Looks like the effects of the flare started being felt by satellites a few minutes ago. Nothing wrong so far.
This solar flare has a intensity rating of X5.4.
To put this into prospective we have had 30 solar flares X9.0 or above in last 36 years... The biggest was X28 on 04/11/03... 17 have been X10.0 or greater..
It's a good point - but worth noting that the majority of these did not produce Earth-directed CMEs.