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securite:
=========
weather bulletin for coastal waters up to 50 nautical miles seaward.
Issued at 13:30 UTC by the South African Weather Service on the
28th of August 2008.
Forecast valid from 282200 to 292200 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.
Advisory:
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1. Gale force W to SW winds(35kt or 65 km/h) are expected between
Cape Point and Cape Agulhas on saturday(30th), spreading to east
London on sunday(31st) afternoon. It will moderate from the west on
Sunday.
2. Very rough to high seas in excess of 5m are expected between
Cape Point and Cape Agulhas by saturday(30th) night, spreading to
east London and northwards to Alexander Bay by sunday(31st)
afternoon.
Gale force warning(s):
======================
nil.
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 : S to SW 10 to 20.
Vis : poor in fog patches.
Sea state: 2 to 2.5m, SSW swell.
Walvis Bay to the Orange River:
wind : S to SW 10 to 15 but NW 10 to 20 in the south.
Vis : poor in fog patches.
Sea state: 2 to 2.5m, SSW swell.
Orange River to cape agulhas:
wind : NW 15 to 25, reaching 30 south of Cape Point.
Vis : good, becoming poor in rain between cape Columbine and
Cape Agulhas by Friday night.
Sea state: 3 to 4m but 4 to 5m south of Cape Point during the first
half of the period, WSW swell.
Cape Agulhas to east london:
wind : W to NW 15 to 25 but W to SW 15 to 25 in the east, where
it will become NE 15 to 25 by Friday evening.
Vis : good, becoming poor in rain in the extreme west by Friday
night.
Sea state: 3.5 to 4.5m, becoming 2.5 to 3.5m by Friday evening with
SW swell.
East London to Maputo:
wind : NE 20 to 30 in the north at first, otherwise S to SW 15
to 25, becoming NE 15 to 25 by Friday evening.
Vis : good.
Sea state: 2.5 to 3.5m, becoming 2 to 2.5m by Friday night with SSW
swell.
Mozambique channel:
wind : se to E 10 to 20 but N to NE 10 to 20 in the west.
Vis : good but moderate in showers in the North.
Sea state: 2.5m in the south, SSW swell.
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