Heavy rain is expected in KZN on Tuesday.
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KwaZulu-Natal's disaster management teams are on high alert as severe weather warnings escalate to Level 6 in parts of the province.
Authorities are preparing for heavy rainfall and possible flooding linked to an approaching cold front and cut-off low system.
Reverend Thulasizwe Buthelezi, the KZN MEC for Cooperative Governance and Traditional Affairs (Cogta), said emergency coordination structures had been activated in response to the developing weather conditions.
"Motorists are urged to avoid travel where possible, reduce speed in poor visibility, and never attempt to drive through flooded roads or bridges," he said.
The Provincial Disaster Management Centre (PDMC) has established an emergency Joint Operations Centre (JOC), bringing together district disaster management teams from Zululand, uMkhanyakude, King Cetshwayo and Ugu to strengthen coordinated response efforts.
The South African Weather Service (Saws) has warned that rainfall exceeding 80mm was expected in parts of the north-eastern and south-eastern regions of the province.
This raises the risk of flash flooding, damaging winds, hail, lightning strikes and infrastructure damage.
A Level 4 severe thunderstorm warning remains in place for the rest of the province, including eThekwini and the Midlands.
"Residents in low-lying areas and near rivers should remain alert and avoid crossing swollen streams or fast-flowing water."
Buthelezi said authorities have prioritised the protection of communities in low-lying settlements and areas near rivers and streams, while major transport routes such as the N2 and N3 are being closely monitored for flooding, debris and possible disruptions.
"The public is advised to stay indoors where possible, avoid sheltering under trees, stay away from metal objects during thunderstorms, and move to higher ground if threatened by floodwaters," he added.
The Provincial Joint Operations Centre will remain active for the duration of the weather system, which is expected to persist until Wednesday evening.