AOR-E
WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII: W OF 20E ISSUED BY THE
SOUTH AFRICAN WEATHER SERVICE ON THE 21st OF AUGUST 2024 AT 16:30 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:
=======
FORECAST VALID FROM 212200 TO 222200 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: N to NW 35 to 40 in the extreme east at first.
2. CAPE WEST: N to NW 35 to 40 in the south-western parts.
SYNOPTIC CHART 12:00Z
=====================
High 1032 hPa 38s09e High 1030 hPa 30s53e.
Low 996 hPa 40s29e Low 980 hPa 42s11w.
Cold Front 1: 33s27e 37s30e 39s32e into 40s29e.
Cold front 2: 26s35w 27s27w 29s18w 32s11w 37s07w 41s07w 44s10w into
42s11w.
AREA FORECAST:
==============
ASCENSION (06S/15S, 00E/20W):
WIND : E to SE 10 to 15 reaching 20 in the west.
VIS : Good.
ANGOLA (06S/15S, 00E/00N):
WIND : S to SE 10 to 15 but SW 05 to 15 in the east.
VIS : Good.
ST HELENA (15S/30S, 00E/20W):
WIND : E to SE 05 to 15 in the north, otherwise S to SW 10 to 20 but
NW 15 to 25 in the south-east.
VIS : Good but moderate to poor in showers and rain over the central
and southern parts.
SEA STATE: 3.0 to 3.5m in the extreme south, with SW swell.
TRADES (15S/30S, 00E/WEST COAST):
WIND : S to SE 15 to 25 reaching 30 in the south-east at first but
anticyclonic 05 to 15 in the west. It will become NW 10 to 20
in the extreme south-west from mid-period.
VIS : Good.
SEA STATE: 3.0m to 4.0m in the south-eastern parts for the first half of
the period, with S swell.
TRISTAN (30S/40S, 00E/20W):
WIND : N to NW 30 to 40 in the extreme east at first, otherwise W to
SW 15 to 25 reaching 30 in the south at first.
VIS : Moderate in showers and rain but poor over the eastern parts
at first.
SEA STATE: 3.5 to 4.5m reaching 5.0 to 6.0m in the south but 6.5m in the
extreme south-east at first, with W to SW swell but NW swell
in the east for the first half of the period. It will subside
to 3.0 to 4.0m across the area from mid-period.
CAPE WEST (30S/40S, 00E/20E):
WIND : E to SE 15 to 25 in the north-east, otherwise N to NW 15 to 25
reaching 30 to 40 in the south-western parts but E to NE 20 to
30 in the south-east. It will become W to SW 10 to 20 in the
extreme south-west from mid-period.
VIS : Good but moderate to poor in showers and rain in the west.
SEA STATE: 3.0 to 4.0m with SE swell in the extreme east but 4.0 to 6.0m
in the south-west with NW swell.
ENDS DE CAPE TOWN RADIO/ZSC+
NNNN
