SECURITE
AOR-E
WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII WEST OF 20 EAST.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE 12th OF AUGUST 2024 AT 08:30 UTC.
FOR SOUTH-EAST SECTOR OF METAREA. VII, PREPARED BY REUNION, SEE AREA 2 BELOW.
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.
AREA 1:
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FORECAST VALID FROM 121000 TO 131000 UTC:
WIND IN KNOTS, WAVE HEIGHTS IN METERS. NO SEA STATE GIVEN IF WAVES LESS THAN 3M.
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.
GALE FORCE WARNINGS:
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1. TRISTAN: NW 35 to 40 in the east during the first half of the period,
but SW 35 to 40 over the central parts at first, spreading to
the east until mid-period.
2. CAPE WEST: NW to W 35 to 40. It will become S to SW 35 in the
south-west from mid-period.
SYNOPTIC CHART 06:00Z
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High 30s10e 1024 hPa
AREA FORECAST:
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ASCENSION (06S/15S, 00E/20W):
WIND : E to SE 10 to 20.
VIS : Good.
ANGOLA (06S/15S, 00E/00N):
WIND : SE 10 to 20, but S to SW 10 to 15 in the extreme east.
VIS : Good.
ST HELENA (15S/30S, 00E/20W):
WIND : SW 10 to 20 in the south-west at first, otherwise SE to E 15
to 25 but NW 15 to 25 in the south-east.
VIS : Moderate in showers in the south-west, otherwise good.
SEA STATE: 3.0 to 4.0m in the south, SW swell.
TRADES (15S/30S, 00E/WEST COAST):
WIND : SE to S 15 to 25 but anticyclonic 10 to 15 in the extreme
south-west, where it will become NW 10 to 20 towards the end
of the period.
VIS : Good.
TRISTAN (30S/40S, 00E/20W):
WIND : NW 25 to 35 in the east during the first half of the period,
reaching 40 but SW 25 to 35 over the central parts at first,
reaching 40, spreading to the east until mid-period, otherwise
anti-cyclonic 05 to 15.
VIS : Moderate to poor in showers and rain.
SEA STATE: 4.0 to 6.0m reaching 6.5 to 7.5m in the west spreading to the
central by mid-period, W to SW swell.
CAPE WEST (30S/40S, 00E/20E):
WIND : SE to S 05 to 15 in the north-east, otherwise NW to W 15 to 25
reaching 35 to 40. It will become S to SW 25 to 35 in the
south-west from mid-period.
VIS : Moderate to poor in showers in the west and south, otherwise
Good, but very poor in fog in the extreme east in the first
