securite: ========= weather bulletin for coastal waters up to 50 nautical miles seaward. Issued by the South African Weather Service on the 22nd September 2014 at 13:00 UTC.
Forecast valid from 222200 to 232200 utc:
Wind in knots, wave heights in metres. No sea state given if waves less than 2m.
Note the wind speeds quoted here are the expected average speeds. Individual gusts may exceed these values by a factor of up to 1.5. Wave heights are significant wave heights which may be accompanied by individual waves 1.5 to 2.0 times higher.
These estimates of winds and waves do not take into account the enhancing effects of the Agulhas Current off the South African East Coast.
Note: wx observations. ====================== Could all vessels experiencing unexpected, severe wx/sea state please make every effort to report this to saws via cape town radio.
Alerts: ------- warnings: --------- 1. Poor visibility in fog patches is expected between Cunene River and Alexander Bay, spreading to cape Columbine towards the end of the period, while moderate visibility in showers and thundershowers is expected between stilbaai and east London.
Watches: -------- nil.
Advisories: ----------- nil.
Abnormal wave conditions: ========================= nil.
Cunene River to Walvis Bay: wind : S to se 10 to 20. Vis : poor in fog patches. Sea state: 2.0m, S to SW swell.
Walvis Bay to Orange River: wind : NW 10 to 15 south of luderitz, otherwise S to se 05 to 10, spreading southwards by the end of the period. Vis : poor in fog patches. Sea state: 2.0m in the extreme south at first, S to SW swell.
Orange River to cape agulhas: wind : N to NW 10 to 20, reaching 30 south of Cape Point. Vis : good, becoming poor in fog north of cape Columbine towards the end of the period. Sea state: 2.0 to 2.5m, south of cape Columbine, SW to se swell.
Cape Agulhas to east london: wind : E to NE 10 to 20 east of Plettenberg Bay, otherwise W to SW 05 to 10, becoming light and variable in the west. Vis : good, becoming moderate in showers and thundershowers between stilbaai and east London. Sea state: 2.5 to 3.5m, SW swell, becoming E to se swell.
East London to Maputo: wind : N to NE 10 to 20, reaching 30. Vis : good. Sea state: 2.5 to 3.5m in the south, S to SW swell.
Mozambique channel: wind : S to se 10 to 20, reaching 30 in the south-east. Vis : good, but moderate in showers in the North-East. Sea state: 3.0 to 3.5m in the south, S to SW swell.