If you are anywhere near Palomar Mountain today you probably noticed the smoke plume. For me the view is giving strong memories of 2007's Poomacha Fire.
The good news is that this is not a wild fire. The National Forest Service is performing a 20-acre "prescribed burn" in the Fry Creek area.
Unfortunately, it is still rather close to the observatory and the smoke is likely to have a major impact on observing tonight.
Here's the view from the 60-inch telescope around noon today:
Even from well off of Palomar the smoke plume is rather impressive as you can see in this photo from around 4 p.m.
Alas, these are low quality shots captured from my phone. :(