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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: 1942 GMT
Station Types
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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 (054)
 (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 202403100001GSLM4 29 32.2 999.9 150 6.0 8.0 999 9999.9 29.96 99.9 99.9 99.9 202403100101GSLM4 29 32.2 999.9 150 6.0 7.0 999 9999.9 29.97 99.9 99.9 99.9 202403100201GSLM4 29 32.2 999.9 160 4.1 7.0 999 9999.9 29.97 99.9 99.9 99.9 202403100301GSLM4 29 32.2 999.9 160 1.9 5.1 999 9999.9 29.98 99.9 99.9 99.9 202403100401GSLM4 29 32.2 999.9 0 0.0 4.1 999 9999.9 29.99 99.9 99.9 99.9 202403100501GSLM4 29 32.2 999.9 0 0.0 0.0 999 9999.9 29.99 99.9 99.9 99.9 202403101001GSLM4 29 32.2 999.9 0 0.0 2.9 999 9999.9 29.99 99.9 99.9 99.9 202403101101GSLM4 29 32.2 999.9 0 0.0 1.0 999 9999.9 29.99 99.9 99.9 99.9 202403101201GSLM4 29 32.2 999.9 0 0.0 0.0 999 9999.9 29.99 99.9 99.9 99.9 202403101301GSLM4 29 32.2 999.9 0 0.0 0.0 999 9999.9 29.99 99.9 99.9 99.9 202403101401GSLM4 29 32.4 999.9 0 0.0 1.9 999 9999.9 29.99 99.9 99.9 99.9 202403101501GSLM4 29 32.4 999.9 200 1.0 1.9 999 9999.9 30.00 99.9 99.9 99.9 202403102001GSLM4 29 32.4 999.9 210 4.1 6.0 999 9999.9 30.00 99.9 99.9 99.9 202403102101GSLM4 29 32.2 999.9 210 4.1 5.1 999 9999.9 30.01 99.9 99.9 99.9 202403102201GSLM4 29 32.2 999.9 210 4.1 5.1 999 9999.9 30.01 99.9 99.9 99.9 202403102301GSLM4 29 32.2 999.9 220 4.1 5.1 999 9999.9 30.01 99.9 99.9 99.9 202403102401GSLM4 29 32.2 999.9 230 2.9 5.1 999 9999.9 30.01 99.9 99.9 99.9 202403102501GSLM4 29 32.0 999.9 0 0.0 4.1 999 9999.9 30.00 99.9 99.9 99.9 202403103001GSLM4 29 32.0 999.9 0 0.0 1.0 999 9999.9 30.00 99.9 99.9 99.9 202403103101GSLM4 29 32.0 999.9 0 0.0 1.9 999 9999.9 30.00 99.9 99.9 99.9 202403103201GSLM4 29 32.0 999.9 0 0.0 0.0 999 9999.9 30.00 99.9 99.9 99.9 202403103301GSLM4 29 32.0 999.9 0 0.0 1.0 999 9999.9 29.99 99.9 99.9 99.9 202403103401GSLM4 29 32.0 999.9 0 0.0 0.0 999 9999.9 29.99 99.9 99.9 99.9 202403103501GSLM4 29 32.0 999.9 0 0.0 2.9 999 9999.9 30.00 99.9 99.9 99.9 202403104001GSLM4 29 31.8 999.9 210 4.1 5.1 999 9999.9 30.00 99.9 99.9 99.9 202403104101GSLM4 29 31.8 999.9 210 4.1 5.1 999 9999.9 30.00 99.9 99.9 99.9 202403104201GSLM4 29 31.8 999.9 160 1.0 2.9 999 9999.9 29.99 99.9 99.9 99.9 202403104301GSLM4 29 31.8 999.9 220 5.1 6.0 999 9999.9 30.00 99.9 99.9 99.9 202403104401GSLM4 29 31.8 999.9 230 4.1 6.0 999 9999.9 30.00 99.9 99.9 99.9 202403104501GSLM4 29 31.6 999.9 240 4.1 5.1 999 9999.9 30.00 99.9 99.9 99.9 202403105001GSLM4 29 31.6 999.9 210 2.9 5.1 999 9999.9 30.00 99.9 99.9 99.9 202403105101GSLM4 29 31.6 999.9 220 2.9 4.1 999 9999.9 30.00 99.9 99.9 99.9 202403105201GSLM4 29 31.6 999.9 