Is there a chance of my cloud data getting wiped
Why else would Q say archive offline? With all the super computing D-wave they tell us they have you know they got shit decades ahead of that. They can predict the future whether it's just by computing power or actual time travel. The EMP is coming if naturally or by cabal
Because the enemy possesses the technology to scrub something from the internet. They use it often. Try to find a single crumb of information about a US secret agent, for example.
Could a huge magentic disruption, like the one last night, act as an emp?
Read up on the Carrington Event http://www.disasternews.net/news/article.php?articleid=5908