Wild winds of up to 100 km per hour are causing chaos across Victoria leaving at least 43,000 people without power.

A severe weather warning has been issued for the southern part of the state with the Bureau of Meteorology having warned the gusts are also likely to be accompanied by passing showers and thunderstorms.  

More than 150 weather-related incidents including fallen trees and building damage have been recorded with an 18-year-old man and another teenage boy have been taken to hospital due to weather-related injuries.