240 5.1 5.1 999 9999.9 30.01 99.9 99.9 99.9 202403105301GSLM4 29 31.6 999.9 250 5.1 6.0 999 9999.9 30.01 99.9 99.9 99.9 202403105401GSLM4 29 31.6 999.9 260 6.0 6.0 999 9999.9 30.02 99.9 99.9 99.9 202403105501GSLM4 29 31.6 999.9 270 5.1 6.0 999 9999.9 30.02 99.9 99.9 99.9 202403106001GSLM4 29 31.6 999.9 260 2.9 5.1 999 9999.9 30.01 99.9 99.9 99.9 202403106101GSLM4 29 31.6 999.9 260 2.9 4.1 999 9999.9 30.01 99.9 99.9 99.9 202403106201GSLM4 29 31.6 999.9 250 1.9 2.9 999 9999.9 30.02 99.9 99.9 99.9 202403106301GSLM4 29 31.6 999.9 250 1.9 1.9 999 9999.9 30.02 99.9 99.9 99.9 202403106401GSLM4 29 31.5 999.9 0 0.0 1.9 999 9999.9 30.01 99.9 99.9 99.9 202403106501GSLM4 29 31.5 999.9 240 1.9 1.9 999 9999.9 30.02 99.9 99.9 99.9 202403107001GSLM4 29 31.5 999.9 240 1.9 2.9 999 9999.9 30.02 99.9 99.9 99.9 202403107101GSLM4 29 31.6 999.9 250 4.1 4.1 999 9999.9 30.02 99.9 99.9 99.9 202403107201GSLM4 29 31.8 999.9 240 2.9 4.1 999 9999.9 30.02 99.9 99.9 99.9 202403107301GSLM4 29 31.6 999.9 220 2.9 2.9 999 9999.9 30.03 99.9 99.9 99.9 202403107401GSLM4 29 31.6 999.9 210 2.9 2.9 999 9999.9 30.03 99.9 99.9 99.9 202403107501GSLM4 29 31.6 999.9 0 0.0 2.9 999 9999.9 30.03 99.9 99.9 99.9 202403108001GSLM4 29 31.5 999.9 0 0.0 0.0 999 9999.9 30.02 99.9 99.9 99.9 202403108101GSLM4 29 31.5 999.9 0 0.0 1.0 999 9999.9 30.02 99.9 99.9 99.9 202403108201GSLM4 29 31.5 999.9 0 0.0 0.0 999 9999.9 30.03 99.9 99.9 99.9 202403108301GSLM4 29 31.3 999.9 210 4.1 5.1 999 9999.9 30.03 99.9 99.9 99.9 202403108401GSLM4 29 31.5 999.9 210 5.1 6.0 999 9999.9 30.03 99.9 99.9 99.9 202403108501GSLM4 29 31.6 999.9 230 5.1 6.0 999 9999.9 30.03 99.9 99.9 99.9 202403109001GSLM4 29 31.5 999.9 220 5.1 6.0 999 9999.9 30.03 99.9 99.9 99.9 202403109101GSLM4 29 31.1 999.9 230 6.0 7.0 999 9999.9 30.03 99.9 99.9 99.9 202403109201GSLM4 29 30.6 999.9 230 7.0 7.0 999 9999.9 30.03 99.9 99.9 99.9 202403109301GSLM4 29 30.2 999.9 250 8.9 9.9 999 9999.9 30.04 99.9 99.9 99.9 202403109401GSLM4 29 30.4 999.9 250 9.9 11.1 999 9999.9 30.04 99.9 99.9 99.9 202403109501GSLM4 29 30.7 999.9 260 8.9 9.9 999 9999.9 30.04 99.9 99.9 99.9 202403110001GSLM4 29 31.1 999.9 260 9.9 9.9 999 9999.9 30.05 99.9 99.9 99.9 202403110101GSLM4 29 31.3 999.9 270 9.9 11.1 999 9999.9 30.04 99.9 99.9 99.9 202403110201GSLM4 29 31.5 999.9 270 7.0 9.9 999 9999.9 30.04 99.9 99.9 99.9 202403110301GSLM4 29 31.5 999.9 260 6.0 8.9 999 9999.9 30.04 99.9 99.9 99.9 202403110401GSLM4 29 31.5 999.9 250 7.0 8.0 999 9999.9 30.04 99.9 99.9 99.9 202403110501GSLM4 29 31.5 999.9 240 7.0 8.0 999 9999.9 30.03 99.9 99.9 99.9 202403111001GSLM4 29 31.5 999.9 250 8.0 8.9 999 9999.9 30.03 99.9 99.9 99.9 202403111101GSLM4 29 31.5 999.9 250 8.9 9.9 999 9999.9 30.03 99.9 99.9 99.9 202403111201GSLM4 29 31.5 999.9 250 8.9 9.9 999 9999.9 30.03 99.9 99.9 99.9 202403111301GSLM4 29 31.5 999.9 260 8.0 9.9 999 9999.9 30.04 99.9 99.9 99.9 202403111401GSLM4 29 31.3 999.9 260 7.0 8.9 999 9999.9 30.04 99.9 99.9 99.9 202403111501GSLM4 29 31.5 999.9 250 8.9 9.9 999 9999.9 30.06 99.9 99.9 99.9 202403112001GSLM4 29 31.3 999.9 250 8.0 9.9 999 9999.9 30.06 99.9 99.9 99.9 202403112101GSLM4 29 31.5 999.9 250 8.9 9.9 999 9999.9 30.06 99.9 99.9 99.9 202403112201GSLM4 29 31.5 999.9 250 7.0 9.9 999 9999.9 30.06 99.9 99.9 99.9 202403112301GSLM4 29 31.5 999.9 230 6.0 9.9 999 9999.9 30.06 99.9 99.9 99.9 202403112401GSLM4 29 31.5 999.9 210 7.0 8.0 999 9999.9 30.06 99.9 99.9 99.9 202403112501GSLM4 29 31.3 999.9 210 5.1 8.0 999 9999.9 30.06 99.9 99.9 99.9 202403113001GSLM4 29 31.3 999.9 0 0.0 5.1 999 9999.9 30.06 99.9 99.9 99.9 202403113101GSLM4 29 31.3 999.9 0 0.0 2.9 999 9999.9 30.05 99.9 99.9 99.9 202403113201GSLM4 29 31.3 999.9 0 0.0 1.0 999 9999.9 30.06 99.9 99.9 99.9 202403113301GSLM4 29 31.3 999.9 0 0.0 1.9 999 9999.9 30.06 99.9 99.9 99.9 202403113401GSLM4 29 31.3 999.9 160 1.0 1.9 999 9999.9 30.06 99.9 99.9 99.9 202403114501GSLM4 29 31.6 999.9 170 1.0 4.1 999 9999.9 30.07 99.9 99.9 99.9 202403115001GSLM4 29 31.6 999.9 170 2.9 6.0 999 9999.9 30.06 99.9 99.9 99.9 202403115101GSLM4 29 31.6 999.9 180 1.9 6.0 999 9999.9 30.06 99.9 99.9 99.9 202403115201GSLM4 29 31.6 999.9 190 1.0 5.1 999 9999.9 30.07 99.9 99.9 99.9 202403115301GSLM4 29 31.6 999.9 190 1.9 7.0 999 9999.9 30.06 99.9 99.9 99.9 202403115401GSLM4 29 31.6 999.9 190 1.9 7.0 999 9999.9 30.07 99.9 99.9 99.9 202403115501GSLM4 29 31.8 999.9 190 1.9 9.9 999 9999.9 30.07 99.9 99.9 99.9 202403116001GSLM4 29 32.0 999.9 200 4.1 7.0 999 9999.9 30.07 99.9 99.9 99.9 202403116101GSLM4 29 32.2 999.9 190 2.9 8.0 999 9999.9 30.07 99.9 99.9 99.9 202403116201GSLM4 29 32.2 999.9 200 5.1 8.0 999 9999.9 30.07 99.9 99.9 99.9 202403116301GSLM4 29 32.4 999.9 190 1.0 7.0 999 9999.9 30.06 99.9 99.9 99.9 202403116401GSLM4 29 32.4 999.9 180 1.0 4.1 999 9999.9 30.06 99.9 99.9 99.9 202403116501GSLM4 29 32.5 999.9 190 1.9 4.1 999 9999.9 30.06 99.9 99.9 99.9 202403117001GSLM4 29 32.5 999.9 190 1.9 7.0 999 9999.9 30.05 99.9 99.9 99.9 202403117101GSLM4 29 32.5 999.9 190 2.9 8.0 999 9999.9 30.04 99.9 99.9 99.9 202403117201GSLM4 29 32.5 999.9 200 4.1 8.0 999 9999.9 30.04 99.9 99.9 99.9 202403117301GSLM4 29 32.7 999.9 200 7.0 9.9 999 9999.9 30.04 99.9 99.9 99.9 202403117401GSLM4 29 32.7 999.9 200 4.1 11.1 999 9999.9 30.03 99.9 99.9 99.9 202403117501GSLM4 29 32.7 999.9 190 1.9 6.0 999 9999.9 30.02 99.9 99.9 99.9 202403118001GSLM4 29 32.9 999.9 200 5.1 11.1 999 9999.9 30.02 99.9 99.9 99.9 202403118101GSLM4 29 33.1 999.9 200 6.0 9.9 999 9999.9 30.02 99.9 99.9 99.9 202403118201GSLM4 29 32.9 999.9 190 2.9 12.1 