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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: 2203 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 (174)
 (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 202417400001GRMM4 09 51.6 999.9 320 4.1 7.0 999 9999.9 30.19 99.9 99.9 99.9 202417400101GRMM4 09 51.8 999.9 300 4.1 6.0 999 9999.9 30.19 99.9 99.9 99.9 202417400201GRMM4 09 51.8 999.9 290 2.9 4.1 999 9999.9 30.19 99.9 99.9 99.9 202417400301GRMM4 09 52.0 999.9 290 1.9 2.9 999 9999.9 30.18 99.9 99.9 99.9 202417400401GRMM4 09 52.2 999.9 280 2.9 2.9 999 9999.9 30.18 99.9 99.9 99.9 202417400501GRMM4 09 52.5 999.9 280 1.9 2.9 999 9999.9 30.18 99.9 99.9 99.9 202417401001GRMM4 09 52.7 999.9 270 2.9 4.1 999 9999.9 30.18 99.9 99.9 99.9 202417401101GRMM4 09 52.9 999.9 260 2.9 4.1 999 9999.9 30.18 99.9 99.9 99.9 202417401201GRMM4 09 53.1 999.9 260 2.9 4.1 999 9999.9 30.17 99.9 99.9 99.9 202417401301GRMM4 09 53.6 999.9 260 1.9 4.1 999 9999.9 30.17 99.9 99.9 99.9 202417401401GRMM4 09 53.8 999.9 260 1.0 2.9 999 9999.9 30.17 99.9 99.9 99.9 202417401501GRMM4 09 54.1 999.9 0 0.0 1.0 999 9999.9 30.16 99.9 99.9 99.9 202417402001GRMM4 09 54.5 999.9 0 0.0 1.9 999 9999.9 30.16 99.9 99.9 99.9 202417402101GRMM4 09 54.5 999.9 130 1.9 2.9 999 9999.9 30.16 99.9 99.9 99.9 202417402201GRMM4 09 54.3 999.9 130 2.9 2.9 999 9999.9 30.15 99.9 99.9 99.9 202417402301GRMM4 09 54.5 999.9 120 1.9 2.9 999 9999.9 30.15 99.9 99.9 99.9 202417402401GRMM4 09 54.5 999.9 130 1.0 1.9 999 9999.9 30.16 99.9 99.9 99.9 202417402501GRMM4 09 54.7 999.9 150 1.9 1.9 999 9999.9 30.16 99.9 99.9 99.9 202417403001GRMM4 09 54.7 999.9 0 0.0 2.9 999 9999.9 30.16 99.9 99.9 99.9 202417403101GRMM4 09 54.7 999.9 110 1.0 1.9 999 9999.9 30.15 99.9 99.9 99.9 202417403201GRMM4 09 55.0 999.9 130 2.9 4.1 999 9999.9 30.15 99.9 99.9 99.9 202417403301GRMM4 09 54.9 999.9 110 1.9 4.1 999 9999.9 30.15 99.9 99.9 99.9 202417403401GRMM4 09 54.3 999.9 90 1.9 1.9 999 9999.9 30.15 99.9 99.9 99.9 202417403501GRMM4 09 54.1 999.9 70 4.1 4.1 999 9999.9 30.15 99.9 99.9 99.9 202417404001GRMM4 09 54.1 999.9 80 4.1 5.1 999 9999.9 30.15 99.9 99.9 99.9 202417404101GRMM4 09 54.1 999.9 110 5.1 5.1 999 9999.9 30.14 99.9 99.9 99.9 202417404201GRMM4 09 54.1 999.9 120 4.1 5.1 999 9999.9 30.14 99.9 99.9 99.9 202417404301GRMM4 09 53.8 999.9 120 4.1 4.1 999 9999.9 30.15 99.9 99.9 99.9 202417404401GRMM4 09 53.6 999.9 120 5.1 5.1 999 9999.9 30.15 99.9 99.9 99.9 202417404501GRMM4 09 53.6 999.9 120 4.1 5.1 999 9999.9 30.15 99.9 99.9 99.9 