLM4 29 66.2 999.9 70 8.0 9.9 999 9999.9 30.01 99.9 99.9 99.9 202417413201GSLM4 29 66.6 999.9 80 7.0 8.9 999 9999.9 30.01 99.9 99.9 99.9 202417413301GSLM4 29 66.7 999.9 80 6.0 8.0 999 9999.9 30.00 99.9 99.9 99.9 202417413401GSLM4 29 66.9 999.9 70 6.0 6.0 999 9999.9 30.00 99.9 99.9 99.9 202417413501GSLM4 29 67.1 999.9 70 6.0 7.0 999 9999.9 29.99 99.9 99.9 99.9 202417414001GSLM4 29 67.3 999.9 70 6.0 8.0 999 9999.9 29.99 99.9 99.9 99.9 202417414101GSLM4 29 67.6 999.9 90 2.9 7.0 999 9999.9 30.00 99.9 99.9 99.9 202417414201GSLM4 29 68.0 999.9 50 1.9 4.1 999 9999.9 30.00 99.9 99.9 99.9 202417414301GSLM4 29 68.5 999.9 0 0.0 1.9 999 9999.9 30.00 99.9 99.9 99.9 202417414401GSLM4 29 68.9 999.9 0 0.0 1.9 999 9999.9 29.99 99.9 99.9 99.9 202417414501GSLM4 29 68.9 999.9 0 0.0 1.9 999 9999.9 29.99 99.9 99.9 99.9 202417415001GSLM4 29 68.5 999.9 40 2.9 2.9 999 9999.9 29.98 99.9 99.9 99.9 202417415101GSLM4 29 68.2 999.9 340 2.9 4.1 999 9999.9 29.98 99.9 99.9 99.9 202417415201GSLM4 29 68.4 999.9 50 1.9 2.9 999 9999.9 29.98 99.9 99.9 99.9 202417415301GSLM4 29 68.5 999.9 0 0.0 1.9 999 9999.9 29.97 99.9 99.9 99.9 202417415401GSLM4 29 68.2 999.9 10 5.1 6.0 999 9999.9 29.96 99.9 99.9 99.9 202417415501GSLM4 29 68.0 999.9 30 5.1 6.0 999 9999.9 29.96 99.9 99.9 99.9 202417416001GSLM4 29 67.8 999.9 20 4.1 6.0 999 9999.9 29.96 99.9 99.9 99.9 202417416101GSLM4 29 68.0 999.9 20 2.9 4.1 999 9999.9 29.96 99.9 99.9 99.9 202417416201GSLM4 29 67.8 999.9 340 4.1 5.1 999 9999.9 29.96 99.9 99.9 99.9 202417416301GSLM4 29 67.5 999.9 340 4.1 5.1 999 9999.9 29.96 99.9 99.9 99.9 202417416401GSLM4 29 67.1 999.9 340 6.0 6.0 999 9999.9 29.95 99.9 99.9 99.9 202417416501GSLM4 29 66.6 999.9 350 6.0 7.0 999 9999.9 29.95 99.9 99.9 99.9 202417417001GSLM4 29 66.6 999.9 10 4.1 7.0 999 9999.9 29.94 99.9 99.9 99.9 202417417101GSLM4 29 66.7 999.9 360 6.0 7.0 999 9999.9 29.94 99.9 99.9 99.9 202417417201GSLM4 29 66.9 999.9 10 5.1 7.0 999 9999.9 29.93 99.9 99.9 99.9 202417417301GSLM4 29 66.9 999.9 40 5.1 6.0 999 9999.9 29.93 99.9 99.9 99.9 202417417401GSLM4 29 66.9 999.9 10 2.9 4.1 999 9999.9 29.93 99.9 99.9 99.9 202417417501GSLM4 29 66.9 999.9 350 4.1 5.1 999 9999.9 29.93 99.9 99.9 99.9 202417418001GSLM4 29 66.9 999.9 340 6.0 6.0 999 9999.9 29.93 99.9 99.9 99.9 202417418101GSLM4 29 67.3 999.9 350 4.1 7.0 999 9999.9 29.92 99.9 99.9 99.9 202417418201GSLM4 29 67.3 999.9 360 4.1 6.0 999 9999.9 29.92 99.9 99.9 99.9 202417418301GSLM4 29 67.5 999.9 10 5.1 5.1 999 9999.9 29.91 99.9 99.9 99.9 202417418401GSLM4 29 67.5 999.9 10 5.1 6.0 999 9999.9 29.91 99.9 99.9 99.9 202417418501GSLM4 29 67.5 999.9 20 6.0 6.0 999 9999.9 29.90 99.9 99.9 99.9 202417419001GSLM4 29 67.5 999.9 30 7.0 7.0 999 9999.9 29.89 99.9 99.9 99.9 202417419101GSLM4 29 67.5 999.9 30 7.0 8.0 999 9999.9 29.88 99.9 99.9 99.9 202417419201GSLM4 29 67.6 999.9 30 8.0 8.0 999 9999.9 29.88 99.9 99.9 99.9 202417419301GSLM4 29 67.6 999.9 40 8.0 8.9 999 9999.9 29.88 99.9 99.9 99.9 202417419401GSLM4 29 67.8 999.9 40 8.9 8.9 999 9999.9 29.87 99.9 99.9 99.9 202417419501GSLM4 29 68.2 999.9 40 8.0 9.9 999 9999.9 29.86 99.9 99.9 99.9 202417420001GSLM4 29 68.2 999.9 50 9.9 11.1 999 9999.9 29.86 99.9 99.9 99.9 202417420101GSLM4 29 68.4 999.9 50 8.9 11.1 999 9999.9 29.85 99.9 99.9 99.9 202417420201GSLM4 29 68.2 999.9 50 11.1 12.1 999 9999.9 29.84 99.9 99.9 99.9 202417420301GSLM4 29 68.2 999.9 50 11.1 12.1 999 9999.9 29.84 99.9 99.9 99.9 202417420401GSLM4 29 68.4 999.9 50 9.9 12.1 999 9999.9 29.84 99.9 99.9 99.9
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  at | dp | wd | ws | wg | cc | sr | bp | wt | wvh | wvp
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  [every 3rd data value plotted]
125 matching elements
0.027 sec

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