this is the
Ledge Light
Met Station:

This Station:
Location Map
About Station
12 Hr Weather
Latest Wx
Tide Stage

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

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

Site Links:
Station Locations
Station Status
Site Index
MYSound Home

Sampling interval is every 5 minutes

Average wind speed is the average taken over a 5 minute period with a 1 second sampling interval (300 samples).
Gust is the maximum 5 second averaged wind speed (60 samples) taken over the 5 minute sampling period.
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%.