202417405001GRMM4 09 53.2 999.9 130 6.0 7.0 999 9999.9 30.14 99.9 99.9 99.9 202417405101GRMM4 09 53.4 999.9 130 5.1 7.0 999 9999.9 30.14 99.9 99.9 99.9 202417405201GRMM4 09 53.6 999.9 90 1.9 5.1 999 9999.9 30.15 99.9 99.9 99.9 202417405301GRMM4 09 53.4 999.9 140 1.9 2.9 999 9999.9 30.15 99.9 99.9 99.9 202417405401GRMM4 09 54.0 999.9 170 1.9 2.9 999 9999.9 30.14 99.9 99.9 99.9 202417405501GRMM4 09 54.3 999.9 150 1.9 2.9 999 9999.9 30.14 99.9 99.9 99.9 202417406001GRMM4 09 54.3 999.9 130 1.9 2.9 999 9999.9 30.13 99.9 99.9 99.9 202417406101GRMM4 09 54.1 999.9 110 1.9 2.9 999 9999.9 30.13 99.9 99.9 99.9 202417406201GRMM4 09 53.4 999.9 110 2.9 4.1 999 9999.9 30.13 99.9 99.9 99.9 202417406301GRMM4 09 52.7 999.9 100 5.1 5.1 999 9999.9 30.13 99.9 99.9 99.9 202417406401GRMM4 09 54.0 999.9 60 8.0 8.0 999 9999.9 30.12 99.9 99.9 99.9 202417406501GRMM4 09 53.2 999.9 70 8.0 8.9 999 9999.9 30.12 99.9 99.9 99.9 202417407001GRMM4 09 52.9 999.9 90 7.0 8.0 999 9999.9 30.12 99.9 99.9 99.9 202417407101GRMM4 09 53.1 999.9 100 8.0 8.9 999 9999.9 30.11 99.9 99.9 99.9 202417407201GRMM4 09 53.1 999.9 100 6.0 8.9 999 9999.9 30.12 99.9 99.9 99.9 202417407301GRMM4 09 52.3 999.9 120 6.0 7.0 999 9999.9 30.11 99.9 99.9 99.9 202417407401GRMM4 09 52.2 999.9 130 5.1 7.0 999 9999.9 30.11 99.9 99.9 99.9 202417407501GRMM4 09 52.2 999.9 120 5.1 6.0 999 9999.9 30.11 99.9 99.9 99.9 202417408001GRMM4 09 52.2 999.9 130 5.1 6.0 999 9999.9 30.11 99.9 99.9 99.9 202417408101GRMM4 09 52.2 999.9 130 4.1 6.0 999 9999.9 30.11 99.9 99.9 99.9 202417408201GRMM4 09 52.5 999.9 130 4.1 6.0 999 9999.9 30.11 99.9 99.9 99.9 202417408301GRMM4 09 52.9 999.9 130 4.1 5.1 999 9999.9 30.10 99.9 99.9 99.9 202417408401GRMM4 09 52.9 999.9 140 5.1 6.0 999 9999.9 30.10 99.9 99.9 99.9 202417408501GRMM4 09 53.1 999.9 160 5.1 6.0 999 9999.9 30.10 99.9 99.9 99.9 202417409001GRMM4 09 53.1 999.9 140 6.0 6.0 999 9999.9 30.09 99.9 99.9 99.9 202417409101GRMM4 09 53.2 999.9 130 6.0 7.0 999 9999.9 30.08 99.9 99.9 99.9 202417409201GRMM4 09 52.7 999.9 110 6.0 7.0 999 9999.9 30.08 99.9 99.9 99.9 202417409301GRMM4 09 51.8 999.9 130 5.1 7.0 999 9999.9 30.08 99.9 99.9 99.9 202417409401GRMM4 09 52.7 999.9 150 4.1 5.1 999 9999.9 30.08 99.9 99.9 99.9 202417409501GRMM4 09 53.8 999.9 120 2.9 4.1 999 9999.9 30.08 99.9 99.9 99.9 202417410001GRMM4 09 53.2 999.9 110 2.9 4.1 999 9999.9 30.08 99.9 99.9 99.9 202417410101GRMM4 09 53.1 999.9 100 5.1 6.0 999 9999.9 30.08 99.9 99.9 99.9 202417410201GRMM4 09 53.2 999.9 120 5.1 6.0 999 9999.9 30.08 99.9 99.9 99.9 