Dangerous Weather System Threatens SA With Flooding and Heavy Snow From Thursday

• Vox Weather warns that a powerful upper-air weather system is set to bring heavy rain and flash flooding to parts of South Africa from Thursday
• Rainfall totals of 30 to 50 mm are expected within 24 hours, with the Wild Coast facing over 100 mm in 48 hours, while snowfall above 40 cm is forecast for high-terrain areas
• The warning comes shortly after Durban experienced heavy flooding and hail, leaving many South Africans rattled about what is still to come

A dangerous weather system is closing in on South Africa, with forecasters warning of heavy rain, flash flooding, and significant snowfall expected to hit several provinces from Thursday, 17 September 2026. The Vox Weather Facebook account issued the alert, flagging a severe system driven by a strong upper-air trough interacting with high-pressure conditions.

The Eastern Cape, KwaZulu-Natal, Lesotho, and the Free State are all in its path. Rainfall totals of 30 to 50 mm in 24 hours are forecast across affected areas. The Wild Coast faces the most severe risk, with accumulations potentially exceeding 100 mm over 48 hours as the system deepens into a cut-off low over Namibia. Forecasters warn of overflowing rivers, flash flooding, and hazardous conditions in low-lying zones.

Read also

Durban skies turn pitch black as powerful storm leaves Mzansi stunned

Snow and ice to hit the Drakensberg

While rain threatens the coast and lowlands, mountainous areas face a different danger. Heavy snowfall of more than 40 cm is forecast for the high terrain of Eastern Lesotho and the Southern Drakensberg.

High-altitude routes could face serious disruption, with travel in those areas expected to become treacherous. Residents and drivers are urged to stay off flooded roads, monitor official weather updates, and remain alert as conditions develop.

Durban already hit hard

The warning comes shortly after Durban took a battering. Residents and online commenters note that heavy flooding and hail have struck the city, a combination described as highly unusual.

See the Vox Weather Facebook post that sparked the concern below:

South Africans react to the forecast

South Africans had plenty to say in the comments:

@Suresh Thulsi wrote:

"Metro, make yourself visible in advance."

@Wietz Van Lelyveld commented:

"Weather tampering at its best."

Read also

Cold snap grips South Africa with rain, snow and thunderstorms from mid-September

@Xolela Simo November added:

"Eish, this climate change is the real deal."

@Marcus K Moloisane noted:

"Yesterday in Durban there was heavy flooding accompanied by hail, which is a very rare occurrence."

@Paul Kirsch wrote:

"Thanks for the weather update, Team Vox 👍 🇿🇦."

@Jeremy Perumal said:

"I'm ready and waiting to see if this gets to April 2022 level. I expect approximately 100–140 mm."

3 Briefly News weather-related articles

• KwaZulu-Natal disaster management authorities activated emergency response units after the South African Weather Service issued severe weather warnings for thunderstorms, damaging winds, and localised flooding.
• Moments before a deadly flash flood wiped out their school, a heroic headteacher in Nepal made a split-second decision to evacuate nearly 900 pupils to safety.
• Gale-force winds in Cape Town made national headlines after blowing pedestrians off their feet and creating hazardous conditions across the city streets.

Source: Briefly News