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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: 1046 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 (346)
 (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
202434600001GSLM4   29  39.4 999.9 210  8.0  9.9 999 9999.9  29.81 99.9 99.9 99.9
202434600101GSLM4   29  39.4 999.9 210  8.0  8.9 999 9999.9  29.81 99.9 99.9 99.9
202434600201GSLM4   29  39.6 999.9 220  8.0  9.9 999 9999.9  29.81 99.9 99.9 99.9
202434600301GSLM4   29  39.6 999.9 210  8.9 11.1 999 9999.9  29.81 99.9 99.9 99.9
202434600401GSLM4   29  39.6 999.9 220  7.0  9.9 999 9999.9  29.80 99.9 99.9 99.9
202434600501GSLM4   29  39.4 999.9 230  8.0  8.9 999 9999.9  29.80 99.9 99.9 99.9
202434601001GSLM4   29  39.0 999.9 250  8.0  9.9 999 9999.9  29.80 99.9 99.9 99.9
202434601101GSLM4   29  38.1 999.9 250  6.0  8.9 999 9999.9  29.80 99.9 99.9 99.9
202434601201GSLM4   29  37.9 999.9 260  6.0  7.0 999 9999.9  29.80 99.9 99.9 99.9
202434601301GSLM4   29  38.1 999.9 270  7.0  7.0 999 9999.9  29.79 99.9 99.9 99.9
202434601401GSLM4   29  37.9 999.9 280  7.0  8.0 999 9999.9  29.79 99.9 99.9 99.9
202434601501GSLM4   29  38.5 999.9 350  9.9 12.1 999 9999.9  29.79 99.9 99.9 99.9
202434602001GSLM4   29  38.3 999.9 350  8.9 12.1 999 9999.9  29.79 99.9 99.9 99.9
202434602101GSLM4   29  37.9 999.9 360 11.1 12.1 999 9999.9  29.79 99.9 99.9 99.9
202434602201GSLM4   29  37.8 999.9 360 11.1 12.1 999 9999.9  29.79 99.9 99.9 99.9
202434602301GSLM4   29  37.6 999.9 360  9.9 12.1 999 9999.9  29.80 99.9 99.9 99.9
202434602401GSLM4   29  37.2 999.9 350  9.9 11.1 999 9999.9  29.79 99.9 99.9 99.9
202434602501GSLM4   29  37.0 999.9  10  9.9 12.1 999 9999.9  29.79 99.9 99.9 99.9
202434603001GSLM4   29  37.0 999.9  10  8.9 11.1 999 9999.9  29.79 99.9 99.9 99.9
202434603101GSLM4   29  36.7 999.9  10  9.9 11.1 999 9999.9  29.79 99.9 99.9 99.9
202434603201GSLM4   29  36.7 999.9  10  8.9  9.9 999 9999.9  29.79 99.9 99.9 99.9
202434603301GSLM4   29  36.7 999.9  10  8.0  9.9 999 9999.9  29.79 99.9 99.9 99.9
202434603401GSLM4   29  36.5 999.9 360  8.9  9.9 999 9999.9  29.79 99.9 99.9 99.9
202434603501GSLM4   29  36.3 999.9 360  8.0  9.9 999 9999.9  29.79 99.9 99.9 99.9
202434604001GSLM4   29  36.3 999.9 360  7.0  9.9 999 9999.9  29.80 99.9 99.9 99.9
202434604101GSLM4   29  36.1 999.9  10  6.0  8.9 999 9999.9  29.80 99.9 99.9 99.9
202434604201GSLM4   29  36.1 999.9  10  7.0  8.0 999 9999.9  29.79 99.9 99.9 99.9
202434604301GSLM4   29  36.1 999.9 350  7.0  8.0 999 9999.9  29.79 99.9 99.9 99.9
202434604401GSLM4   29  36.1 999.9 360  6.0  8.0 999 9999.9  29.79 99.9 99.9 99.9
202434604501GSLM4   29  36.1 999.9 350  7.0  8.0 999 9999.9  29.79 99.9 99.9 99.9
