Iron dome concentrates on those warheads likely to hit populated and/or industrial areas. Warheads missing them (hitting desert, mountains, etc.) are left alone.
Live Tel Aviv camera: https://www.youtube.com/watch?v=1Tm2w7vj3zU
I’m seeing a lot of explosions on the horizon of Tel Aviv, but looks like nothing hit the city proper.
Iron dome is taking out a lot of it.