Skip to main content

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
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 (338)
 (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 202425400001GSLM4 29 64.6 999.9 70 9.9 12.1 999 9999.9 30.06 99.9 99.9 99.9 202425400101GSLM4 29 64.6 999.9 60 8.9 11.1 999 9999.9 30.07 99.9 99.9 99.9 202425400201GSLM4 29 64.6 999.9 50 9.9 11.1 999 9999.9 30.07 99.9 99.9 99.9 202425400301GSLM4 29 64.6 999.9 60 9.9 11.1 999 9999.9 30.07 99.9 99.9 99.9 202425400401GSLM4 29 64.6 999.9 70 9.9 11.1 999 9999.9 30.07 99.9 99.9 99.9 202425400501GSLM4 29 64.8 999.9 70 8.9 11.1 999 9999.9 30.07 99.9 99.9 99.9 202425401001GSLM4 29 64.6 999.9 60 8.9 9.9 999 9999.9 30.08 99.9 99.9 99.9 202425401101GSLM4 29 64.6 999.9 70 8.0 8.9 999 9999.9 30.08 99.9 99.9 99.9 202425401201GSLM4 29 64.4 999.9 70 7.0 8.9 999 9999.9 30.09 99.9 99.9 99.9 202425401301GSLM4 29 64.4 999.9 80 7.0 8.0 999 9999.9 30.09 99.9 99.9 99.9 202425401401GSLM4 29 64.6 999.9 70 7.0 8.0 999 9999.9 30.10 99.9 99.9 99.9 202425401501GSLM4 29 64.6 999.9 80 6.0 8.0 999 9999.9 30.10 99.9 99.9 99.9 202425402001GSLM4 29 64.6 999.9 80 6.0 7.0 999 9999.9 30.10 99.9 99.9 99.9 202425402101GSLM4 29 64.6 999.9 80 6.0 7.0 999 9999.9 30.10 99.9 99.9 99.9 202425402201GSLM4 29 64.6 999.9 70 6.0 7.0 999 9999.9 30.10 99.9 99.9 99.9 202425402301GSLM4 29 64.8 999.9 80 5.1 7.0 999 9999.9 30.10 99.9 99.9 99.9 202425402401GSLM4 29 64.6 999.9 90 5.1 6.0 999 9999.9 30.10 99.9 99.9 99.9 202425402501GSLM4 29 64.4 999.9 100 5.1 6.0 999 9999.9 30.10 99.9 99.9 99.9 202425403001GSLM4 29 64.2 999.9 100 5.1 6.0 999 9999.9 30.10 99.9 99.9 99.9 202425403101GSLM4 29 64.0 999.9 110 5.1 6.0 999 9999.9 30.11 99.9 99.9 99.9 202425403201GSLM4 29 64.0 999.9 110 6.0 7.0 999 9999.9 30.11 99.9 99.9 99.9 202425403301GSLM4 29 63.9 999.9 100 6.0 7.0 999 9999.9 30.11 99.9 99.9 99.9 202425403401GSLM4 29 63.7 999.9 100 6.0 7.0 999 9999.9 30.11 99.9 99.9 99.9 202425403501GSLM4 29 63.7 999.9 100 6.0 7.0 999 9999.9 30.11 99.9 99.9 99.9 202425404001GSLM4 29 63.7 999.9 100 6.0 7.0 999 9999.9 30.12 99.9 99.9 99.9 202425404101GSLM4 29 63.5 999.9 100 6.0 7.0 999 9999.9 30.12 99.9 99.9 99.9 202425404201GSLM4 29 63.5 999.9 110 6.0 7.0 999 9999.9 30.12 99.9 99.9 99.9 202425404301GSLM4 29 63.5 999.9 110 5.1 