202417410301GRMM4 09 53.2 999.9 110 4.1 6.0 999 9999.9 30.08 99.9 99.9 99.9 202417410401GRMM4 09 53.2 999.9 100 5.1 5.1 999 9999.9 30.07 99.9 99.9 99.9 202417410501GRMM4 09 53.4 999.9 110 5.1 6.0 999 9999.9 30.07 99.9 99.9 99.9 202417411001GRMM4 09 53.4 999.9 100 6.0 7.0 999 9999.9 30.06 99.9 99.9 99.9 202417411101GRMM4 09 53.6 999.9 90 6.0 7.0 999 9999.9 30.06 99.9 99.9 99.9 202417411201GRMM4 09 53.8 999.9 100 6.0 7.0 999 9999.9 30.05 99.9 99.9 99.9 202417411301GRMM4 09 53.8 999.9 120 6.0 6.0 999 9999.9 30.06 99.9 99.9 99.9 202417411401GRMM4 09 53.8 999.9 110 6.0 6.0 999 9999.9 30.05 99.9 99.9 99.9 202417411501GRMM4 09 53.6 999.9 90 6.0 7.0 999 9999.9 30.04 99.9 99.9 99.9 202417412001GRMM4 09 54.0 999.9 100 6.0 7.0 999 9999.9 30.05 99.9 99.9 99.9 202417412101GRMM4 09 54.1 999.9 110 7.0 7.0 999 9999.9 30.05 99.9 99.9 99.9 202417412201GRMM4 09 54.1 999.9 140 4.1 6.0 999 9999.9 30.05 99.9 99.9 99.9 202417412301GRMM4 09 54.3 999.9 120 6.0 7.0 999 9999.9 30.04 99.9 99.9 99.9 202417412401GRMM4 09 54.5 999.9 110 6.0 7.0 999 9999.9 30.04 99.9 99.9 99.9 202417412501GRMM4 09 54.5 999.9 100 6.0 7.0 999 9999.9 30.04 99.9 99.9 99.9 202417413001GRMM4 09 54.7 999.9 100 5.1 6.0 999 9999.9 30.03 99.9 99.9 99.9 202417413101GRMM4 09 54.9 999.9 120 5.1 6.0 999 9999.9 30.03 99.9 99.9 99.9 202417413201GRMM4 09 55.2 999.9 120 4.1 5.1 999 9999.9 30.03 99.9 99.9 99.9 202417413301GRMM4 09 55.6 999.9 120 6.0 6.0 999 9999.9 30.03 99.9 99.9 99.9 202417413401GRMM4 09 55.8 999.9 110 4.1 6.0 999 9999.9 30.02 99.9 99.9 99.9 202417413501GRMM4 09 56.1 999.9 120 6.0 6.0 999 9999.9 30.02 99.9 99.9 99.9 202417414001GRMM4 09 56.1 999.9 110 6.0 6.0 999 9999.9 30.02 99.9 99.9 99.9 202417414101GRMM4 09 56.1 999.9 80 6.0 6.0 999 9999.9 30.02 99.9 99.9 99.9 202417414201GRMM4 09 54.5 999.9 70 8.9 9.9 999 9999.9 30.00 99.9 99.9 99.9 202417414301GRMM4 09 53.8 999.9 80 9.9 11.1 999 9999.9 29.99 99.9 99.9 99.9 202417414401GRMM4 09 53.2 999.9 90 8.9 11.1 999 9999.9 29.99 99.9 99.9 99.9 202417414501GRMM4 09 53.6 999.9 90 8.0 9.9 999 9999.9 30.00 99.9 99.9 99.9 202417415001GRMM4 09 52.7 999.9 70 8.9 9.9 999 9999.9 29.99 99.9 99.9 99.9 202417415101GRMM4 09 52.3 999.9 80 8.0 9.9 999 9999.9 30.00 99.9 99.9 99.9 202417415201GRMM4 09 52.2 999.9 80 8.9 9.9 999 9999.9 29.99 99.9 99.9 99.9 202417415301GRMM4 09 52.0 999.9 80 9.9 9.9 999 9999.9 29.99 99.9 99.9 99.9 202417415401GRMM4 09 51.8 999.9 70 11.1 11.1 999 9999.9 29.98 99.9 99.9 99.9 202417415501GRMM4 09 51.6 999.9 70 9.9 12.1 999 9999.9 29.98 99.9 99.9 99.9 202417416001GRMM4 