Heavy rainfall has caused widespread flooding across north-eastern South Africa and neighboring Mozambique for several days. Locations in South Africa, such as Graskop in Mpumalanga, have recorded significant rainfall totals, with 113mm falling in a 24-hour period. Phalaborwa recorded approximately 85mm of rainfall during the same period, and the rain continues.
Deluge Driven by Persistent Weather System
The flooding is the result of a slow-moving cut-off low pressure system that has remained over the region, consistently drawing in moisture. Further heavy rainfall is anticipated on Friday and throughout the weekend. Maputo, the capital of Mozambique, could see daily rainfall exceeding 200mm by the end of Friday. Western South Africa and north-western Eswatini may experience over 100mm of rainfall.
The already saturated ground, following an unusually wet December, is exacerbating the situation, overwhelming river systems. The South African weather service has issued its highest level flood warning. Roads have been washed away, and infrastructure has been damaged, rendering large areas inaccessible.
Since October 2025, parts of Limpopo and Mpumalanga have received roughly twice their average annual rainfall. This prolonged wet weather is disrupting the harvesting and export of mangoes and lemons, potentially impacting supply chains. Authorities have also warned of displaced wildlife, including crocodiles and hippos, sighted near residential areas. Emergency services have been responding to rescue residents trapped by rising rivers.
North America Experiences Anomalous Warmth
While southern Africa faces flooding, North America is experiencing a different extreme: record warmth. Temperatures across much of the US and parts of Canada are 10-15C warmer than usual for January. In Alberta, Canada, temperatures have exceeded 15C, resembling late spring conditions.
Many locations across North America have broken January temperature records. Unusually high temperatures are expected to continue in the western half of the continent, while an arctic plunge is forecast to bring below-normal temperatures to the eastern half.
Frequently Asked Questions
What is driving the heavy rainfall in South Africa and Mozambique?
The heavy rainfall is being driven by a slow-moving cut-off low pressure system that is drawing in moisture and triggering intense downpours.
How is the flooding impacting the region?
The flooding has led to widespread damage, including washed-away roads, damaged infrastructure, and the closure of Kruger National Park. It is also disrupting agricultural exports and displacing wildlife.
What is the temperature situation in North America?
Much of North America is experiencing record warmth, with temperatures 10-15C above normal. However, an arctic plunge is expected to bring colder temperatures to the eastern half of the continent.
How will these extreme weather patterns impact global supply chains and food security in the coming months?
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