Forecast valid from 121000 to 131000 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 evening and morning fog is expected in places between Cunene River and cape Columbine, as well as moderate in showers between Cape St. Francis and durban, spreading towards Maputo by the evening.
Watches: ------- nil.
Severe weather advisories: -------------------------- nil.
Abnormal wave conditions: ------------------------- nil.
Cunene River to Walvis Bay: wind : S to se 10 to 20. Vis : good, becoming poor in fog patches in places. Sea state: 2.0m in the south overnight, SW swell.
Walvis Bay to Orange River: wind : S to SW 10 to 20 at first, otherwise se 15 to 25. Vis : good, becoming poor in fog patches in places.
Orange River to cape agulhas: wind : N to NW 10 north of cape Columbine, otherwise S to se 15 to 20 reaching 25 between cape Columbine and hermanus this afternoon moderate overnight. Vis : good, but very poor in fog north of cape Columbine. Sea state: 2.0 to 2.5m, reaching 3.0m around Cape Point, mainly SW swell but se east of Cape Point.
Cape Agulhas to east london: wind : E to NE 10 to 20, but 25 to 30 between Plettenberg Bay and east London. Vis : good, but moderate in light rain east of Cape St. Francis. Sea state: 2.5 to 3.5m, with E swell.
East London to Maputo: wind : E to se 15 to 25, becoming NE 15 to 25 south of Margate in the afternoon, spreading to durban towards the end of the period. Vis : moderate to poor in showers and rain. Sea state: 2.0 to 3.0m, with S to se swell.
Mozambique channel: wind : N to NE 10 to 15 but S to se 15 to 25 in the extreme south. Vis : good, but moderate in showers and thundershowers in the south.