Apparently the Mount Wilson Observatory survived the night. The web cam is still active and this morning did not show any damages on the mountain. The director posted a very positive message on its blog as well [update: the blog was relocated at 6pm here].The situation remains still uncertain since the wild fire is very close to the top of the mountain as you can see on the web cam image taken at 12:40pm and on the LA times map attached here.
Let’s hope the good news will remain like this. It has been a roller coaster of emotions for a lot of people over there.
Clarification (from a comment that I received yesterday): I do not work at the MWO. I am a planetary astronomer who uses facilities around the world, mostly the Keck telescope, VLT and Gemini telescopes, but also mid-sized telescopes available at Lick observatory (e.g. Shane Telescope) and Kitt Peak observatory (e.g. super-Lotis) and elsewhere. In fact, I never used any instruments of the MWO, but I am planning to 🙂 I do care about this observatory because it contains historical heritages (the Hale-60in and Hooker-100in telescopes for instance), state-to-the-art instruments (CHARA, AO in visible), and a lot of my colleagues depend on this observatory to conduct their research. The astronomy community is like a small family and the observers are even a tinier part of it. The loss of facilities will affect all of us and what is happening at Mount Wilson could also happen at Mount Hamilton.
Positive thoughts… and clear skies back!
UPDATES at 1:17pm: Just when I was writing this post the fire indeed reached the mountain top but it is for the moment weak. KTLA has a live stream of the situation. I am attaching a few snapshot showing the observatory (at 1:17pm). No apparent damage so far but it is difficult to assess them due to the dense smoke.