What happened to the huge waves in South Africa blown into foam by strong winds?

It is reported that Cape Town has recently encountered strong winds and other weather. On July 13, Cape Town, South Africa, accompanied by huge waves and strong winds, spectacular "wave bubbles" appeared on the coastline.

The video shows that some cars are tightly wrapped in foam, and pedestrians stop to watch and take pictures. On July 12, a continuous cold front hit the local area, accompanied by heavy rain and flood. The wind speed is as high as 100 km per hour and the wave height is as high as 10 m.

Extended data:

Wave level:

Grade 0: there is no wave at 0 meters, and the sea surface is as smooth as a mirror or only swells exist;

1 grade: micro wave 0-0. 1 m, ripple or surge and ripple exist at the same time;

Grade 2: Xiaolangdi 0. 1-0.5m, the wave crest begins to break, and the spray is glassy rather than white;

Level 3: the light wave is 0.5- 1.25m, the wave is not big, but it is very eye-catching, the peak is broken, and some places form white waves-white waves;

Grade 4: medium wave 1.25-2.50m, with obvious shape and white waves everywhere;

Grade 5: the wave height is 2.50-4.0m, the wave peak is high, and the waves on the wave peak occupy a large area, and the wind begins to cut off the waves on the wave peak;

Grade 6: the wave height is 4-6 meters, and the waves cut off by the wind on the wave crest begin to extend into strips along the wave slope, and sometimes the wave crest shows the long wave shape of storm waves;

Grade 7: wild waves are 6-9 meters, and the wave bands cut by the wind are covered with wave slopes, and some places reach wave troughs, and the peaks are covered with wave layers;

Grade 8: wild waves 9- 14 meters, dense waves are covered with wave slopes, and the sea surface turns white, but there are no waves in some parts of the trough;

Grade 9: wild waves 14-20m. The whole sea surface is covered with dense spray layers, and the air is full of water droplets and water droplets, which significantly reduces visibility.

China Net-South African waves are blown into bubbles by strong winds!