Check K-index before flying through Friday

[beeline]

Double solar storms headed to Earth raise disruption concerns

http://uk.reuters.com/article/2014/09/12/us-space-solarstorms-idUKKBN0H62HN20140912

 

[ProfessorStein]

Yep. Already being discussed in this (admittedly, very poorly titled) thread.

viewtopic.php?t=25337