File photo
Motorists have been urged to drive with caution as potential disruptive snow on the roads and railways could lead to the closure of some mountain passes.
The South African Weather Services (SAWS) says the alert is being issued for Thursday morning.
Affected areas include Molteno, Barkley East, Lady Grey and Matatiele in the Eastern Cape, while bitterly cold temperatures with heavy snow are expected over Lesotho.
Small-stock farmers should also take caution.
Bursts of showers and excessive lightning may result in localised damage to infrastructure and settlements.
Isolated thunderstorms could produce strong, damaging winds over the stated regions.
Swells may reach 6.5 meters offshore of the south coast of the Eastern Cape, and those entering the harbour may cause a lot of boat movements, which can damage some vessels and break mooring lines.
Disruptive rain in places has already impacted some communities along the south coast of KwaZulu-Natal and the Wild Coast of the Eastern Cape on Tuesday.
SAWS says widespread clearance is expected later on Thursday and the remainder of the week will see cool and largely rain-free conditions.
