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Thunderstorms, snow, disruptive rain, and temperatures to drop from Sunday

28 September 2024 [updated 29 September]
By Staff Writer


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ALSO READ: Heavy disruptive snowfall possible for the Western Cape – passes may be closed.

An intense cold front is expected to affect the Western Cape and southern parts of the Northern Cape from Saturday night until Monday, spreading to the interior of the Eastern Cape by Monday.

The public and small stock farmers are advised that cold to very cold temperatures and windy conditions can be expected with light snowfall over the high-lying areas on Sunday and Monday while strong to gale force winds and high seas can be expected along the south coast of the Western Cape and the coast of the Eastern Cape on Sunday.

Extremely hot, humid and uncomfortable conditions are expected in the Lowveld of Limpopo and Mpumalanga as well as the Limpopo Valley on Sunday.

Warnings from the SA Weather Service (SAWS):

Disruptive snowfalls are expected over the Cape Winelands, Cederberg, Stellenbosch, Paarl, Central and Little Karoo mountains of the Western Cape as well as the southern high ground of Namakwa District on Monday, according to the South Africa Weather Service (SAWS), who issued an orange level 5 and a yellow level 4 warning on Sunday (see below).

The closure of the following mountain passes are likely: Swartberg, Franschhoek, Hex River, Ouberg and Katbakkies. Snowfall accumulation of between 5-10 cm is expected, with possible low-level or ground snowfall especially over southern high ground of the Northern Cape and the Cape Winelands and Central Karoo municipalities.

A. Orange level 5 warning for damaging waves with heights of 5-6m resulting to a risk of medium to large vessels dragging anchors and breaking mooring lines due to rough sea conditions are expected between Cape Agulhas and Plettenberg Bay.

B. Yellow level 4 warning for damaging winds and waves resulting in medium vessels at risk of capsizing or taking on water, dragging anchors or breaking mooring lines, and damage to cargo impacting the marine section between Plettenberg Bay and East London continuing into Monday.

C. Yellow level 2 warning for disruptive rain leading to localised flooding of roads and settlements is expected over the Cape Winelands and City of Cape Town.

D. Yellow level 2 warning for severe thunderstorms resulting in damaging winds, excessive lightning and heavy downpours are expected over the midlands and northern interior of KwaZulu Natal as well as the southern Highveld of Mpumalanga.

Yellow level 2 warning for severe thunderstorms extreme north-eastern areas of Free State, as per the map below.

Extremely high fire danger conditions are expected over Limpopo, except in the extreme south-west as well as over north-eastern parts of Mpumalanga.

Regional forecasts from SAWS for Sunday:

1. GAUTENG
Partly cloudy, windy and warm with isolated showers and thundershowers, but hot in the north. The expected UVB sunburn index: High

2. MPUMALANGA
Partly cloudy and warm to hot with isolated showers and thundershowers but scattered over the southern Highveld. It will be very hot in the Lowveld.

3. LIMPOPO
Partly cloudy and hot to very hot with isolated showers and thundershowers.

4. NORTH-WEST PROVINCE
Fine in the west, otherwise partly cloudy and warm to hot, with isolated showers and thundershowers in the east.

5. FREE STATE
Partly cloudy and cool to warm, with isolated showers and thundershowers in the east.

6. EASTERN PARTS OF THE NORTHERN CAPE
Cloudy with light rain in the morning, otherwise partly cloudy, windy and cold to cool, but very cold over the southern parts. The wind along the coast will be Moderate to fresh south to south-westerly.

7. WESTERN CAPE
Cloudy, windy and cold with isolated showers and rain, but scattered over the south-western parts. Light snowfall is also expected over the Cape Winelands mountains from the evening. The wind along the coast will be fresh to strong west to south-westerly, while reaching near-gale to gale force south of Cape Point. The expected UVB sunburn index: Moderate

8. WESTERN HALF OF THE EASTERN CAPE
Partly cloudy in the north, otherwise cloudy and cool with isolated showers and rain south-west but scattered along the coast west of Port Elizabeth. The wind along the coast will be strong to gale force south-westerly.

9. EASTERN HALF OF THE EASTERN CAPE
Partly cloudy in north, otherwise cloudy and cool with isolated showers and rain in places south of escarpment. The wind along the coast will be strong to gale force south-westerly.

10. KWAZULU-NATAL
Fine and cool to warm, but hot in places in the extreme north. It will become cloudy in the afternoon with scattered showers and thundershowers, but isolated in the south-west. The wind along the coast will be moderate to fresh north-easterly north of Durban in the morning, otherwise fresh to strong south-westerly. The expected UVB sunburn index: High

Travellers forecasts from SAWS for Sunday:

PRETORIA
Partly cloudy and windy with isolated showers and thundershowers.
Minimum/Maximum: 18/34°C
The expected UVB Sunburn Index: High

JOHANNESBURG
Partly cloudy and windy with isolated showers and thundershowers.
Minimum/Maximum: 16/33°C

VEREENIGING
Partly cloudy and windy with isolated showers and thundershowers.
Minimum/Maximum: 14/32°C

MBOMBELA
Partly cloudy with isolated showers and thundershowers.
Minimum/Maximum: 18/36°C

POLOKWANE
Partly cloudy with light showers and rain.
Minimum/Maximum: 16/32°C

MAHIKENG
Partly cloudy.
Minimum/Maximum: 13/29°C

VRYBURG
Fine.
Minimum/Maximum: 9/25°C

BLOEMFONTEIN
Partly cloudy.
Minimum/Maximum: 6/19°C

KIMBERLEY
Partly cloudy.
Minimum/Maximum: 6/19°C

UPINGTON
Partly cloudy.
Minimum/Maximum: 8/19°C

CAPE TOWN
Cloudy with scattered showers and rain.
Wind: Moderate to fresh west to south-westerly.
Minimum/Maximum: 10/14°C
The expected UVB Sunburn Index: Moderate

GEORGE
Cloudy with isolated showers and rain.
Wind: Fresh to strong west to south-westerly.
Minimum/Maximum: 9/16°C

GQEBERHA
Cloudy with isolated showers and rain in the morning.
Wind: Strong to gale force westerly.
Minimum/Maximum: 11/19°C

EAST LONDON
Partly cloudy, becoming cloudy with isolated showers and rain.
Wind: Strong to gale force south-westerly.
Minimum/Maximum: 13/18°C

DURBAN
Partly cloudy, becoming cloudy in the afternoon with scattered showers and thundershowers.
Wind: Moderate to fresh southerly to south-westerly becoming strong at times.
Minimum/Maximum: 16/23°C
The expected UVB Sunburn Index: High

RICHARDS BAY
Partly cloudy, becoming cloudy in the afternoon with scattered showers and thundershowers.
Wind: Moderate to fresh north-easterly, becoming southerly to south-westerly from late morning.
Minimum/Maximum: 18/25°C

PIETERMARITZBURG
Cloudy with scattered showers and thundershowers.
Minimum/Maximum: 12/23°C

This forecast may change and updates issued more than once a day.


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