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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: 0748 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 (109)
 (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 202510900001GRMM4 09 999.9 999.9 280 13.0 15.0 999 9999.9 9999.9 99.9 99.9 99.9 202510900101GRMM4 09 999.9 999.9 280 13.0 15.9 999 9999.9 9999.9 99.9 99.9 99.9 202510900201GRMM4 09 999.9 999.9 280 14.0 15.9 999 9999.9 9999.9 99.9 99.9 99.9 202510900301GRMM4 09 999.9 999.9 280 13.0 99.9 999 9999.9 9999.9 99.9 99.9 99.9 202510900401GRMM4 09 999.9 999.9 270 14.0 16.9 999 9999.9 9999.9 99.9 99.9 99.9 202510900501GRMM4 09 999.9 999.9 270 12.1 14.0 999 9999.9 9999.9 99.9 99.9 99.9 202510901001GRMM4 09 999.9 999.9 270 13.0 15.9 999 9999.9 9999.9 99.9 99.9 99.9 202510901101GRMM4 09 999.9 999.9 280 13.0 15.9 999 9999.9 9999.9 99.9 99.9 99.9 202510901301GRMM4 09 999.9 999.9 280 15.9 16.9 999 9999.9 9999.9 99.9 99.9 99.9 202510901401GRMM4 09 999.9 999.9 290 15.0 16.9 999 9999.9 9999.9 99.9 99.9 99.9 202510901501GRMM4 09 999.9 999.9 280 15.0 16.9 999 9999.9 9999.9 99.9 99.9 99.9 202510902001GRMM4 09 999.9 999.9 280 13.0 15.0 999 9999.9 9999.9 99.9 99.9 99.9 202510902101GRMM4 09 999.9 999.9 280 13.0 15.0 999 9999.9 9999.9 99.9 99.9 99.9 202510902201GRMM4 09 999.9 999.9 290 14.0 15.0 999 9999.9 9999.9 99.9 99.9 99.9 202510902301GRMM4 09 999.9 999.9 280 11.1 14.0 999 9999.9 9999.9 99.9 99.9 99.9 202510902401GRMM4 09 999.9 999.9 270 11.1 12.1 999 9999.9 9999.9 99.9 99.9 99.9 202510902501GRMM4 09 999.9 999.9 280 13.0 15.9 999 9999.9 9999.9 99.9 99.9 99.9 202510903001GRMM4 09 999.9 999.9 280 13.0 15.0 999 9999.9 9999.9 99.9 99.9 99.9 202510903101GRMM4 09 999.9 999.9 280 12.1 14.0 999 9999.9 9999.9 99.9 99.9 99.9 202510903201GRMM4 09 999.9 999.9 280 12.1 14.0 999 9999.9 9999.9 99.9 99.9 99.9 202510903301GRMM4 09 999.9 999.9 290 14.0 15.0 999 9999.9 9999.9 99.9 99.9 99.9 202510904001GRMM4 09 999.9 999.9 290 13.0 16.9 999 9999.9 9999.9 99.9 99.9 99.9 202510904101GRMM4 09 999.9 999.9 280 13.0 16.9 999 9999.9 9999.9 99.9 99.9 99.9 202510904201GRMM4 09 999.9 999.9 280 15.0 16.9 999 9999.9 9999.9 99.9 99.9 99.9 202510904301GRMM4 09 999.9 999.9 290 16.9 18.1 999 9999.9 9999.9 99.9 99.9 99.9 202510904401GRMM4 09 999.9 999.9 290 15.9 18.1 999 9999.9 9999.9 99.9 99.9 99.9 202510904501GRMM4 09 999.9 999.9 290 15.9 19.0 999 9999.9 9999.9 99.9 99.9 99.9 202510905001GRMM4 09 999.9 999.9 290 15.9 18.1 999 9999.9 9999.9 99.9 99.9 99.9 202510905101GRMM4 09 999.9 999.9 290 20.0 21.0 999 9999.9 9999.9 99.9 99.9 99.9 202510905201GRMM4 09 999.9 999.9 290 18.1 22.0 999 9999.9 9999.9 99.9 99.9 99.9 202510905301GRMM4 09 999.9 999.9 310 18.1 21.0 999 9999.9 9999.9 99.9 99.9 99.9 202510905401GRMM4 09 999.9 999.9 300 18.1 21.0 999 9999.9 9999.9 99.9 99.9 99.9 202510905501GRMM4 09 999.9 999.9 310 16.9 21.0 999 9999.9 9999.9 99.9 99.9 99.9 202510906001GRMM4 09 999.9 999.9 300 14.0 19.0 999 9999.9 9999.9 99.9 99.9 99.9 202510906101GRMM4 09 999.9 999.9 300 16.9 19.0 999 9999.9 9999.9 99.9 99.9 99.9 202510906201GRMM4 09 999.9 999.9 300 15.9 20.0 999 9999.9 9999.9 99.9 99.9 99.9 202510906301GRMM4 09 999.9 999.9 300 15.9 19.0 999 9999.9 9999.9 99.9 99.9 99.9 202510906401GRMM4 09 999.9 999.9 310 14.0 18.1 999 9999.9 9999.9 99.9 99.9 99.9 202510906501GRMM4 09 999.9 999.9 310 15.9 19.0 999 9999.9 9999.9 99.9 99.9 99.9
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