Aerial firefighters are some of the most badass pilots out there, flying through smoke, extreme heat and turbulences, in often battered aeroplanes to drop water with amazing skills and courage. Sometimes, however, they get to do fun stuff like this: put out a semi truck fire on a road in the middle of nowhere.
From the YouTube description:
This pilot has skills. The fire boss called for a direct drop on a semi that was on fire. People cleared out because the force of the drop would've thrown them to the ground.