Skip to main content
NOAA / GLERL / CoastWatch Great Lakes Node / NOAAPORT Page

Realtime Great Lakes Weather Data and Marine Observations

 GTLM4: NWS GrndTraverseLtMI                                  
CMAN Station
Lat: 45.21°, Lon: -85.55°
Elevation: 176 m
Anemometer Height: 16 m
Related Site: NDBC

Current Time: 1231 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 (108)
 (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
202510800001GTLM4   19  59.5 999.9 180  5.1 12.1 999 9999.9  29.86 99.9 99.9 99.9
202510800101GTLM4   19  59.4 999.9 190  7.0 13.0 999 9999.9  29.86 99.9 99.9 99.9
202510800201GTLM4   19  59.7 999.9 190  7.0 15.0 999 9999.9  29.86 99.9 99.9 99.9
202510800301GTLM4   19  59.5 999.9 190  7.0 12.1 999 9999.9  29.86 99.9 99.9 99.9
202510800401GTLM4   19  59.5 999.9 190  6.0 13.0 999 9999.9  29.86 99.9 99.9 99.9
202510800501GTLM4   19  58.6 999.9 180  6.0 15.0 999 9999.9  29.86 99.9 99.9 99.9
202510801001GTLM4   19  58.3 999.9 180  5.1 14.0 999 9999.9  29.85 99.9 99.9 99.9
202510801101GTLM4   19  58.3 999.9 180  6.0 15.9 999 9999.9  29.85 99.9 99.9 99.9
202510801201GTLM4   19  57.6 999.9 180  5.1 14.0 999 9999.9  29.85 99.9 99.9 99.9
202510801301GTLM4   19  57.2 999.9 190  5.1 15.0 999 9999.9  29.85 99.9 99.9 99.9
202510801401GTLM4   19  57.0 999.9 190  4.1 14.0 999 9999.9  29.84 99.9 99.9 99.9
202510801501GTLM4   19  56.3 999.9 180  5.1 14.0 999 9999.9  29.85 99.9 99.9 99.9
202510802001GTLM4   19  55.9 999.9 190  6.0 15.9 999 9999.9  29.84 99.9 99.9 99.9
202510802101GTLM4   19  55.8 999.9 170  7.0 15.9 999 9999.9  29.84 99.9 99.9 99.9
202510802201GTLM4   19  55.4 999.9 180  6.0 15.0 999 9999.9  29.83 99.9 99.9 99.9
202510802301GTLM4   19  55.9 999.9 180  7.0 13.0 999 9999.9  29.83 99.9 99.9 99.9
202510802401GTLM4   19  56.1 999.9 180  7.0 15.0 999 9999.9  29.83 99.9 99.9 99.9
202510802501GTLM4   19  56.1 999.9 170  5.1 16.9 999 9999.9  29.83 99.9 99.9 99.9
202510803001GTLM4   19  56.1 999.9 180  7.0 15.9 999 9999.9  29.82 99.9 99.9 99.9
202510803101GTLM4   19  56.5 999.9 180  6.0 15.0 999 9999.9  29.82 99.9 99.9 99.9
202510803201GTLM4   19  56.5 999.9 180  7.0 15.0 999 9999.9  29.82 99.9 99.9 99.9
202510803301GTLM4   19  56.3 999.9 190  5.1 16.9 999 9999.9  29.83 99.9 99.9 99.9
202510803401GTLM4   19  56.5 999.9 180  9.9 15.9 999 9999.9  29.82 99.9 99.9 99.9
202510803501GTLM4   19  56.3 999.9 180  6.0 18.1 999 9999.9  29.81 99.9 99.9 99.9
202510804001GTLM4   19  56.5 999.9 190  8.0 15.0 999 9999.9  29.80 99.9 99.9 99.9
202510804101GTLM4   19  56.8 999.9 180  8.0 18.1 999 9999.9  29.80 99.9 99.9 99.9
202510804201GTLM4   19  57.0 999.9 180  8.0 21.0 999 9999.9  29.80 99.9 99.9 99.9
202510804301GTLM4   19  56.8 999.9 180  8.9 19.0 999 9999.9  29.81 99.9 99.9 99.9
202510804401GTLM4   19  56.8 999.9 190  7.0 15.0 999 9999.9  29.82 99.9 99.9 99.9
202510804501GTLM4   19  56.7 999.9 180  5.1 19.0 999 9999.9  29.81 99.9 99.9 99.9
202510805001GTLM4   19  56.7 999.9 180  8.0 15.0 999 9999.9  29.81 99.9 99.9 99.9
202510805101GTLM4   19  55.8 999.9 190  6.0 16.9 999 9999.9  29.80 99.9 99.9 99.9
202510805201GTLM4   19  55.0 999.9 180  5.1 15.0 999 9999.9  29.80 99.9 99.9 99.9
202510805301GTLM4   19  55.4 999.9 180  7.0 15.9 999 9999.9  29.79 99.9 99.9 99.9
202510805401GTLM4   19  55.8 999.9 180  5.1 18.1 999 9999.9  29.79 99.9 99.9 99.9
