The passage of the cut-off low pressure system is expected to result in damaging wind and waves in KwaZulu-Natal on Wednesday.
A man who had climbed a tree after his vehicle got stuck in the fast flowing Umbilo River was successfully rescued.
The South African Weather Service (SAWS) has cautioned disaster teams as KZN is likely to experience more rain in the coming months.
SAWS had initially issued a yellow level 4 rain warning for KZN this weekend but it has now increased to an orange level 5.