AOR-E
WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII. WEST OF 20E.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE 08th OF
AUGUST 2024 AT 08:30 UTC.
FOR SOUTH-EAST SECTOR OF METAREA. VII, PREPARED BY REUNION, SEE
AREA 2 BELOW.
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.
AREA 1:
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FORECAST VALID FROM 081000 TO 091000 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:
====================
1. TRISTAN: SW 35 to 45 in the south-east during the first half of the
period, and in the south-west towards the end of the period,
otherwise W to NW 35 to 45 in the extreme west spreading to
the central parts by mid-period and to the east towards the
end of the period.
2. CAPE WEST: N to NW 35 in the east during the first half of the
period and in the extreme west towards the end of the
period, otherwise W to SW 35 to 45, reaching 50 in places
in the south-west.
SYNOPTIC CHART 06:00Z
=====================
Low 42s02e 983 hPa
Low 47s15e 985 hPa
Low 39s10e 992 hPa
High 22s11w 1022 hPa
High 32s52e 1026 hPa
Cold Front 1: 27s01w, 33s07e 40s11e into 42s02e (983 hPa).
Cold Front 2: 42s18w, 45s14w, into 47s15e (985 hPa).
AREA FORECAST:
==============
ASCENSION (06S/15S, 00E/20W):
WIND : E to SE 10 to 20.
VIS : Good.
ANGOLA (06S/15S, 00E/00N):
WIND : S to SE 10 to 20, reaching 25 in the extreme south from mid-
period but S to SW 05 to 15 in the east.
VIS : Good.
SEA STATE: 3.0 to 3.5m in the south-east from mid-period, SW swell.
ST HELENA (15S/30S, 00E/20W):
WIND : E to SE 10 to 20 in the north, otherwise anti-cyclonic 05 to
15, reaching 20 to 25 in the extreme south-east at first but
NW 15 to 25 in the south-west, spreading to the south-east
towards the end of the period.
VIS : Good.
SEA STATE: 3.0 to 4.0m in the south, reaching 4.5 to 5.0m in the extreme
south-east, SW swell.
TRADES (15S/30S, 00E/WEST COAST):
WIND : S to SE 10 to 20, reaching 25 to 30 in the north-east but W to
NW 15 to 25 in the south during the first half of the period
reaching 30 in the extreme south, becoming SW 15 to 25 in the
south-west towards mid-period spreading eastwards. It will
become anti-cyclonic 05 to 15 in the south-west towards the
end of the period.
VIS : Good.
SEA STATE: 3.0 to 4.0m in the south reaching 4.5 to 5.0m in the
extreme south-west spreading northwards, SW swell.
TRISTAN (30S/40S, 00E/20W):
WIND : SW 20 to 30 in the east reaching 35 to 45 in the south-east
during the first half of the period, and in the south-west
towards the end of the period, otherwise W to NW 15 to 25,
reaching 35 to 45 in the extreme west spreading to the central
parts by mid-period and to the east towards the end of the
period.
VIS : Moderate in showers and rain in the east at first, and in the
west, spreading to the east by mid-period, otherwise good.
SEA STATE: 6.0 to 7.0m reaching 8.0 to 9.0m in the south-east at first,
otherwise 3.0 to 4.0m reaching 4.5 to 5.0m, SW swell.
CAPE WEST (30S/40S, 00E/20E):
WIND : N to NW 25 to 35 in the east during the first half of the
period and in the extreme west towards the end of the period,
otherwise W to SW 35 to 45, reaching 50 in places in the
south-west.
VIS : Moderate in showers and rain.
SEA STATE: 3.5 to 4.5m but 5.5 to 6.5m in the west, reaching 7.5 to 8.5m
in the south-west spreading to the central parts by mid-period
where it will reach 10.0 to 11.0m and to the south-east
tow
