On Dec 1, 8:27*pm, Simon wrote:
But what's mini about them? Weak yes. Mini no. There are powerful life
destroying tornadoes in the US that are thin.

Simon

You're being too literal. Mini = small, and by extension weak.
People have used the term to describe such afflictions as a heart
attack or stroke, where the patient is barely aware that they have
happened. I would not like the term to be used in formal weather
forecasts but it's OK journalistically or in general conversation.

Tudor Hughes, Warlingham, Surrey.