This theory assumes that the fire had got incredibly close. Indeed, close enough to burn you as well.
You would think that one of the following things may have happened prior to that:
i) You know there is a forest fire in the vicinity & are therefore watchful over its progress (even at night).
ii) You are awoken by a neighbour/the fire service/the police as they see the fire rapidly progress towards your property.
iii) You know the fire is close to choose to move elsewhere until all is said and done.
Something doesn't add up & I cannot fathom what.