The following release was published by Maersk:
Kindly note that extreme weather conditions including strong winds, high waves and heavy rain are forecasted along the South African Coastline, over the next few days, especially between Cape Town and Port Elizabeth.
This will impact vessel movement and operations. The worst impact is expected in Port Elizabeth. Vessels are expected to seek shelter/alter their course to avoid the impacted areas, please expect delays over the next few days.
Source: Maersk