Silent explosion creates mushroom shaped dirt cloud?

Question

When i was in middle school i remember seeing a dirt cloud rise behind the high school, not quite sure how high but at least 50 ft or so. no one heard or felt anything. behind the high school are some hills that are blocked off because of a military weapon base that has been closed 6 years earlier and it happened not even close to the buildings of the base. there is also a train that runs through near there. what could this cloud be caused by? this is in California and tornadoes are rare and it was forming up and not moving anywhere so it couldn't be that

Answer 1

Whatever it was it was top secret, you aren't going to get any answers here.

Answer 2

maybe it was somthing collapsing inward ie a hole had you considered a ufo taking off??

Answer 3

Right....what you are describing sounds like nuclear weapons. But based on your proximity, this doesn't sound plausable.

What they h*ll kind of parents send their kids to a school right next to a military weapon base?

Answer 4

Wow a 50 ft dust cloud id bet you could almost see the blue sky behind it well I have to say... it WAS NOT A NUCLEAR WEAPON

The train was carrying some gravel and dumped it

dum dum dum

or a deconstruction of a building was taking place - no they don’t always use explosives they can pull them over = dust cloud

or a collapse of an under ground facility would make quite a dust cloud

Or a helly took off

All of these still apply to a 100 ft dust cloud that is black with dust

I think these are a little more likely them

im sure you can dream up other ez possibilities (: