One province, two weather extremes: Why is this happening?

KwaZulu-Natal is facing two contrasting weather conditions, with severe thunderstorms threatening southern parts of the province while a heatwave brings persistently high temperatures to the north-west.

The South African Weather Service (SAWS) has issued a Yellow Level 2 warning for severe thunderstorms in southern KwaZulu-Natal.

It has also issued a heatwave advisory for north-western parts of the province.

Why is KwaZulu-Natal experiencing two weather extremes?

Weather conditions do not always follow the same pattern across an entire province.

Intense heat can affect one area, while heavy rain, lightning, hail and damaging winds threaten another.

There are several factors that can influence these differences, including geography, altitude, wind direction, moisture and atmospheric pressure.

KwaZulu-Natal has a varied landscape, stretching from the warm Indian Ocean coastline to inland valleys and mountainous regions.

These geographical differences influence how the air heats up, how moisture moves and where thunderstorms develop.

What causes severe thunderstorms?

Thunderstorms develop when warm, moist air rises into an unstable atmosphere.

As the air rises, it cools and water vapour condenses to form clouds.

Under favourable conditions, these clouds can grow into towering thunderclouds that produce heavy rain, lightning, hail and strong winds.

Why are other areas experiencing a heatwave?

A heatwave occurs when unusually high temperatures persist over several days.

Certain weather patterns can allow heat to build up over an area, particularly when skies remain relatively clear and warm air continues to move into the region.

Inland valleys can also experience particularly high temperatures because of their location and surrounding terrain.

However, the presence of a heatwave in one part of the province does not mean every district will experience the same temperatures.

What should residents look out for amid two weather extremes?

Residents in southern KwaZulu-Natal should remain alert to severe thunderstorms, which can bring heavy downpours, damaging winds, hail and lightning.

As these conditions can cause localised flooding and damage to infrastructure and settlements.

Meanwhile, people in north-western KwaZulu-Natal should take precautions against prolonged heat.

Also keep checking the latest SAWS warnings and advisories to know which conditions will affect your area.