09 52.0 999.9 90 9.9 12.1 999 9999.9 29.98 99.9 99.9 99.9 202417416101GRMM4 09 52.3 999.9 90 11.1 12.1 999 9999.9 29.96 99.9 99.9 99.9 202417416201GRMM4 09 52.5 999.9 90 11.1 12.1 999 9999.9 29.96 99.9 99.9 99.9 202417416301GRMM4 09 52.7 999.9 90 11.1 12.1 999 9999.9 29.95 99.9 99.9 99.9 202417416401GRMM4 09 52.9 999.9 80 9.9 12.1 999 9999.9 29.95 99.9 99.9 99.9 202417416501GRMM4 09 52.9 999.9 80 11.1 12.1 999 9999.9 29.95 99.9 99.9 99.9 202417417001GRMM4 09 53.1 999.9 80 12.1 13.0 999 9999.9 29.94 99.9 99.9 99.9 202417417101GRMM4 09 53.1 999.9 90 12.1 13.0 999 9999.9 29.94 99.9 99.9 99.9 202417417201GRMM4 09 53.1 999.9 80 11.1 12.1 999 9999.9 29.93 99.9 99.9 99.9 202417417301GRMM4 09 52.9 999.9 80 11.1 12.1 999 9999.9 29.93 99.9 99.9 99.9 202417417401GRMM4 09 53.1 999.9 80 11.1 12.1 999 9999.9 29.93 99.9 99.9 99.9 202417417501GRMM4 09 53.2 999.9 80 12.1 12.1 999 9999.9 29.92 99.9 99.9 99.9 202417418001GRMM4 09 53.4 999.9 80 13.0 14.0 999 9999.9 29.91 99.9 99.9 99.9 202417418101GRMM4 09 53.6 999.9 80 13.0 14.0 999 9999.9 29.91 99.9 99.9 99.9 202417418201GRMM4 09 53.2 999.9 80 12.1 14.0 999 9999.9 29.90 99.9 99.9 99.9 202417418301GRMM4 09 52.5 999.9 80 13.0 15.0 999 9999.9 29.90 99.9 99.9 99.9 202417418401GRMM4 09 52.3 999.9 80 11.1 14.0 999 9999.9 29.90 99.9 99.9 99.9 202417418501GRMM4 09 52.3 999.9 80 9.9 12.1 999 9999.9 29.89 99.9 99.9 99.9 202417419001GRMM4 09 52.5 999.9 100 12.1 13.0 999 9999.9 29.89 99.9 99.9 99.9 202417419101GRMM4 09 53.1 999.9 100 12.1 14.0 999 9999.9 29.89 99.9 99.9 99.9 202417419201GRMM4 09 53.2 999.9 90 12.1 13.0 999 9999.9 29.88 99.9 99.9 99.9 202417419301GRMM4 09 53.6 999.9 100 11.1 13.0 999 9999.9 29.88 99.9 99.9 99.9 202417419401GRMM4 09 53.8 999.9 100 13.0 15.0 999 9999.9 29.88 99.9 99.9 99.9 202417419501GRMM4 09 54.1 999.9 100 15.0 16.9 999 9999.9 29.87 99.9 99.9 99.9 202417420001GRMM4 09 54.9 999.9 100 15.0 16.9 999 9999.9 29.87 99.9 99.9 99.9 202417420101GRMM4 09 54.9 999.9 90 14.0 15.9 999 9999.9 29.86 99.9 99.9 99.9 202417420201GRMM4 09 54.7 999.9 90 14.0 15.9 999 9999.9 29.86 99.9 99.9 99.9 202417420301GRMM4 09 54.9 999.9 90 13.0 15.0 999 9999.9 29.85 99.9 99.9 99.9 202417420401GRMM4 09 55.0 999.9 90 15.9 16.9 999 9999.9 29.84 99.9 99.9 99.9
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  at | dp | wd | ws | wg | cc | sr | bp | wt | wvh | wvp
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  [every 3rd data value plotted]
125 matching elements
0.040 sec

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