You have no doubt, by now already heard of the
As predicted, the cold-core upper-trough has moved over the interior today (Thurs 16th). The combination of upper instbaility and tropical mositure is producing widespread thundershowers over parts of the Free State and Eastern Cape. This ia likely to spread to Lesotho overnight, and produce heavy snow on the high ground (above 2000-2500m elevation).
The EUMetsat Airmass animation gives a nice overview of developments: http://oiswww.eumetsat.org/IPPS/html/MSG/RGB/AIRMASS/SOUTHERNAFRICA/
This SAWS combined satellite and radar chart shows the band of precipitation clearly: