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Realtime Great Lakes Weather Data and Marine Observations


CNII2: NWS Northerly Is IL                                  
CMAN Station
Lat: 41.86°, Lon: -87.61°
Elevation: 180 m
Anemometer Height: 10 m
Related Site: NDBC


Current Time: 1058 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 (184)
 (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            C     C  Deg  m/s  m/s  %   W/m2    mb     C    m    s 202518400001CNII2 19 25.4 18.9 150 2.6 3.1 999 9999.9 9999.9 99.9 99.9 99.9 202518400151CNII2 19 25.2 18.3 160 3.1 3.1 999 9999.9 9999.9 99.9 99.9 99.9 202518400301CNII2 19 25.3 17.6 0 0.0 3.1 999 9999.9 9999.9 99.9 99.9 99.9 202518400451CNII2 19 25.7 16.7 120 1.0 3.1 999 9999.9 9999.9 99.9 99.9 99.9 202518401001CNII2 19 28.3 13.3 270 3.6 3.6 999 9999.9 9999.9 99.9 99.9 99.9 202518401151CNII2 19 29.0 13.5 250 4.6 99.9 999 9999.9 9999.9 99.9 99.9 99.9 202518401301CNII2 19 28.8 13.8 280 3.6 99.9 999 9999.9 9999.9 99.9 99.9 99.9 202518401451CNII2 19 28.7 14.1 300 3.1 3.6 999 9999.9 9999.9 99.9 99.9 99.9 202518402001CNII2 19 28.5 14.2 270 4.6 5.7 999 9999.9 9999.9 99.9 99.9 99.9 202518402151CNII2 19 28.4 14.0 240 1.5 5.7 999 9999.9 9999.9 99.9 99.9 99.9 202518402301CNII2 19 28.4 14.2 280 2.1 5.7 999 9999.9 9999.9 99.9 99.9 99.9 202518403001CNII2 19 28.0 14.6 280 3.1 5.7 999 9999.9 9999.9 99.9 99.9 99.9 202518403151CNII2 19 27.9 14.5 270 3.6 5.7 999 9999.9 9999.9 99.9 99.9 99.9 202518403301CNII2 19 27.9 14.8 260 1.0 5.7 999 9999.9 9999.9 99.9 99.9 99.9 202518403451CNII2 19 27.4 14.7 270 1.5 5.7 999 9999.9 9999.9 99.9 99.9 99.9 202518404001CNII2 19 27.5 14.7 280 3.1 4.1 999 9999.9 9999.9 99.9 99.9 99.9 202518404151CNII2 19 27.1 14.7 270 1.5 4.1 999 9999.9 9999.9 99.9 99.9 99.9 202518404451CNII2 19 26.9 15.5 280 2.6 4.1 999 9999.9 9999.9 99.9 99.9 99.9 202518405001CNII2 19 27.0 15.5 290 3.1 4.1 999 9999.9 9999.9 99.9 99.9 99.9 202518405151CNII2 19 23.6 18.8 40 5.1 99.9 999 9999.9 9999.9 99.9 99.9 99.9 202518405301CNII2 19 23.0 19.1 70 6.2 99.9 999 9999.9 9999.9 99.9 99.9 99.9 202518405451CNII2 19 22.8 18.8 80 3.6 4.1 999 9999.9 9999.9 99.9 99.9 99.9 202518406001CNII2 19 22.6 19.1 110 2.6 7.2 999 9999.9 9999.9 99.9 99.9 99.9 202518406151CNII2 19 22.4 19.2 90 1.0 7.2 999 9999.9 9999.9 99.9 99.9 99.9 202518406301CNII2 19 22.3 19.3 120 1.0 7.2 999 9999.9 9999.9 99.9 99.9 99.9 202518406451CNII2 19 22.1 19.2 120 1.5 7.2 999 9999.9 9999.9 99.9 99.9 99.9 202518407001CNII2 19 22.0 19.3 170 2.1 3.6 999 9999.9 9999.9 99.9 99.9 99.9 202518407151CNII2 19 22.2 19.2 190 2.6 3.6 999 9999.9 9999.9 99.9 99.9 99.9 202518407301CNII2 19 22.9 18.7 220 1.5 3.6 999 9999.9 9999.9 99.9 99.9 99.9 202518407451CNII2 19 23.0 18.3 240 2.1 3.6 999 9999.9 9999.9 99.9 99.9 99.9 202518408001CNII2 19 23.3 18.2 260 2.6 3.1 999 9999.9 9999.9 99.9 99.9 99.9 202518408151CNII2 19 23.6 17.8 260 2.1 3.1 999 9999.9 9999.9 99.9 99.9 99.9 202518408301CNII2 19 23.8 17.7 250 2.6 3.1 999 9999.9 9999.9 99.9 99.9 99.9 202518408451CNII2 19 23.8 17.4 240 2.6 3.1 999 9999.9 9999.9 99.9 99.9 99.9 202518409001CNII2 19 23.7 17.6 250 2.6 3.6 999 9999.9 9999.9 99.9 99.9 99.9 202518409151CNII2 19 23.9 17.4 250 3.1 3.6 999 9999.9 9999.9 99.9 99.9 99.9 202518409301CNII2 19 23.9 17.4 270 2.6 3.6 999 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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