19 April 2021 Weather Alert: Impact Based Weather Warnings for Western Cape and Namaqua
Weather Alert: Impact Based Weather Warnings for Western Cape and Namaqua – 19 April 2021
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) |
| Damaging Winds | Yellow(L1) | City of Cape Town, M_Cape Agulhas, M_Cape Agulhas, M_City of Cape town, M_Hessequa, M_Overstrand, M_Saldanha Bay, M_Swartland, M_Table Bay | 19/04/21 05h00 | 20/04/21 23h00 |
Discussion: A high-pressure system south-west of the country will result in strong, south-easterly winds along the south-west coast of the Western Cape, and in places over Cape Metropole. Wind speed will be between 40 to 65km/h, with gusts reaching 75km/h. The wind are expected to moderate north of Slangkop on Tuesday morning. Along with the strong winds, wave heights of 4.5m between Cape Point and Cape Agulhas are expected resulting in very rough and choppy seas.
Impact: Considering warm, dry and windy conditions there is risk of additional fires are possible along with the further spreading of the Devils Peak fire. Furthermore, some transport routes, as well as high-sided vehicles, might be affected and/or blown over due to crosswinds. Some localised structural damage is also possible. For the coastal waters, difficulty in navigation of small vessels and personal water crafts such as kayaks are likely. There is also a risk for these small vessels to take on water and capsize in totality.
Instruction: Be aware of the following: – sudden crosswinds if travelling especially between buildings, fallen trees or power lines and debris on roads. Ensure that all temporary structures are well anchored and refrain from starting uncontrolled fires.
Report any weather related incidents to the Garden Route Disaster Management Centre at:
044 805 5071.
SOUTH AFRICAN WEATHER SERVICE
Cape Town Weather Office
2nd Floor: Oval Office Park
Cape Town Int airport
Freight Road
Matroosfontein
Cape Town