"Police said initial information indicates the driver was in training and that the truck flipped after a sharp turn shifted the weight of the ice too quickly"
<sigh> Some reporter - it's a deicing truck; I doubt that the cops said "ice".
I've not driven a deicing truck, but I have driven a pickup with a BIG water tank in the bed. Lots of what marine engineers call "free water surface" and a high CG. It was easy to flip, especially when partly empty, and I'll bet a deice truck is similar.