securite: ========= weather bulletin for coastal waters up to 50 nautical miles seaward. Issued by the South African Weather Service on the 21st may 2013 at 13:00 UTC.
Forecast valid from 212200 to 222200 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 Table Bay. 2. Poor visibility in showers and rain is expected between port Alfred and east London on Tuesday, spreading to St Lucia on Wednesday.
Watches: ------ nil.
Advisories: ----------- nil.
Abnormal wave conditions: ========================= nil.
Cunene River to Walvis Bay: wind : SW 05 to 10 in the extreme south by the first half of the period, otherwise S to se 15 to 25. Vis : good but poor in fog patches in the extreme south by the first half of the period.
Walvis Bay to Orange River: wind : NW to N 15 to 20, becoming S to se 05 to 15 by the end of the period. Vis : poor in fog patches.
Orange River to cape agulhas: wind : NE 15 to 25, south of Cape Point at first, otherwise N to NW 15 to 25. Vis : poor in fog patches. Sea state: 2.5m at first, mainly SW swell.
Cape Agulhas to east london: wind : W to SW 10 to 15 east of port Alfred at first, otherwise se to E 10 to 20. It will become W to SW 20 to 25 west of Cape St. Francis by the end of the period, otherwise NE 20 to 25. Vis : good but moderate to poor in showers and rain east of Plettenberg Bay by the first half of the period. Sea state: 2.5m by the first half of the period, mainly SW swell.
East London to Maputo: wind : NE to N 15 to 25, becoming W to SW 05 to 15 south of St. Lucia by the second half of the period. Vis : good becoming poor in showers and rain south of St. Lucia by the second half of the period. Sea state: 2.5m in the extreme south at first, SW swell.
Mozambique channel: wind : SW 05 to 15 in the extreme east at first, otherwise S to se 10 to 20. Vis : moderate in showers and thundershowers. Sea state: 2.5m in the extreme north, se swell.
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NOT FOR NAVIGATION. DO NOT RELY ON THIS DATA FOR DECISIONS THAT CAN RESULT IN HARM TO ANYONE OR ANYTHING.