
The TORRO tornado intensity scale (or T-Scale) is a scale measuring tornado intensity between T0 and T11. It was developed by Terence Meaden of the Tornado and Storm Research Organisation (TORRO), a meteorological organisation in the United Kingdom, as an extension of the Beaufort scale. == History and derivation from Beaufort scale == The scale w...
Found on
http://en.wikipedia.org/wiki/TORRO_scale

A scale of tornado intensity ranging from TO with winds 17-24 mph to T6 winds 73-83 mph to super tornadoes T10 with winds above 121 mph.
Found on
http://www.metcheck.com/OTHER/glossary.asp
No exact match found.