Temporal variation in the (a) instantaneous maximal plasma density (blue line), and minimum temperatures (red line), and (b) instantaneous absolute peak velocities. The sharp rise in the density, and drop in the minimum temperature over two orders of magnitude at ≈150 min, signals the runaway thermal instability causing local condensations, when the absolute peak velocities, v_x, v_y, and v_z, also rise sharply. Here, the velocities are scaled in terms of the Alfvén velocity, v_a ≈ 261 km s⁻¹.