Navigational warning issued
04 August 2020 | Infrastructure
Swell surges are surface gravity waves and not the normal wind waves. They are similar to flash floods and can cause damage to boats especially when the mooring ropes snap while vessels are alongside.
As the wind blows across the water’s surface, friction occurs and energy is transferred from wind to water. The result is a rising crest that forms a wave. Over time and distance, sustained wind strength and duration, build up a large amount of energy beneath the ocean’s surface, forming deeper waves known as swells.
Kaufuna emphasised that as per port regulation no. 51 (1), the master of a vessel within the area under the jurisdiction of the Namibian Port Authority is responsible for the safety of such vessel, and nothing in these regulations shall be construed as relieving the master of such responsibility.
“A vessel within the confines of the commercial port should thus have sufficient staff on board to attend to the vessel’s moorings, gangways and other shore connections at all times,” he said.
Kaufuna also introduced some measures to be enforced for the safety of vessels and crew. These include that port control should be informed immediately on VHF Ch 16/12 or via 064 208 2264/2265 when a vessel is experiencing surge. In addition, port control will broadcast a local navigational warning when there is bad weather expected and all Masters should have the latest weather forecast available in the bridge.