Skip to main content
NOAA / GLERL / CoastWatch Great Lakes Node / NOAAPORT Page

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: 1335 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 (190)
 (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
202519000001GSLM4   29  74.1 999.9  90  8.0  8.9 999 9999.9  30.01 99.9 99.9 99.9
202519000101GSLM4   29  73.9 999.9  90  8.0  9.9 999 9999.9  30.01 99.9 99.9 99.9
202519000201GSLM4   29  74.1 999.9  90  8.0  8.9 999 9999.9  30.01 99.9 99.9 99.9
202519000301GSLM4   29  73.9 999.9  90  8.9  9.9 999 9999.9  30.02 99.9 99.9 99.9
202519000401GSLM4   29  74.1 999.9  90  9.9  9.9 999 9999.9  30.01 99.9 99.9 99.9
202519000501GSLM4   29  74.5 999.9  80  9.9 11.1 999 9999.9  30.01 99.9 99.9 99.9
202519001001GSLM4   29  74.1 999.9  90  9.9 12.1 999 9999.9  30.01 99.9 99.9 99.9
202519001101GSLM4   29  73.9 999.9 100 12.1 13.0 999 9999.9  30.01 99.9 99.9 99.9
202519001201GSLM4   29  73.6 999.9 100 13.0 14.0 999 9999.9  30.01 99.9 99.9 99.9
202519001301GSLM4   29  73.6 999.9 110 15.0 16.9 999 9999.9  30.01 99.9 99.9 99.9
202519001401GSLM4   29  73.6 999.9 120 15.9 18.1 999 9999.9  30.01 99.9 99.9 99.9
202519001501GSLM4   29  73.6 999.9 110 16.9 16.9 999 9999.9  30.01 99.9 99.9 99.9
202519002001GSLM4   29  73.2 999.9 120 15.0 16.9 999 9999.9  30.01 99.9 99.9 99.9
202519002101GSLM4   29  73.0 999.9 110 15.9 16.9 999 9999.9  30.01 99.9 99.9 99.9
202519002201GSLM4   29  72.7 999.9 120 16.9 18.1 999 9999.9  30.01 99.9 99.9 99.9
202519002301GSLM4   29  72.5 999.9 120 15.9 18.1 999 9999.9  30.01 99.9 99.9 99.9
202519002401GSLM4   29  72.3 999.9 120 15.9 18.1 999 9999.9  30.02 99.9 99.9 99.9
202519002501GSLM4   29  72.3 999.9 120 15.9 18.1 999 9999.9  30.02 99.9 99.9 99.9
202519003001GSLM4   29  72.0 999.9 120 15.0 18.1 999 9999.9  30.02 99.9 99.9 99.9
202519003101GSLM4   29  72.0 999.9 120 13.0 15.0 999 9999.9  30.03 99.9 99.9 99.9
202519003201GSLM4   29  72.0 999.9 120 13.0 14.0 999 9999.9  30.03 99.9 99.9 99.9
202519003301GSLM4   29  72.0 999.9 120 14.0 15.0 999 9999.9  30.02 99.9 99.9 99.9
202519003401GSLM4   29  71.8 999.9 120 13.0 15.0 999 9999.9  30.02 99.9 99.9 99.9
202519003501GSLM4   29  71.8 999.9 120 13.0 15.0 999 9999.9  30.02 99.9 99.9 99.9
202519004001GSLM4   29  72.0 999.9 120 13.0 15.9 999 9999.9  30.02 99.9 99.9 99.9
202519004101GSLM4   29  71.8 999.9 120 13.0 15.0 999 9999.9  30.02 99.9 99.9 99.9
202519004201GSLM4   29  71.8 999.9 130 14.0 15.0 999 9999.9  30.03 99.9 99.9 99.9
202519004301GSLM4   29  71.6 999.9 130 18.1 19.0 999 9999.9  30.03 99.9 99.9 99.9
202519004401GSLM4   29  71.4 999.9 130 15.9 18.1 999 9999.9  30.03 99.9 99.9 99.9
202519004501GSLM4   29  71.8 999.9 130 14.0 18.1 999 9999.9  30.02 99.9 99.9 99.9
202519005001GSLM4   29  71.8 999.9 130 14.0 16.9 999 9999.9  30.02 99.9 99.9 99.9
202519005101GSLM4   29  71.4 999.9 120 13.0 15.9 999 9999.9  30.02 99.9 99.9 99.9
202519005201GSLM4   29  71.4 999.9 120 12.1 14.0 999 9999.9  30.02 99.9 99.9 99.9
202519005301GSLM4   29  71.4 999.9 130 12.1 14.0 999 9999.9  30.02 99.9 99.9 99.9
202519005401GSLM4   29  71.4 999.9 130 12.1 14.0 999 9999.9  30.02 99.9 99.9 99.9
202519005501GSLM4   29  71.6 999.9 130 12.1 14.0 999 9999.9  30.01 99.9 99.9 99.9
202519006001GSLM4   29  71.8 999.9 130 14.0 16.9 999 9999.9  30.01 99.9 99.9 99.9
202519006101GSLM4   29  71.8 999.9 130 14.0 15.0 999 9999.9  30.01 99.9 99.9 99.9
