WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE
11th OF SEPTEMBER 2026 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 111000 TO 121000 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. ST HELENA: Cyclonic 35 in the south-east.
2. CAPE EAST: Cyclonic 35 in the south-east.
3. MARION FORTIES EAST: W to SW 35 in the south.
SYNOPTIC CHART 06:00Z
=====================
High 1032 hPa 34s14w, High 1029 hPa 29s57e,
Low 1013 hPa 38s41e, Low 962 hPa 62s10e
1. Cold Front: 45s33e 50s39e 60s39e 66s27e into 62s10e.
AREA FORECAST:
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ASCENSION (06S/15S, 00E/20W):
WIND : SE to E 10 to 20.
VIS : Good.
ANGOLA (06S/15S, 00E/00N):
WIND : S to SE 05 to 15, but SW 05 to 10 in the east.
VIS : Good.
ST HELENA (15S/30S, 00E/20W):
WIND : Variable 05 to 10 in the north-east, otherwise SE to
E 15 to 25 but cyclonic 20 to 30 in the south-east reaching
35 in places.
VIS : Good but moderate to poor in showers and thundershowers in
the south-east.
SEA STATE: 3.0 to 3.5m, except in the north, reaching 4.5 to 5.0m in the
south-east, with SE swell.
TRADES (15S/30S, 00E/WEST COAST):
WIND : S to SE 15 to 25 reaching 30, but variable 05 to 10 in the
north.
VIS : Good but moderate in showers and thundershowers in the south-
west spreading to the south from second half of the period.
SEA STATE: 3.0 to 3.5m in the south, with SE to S swell.
TRISTAN (30S/40S, 00E/20W):
WIND : Anticyclonic 05 to 15, but S to SE 20 to 30 in the north-east
and NW 15 to 25 in the south-west.
VIS : Good but moderate in showers and thundershowers in the north-
east during first half of the period but moderate in showers
in the south-west towards the end of the period.
SEA STATE: 3.0 to 4.0m in the east reaching 4.5 to 5.0m in the north-
east, with S to SW swell but SE swell in the north-east.
CAPE WEST (30S/40S, 00E/20E):
WIND : Anticyclonic 05 to 15 in the south-west, otherwise S to SE 10
to 20 reaching 25 to 30 in the north.
VIS : Good but moderate in showers and thundershowers in the north
from the second half of the period.
SEA STATE: 3.0 to 4.0m, with SW swell but SE swell in the north.
CAPE EAST (32.5S/40S, 20E/50E):
WIND : Cyclonic 15 to 25 reaching 30 to 35 in the east but
anticyclonic 05 to 10 in the south-west reaching 15 to 25 in
the north-west from the second half of the period.
VIS : Moderate to poor in showers and thundershowers in the south-
east and moderate in showers in the west, otherwise good.
SEA STATE: 3.0 to 3.5 reaching 4.0 to 5.0m in the south-east, with SW to
W swell.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : S 05 to 15 but NE 15 to 25 in the east becoming NW from the
second half of the period.
VIS : Good but moderate in rain and showers in the south-east from
the second half of the period.
MOZAMBIQUE CHANNEL:
WIND : S to SE 10 to 20.
VIS : Good.
MADAGASCAR EAST (10S/25S, EAST COAST/55E):
WIND : E to SE 15 to 25 in the north reaching 30 in the extreme
north-west but NE 10 to 20 in the south.
VIS : Moderate in showers and rain in places.
SEA STATE: 3.0 in the north in the first half of the period,
with E to SE swell.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : W to SW 20 to 30 reaching 35 in the south but S to SE 20 to 30
in the extreme north-east during the first half of the period.
VIS : Moderate in showers and thundershowers in the north-east at
first but moderate in the south-west spreading to the south
in the second half of the period.
SEA STATE: 3.5 to 4.5m reaching 5.0 to 6.5m in the south-west from the
second half of the period, with W to SW swell.
AREA 2:
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MARINE METEOROLOGICAL BULLETIN FROM METEO-FRANCE/LA REUNION ON AREA ACK (AMSTERDAM-CROZET-KERGUELEN)
26/09/11 AT 0500UTC
AVERAGED WIND SPEED ON BEAUFORT SCALE. (Wind gusts may be about 40% stronger than the averages given here).
PART 1: WARNING
- Gale continuing or expected over WAM, CRO and KER.
PART 2: GENERAL SYNOPSIS, 26/09/11 AT 0000UTC
- Low 963 near 57S/72E with associated cold front over north of KER, moving eastwards.- Shallow low 1015 near 38S/36E with waving front along 54N between 34E and 65E, moving eastwards and deepening. Expected 999 near 40S/54E the 12 at 00 UTC.- High 1029 near 29S/57E, slowly moving east-northeastwards.
PART 3: FORECAST FOR 24 HOURS FROM 26/09/11 at 0600UTC to 26/09/12 at 0600UTC
WAM (30S/40S, 50E/65E)
Frontal rain or showers. Scattered showers in north.WIND: - In far north: Anticlockwise 3 or 4.- Elsewhere: West 5 or 6, becoming Clockwise 7 or 8 later. Gusts.
SEA: moderate or rough, locally very rough in south. SW swell 4 or 5 m in
far south.
VISIBILITY: poor in preciptation.
AMS (30S/40S, 65E/80E)
Frontal rain or showers. Scattered showers in north.WIND: Westerly 5 or 6, at times 7, decreasing 4 or 5 later, increasing Northwest 5 or 6 from
west at end.
SEA: rough or very rough. SW swell 4 or 5 m.
VISIBILITY: poor in preciptation.
CRO (40S/50S, 50E/65E)
Frontal rain or showers.WIND: Southwest 6 or 7, decreasing soon 4 or 5, increasing Clockwise 7 or 8 in far north later and veerinf Westerly 5 or 6 elsewhere. Gusts.
SEA: very rough or high, decreasing rough or very rough at end SW swell 5 or 6 m, abating 4 or 5 m later.
VISIBILITY: poor in preciptation.
KER (40S/50S, 65E/80E)
Frontal rain or showers.WIND: Southwesterly 7 or 8, decreasing soon 5 or 6 in west. Severe gusts.
SEA: very rough or high. SW swell 5 m from west soon.
VISIBILITY: poor in precipitation.=