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Realtime Great Lakes Weather Data and Marine Observations


GRMM4: NWS Grand Marais MI                                  
CMAN Station
Lat: 46.68°, Lon: -85.97°
Elevation: 186 m
Anemometer Height: 9 m
Related Site: NDBC


Current Time: 0633 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 (046)
 (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 202504600001GRMM4 09 999.9 999.9 220 15.0 21.0 999 9999.9 9999.9 99.9 99.9 99.9 202504600101GRMM4 09 999.9 999.9 220 14.0 21.0 999 9999.9 9999.9 99.9 99.9 99.9 202504600201GRMM4 09 999.9 999.9 210 14.0 19.0 999 9999.9 9999.9 99.9 99.9 99.9 202504600301GRMM4 09 999.9 999.9 220 15.0 22.0 999 9999.9 9999.9 99.9 99.9 99.9 202504600401GRMM4 09 999.9 999.9 220 19.0 22.9 999 9999.9 9999.9 99.9 99.9 99.9 202504600501GRMM4 09 999.9 999.9 220 15.9 22.9 999 9999.9 9999.9 99.9 99.9 99.9 202504601001GRMM4 09 999.9 999.9 220 18.1 22.0 999 9999.9 9999.9 99.9 99.9 99.9 202504601101GRMM4 09 999.9 999.9 220 19.0 27.0 999 9999.9 9999.9 99.9 99.9 99.9 202504601201GRMM4 09 999.9 999.9 220 16.9 25.1 999 9999.9 9999.9 99.9 99.9 99.9 202504601301GRMM4 09 999.9 999.9 220 18.1 27.0 999 9999.9 9999.9 99.9 99.9 99.9 202504601401GRMM4 09 999.9 999.9 230 15.0 22.9 999 9999.9 9999.9 99.9 99.9 99.9 202504601501GRMM4 09 999.9 999.9 220 14.0 21.0 999 9999.9 9999.9 99.9 99.9 99.9 202504602001GRMM4 09 999.9 999.9 220 14.0 20.0 999 9999.9 9999.9 99.9 99.9 99.9 202504602101GRMM4 09 999.9 999.9 230 15.0 20.0 999 9999.9 9999.9 99.9 99.9 99.9 202504602201GRMM4 09 999.9 999.9 220 14.0 19.0 999 9999.9 9999.9 99.9 99.9 99.9 202504602301GRMM4 09 999.9 999.9 230 14.0 20.0 999 9999.9 9999.9 99.9 99.9 99.9 202504602401GRMM4 09 999.9 999.9 220 15.0 18.1 999 9999.9 9999.9 99.9 99.9 99.9 202504602501GRMM4 09 999.9 999.9 230 15.0 19.0 999 9999.9 9999.9 99.9 99.9 99.9 202504603001GRMM4 09 999.9 999.9 230 15.0 21.0 999 9999.9 9999.9 99.9 99.9 99.9 202504603101GRMM4 09 999.9 999.9 240 13.0 19.0 999 9999.9 9999.9 99.9 99.9 99.9 202504603201GRMM4 09 999.9 999.9 250 13.0 18.1 999 9999.9 9999.9 99.9 99.9 99.9 202504603301GRMM4 09 999.9 999.9 240 12.1 16.9 999 9999.9 9999.9 99.9 99.9 99.9 202504603401GRMM4 09 999.9 999.9 260 8.9 15.0 999 9999.9 9999.9 99.9 99.9 99.9 202504603501GRMM4 09 999.9 999.9 250 11.1 13.0 999 9999.9 9999.9 99.9 99.9 99.9 202504604001GRMM4 09 999.9 999.9 250 8.9 15.0 999 9999.9 9999.9 99.9 99.9 99.9 202504604101GRMM4 09 999.9 999.9 250 8.9 12.1 999 9999.9 9999.9 99.9 99.9 99.9 202504604201GRMM4 09 999.9 999.9 250 8.9 11.1 999 9999.9 9999.9 99.9 99.9 99.9 202504604301GRMM4 09 999.9 999.9 250 9.9 13.0 999 9999.9 9999.9 99.9 99.9 99.9 202504604401GRMM4 09 999.9 999.9 250 8.9 11.1 999 9999.9 9999.9 99.9 99.9 99.9 202504604501GRMM4 09 999.9 999.9 250 8.0 11.1 999 9999.9 9999.9 99.9 99.9 99.9 202504605001GRMM4 09 999.9 999.9 250 8.0 9.9 999 9999.9 9999.9 99.9 99.9 99.9 202504605101GRMM4 09 999.9 999.9 240 7.0 8.9 999 9999.9 9999.9 99.9 99.9 99.9 202504605201GRMM4 09 999.9 999.9 220 5.1 8.9 999 9999.9 9999.9 99.9 99.9 99.9 202504605301GRMM4 09 999.9 999.9 190 5.1 7.0 999 9999.9 9999.9 99.9 99.9 99.9 202504605401GRMM4 09 999.9 999.9 190 5.1 6.0 999 9999.9 9999.9 99.9 99.9 99.9 202504605501GRMM4 09 999.9 999.9 180 6.0 8.0 999 9999.9 9999.9 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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36 matching elements
0.011 sec

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