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: 0803 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 (338)
 (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
202433800001GTLM4   19  36.1 999.9  20 15.9 18.1 999 9999.9  30.31 99.9 99.9 99.9
202433800101GTLM4   19  36.0 999.9  10 15.9 19.0 999 9999.9  30.31 99.9 99.9 99.9
202433800201GTLM4   19  35.8 999.9  40 19.0 21.0 999 9999.9  30.31 99.9 99.9 99.9
202433800301GTLM4   19  35.4 999.9  30 18.1 22.0 999 9999.9  30.31 99.9 99.9 99.9
202433800401GTLM4   19  34.9 999.9  40 12.1 19.0 999 9999.9  30.32 99.9 99.9 99.9
  New Graph (click on parameter):                                      
  at | dp | wd | ws | wg | cc | sr | bp | wt | wvh | wvp
google chart
5 matching elements
0.013 sec
This Web page created and maintained by Greg Lang, NOAA/GLERL,
[Return to NOAAPORT page]