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securite:
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weather bulletin for coastal waters up to 50 nautical miles seaward.
Issued at 13:30 UTC by the South African Weather Service on the
20th November 2009.
Forecast valid from 202200 to 212200 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.
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Could all vessels experiencing unexpected, severe wx/sea state
please make every effort to report this to saws via cape town
radio.
Advisory:
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nil.
Gale warning(s):
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NE 35 from east London to durban in morning.
Warning of heavy seas:
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nil.
Abnormal wave conditions:
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nil.
Area forecast:
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Cunene River to Walvis Bay:
wind : SW to se 10 to 15.
Vis : poor in fog patches.
Walvis Bay to the Orange River:
wind : SW to se 10 to 15.
Vis : poor in fog patches.
Orange River to cape agulhas:
wind : W to SW 5 to 15 becoming S to se 10 to 20 north of cape Columbine later.
Vis : poor in fog patches at times.
Cape Agulhas to east london:
wind : NE to E 15 to 25 reaching NE 30 in east at first, otherwise W to SW
10 to 20 in the west spreading to east London by evening.
Vis : good.
State : 3.0 to 4.0m in east, with S swell.
East London to Maputo:
wind : E to NE 10 to 20 north of Richards Bay, otherwise NE 20 to 30 reaching NE 35 south of durban in morning.
Vis : poor in showers in north at first.
Sea state: 2.5 to 3.5m moderating in south, with mainly S swell.
Mozambique channel:
wind : se to E 10 to 20 reaching se 25 to 30 in the south but variable 5 to 10 in central and northern parts.
Vis : moderate in showers and thundershowers in places.
Sea state: 3.0 to 4.5m in the south, with SSW swell.
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