VCTS

VCTS is a term used in TAFs to describe thunderstorm situations where there is high regional confidence of occurrence of thunderstorms but a corresponding low probability at the aerodrome itself. For regional sites, VCTS refers to thunderstorms that will occur more than 5SM away from the terminal but within a 10SM radius. At hub airports where the terminal area covers a larger region, the term VCTS must also cover a larger region, being outside of 5SM but within 45SM.