St. Louis warehouse fire flashover <https://tinyurl.com/warehouse-flashover>
?


With all due respect to the characterization of this event and the breaking
it down in terms of physics, the chance of this being a flashover:

is possible, but I don't think it likely in this scenario.


Flashover is powerful, but overpressurize a brick wall, powerful?  Possible
with the larger surface areas, but highly improbable from flashover.

Non-buoyant brown smoke is not a traditional indicator of flashover; more
an indication of dust entrained from an expansion that occurred inside.
No flames out any vents that I coud detect, traditional sign of a flashover.
No bottom-of-the-vent air inflow (regardless of how low the neutral plane
may go for a warehouse flashover) present in the 'post-flashover'.

It seems much less to be a flashover and several time more likely to be a
couple of small deflagrations

Great coverage of the fire, thanks for sharing !

Scot Deal
Excelsior Risk and Fire Engineering
gms:  + 420 606 981 267
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