The South African Weather Service (SAWS) warns that the low-pressure system may cause cold, wet, and windy conditions, severe thunderstorms, and possible snow in various regions of South Africa this week.
A sharp change in weather is expected across South Africa as the low-pressure system begins to form over the western inland areas on Thursday, September 3rd, and then moves eastward across the country over the weekend.
Western and Northern Cape to feel the impact first
Cold, wet, and windy conditions are expected in the Western and Northern Cape from Thursday to Friday. SAWS has warned that temperatures in mountainous areas could drop significantly, with maximums in some places remaining below 10°C.
In parts of the Western Cape, rainfall may cause problems, including the possibility of localized flooding, especially in the southeastern districts of the province. The meteorological service issued a Level 4 yellow warning for destructive rainfall for the Overberg and Garden Route districts on Thursday, which will lead to flooded roads and settlements, as well as serious travel disruptions.
A separate Level 4 yellow warning was issued for destructive winds in the Namaqua of the Northern Cape, as well as in parts of the Cape Winelands, Central Karoo, and Little Karoo from Thursday afternoon until Friday. SAWS reported that strong or destructive winds are possible inland, and storm winds may affect the southwestern and southern coastal areas.
Severe thunderstorms possible in Gauteng and North West
As the system moves eastward, temperatures in the central and eastern inland areas are expected to drop, accompanied by scattered or widespread rain and thunderstorms. Windy conditions are possible in the Free State, Gauteng, Eastern Cape, KwaZulu-Natal, and eastern parts of the North West from Friday to Sunday.
SAWS forecasts a severe thunderstorm warning in parts of the Free State, North West, and Gauteng from Friday afternoon until Saturday evening. The risk is expected to shift eastward on Sunday, potentially affecting parts of Mpumalanga and KwaZulu-Natal, and possibly extending to southern Limpopo. In the event of severe thunderstorms, the meteorological service warned of the possibility of heavy downpours, strong winds, excessive lightning, and hail.
SAWS noted that these conditions should persist from Friday to Sunday, with potential further impact as the system moves across the country.
Snow possible in Eastern Cape and Lesotho
Cold conditions may also lead to snowfall in mountainous areas. SAWS reported that snow is possible in the Drakensberg mountains of the Eastern Cape on Friday morning, and the system may extend to the high-altitude areas of Lesotho. Drivers using mountain routes and passes are strongly advised to exercise caution due to the risk of rapidly deteriorating conditions, reduced visibility, and hazardous road conditions.
Coastal areas to face destructive waves
Coastal areas should also expect dangerous conditions as the system develops. A Level 4 yellow warning for destructive winds and waves has been issued between Alexander Bay and Plettenberg Bay from Thursday to Friday. The meteorological service warned that waves could reach approximately 4.5–5.5 meters in some places, posing a threat to navigation, ports, and harbors.
Public urged to prepare
SAWS has called on the public to monitor official forecasts and warnings as the system develops, especially in areas at risk of flooding, strong winds, thunderstorms, and cold conditions. Citizens have been advised to avoid crossing flooded roads, bridges, and streams, secure unsecured items outdoors, and avoid sheltering under isolated trees or near metal structures during a thunderstorm.
Small farmers have also received an urgent request to ensure adequate shelter for livestock, especially in areas where very cold, wet, and windy conditions are expected. SAWS advised the public to 'remain vigilant regarding updated weather forecasts, consultations, and warnings' while the movement and intensity of the system become clearer.
