30 September 2020 Severe Weather Alerts: Disruptive Snow and Rain & Damaging Winds

The South African Weather Service has issued the following Impact Based Severe Weather Forecast:


Alert Level: Yellow (L2)

Affected Municipalities: Beaufort West, Breede Valley, Kannaland, Karoo Hoogland, Laingsburg, Langeberg, Oudtshoorn, Prince Albert and Witzenberg.

Valid From (SAST): 01/10/20 00h00

Valid To (SAST): 02/10/20 00h00

Discussion: Significant low freezing levels are expected over the interior of the Western Cape and southern parts of the Northern Cape for Thursday and Friday morning due to a passage of a cold front supported by an intense upper cut-off low pressure system. Snowfall is anticipated to cover the mountainous areas during the period. Cold wet and windy weather can be expected.

Impact: Loss of vulnerable crops and livestock, especially sheep that has already been sheered. Light snow leading to icy roads high up in mountains.

Instruction: Small stock farmers are encourage to shelter animals. Dress warmly and avoid high mountain passes if possible. Make contact with your closest disaster manager or community leader and keep listening to the Radio for updates. Bring livestock in and sheltered overnight.


Alert Level: Yellow (L1)

Affected Municipalities: Cape AgulhasCity of Cape town, George, Hessequa, Knysna, Mossel Bay, Overstrand, Saldanha Bay, Swartland and Table Bay.

Valid From (SAST): 30/09/20 20h00

Valid To (SAST): 02/10/20 00h00

Discussion: A deep high pressure system (center 1037hPa) accompanied by an intense upper cut-off low pressure system in the upper levels will result in strong southerly to southeasterly winds over the Northern and Western Cape provinces, including the coastal areas from late Wednesday through to early Friday morning. Swell heights are expected to reach 4 to 6m on Thursday along the entire coastlines easing off from early Friday morning. The area of concern is between Cape Columbine and Plettenberg Bay due to the southerly component of both the wind and waves.

Impact: Difficulty in navigation is likely. Small vessels are at risk of taking on water and capsizing. Localized disruptions to beachfront activities and danger to rock anglers can be expected.

Instruction: Be aware of large unpredictable waves along the coast. Small vessels are advised to seek shelter in harbours, bays or inlets. Be aware of strong rip currents especially during periods around spring tide (30 Sep 2020 – 04 October 2020).


Alert Level: Yellow (L2)

Affected Municipalities: Beaufort West, Bitou, Cape Agulhas, George, Hessequa, Knysna, Laingsburg, Mossel Bay, Overstrand, Swellendam and Theewaterskloof.

Valid From (SAST): 01/10/20 00h00

Valid To (SAST): 02/10/20 00h00

Discussion: Significant rain is expected for the Overberg, southern parts of the Garden Route District and Central Karoo Districts from tomorrow Thursday morning into Friday. The accumulated rainfall is likely to reach between 35 to 45mm over the period due to the strong southerly winds aided by a cut-off low pressure system in the upper levels.

Impact: Localised flooding can be expected in susceptible formal and informal settlements and roads. Increased travel times and motor vehicle accidents may occur along with difficult driving conditions on dirt roads. Localised and short term disruption to essential services may also occur in places.

Instruction: If possible stay indoors and off the roads, avoid crossing rivers and swollen streams where water is above your ankles. If trapped in a vehicle during a flood, abandon it and climb to higher ground. In buildings, move valuables to a safe place above the expected flood level. Take caution driving on a roads covered by water. Listen to the radio or TV for warnings and obey the instructions from disaster management officers.

Report any severe weather related incidents to the Garden Route Disaster Management Centre at telephone number 044 805 5071.