WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE
27th OF SEPTEMBER 2026 AT 16:00 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 272200 TO 282200 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. MARION FORTIES EAST: NW 35 in places in the north-east, otherwise E to
SE 35 in the east and south-east.
SYNOPTIC CHART 12:00Z
=====================
High 1028 hPa 40s10e, High 1028 hPa 40s65e
Low 1004 hPa 42s25w, Low 1004 hPa 40s38e
1. Cold Front: 27s35w 32s27w into 42s25w
2. Cold Front: 31s36e 35s40e into 40s38e
AREA FORECAST:
==============
ASCENSION (06S/15S, 00E/20W):
WIND : SE to E 10 to 20.
VIS : Good.
ANGOLA (06S/15S, 00E/00N):
WIND : S to SE 10 to 20 but SW 05 to 10 in the north-east.
VIS : Good.
ST HELENA (15S/30S, 00E/20W):
WIND : E to SE 10 to 20 but N to NW 05 to 15 in the south-west.
VIS : Good but moderate in showers and thundershowers in the central
south and south-western parts.
TRADES (15S/30S, 00E/WEST COAST):
WIND : S to SE 10 to 20, reaching 25 in the south-east.
VIS : Good.
SEA STATE: 3.0 to 3.5m in the south-east, with S to SE swell.
TRISTAN (30S/40S, 00E/20W):
WIND : NE 10 to 20 in the north-east, otherwise N to NW 15 to 25
reaching 30 in places over the west and the central parts.
VIS : Good but moderate in showers and thundershowers in the
western and southern parts.
SEA STATE: 3.0 to 3.5m in the west and central parts, with NW swell.
CAPE WEST (30S/40S, 00E/20E):
WIND : E to NE 10 to 15 in the west, otherwise S to SE 15 to 25.
VIS : Good.
SEA STATE: 3.0 to 4.0m in the eastern parts, with S to SE swell.
CAPE EAST (32.5S/40S, 20E/50E):
WIND : N to NW 15 to 25 in the eastern parts, otherwise S to SW 15 to
25, reaching 30 at times in the western parts.
VIS : Moderate in showers and thundershowers.
SEA STATE: 3.0 to 4.0m, reaching 4.5 to 5.0m in the western parts, with W
to SW swell, but NW swell in the east at first.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : N to NE 15 to 25 in the east, otherwise SW 20 to 30.
VIS : Moderate to poor in showers and thundershowers, except in the
western parts.
SEA STATE: 3.0 to 3.5m in the south and eastern parts, with S to SW
swell.
MOZAMBIQUE CHANNEL:
WIND : N to NE 05 to 15, becoming SE 10 to 15 in the south-west
during the second half of the period.
VIS : Good.
MADAGASCAR EAST (10S/25S, EAST COAST/55E):
WIND : S to SE 10 to 20 but E to NE 10 to 20 in the south.
VIS : Good but moderate in showers and rain in places.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : NW 20 to 30 in the north and north-east, reaching 35 in
places until mid-period, otherwise E to SE 20 to 30, reaching
35 in the east and south-east.
VIS : Moderate to poor in showers and possible snow-showers, except
In the west and south-west.
SEA STATE: 3.5 to 4.5m, with W to SW swell.
AREA 2:
======
MARINE METEOROLOGICAL BULLETIN FROM METEO-FRANCE/LA REUNION ON AREA
ACK (AMSTERDAM-CROZET-KERGUELEN)
26/09/27 AT 1600UTC
AVERAGED WIND SPEED ON BEAUFORT SCALE. (WIND GUSTS MAY BE ABOUT 40%
STRONGER THAN THE AVERAGES GIVEN HERE).
PART 1: WARNING
NIL.
PART 2: GENERAL SYNOPSIS, 26/09/27 AT 1200UTC
- LOW 998 NEAR 38S/38E ASSOCIATED WITH A DISTURBANCE OVER CRO AT
FIRST, MOVING SOUTH-EASTWARD.
- HIGH 1031 HPA NEAR 43S/62E ASSOCIATED WITH HIGH AREA OVER ALL PART,
SLOW-MOVING EASTWARD.
PART 3: FORECAST FOR 24 HOURS FROM 26/09/27 AT 1800UTCTO 26/09/28
AT 1800UTC
WAM (30S/40S, 50E/65E)
RARE SHOWERS THEN RAIN OVER SOUTH-WESTERN AT END.
WIND: NORTHERLY 2/4 INCREASING 5/6 LOCALLY 7 OVER WESTERN SOON.
SEA : MODERATE OR ROUGH BY SW SWELL 2 TO 4 M ABATING.
VIS : POOR IN PRECIPITATION.
AMS (30S/40S, 65E/80E)
RARE SHOWERS.
WIND: ANTICLOCKWISE 2/4.
SEA : ROUGH TO VERY ROUGH FROM NORTH TO SOUTH BY SW SWELL 3 OR 5 M.
VIS : GOOD.
CRO (40S/50S, 50E/65E)
RAIN OR SNOW OVER WESTERN AT FIRST.
WIND: ANTICLOCKWISE 3/5 INCREASING AT FIRST E 5/6 BY WESTERN AHEAD THE
FRONT THEN N 5/6 TEMPORARILY 7 BEHIND THE FRONT.
SEA : ROUGH TO VERY ROUGH. SW SWELL 4 TO 6 M DECREASING 2 TO 4 M SOON.
VIS : VERY POOR IN PRECIPITATION.
KER (40S/50S, 65E/80E)
SCATTERED SHOWERS.
WIND: W TO SW 6/7 WITH GUSTS OVER SOUTH-EASTERN THEN ANTICLOCKWISE 3/5
ELSEWHERE.
SEA : VERY ROUGH TO HIGH BECOMING ROUGH OVER NORTHWESTERN AT END. SW
SWELL 4 TO 6 M ABATING AT END.
VIS : POOR IN PRECIPITATION.