What to do now: Avoid flooded roads, follow local traffic diversions and keep clear of downed trees and power lines. If you encounter deep or fast-moving water, turn around and find an alternative route; do not attempt to drive through it.
Flooding and road closures in Johannesburg
Severe afternoon thunderstorms on 6 September produced sudden flooding in parts of Johannesburg, forcing multiple road closures and leaving vehicles stranded. At the intersection of Siemert Road and Currie Street in Doornfontein several cars became trapped in rising water, Daily Maverick reported.
The Johannesburg Metropolitan Police Service deployed officers to manage traffic and assist motorists. A police spokesperson urged drivers to avoid flooded sections and to obey diversion instructions. City teams also warned that wet and slippery conditions, coupled with higher water levels, posed an ongoing risk to commuters.
"Officers were directing traffic, assisting stranded drivers, and diverting vehicles around the flooded section," said Johannesburg Metropolitan Police spokesperson Xolani Fihla.
Emergency services on alert
City emergency services confirmed that specialised water-rescue units and disaster monitoring teams in Gauteng were placed on heightened alert as the storm system moved through. Roads reported closed in several suburbs, including Cooper and Beryl streets in Cyrildene, Beatrice and Princess avenues in Windsor, and Smith Street and 11th Avenue near M1 access points.
- Follow police and traffic officers’ directions at closures and diversions.
- Keep a safe distance from swollen drains, bridges and embankments.
- Report trapped or stranded people to emergency services rather than attempting rescues yourself.
Damage outside Gauteng
The same weather system produced damaging winds and heavy rain in other provinces. In the North West, communities more than 70 km from Mahikeng suffered structural damage after strong gusts tore roofs from homes and exposed interiors to rain. Local authorities reported that a training centre and two primary schools were also affected. Eskom documented power outages in parts of the province linked to the storm.
In the Sol Plaatje municipal area of the Northern Cape, residents likewise reported roofs being blown off and properties harmed by heavy rainfall.
"A training centre and two primary schools were also damaged," said local government spokesperson Lerato Gambu.
Meteorological cause and warnings
Meteorologists attribute the severe conditions to an intense cut-off low-pressure system that drew tropical moisture over the country. That setup increases the likelihood of sudden, intense downpours, localized flash floods, strong gusts and hail, together with frequent lightning.
At the time of reporting, thunderstorm warnings were in effect for several provinces, including Gauteng, KwaZulu-Natal, Free State, Mpumalanga, Limpopo and the North West. Residents in affected areas should expect rapidly changing conditions and prepare for possible short-term disruptions.
Practical safety and preparedness tips
To reduce risk during this period of severe weather:
- Check weather warnings from SAWS and local authorities before travel.
- Keep a battery-powered torch and a charged phone in case of power failures.
- Secure loose outdoor objects and ensure gutters and drains are clear where you can safely do so.
- If your roof is damaged, avoid standing water inside the home and report faults to your municipality or landlord.
| Area | Reported impacts |
|---|---|
| Doornfontein, Johannesburg | Vehicles trapped, road closures, traffic diversions |
| North West (near Mahikeng) | Roofs torn off homes; damage to training centre and two primary schools; power outages |
| Sol Plaatje (Northern Cape) | Roof damage and property flooding |
Authorities continue to monitor conditions and will adjust warnings as the system evolves. Keep tuned to SAWS updates and local emergency services for the latest advisories.
If you are in a flood-prone area: move to higher ground if water levels rise inside your home, avoid contact with floodwater where possible, and do not use electrical appliances until a qualified electrician has checked your wiring after flooding.