7.0 999 9999.9 30.12 99.9 99.9 99.9 202425404401GSLM4 29 63.5 999.9 130 4.1 5.1 999 9999.9 30.12 99.9 99.9 99.9 202425404501GSLM4 29 63.5 999.9 140 4.1 5.1 999 9999.9 30.12 99.9 99.9 99.9 202425405001GSLM4 29 63.3 999.9 150 5.1 6.0 999 9999.9 30.12 99.9 99.9 99.9 202425405101GSLM4 29 63.3 999.9 150 2.9 6.0 999 9999.9 30.13 99.9 99.9 99.9 202425405201GSLM4 29 63.1 999.9 160 1.0 5.1 999 9999.9 30.13 99.9 99.9 99.9 202425405301GSLM4 29 63.1 999.9 0 0.0 6.0 999 9999.9 30.13 99.9 99.9 99.9 202425405401GSLM4 29 63.1 999.9 180 1.0 1.9 999 9999.9 30.13 99.9 99.9 99.9 202425405501GSLM4 29 63.3 999.9 0 0.0 5.1 999 9999.9 30.13 99.9 99.9 99.9 202425406001GSLM4 29 63.3 999.9 200 2.9 7.0 999 9999.9 30.13 99.9 99.9 99.9 202425406101GSLM4 29 63.5 999.9 200 1.9 7.0 999 9999.9 30.13 99.9 99.9 99.9 202425406201GSLM4 29 63.5 999.9 200 1.9 6.0 999 9999.9 30.13 99.9 99.9 99.9 202425406301GSLM4 29 63.1 999.9 170 1.0 6.0 999 9999.9 30.13 99.9 99.9 99.9 202425406401GSLM4 29 63.1 999.9 200 1.9 5.1 999 9999.9 30.13 99.9 99.9 99.9 202425406501GSLM4 29 63.3 999.9 200 5.1 7.0 999 9999.9 30.13 99.9 99.9 99.9 202425407001GSLM4 29 63.5 999.9 200 2.9 7.0 999 9999.9 30.13 99.9 99.9 99.9 202425407101GSLM4 29 63.7 999.9 190 1.9 8.0 999 9999.9 30.13 99.9 99.9 99.9 202425407201GSLM4 29 63.7 999.9 190 1.9 5.1 999 9999.9 30.13 99.9 99.9 99.9 202425407301GSLM4 29 63.7 999.9 0 0.0 4.1 999 9999.9 30.13 99.9 99.9 99.9 202425407401GSLM4 29 63.7 999.9 190 1.9 6.0 999 9999.9 30.13 99.9 99.9 99.9 202425407501GSLM4 29 63.9 999.9 200 2.9 6.0 999 9999.9 30.13 99.9 99.9 99.9 202425408001GSLM4 29 64.0 999.9 0 0.0 4.1 999 9999.9 30.13 99.9 99.9 99.9 202425408101GSLM4 29 64.0 999.9 0 0.0 2.9 999 9999.9 30.13 99.9 99.9 99.9 202425408201GSLM4 29 64.0 999.9 210 1.9 7.0 999 9999.9 30.13 99.9 99.9 99.9 202425408301GSLM4 29 62.1 999.9 290 4.1 6.0 999 9999.9 30.13 99.9 99.9 99.9 202425408401GSLM4 29 61.5 999.9 280 4.1 5.1 999 9999.9 30.13 99.9 99.9 99.9 202425408501GSLM4 29 61.2 999.9 270 5.1 6.0 999 9999.9 30.14 99.9 99.9 99.9 202425409001GSLM4 29 61.2 999.9 270 4.1 5.1 999 9999.9 30.13 99.9 99.9 99.9 202425409101GSLM4 29 61.0 999.9 260 2.9 5.1 999 9999.9 30.13 99.9 99.9 99.9 202425409201GSLM4 29 61.2 999.9 270 2.9 4.1 999 9999.9 30.13 99.9 99.9 99.9 202425409301GSLM4 29 61.2 999.9 270 1.9 