202519006201GSLM4   29  71.6 999.9 140 15.9 15.9 999 9999.9  30.00 99.9 99.9 99.9
202519006301GSLM4   29  71.4 999.9 140 14.0 15.9 999 9999.9  30.00 99.9 99.9 99.9
202519006401GSLM4   29  71.2 999.9 140 13.0 15.0 999 9999.9  30.00 99.9 99.9 99.9
202519006501GSLM4   29  71.2 999.9 140 12.1 14.0 999 9999.9  30.00 99.9 99.9 99.9
202519007001GSLM4   29  71.6 999.9 140 12.1 13.0 999 9999.9  30.00 99.9 99.9 99.9
202519007101GSLM4   29  71.4 999.9 140 11.1 13.0 999 9999.9  29.99 99.9 99.9 99.9
202519007201GSLM4   29  71.4 999.9 150 12.1 13.0 999 9999.9  29.99 99.9 99.9 99.9
202519007301GSLM4   29  71.4 999.9 150 12.1 12.1 999 9999.9  29.99 99.9 99.9 99.9
202519007401GSLM4   29  71.4 999.9 150 11.1 13.0 999 9999.9  29.99 99.9 99.9 99.9
202519007501GSLM4   29  71.4 999.9 150 11.1 13.0 999 9999.9  29.99 99.9 99.9 99.9
202519008001GSLM4   29  71.8 999.9 150 12.1 13.0 999 9999.9  29.99 99.9 99.9 99.9
202519008101GSLM4   29  72.1 999.9 150 12.1 14.0 999 9999.9  29.99 99.9 99.9 99.9
202519008201GSLM4   29  72.1 999.9 150  9.9 14.0 999 9999.9  29.99 99.9 99.9 99.9
202519008301GSLM4   29  72.3 999.9 150  8.9 12.1 999 9999.9  29.99 99.9 99.9 99.9
202519008401GSLM4   29  72.3 999.9 140  5.1 11.1 999 9999.9  29.98 99.9 99.9 99.9
202519008501GSLM4   29  72.3 999.9 150  4.1  8.0 999 9999.9  29.98 99.9 99.9 99.9
202519009001GSLM4   29  72.7 999.9 180  1.9  6.0 999 9999.9  29.98 99.9 99.9 99.9
202519009101GSLM4   29  72.9 999.9 190  1.9  5.1 999 9999.9  29.98 99.9 99.9 99.9
202519009201GSLM4   29  72.9 999.9 200  5.1  8.9 999 9999.9  29.98 99.9 99.9 99.9
202519009301GSLM4   29  72.7 999.9 200  5.1  9.9 999 9999.9  29.98 99.9 99.9 99.9
202519009401GSLM4   29  72.7 999.9 200  5.1  8.9 999 9999.9  29.98 99.9 99.9 99.9
202519009501GSLM4   29  72.7 999.9 210  8.9 11.1 999 9999.9  29.98 99.9 99.9 99.9
202519010001GSLM4   29  72.7 999.9 210  9.9 11.1 999 9999.9  29.98 99.9 99.9 99.9
202519010101GSLM4   29  72.5 999.9 230  8.9 11.1 999 9999.9  29.99 99.9 99.9 99.9
202519010201GSLM4   29  72.3 999.9 220  8.0  8.9 999 9999.9  29.99 99.9 99.9 99.9
202519010301GSLM4   29  72.1 999.9 220  8.9 11.1 999 9999.9  29.99 99.9 99.9 99.9
202519010401GSLM4   29  72.0 999.9 220  8.9 11.1 999 9999.9  29.99 99.9 99.9 99.9
202519010501GSLM4   29  71.8 999.9 240  8.9 11.1 999 9999.9  29.99 99.9 99.9 99.9
202519011001GSLM4   29  71.1 999.9 230  7.0  8.9 999 9999.9  30.00 99.9 99.9 99.9
202519011101GSLM4   29  71.4 999.9 220  9.9 11.1 999 9999.9  30.00 99.9 99.9 99.9
202519011201GSLM4   29  71.4 999.9 220  9.9 12.1 999 9999.9  30.00 99.9 99.9 99.9
202519011301GSLM4   29  71.2 999.9 220 11.1 12.1 999 9999.9  30.00 99.9 99.9 99.9
202519011401GSLM4   29  71.1 999.9 220 11.1 13.0 999 9999.9  30.00 99.9 99.9 99.9
202519011501GSLM4   29  70.9 999.9 230 11.1 13.0 999 9999.9  30.01 99.9 99.9 99.9
202519012001GSLM4   29  71.1 999.9 230 11.1 13.0 999 9999.9  30.01 99.9 99.9 99.9
202519012101GSLM4   29  70.9 999.9 220  9.9 12.1 999 9999.9  30.01 99.9 99.9 99.9
202519012201GSLM4   29  70.9 999.9 230  9.9 11.1 999 9999.9  30.01 99.9 99.9 99.9
202519012301GSLM4   29  70.9 999.9 230  9.9 11.1 999 9999.9  30.01 99.9 99.9 99.9
  New Graph (click on parameter):                                      
  at | dp | wd | ws | wg | cc | sr | bp | wt | wvh | wvp
google chart
  [every 2nd value plotted]
76 matching elements
0.014 sec
This Web page created and maintained by Greg Lang, NOAA/GLERL,
[Return to NOAAPORT page]