Weather alert: Severe thunderstorms in NC and disruptive rainfall in KZN and MP

The South African Weather Service (Saws) has released its latest weather forecast for Tuesday, 15 April 2025.

The weather service warns of severe thunderstorms in the Northern Cape, disruptive rainfall leading to flooding in KwaZulu-Natal and disruptive rain leading to heavy downpours in Mpumalanga. Here’s what you need to know.

Weather warnings, Tuesday, 15 April

Impact-based warnings

The weather service has issued a yellow level 2 warning for severe thunderstorms leading to localised flooding of susceptible roads, low-lying areas or bridges as well as localised damage to settlements over the north-eastern parts of Northern Cape.

A yellow level 4 warning has been issued for disruptive rainfall resulting in flooding of roads and settlements (formal and informal) over most parts of KwaZulu-Natal except in the north-east. Major disruption of traffic flow due to major roads being flooded or closed is expected.

A yellow level 2 warning has also been issued for disruptive rain resulting in heavy downpours which will lead to flooding of susceptible areas, roads and bridges, localised damage to properties and temporal disruptions of municipal services over the southern parts of Mpumalanga.

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Provincial weather forecast

Here’s what to expect in your province on Tuesday, 15 April:

Gauteng:

Residents of Gauteng can expect partly cloudy and cool to warm weather with isolated afternoon showers and thundershowers.

The region’s expected UVB sunburn index is “very high”.

Residents should take the necessary precautions against prolonged sun exposure.

Mpumalanga:

Mpumalanga residents will experience cloudy and cool to warm conditions with isolated showers and thundershowers but scattered in the south.

Limpopo:

The day will start off fine in the Western Bushveld in the morning, otherwise it will be partly cloudy and warm to hot.

North West:

Morning fog patches await North West residents in places, otherwise it will be partly cloudy to cloudy and cool to warm, with isolated to scattered showers except over the north-eastern parts. It will be windy over the western parts.

Free State:

Residents of the Free State will experience morning fog patches in places, otherwise it will be partly cloudy and cool, with scattered showers and thundershowers, but isolated over the south-western parts.

Northern Cape:

The day will be fine the west, otherwise partly cloudy, windy and cool to warm with isolated to scattered showers and thundershowers over the central and the eastern parts.

Western Cape:

Western Cape residents can expect partly cloudy and cool to warm weather, but fine in the western parts. It will clear in the central parts in the evening.

The region’s expected UVB sunburn index is “high”.

Residents should take the necessary precautions against prolonged sun exposure.

Eastern Cape (western half):

Morning fog awaits Eastern Cape residents in places in the south, otherwise it will be fine and cool, but partly cloudy to cloudy with light evening rain in places along the coast and adjacent interior.

Eastern Cape (eastern half):

The day will start with morning fog in places along the escarpment, otherwise it will be partly cloudy and cool with isolated showers and thundershowers, but scattered in the east where it will be cloudy and cold.

KwaZulu-Natal:

Residents of KwaZulu-Natal can expect morning fog in places over the interior, otherwise it will be cloudy and cold to cool but warm in the extreme north-east, with widespread showers and thundershowers but scattered in the north-east.