this is the
ARTG mid-Sound

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Tide Stage

Related Wx:
Groton/NL Airport
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NY City Radar
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Groton Forecast
National Radar

Other Stations:
Central Sound
Execution Rocks
Eastern Sound
Norwalk Harbor
Thames River
Ledge Light Wx
Western Sound

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Sampling interval is every 15 minutes

Note: Wind Direction is the direction from which the wind is blowing in degrees True

Apparent Temperature adjusts the air temperature for the effects of wind (wind chill) or the effects of humidity (heat index) as follows:
  • Wind Chill is calculated from the 2001 formula provided by the National Weather Service (DETAILS) and is only computed when the air temperature is below 65 degF and the wind > 3 mph.
  • Heat Index is also calculated using a NWS formula (DETAILS) and is only determined when the air temperature exceeds 75 degF and humidity > 40%.