Fire Whirl Evolution Observed during a Valley Wind-Sea Breeze Reversal

Figure 2

A map of the experiment site and instrument locations. The burn unit is indicated by the solid black line. The solid arrow indicates initial wind direction prior to the wind shift. The dashed red lines indicate approximate positions of the fire front: 𝑇₁=11∶45, 𝑇₂=12∶30, and 𝑇₃=12∶42.