I took Doppler out for a quick walk this morning at 3:30 AM. She looks down. I look up.
The stars were mainly gone. A low gray cloud deck had moved in. Nothing unusual. I went to bed.
By the time I woke up the clouds were gone. It’s like this a lot in SoCal–sunny days/cloudy nights.
There is a reason. It’s called the marine layer. Let me explain.