Tell you one thing though. It was really something hey?
Like the one in Vegas years ago.
Even at a ground burst, a nuke would send out a flash of light that would blind anyone who happened to be looking that way.
This one had a fire going-like you said, and then it touched off something.
Several theories being bandied about right now.
Nitrate processing plant.
Grain elevator.
Tanker fueling/defueling.
Weapons/fireworks raw materials warehouse.
I’m leaning towards that last one judging from how the smaller initial fire appeared to have bright phosphorous/magnesium streaks. There was another Twitter video, from a now most likely deceased camera person, from right across the street showing stuff cooking off before the big blast.