2.9 999 9999.9 30.13 99.9 99.9 99.9 202425409401GSLM4 29 61.2 999.9 270 1.9 2.9 999 9999.9 30.13 99.9 99.9 99.9 202425409501GSLM4 29 61.2 999.9 270 1.9 2.9 999 9999.9 30.13 99.9 99.9 99.9 202425410001GSLM4 29 61.3 999.9 270 1.9 2.9 999 9999.9 30.13 99.9 99.9 99.9 202425410101GSLM4 29 61.3 999.9 270 2.9 4.1 999 9999.9 30.13 99.9 99.9 99.9 202425410201GSLM4 29 61.3 999.9 280 4.1 4.1 999 9999.9 30.13 99.9 99.9 99.9 202425410301GSLM4 29 61.2 999.9 290 2.9 4.1 999 9999.9 30.13 99.9 99.9 99.9 202425410401GSLM4 29 61.0 999.9 290 2.9 4.1 999 9999.9 30.13 99.9 99.9 99.9 202425410501GSLM4 29 61.0 999.9 290 2.9 4.1 999 9999.9 30.13 99.9 99.9 99.9 202425411001GSLM4 29 61.2 999.9 280 2.9 4.1 999 9999.9 30.14 99.9 99.9 99.9 202425411101GSLM4 29 61.2 999.9 280 1.9 4.1 999 9999.9 30.14 99.9 99.9 99.9 202425411201GSLM4 29 61.3 999.9 280 1.0 2.9 999 9999.9 30.14 99.9 99.9 99.9 202425411301GSLM4 29 61.9 999.9 280 1.9 2.9 999 9999.9 30.15 99.9 99.9 99.9 202425411401GSLM4 29 62.2 999.9 280 1.9 2.9 999 9999.9 30.15 99.9 99.9 99.9 202425411501GSLM4 29 62.4 999.9 270 2.9 2.9 999 9999.9 30.16 99.9 99.9 99.9 202425412001GSLM4 29 62.1 999.9 260 2.9 2.9 999 9999.9 30.16 99.9 99.9 99.9 202425412101GSLM4 29 62.1 999.9 250 2.9 2.9 999 9999.9 30.16 99.9 99.9 99.9 202425412201GSLM4 29 62.2 999.9 250 2.9 4.1 999 9999.9 30.16 99.9 99.9 99.9 202425412301GSLM4 29 62.6 999.9 240 1.9 2.9 999 9999.9 30.16 99.9 99.9 99.9 202425412401GSLM4 29 62.1 999.9 240 2.9 2.9 999 9999.9 30.16 99.9 99.9 99.9 202425412501GSLM4 29 62.1 999.9 250 2.9 4.1 999 9999.9 30.16 99.9 99.9 99.9 202425413001GSLM4 29 62.2 999.9 260 2.9 4.1 999 9999.9 30.16 99.9 99.9 99.9 202425413101GSLM4 29 61.9 999.9 260 4.1 4.1 999 9999.9 30.16 99.9 99.9 99.9 202425413201GSLM4 29 61.7 999.9 250 4.1 5.1 999 9999.9 30.16 99.9 99.9 99.9 202425413301GSLM4 29 61.9 999.9 250 4.1 5.1 999 9999.9 30.16 99.9 99.9 99.9 202425413401GSLM4 29 62.1 999.9 250 2.9 4.1 999 9999.9 30.16 99.9 99.9 99.9 202425413501GSLM4 29 62.2 999.9 250 2.9 4.1 999 9999.9 30.17 99.9 99.9 99.9 202425414001GSLM4 29 62.1 999.9 250 4.1 5.1 999 9999.9 30.17 99.9 99.9 99.9 202425414101GSLM4 29 62.1 999.9 250 2.9 5.1 999 9999.9 30.17 99.9 99.9 99.9 202425414201GSLM4 29 62.4 999.9 230 2.9 4.1 999 9999.9 30.17 99.9 99.9 99.9 202425414301GSLM4 29 63.1 999.9 