In just a space of about 6 hours just because people are rushing to move their Bitcoins to exchanges and quickly make profit off it. However, the fees will go back to normal though once the rush has subsided.
Even 12 sat/byte transactions are getting confirmed right now, and then the size of unconfirmed transactions in the mempool has dropped. I would's say that's bad. A few weeks back, this was just a dream.
Of course, the upcoming difficulty adjustment with 48 hours from now could slightly change things. Blocks have been getting confirmed much quicker on average.