[Chaos-l] Geomagnetic STORM: what does it mean?

[Stewart-Taylor, Jon]

Hi all.  The geomagnetic icon on the observing conditions page says
"storm", but following the various links didn't lead me to an easily
understandable description of what that means to us as amateur
astronomers.  

Anybody have an explanation or link to an explanation?

Thanks.

J.
-- 
Jon Stewart-Taylor: joncst at earthlink.net; 919-967-2912	
Chapel Hill Astronomy: http://rtpnet.org/chaos/	
Light pollution information: http://www.ncdarksky.org/