220 1.9 4.1 999 9999.9 30.17 99.9 99.9 99.9 202425414401GSLM4 29 63.5 999.9 220 1.9 2.9 999 9999.9 30.17 99.9 99.9 99.9 202425414501GSLM4 29 65.1 999.9 0 0.0 1.9 999 9999.9 30.17 99.9 99.9 99.9 202425415001GSLM4 29 67.3 999.9 160 1.0 2.9 999 9999.9 30.17 99.9 99.9 99.9 202425415101GSLM4 29 66.9 999.9 160 2.9 4.1 999 9999.9 30.17 99.9 99.9 99.9 202425415201GSLM4 29 65.5 999.9 150 4.1 6.0 999 9999.9 30.17 99.9 99.9 99.9 202425415301GSLM4 29 64.4 999.9 160 4.1 7.0 999 9999.9 30.17 99.9 99.9 99.9 202425415401GSLM4 29 64.4 999.9 150 2.9 7.0 999 9999.9 30.16 99.9 99.9 99.9 202425415501GSLM4 29 64.6 999.9 160 1.9 4.1 999 9999.9 30.16 99.9 99.9 99.9 202425416001GSLM4 29 64.9 999.9 0 0.0 5.1 999 9999.9 30.16 99.9 99.9 99.9 202425416101GSLM4 29 64.8 999.9 160 1.9 4.1 999 9999.9 30.16 99.9 99.9 99.9 202425416201GSLM4 29 64.9 999.9 0 0.0 2.9 999 9999.9 30.16 99.9 99.9 99.9 202425416301GSLM4 29 64.4 999.9 0 0.0 2.9 999 9999.9 30.16 99.9 99.9 99.9 202425416401GSLM4 29 64.6 999.9 0 0.0 5.1 999 9999.9 30.16 99.9 99.9 99.9 202425416501GSLM4 29 64.6 999.9 160 2.9 6.0 999 9999.9 30.16 99.9 99.9 99.9 202425417001GSLM4 29 64.9 999.9 160 1.9 5.1 999 9999.9 30.16 99.9 99.9 99.9 202425417101GSLM4 29 65.1 999.9 160 1.0 5.1 999 9999.9 30.15 99.9 99.9 99.9 202425417201GSLM4 29 65.5 999.9 160 1.0 4.1 999 9999.9 30.15 99.9 99.9 99.9 202425417301GSLM4 29 65.7 999.9 160 2.9 4.1 999 9999.9 30.15 99.9 99.9 99.9 202425417401GSLM4 29 66.2 999.9 150 2.9 5.1 999 9999.9 30.15 99.9 99.9 99.9 202425417501GSLM4 29 66.6 999.9 160 2.9 6.0 999 9999.9 30.15 99.9 99.9 99.9 202425418001GSLM4 29 67.1 999.9 160 4.1 5.1 999 9999.9 30.15 99.9 99.9 99.9 202425418101GSLM4 29 67.1 999.9 160 2.9 5.1 999 9999.9 30.14 99.9 99.9 99.9 202425418201GSLM4 29 67.5 999.9 0 0.0 4.1 999 9999.9 30.14 99.9 99.9 99.9 202425418301GSLM4 29 68.0 999.9 140 1.9 1.9 999 9999.9 30.14 99.9 99.9 99.9 202425418401GSLM4 29 68.4 999.9 160 2.9 4.1 999 9999.9 30.13 99.9 99.9 99.9 202425418501GSLM4 29 68.2 999.9 160 2.9 4.1 999 9999.9 30.13 99.9 99.9 99.9 202425419001GSLM4 29 68.0 999.9 150 4.1 4.1 999 9999.9 30.13 99.9 99.9 99.9 202425419101GSLM4 29 67.5 999.9 140 4.1 5.1 999 9999.9 30.13 99.9 99.9 99.9 202425419201GSLM4 29 67.8 999.9 150 5.1 5.1 999 9999.9 30.12 99.9 99.9 99.9 202425419301GSLM4 29 68.0 999.9 140 