3 December 2021 Impact Based Weather Warnings for Western Cape and Namaqua: Yellow level 2: Severe Thunderstorms
03 December 2021
Impact Based Weather Warnings for Western Cape and Namaqua: Yellow level 2: Severe Thunderstorms
Please find included the Impact Based Warning for the Western Cape and Namaqua Region of Northern Cape
Legal notice:
“This warning from SA Weather Service must be communicated as received and may not be altered under any circumstance.
It must be forwarded or communicated in its entirety and no portion hereof may be replicated or copied and distributed.”
| Hazard | Alert Level | Affected Municipalities | Valid From (SAST) | Valid To (SAST) |
| Severe Thunderstorms | Yellow(L2) (High likelihood of Minor Impacts) |
Beaufort West, Bitou, Breede Valley, Cape Agulhas, George, Hantam, Hessequa, Kannaland, Karoo Hoogland, Knysna, Laingsburg, Langeberg, Mossel Bay, Oudtshoorn, Overstrand, Prince Albert, Swellendam, Theewaterskloof, Witzenberg | 04/12/21 10h00 | 06/12/21 00h00 |
Discussion: Scattered to widespread thundershowers due to a cut-off low-pressure weather system are expected over the north and central parts of W. Cape (Cape Winelands, Central Karoo) and the southern Namakwa tomorrow Saturday (04/12/2021), and over south and eastern parts of W. Cape (Central Karoo, Garden Route, Langeberg and Overberg) on Sunday through to Monday (05-06/12/2021). Some of these storms may be severe, leading to periods of heavy downpours associated with rainfall accumulations of 20 to 35mm, lightning strikes, strong and gusty winds as well a large amount of small hail as they move through an area.
Impact: Localised flash flooding of susceptible roads, low-lying areas, and bridges due to heavy downpours may be expected. Large amount of small hail causing slippery roads may be expected. This can also contribute to vehicle accidents. Localised damage to infrastructure and settlements due to gusty wind as well as localised and short term disruption to essential services due to excessive lightning are also possible.
Instruction: Load Weather Smart APP, scroll to the last page and use two fingers to navigate the storm tracking application. If possible stay indoors away from metal objects. Do not seek shelter under trees or tall objects. Do not go fishing or play golf as both the golf clubs and fishing rods are good conductors of electricity. Be aware that any combination of hail, strong winds and/or heavy downpours can accompany the storms.
Please plan accordingly, keeping in mind the recent heavy rainfall experienced over most parts of the Garden Route with soaked soil, overflowing dams and already damaged infrastructure.
SOUTH AFRICAN WEATHER SERVICE
Cape Town Weather Office
2nd Floor: Oval Office Park
Cape Town Int airport
Freight Road
Matroosfontein
Cape Town