AOR-E
WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII WEST OF 20E.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE 20th OF JULY 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 201000 TO 211000 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. ST HELENA : NW to W 35 in the south-west spreading to the south-
central by mid-period, but SW 35 in the south-west in the
first half of the period.
2. TRISTAN: Cyclonic 35 in the north-central reaching 35 in the
first half of the period, otherwise N to NW 35 to 40 in the
south-west and in places in the east and become SW 35 to 40
in the south-west by the second half of the period.
SYNOPTIC CHART 06:00Z
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High 1028 hPa 33s15e
Low 1010 hPa 38s34e
Low 1006 hPa 32s10w
Cold Front 1: 43s42e 46s41e into 55s37e into 57s31e.
Cold Front 2: 40s26w 46s21w 55s26w into 56s31w.
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 : S to SE 10 to 20, but SW 05 to 10 in the extreme east.
VIS : Good.
ST HELENA (15S/30S, 00E/20W):
WIND : E to SE 10 to 20 in north, otherwise N to NW 15 to 25 reaching
30 to 35 in the south-west spreading to the south-central by
mid-period, but SW 15 to 25 in the west reaching 35 in the
south-west in the first half of the period.
VIS : Good, but moderate to poor in showers and rain in the south nd
west.
SEA STATE: 3.0m to 4.0m in the south-west spreading to the south-central
by mid-period, cyclonic swell.
TRADES (15S/30S, 00E/WEST COAST):
WIND : NE 10 to 20 in the south-west, otherwise S to SE 10 to 20
reaching 25 in the east.
VIS : Good.
SEA STATE: 3.0 to 3.5m in the central and east, SW swell.
TRISTAN (30S/40S, 00E/20W):
WIND : Cyclonic 25 to 30 in the north-central reaching 35 in the
first half of the period, otherwise N to NW 15 to 25 reaching
35 to 40 in the south-west and in places in the east. It will
become SW 20 to 30 in the south-west by the second half of the
period, reaching 35 to 40.
VIS : Good, but moderate in showers and rain in the west and west.
SEA STATE: 3.0 to 4.0m in the west and central reaching 5.0m in the west
by the second half of the period, SW swell, but cyclonic in
the central.
CAPE WEST (30S/40S, 00E/20E):
WIND : Anti-cyclonic 10 to 20,becoming N to NW 10 to 20 in the
south-west towards the end of the period.
VIS : Good but moderate in showers and rain in places at times.
SEA STATE: 3.0 to 4.0m in the east and central reaching 5.0 to 6.0m in
the south-east at first, SW swell.
ENDS THIS IS CAPE TOWN RADIO
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