5.1 6.0 999 9999.9 30.12 99.9 99.9 99.9 202425419401GSLM4 29 68.4 999.9 130 4.1 5.1 999 9999.9 30.11 99.9 99.9 99.9 202425419501GSLM4 29 68.5 999.9 130 2.9 5.1 999 9999.9 30.12 99.9 99.9 99.9 202425420001GSLM4 29 68.5 999.9 130 4.1 4.1 999 9999.9 30.11 99.9 99.9 99.9 202425420101GSLM4 29 68.7 999.9 140 2.9 4.1 999 9999.9 30.11 99.9 99.9 99.9 202425420201GSLM4 29 68.9 999.9 130 2.9 2.9 999 9999.9 30.11 99.9 99.9 99.9 202425420301GSLM4 29 69.1 999.9 120 4.1 4.1 999 9999.9 30.11 99.9 99.9 99.9 202425420401GSLM4 29 69.6 999.9 130 2.9 4.1 999 9999.9 30.11 99.9 99.9 99.9 202425420501GSLM4 29 70.0 999.9 140 2.9 2.9 999 9999.9 30.11 99.9 99.9 99.9 202425421001GSLM4 29 70.2 999.9 130 2.9 2.9 999 9999.9 30.11 99.9 99.9 99.9 202425421101GSLM4 29 70.2 999.9 110 2.9 2.9 999 9999.9 30.10 99.9 99.9 99.9 202425421201GSLM4 29 70.5 999.9 110 2.9 4.1 999 9999.9 30.10 99.9 99.9 99.9 202425421301GSLM4 29 69.8 999.9 90 6.0 7.0 999 9999.9 30.10 99.9 99.9 99.9 202425421401GSLM4 29 69.4 999.9 90 8.0 9.9 999 9999.9 30.10 99.9 99.9 99.9 202425421501GSLM4 29 69.3 999.9 90 8.0 8.9 999 9999.9 30.10 99.9 99.9 99.9 202425422001GSLM4 29 68.4 999.9 90 8.9 8.9 999 9999.9 30.10 99.9 99.9 99.9 202425422101GSLM4 29 68.4 999.9 80 8.0 8.9 999 9999.9 30.09 99.9 99.9 99.9 202425422201GSLM4 29 68.4 999.9 80 8.0 8.9 999 9999.9 30.10 99.9 99.9 99.9 202425422301GSLM4 29 68.4 999.9 80 8.9 9.9 999 9999.9 30.10 99.9 99.9 99.9 202425422401GSLM4 29 68.7 999.9 90 8.9 9.9 999 9999.9 30.09 99.9 99.9 99.9 202425422501GSLM4 29 68.4 999.9 80 8.9 8.9 999 9999.9 30.10 99.9 99.9 99.9 202425423001GSLM4 29 68.5 999.9 80 8.0 8.9 999 9999.9 30.10 99.9 99.9 99.9 202425423101GSLM4 29 68.4 999.9 80 9.9 11.1 999 9999.9 30.09 99.9 99.9 99.9 202425423201GSLM4 29 68.4 999.9 90 9.9 11.1 999 9999.9 30.09 99.9 99.9 99.9 202425423301GSLM4 29 68.4 999.9 90 9.9 11.1 999 9999.9 30.08 99.9 99.9 99.9 202425423401GSLM4 29 68.7 999.9 90 9.9 11.1 999 9999.9 30.08 99.9 99.9 99.9 202425423501GSLM4 29 68.9 999.9 90 11.1 12.1 999 9999.9 30.08 99.9 99.9 99.9
  New Graph (click on parameter):                                      
  at | dp | wd | ws | wg | cc | sr | bp | wt | wvh | wvp
google chart
144 matching elements
0.102 sec

This Web page created and maintained by Greg Lang, NOAA/GLERL,
[Return to NOAAPORT page]