999 9999.9 30.02 99.9 99.9 99.9 202403118301GSLM4 29 32.9 999.9 200 9.9 13.0 999 9999.9 30.02 99.9 99.9 99.9 202403118401GSLM4 29 32.9 999.9 200 7.0 13.0 999 9999.9 30.02 99.9 99.9 99.9 202403118501GSLM4 29 32.9 999.9 190 1.9 8.9 999 9999.9 30.01 99.9 99.9 99.9 202403119001GSLM4 29 33.1 999.9 180 1.0 2.9 999 9999.9 30.01 99.9 99.9 99.9 202403119101GSLM4 29 33.1 999.9 180 1.0 4.1 999 9999.9 30.00 99.9 99.9 99.9 202403119201GSLM4 29 33.3 999.9 180 1.9 4.1 999 9999.9 30.00 99.9 99.9 99.9 202403119301GSLM4 29 33.1 999.9 190 4.1 7.0 999 9999.9 30.00 99.9 99.9 99.9 202403119401GSLM4 29 33.3 999.9 190 4.1 8.0 999 9999.9 29.99 99.9 99.9 99.9 202403119501GSLM4 29 33.3 999.9 200 8.0 11.1 999 9999.9 29.99 99.9 99.9 99.9 202403120001GSLM4 29 33.4 999.9 200 11.1 15.0 999 9999.9 29.98 99.9 99.9 99.9 202403120001GSLM4 29 33.4 999.9 200 11.1 15.0 999 9999.9 29.98 99.9 99.9 99.9 202403120101GSLM4 29 33.8 999.9 210 13.0 18.1 999 9999.9 29.98 99.9 99.9 99.9 202403120101GSLM4 29 33.8 999.9 210 13.0 18.1 999 9999.9 29.98 99.9 99.9 99.9 202403120201GSLM4 29 33.6 999.9 210 13.0 16.9 999 9999.9 29.98 99.9 99.9 99.9 202403120201GSLM4 29 33.6 999.9 210 13.0 17.1 999 9999.9 29.98 99.9 99.9 99.9 202403120301GSLM4 29 33.8 999.9 210 13.0 18.1 999 9999.9 29.98 99.9 99.9 99.9 202403120301GSLM4 29 33.8 999.9 210 13.0 18.1 999 9999.9 29.98 99.9 99.9 99.9 202403120401GSLM4 29 33.8 999.9 200 12.1 14.0 999 9999.9 29.97 99.9 99.9 99.9 202403120401GSLM4 29 33.8 999.9 200 12.1 14.0 999 9999.9 29.97 99.9 99.9 99.9 202403121501GSLM4 29 35.1 999.9 210 15.0 21.0 999 9999.9 29.95 99.9 99.9 99.9 202403122001GSLM4 29 35.2 999.9 210 19.0 21.0 999 9999.9 29.96 99.9 99.9 99.9 202403122101GSLM4 29 34.9 999.9 210 15.9 21.0 999 9999.9 29.95 99.9 99.9 99.9 202403122201GSLM4 29 35.4 999.9 210 18.1 22.0 999 9999.9 29.95 99.9 99.9 99.9 202403122301GSLM4 29 35.2 999.9 210 16.9 21.0 999 9999.9 29.95 99.9 99.9 99.9 202403122401GSLM4 29 35.2 999.9 210 16.9 21.0 999 9999.9 29.94 99.9 99.9 99.9 202403122501GSLM4 29 35.1 999.9 210 18.1 21.0 999 9999.9 29.94 99.9 99.9 99.9 202403123001GSLM4 29 34.9 999.9 210 21.0 22.9 999 9999.9 29.93 99.9 99.9 99.9 202403123101GSLM4 29 35.2 999.9 210 21.0 23.9 999 9999.9 29.93 99.9 99.9 99.9 202403123201GSLM4 29 35.1 999.9 200 15.9 22.9 999 9999.9 29.92 99.9 99.9 99.9 202403123301GSLM4 29 35.2 999.9 210 20.0 22.9 999 9999.9 29.93 99.9 99.9 99.9 202403123501GSLM4 29 35.2 999.9 210 18.1 29.0 999 9999.9 29.92 99.9 99.9 99.9
  New Graph (click on parameter):                                      
  at | dp | wd | ws | wg | cc | sr | bp | wt | wvh | wvp
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  [every 3rd data value plotted]
136 matching elements
0.036 sec

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