The Boltek Lightning Detection Network (BLDN) is a free up to the minute source of high accuracy lightning data.   Raw lightning data is provided through a combination of corporate owned and user owned lightning detectors.  Boltek processes this raw data and provides the lightning location data to end users in a variety of formats.

Coverage is currently limited to central Florida but is expanding rapidly.

US National Lightning Map
(JPG image. Refreshes every minute.)
Florida Lightning Map
(Google Earth Plugin. Updates each minute.)
US National Lightning Map
(Google Earth Plugin. Updates each minute.)