what does this abbreviation mean?

Question

What does this mean:

a force 10 disaster area

it is taken from Mr. Bean Facebook page ?

In particular what means the number "10" there ?

Answer 1

It is a reference to the Beaufort scale of wind speeds. A force 10 gale is defined as "Storm, whole gale", i.e. a damaging and dangerous storm.

The Beaufort scale is specific to wind speeds, and not generally applied to other disasters, so the usage that you quote is metaphorical.