Nah, thats just the air national guard coming or going. I live nearby and they thunder in and out once in the morning and then again in the evening. On clear days they don’t make much noise. If it’s cloudy my windows rattle and my ears pop. Ok by me, makes me feel safe. They look really cool at night and in the fog.
Personally from the shape of the lights.. and the flashing.. somehow I get the feeling that Fresno was over flighted by a B-2 Spirit Bomber...