202510805501GTLM4   19  55.6 999.9 180  7.0 15.9 999 9999.9  29.79 99.9 99.9 99.9
202510806001GTLM4   19  55.8 999.9 190  5.1 12.1 999 9999.9  29.79 99.9 99.9 99.9
202510806101GTLM4   19  55.6 999.9 180  7.0 15.0 999 9999.9  29.78 99.9 99.9 99.9
202510806201GTLM4   19  54.9 999.9 180  8.0 15.0 999 9999.9  29.77 99.9 99.9 99.9
202510806301GTLM4   19  55.0 999.9 180  8.0 16.9 999 9999.9  29.77 99.9 99.9 99.9
202510806401GTLM4   19  54.7 999.9 180  7.0 19.0 999 9999.9  29.76 99.9 99.9 99.9
202510806501GTLM4   19  53.4 999.9 180  8.0 18.1 999 9999.9  29.77 99.9 99.9 99.9
202510807001GTLM4   19  50.9 999.9 200  7.0 15.0 999 9999.9  29.76 99.9 99.9 99.9
202510807101GTLM4   19  48.9 999.9 190  7.0 15.0 999 9999.9  29.76 99.9 99.9 99.9
202510807201GTLM4   19  48.0 999.9 180  6.0 14.0 999 9999.9  29.75 99.9 99.9 99.9
202510807301GTLM4   19  47.5 999.9 190  8.9 15.0 999 9999.9  29.75 99.9 99.9 99.9
202510807401GTLM4   19  47.7 999.9 200  9.9 18.1 999 9999.9  29.74 99.9 99.9 99.9
202510807501GTLM4   19  47.8 999.9 180  8.0 16.9 999 9999.9  29.74 99.9 99.9 99.9
202510808001GTLM4   19  47.1 999.9 180  5.1 15.9 999 9999.9  29.73 99.9 99.9 99.9
202510808101GTLM4   19  47.1 999.9 180  6.0 15.9 999 9999.9  29.72 99.9 99.9 99.9
202510808201GTLM4   19  47.3 999.9 180  6.0 16.9 999 9999.9  29.72 99.9 99.9 99.9
202510808301GTLM4   19  46.9 999.9 180  8.0 16.9 999 9999.9  29.72 99.9 99.9 99.9
202510808401GTLM4   19  47.1 999.9 170  7.0 15.0 999 9999.9  29.71 99.9 99.9 99.9
202510808401GTLM4   19  47.1 999.9 170  7.0 21.0 999 9999.9  29.71 99.9 99.9 99.9
202510808501GTLM4   19  46.9 999.9 170  7.0 13.0 999 9999.9  29.71 99.9 99.9 99.9
202510809001GTLM4   19  46.8 999.9 180  6.0 15.0 999 9999.9  29.71 99.9 99.9 99.9
202510809101GTLM4   19  46.8 999.9 180  6.0 15.9 999 9999.9  29.70 99.9 99.9 99.9
202510809201GTLM4   19  46.6 999.9 170  7.0 14.0 999 9999.9  29.69 99.9 99.9 99.9
202510809301GTLM4   19  46.6 999.9 190  5.1 12.1 999 9999.9  29.69 99.9 99.9 99.9
202510809401GTLM4   19  46.6 999.9 170  6.0 14.0 999 9999.9  29.68 99.9 99.9 99.9
202510809501GTLM4   19  46.8 999.9 170  7.0 15.0 999 9999.9  29.66 99.9 99.9 99.9
202510810001GTLM4   19  46.9 999.9 170  7.0 19.0 999 9999.9  29.65 99.9 99.9 99.9
202510810101GTLM4   19  46.6 999.9 170  7.0 19.0 999 9999.9  29.64 99.9 99.9 99.9
202510810201GTLM4   19  46.6 999.9 170  6.0 15.0 999 9999.9  29.63 99.9 99.9 99.9
202510810301GTLM4   19  46.0 999.9 170  6.0 15.9 999 9999.9  29.62 99.9 99.9 99.9
202510810401GTLM4   19  46.2 999.9 180  7.0 19.0 999 9999.9  29.65 99.9 99.9 99.9
202510810501GTLM4   19  46.6 999.9 190  8.0 18.1 999 9999.9  29.68 99.9 99.9 99.9
202510811001GTLM4   19  46.6 999.9 180  8.9 19.0 999 9999.9  29.69 99.9 99.9 99.9
202510811101GTLM4   19  46.8 999.9 190  7.0 15.0 999 9999.9  29.68 99.9 99.9 99.9
202510811201GTLM4   19  47.1 999.9 180  8.0 14.0 999 9999.9  29.67 99.9 99.9 99.9
202510811301GTLM4   19  47.3 999.9 180  6.0 15.0 999 9999.9  29.67 99.9 99.9 99.9
202510811401GTLM4   19  47.7 999.9 180  6.0 16.9 999 9999.9  29.67 99.9 99.9 99.9
  New Graph (click on parameter):                                      
  at | dp | wd | ws | wg | cc | sr | bp | wt | wvh | wvp
google chart
  [every 2nd value plotted]
72 matching elements
0.020 sec
This Web page created and maintained by Greg Lang, NOAA/GLERL,
[Return to NOAAPORT page]