AOR-E
WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII WEST OF 20E.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE 19TH OF SEPTEMBER 2024 AT 08:30 UTC.
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 191000 TO 201000 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. TRADES: S to SE 35 to 40 in the south-east.
2. TRISTAN: NE to N 35 in the south during the first half of the period.
3. CAPE WEST: S to SE 35 in the north-east by mid-period.
SYNOPTIC CHART 06:00Z
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High 1040 hPa 40s03e
AREA FORECAST:
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ASCENSION (06S/15S, 00E/20W):
WIND : SE to E 15 to 20.
VIS : Good.
ANGOLA (06S/15S, 00E/00N):
WIND : SW to W 05 to 10 in the east, otherwise S to SE 10 to 20.
VIS : Good.
ST HELENA (15S/30S, 00E/20W):
WIND : E to SE 15 to 25, but NE to N 05 to 15 in the south-west,
spreading to the south by mid-period.
VIS : Good, but moderate in showers and rain in places in the west
and central parts.
SEA STATE: 3.0m in the south-east, spreading to the east by mid-period,
with S swell.
TRADES (15S/30S, 00E/WEST COAST):
WIND : S to SE 20 to 30, reaching 35 to 40 in the south-east.
VIS : Good.
SEA STATE: 3.0 to 3.5m over the southern half, reaching 4.5 to 5.5m in
the south-east, with S to SE swell.
TRISTAN (30S/40S, 00E/20W):
WIND : W to NW 20 to 30 in the south-west, otherwise NE to N 15 to 25
reaching 30 to 35 in the south during the first half of the
period. It will become SW to S 15 to 25 in the west by mid-
period.
VIS : Good, but moderate to poor in showers and rain in the west,
spreading over the central parts by end of period.
SEA STATE: 3.5 to 4.5m in the west with NW to W swell, spreading over the
central parts by end of period, with W to SW swell.
CAPE WEST (30S/40S, 00E/20E):
WIND : SW 05 to 15 in the south-east, otherwise S to SE 15 to 25
reaching 30 to 35 in the north-east by mid-period, while
becoming N to NW 15 to 25 in the south-west.
VIS : Good, but moderate to poor in showers and rain in the south-
east during the first half of the period.
SEA STATE: 3.0 to 3.5m in the east and northern half, reaching 4.0 to
4.5m in the north-east, with SW to S swell.
ENDS DE CAPE TOWN RADIO/ZSC+
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