I'm very surprised that it would close during President's day week. I went to Disney during that week last year and it was INSANE, so I assume at Universal it's a similar story.
I did read that Hagrid's suffered damage during the hurricanes a few months ago (just like Jurassic Park and Dudley) so the refurb could be for fixing the damage.
I believe it was Alicia Stella but someone on Twitter confirmed this morning it is closing due to damage sustained from the hurricane as it was still operating under a makeshift queue and had a lot of debris that still needed to be cleared.