SDO/HMI line of sight magnetic field maps saturated at ±100 G for 100″ × 100″ FOVs co-spatial to the IRIS SJI data. These maps were constructed using the SDO/HMI frame that was closest in time to the IRIS raster identified as the start-time of each of the seven regions discussed in detail here. The red labelled boxes indicate the approximate locations of each of these regions and outline the FOVs plotted at six time-steps in Fig. 9. Notably, B1 and B2 share a first time-step and, therefore, share a panel.