[curiousfab]

As you can see if you scroll down the page (with many alerts of a similar magnitude in the last weeks), this is nothing unusual, solar disturbances of this level happen all the time.

We are getting closer to the peak of solar cycle 25 and increased solar activity is to be expected for the next few years:

https://en.wikipedia.org/wiki/Solar_cycle_25

Good for radio amateurs (simply speaking, more solar activity results in better radio propagation opportunities), potentially a risk for satellites and power grids.

[jimhefferon]

People might be interested that there are lots of free apps that will tell you what the k index is and maybe send you a notification if it goes above a certain number. Around here numbers above seven are interesting.

[etrautmann]

interesting in what way? does it relate to the aurora or do you mean interesting in terms of taking out power and interfering with satellites?

[jimhefferon]

Um, because people here are interested in stuff like solar numbers. Maybe some are hamsters, for instance.

[ilikeitdark]

Didn't know that. Any you can recommend?

[jimhefferon]

I use an Android app called Aurora. In honestly though, I didn't exhaustively check all the options. But it works well.