AOR-E
WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII WEST OF 20E.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE 27th OF AUGUST 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 271000 TO 281000 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: NE to N 35 to 40 in the south-west from mid-period.
2. CAPE WEST: W to SW 35 to 45 over the central and southern parts.
SYNOPTIC CHART 06:00Z
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High 1036 hPa 44s17w High 1040 hPa 35s63e.
Low 984 hPa 41s20e.
1. Cold Front: 33s17e 35s20e 37s23e 40s26e 34s24e into 41s20e.
AREA FORECAST:
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ASCENSION (06S/15S, 00E/20W):
WIND : E to SE 15 to 25.
VIS : Good.
ANGOLA (06S/15S, 00E/00N):
WIND : S to SE 10 to 20 reaching 25 in the south from mid-period.
VIS : Good.
SEA STATE: 3.0 to 3.5m in the south from mid-period, with S swell.
ST HELENA (15S/30S, 00E/20W):
WIND : NE 10 to 15 in the south-west reaching 20 to 25 in the extreme
south-west from mid-period, otherwise E to SE 15 to 25.
VIS : Good, becoming moderate in showers and rain in the south-west
from mid-period.
SEA STATE: 3.0 to 3.5m in the extreme south-east from mid-period reaching
3.5m from mid-period, with SW swell.
TRADES (15S/30S, 00E/WEST COAST):
WIND : S to SE 15 to 25 reaching 30 in the north-east from mid-
period, but S to SW 10 to 20 in the extreme south for the
first half of the period.
VIS : Good.
SEA STATE: 3.0 to 4.0m in the south spreading northwards and reaching the
north by mid-period while reaching 4.5 to 5.5m in the south-
east from mid-period, with SW to S swell, but SE in the north
towards the end of the period.
TRISTAN (30S/40S, 00E/20W):
WIND : S to SW 15 to 25 in the east reaching 30 in the south-east at
first, otherwise NE to N 20 to 30 reaching 35 to 40 in the
south-west from mid-period, while becoming anticyclonic 05 to
10 in the south-east.
VIS : Good but poor in showers and rain in the south-west at first,
but in the west from mid-period.
SEA STATE: 3.0 to 4.0m, except in the north-west for the first half of
the period, but 5.0 to 6.0m in the south-east until mid-period
reaching 7.0 to 8.0m in the extreme south-east at first, with
S to SW swell. It will become 5.0 to 6.0m in the south-west
from mid-period, with N to NE swell.
CAPE WEST (30S/40S, 00E/20E):
WIND : W to SW 20 to 30 reaching 35 to 45 over the central and
southern parts moderating 15 to 25 from the west from mid-
period.
VIS : Good in the extreme north-west, otherwise poor in rain and
showers, becoming good in the west from mid-period.
SEA STATE: 3.5 to 4.5m in the north at first, otherwise 5.5 to 6.5m
reaching 7.0 to 9.0m over the central and southern parts. It
will subside in the west to 4.0 to 5.0m from mid-period, with
SW swell.
ENDS
THIS IS CAPE TOWN RADIO
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