Q : Are there tornadoes in South Africa?
Conditions are slowly starting to change, with a few weak to moderate intensity cold-fronts arriving during the next few days (not enough to bring significant rain).
One of the charts that I look at, helps monitor large-scale disturbances in the atmosphere. This Nasa AIRS infrared temperature chart (700hPa level in Fahrenheit) shows a warm patch currently over Southern Africa, with an approaching cold-core upper-trough in the South Atlantic (far to the SW of Cape Town). See: http://airs.jpl.nasa.gov/nrt/Air_Temperature_Day_3DayFull.jpg
Over the next few days these (global) disturbances will migrate from west to east, and start to influence the weather over the SW-Cape.