202434605001GSLM4   29  36.1 999.9 350  6.0  8.0 999 9999.9  29.79 99.9 99.9 99.9
202434605101GSLM4   29  36.0 999.9 350  8.0  8.9 999 9999.9  29.79 99.9 99.9 99.9
202434605201GSLM4   29  36.0 999.9 360  5.1  8.9 999 9999.9  29.79 99.9 99.9 99.9
202434605301GSLM4   29  35.8 999.9 360  5.1  6.0 999 9999.9  29.79 99.9 99.9 99.9
202434605401GSLM4   29  35.6 999.9 360  5.1  7.0 999 9999.9  29.79 99.9 99.9 99.9
202434605501GSLM4   29  35.6 999.9 350  6.0  7.0 999 9999.9  29.78 99.9 99.9 99.9
202434606001GSLM4   29  35.6 999.9 360  6.0  7.0 999 9999.9  29.77 99.9 99.9 99.9
202434606101GSLM4   29  35.4 999.9 340  7.0  8.0 999 9999.9  29.77 99.9 99.9 99.9
202434606201GSLM4   29  34.9 999.9 320  7.0  8.9 999 9999.9  29.77 99.9 99.9 99.9
202434606301GSLM4   29  34.5 999.9 320  6.0  8.0 999 9999.9  29.77 99.9 99.9 99.9
202434606401GSLM4   29  34.3 999.9 310  6.0  7.0 999 9999.9  29.77 99.9 99.9 99.9
202434606501GSLM4   29  34.0 999.9 280  8.0  9.9 999 9999.9  29.77 99.9 99.9 99.9
202434607001GSLM4   29  33.6 999.9 280  6.0  8.0 999 9999.9  29.77 99.9 99.9 99.9
202434607101GSLM4   29  33.6 999.9 300  4.1  7.0 999 9999.9  29.76 99.9 99.9 99.9
202434607201GSLM4   29  33.6 999.9 310  4.1  5.1 999 9999.9  29.76 99.9 99.9 99.9
202434607301GSLM4   29  33.6 999.9 300  5.1  6.0 999 9999.9  29.76 99.9 99.9 99.9
202434607401GSLM4   29  33.6 999.9 290  5.1  6.0 999 9999.9  29.76 99.9 99.9 99.9
202434607501GSLM4   29  33.3 999.9 300  5.1  8.0 999 9999.9  29.77 99.9 99.9 99.9
202434608001GSLM4   29  33.3 999.9 310  5.1  6.0 999 9999.9  29.77 99.9 99.9 99.9
202434608101GSLM4   29  33.3 999.9 310  5.1  6.0 999 9999.9  29.77 99.9 99.9 99.9
202434608201GSLM4   29  33.3 999.9 330  5.1  6.0 999 9999.9  29.77 99.9 99.9 99.9
202434608301GSLM4   29  33.3 999.9 310  6.0  7.0 999 9999.9  29.76 99.9 99.9 99.9
202434608401GSLM4   29  33.3 999.9 320  7.0  8.0 999 9999.9  29.76 99.9 99.9 99.9
202434608501GSLM4   29  33.3 999.9 320  7.0  8.0 999 9999.9  29.76 99.9 99.9 99.9
202434609001GSLM4   29  33.3 999.9 310  7.0  8.0 999 9999.9  29.75 99.9 99.9 99.9
202434609101GSLM4   29  33.1 999.9 320  6.0  8.0 999 9999.9  29.75 99.9 99.9 99.9
202434609201GSLM4   29  33.3 999.9 310  5.1  6.0 999 9999.9  29.76 99.9 99.9 99.9
202434609301GSLM4   29  33.3 999.9 330  5.1  6.0 999 9999.9  29.75 99.9 99.9 99.9
202434609401GSLM4   29  33.4 999.9 310  2.9  5.1 999 9999.9  29.75 99.9 99.9 99.9
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  [every 2nd value plotted]
59 matching elements
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This Web page created and maintained by Greg Lang, NOAA/GLERL,
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