http://www.sord.nv.doe.gov/Lightning/Lightning-sord.htm
nearly real time


junius wrote:
weather channel's U.S. lightning strikes map:

http://www.weather.com/maps/activity...kes_large.html

although usu 15 mins or so behind current time, it can give you an idea
of where nearby thunderstorms are occurring (and let you know if one is
headed your way).