WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE
05th OF OCTOBER 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 051000 TO 061000 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: NW 35 in the south-west towards mid-period.
2. CAPE WEST: NW 35 in the south-east until mid-period.
3. CAPE EAST: E to NE 35 in the central parts from mid-period.
4. MARION FORTIES EAST: N to NW 35 to 40 in the west from mid-period.
SYNOPTIC CHART 06:00Z
=====================
High 1028 hPa 35s20w, High 1040 hPa 43s50e.
Low 938 hPa 60s21e.
1. Cold Front: 32s07e 41s20e 50s26e 55s29e 61s23e into 60s21e.
AREA FORECAST:
==============
ASCENSION (06S/15S, 00E/20W):
WIND : E to SE 10 to 20.
VIS : Good.
ANGOLA (06S/15S, 00E/00N):
WIND : S to SE 05 to 15 but SW 05 to 10 in the extreme east.
VIS : Good.
ST HELENA (15S/30S, 00E/20W):
WIND : E to SE 15 to 25 becoming Anticyclonic 05 to 15 in the south
from mid-period.
VIS : Good.
SEA STATE: 3.0 to 4.0m in the south, reaching 4.5 to 5.5m in the south-
east, with SW swell but SE swell in the north.
TRADES (15S/30S, 00E/WEST COAST):
WIND : S to SE 10 to 20 reaching 25 in the south, but SW 05 to 15 in
the extreme south-west, spreading to the south-east from mid-
period.
VIS : Good.
SEA STATE: 3.0 to 4.0m in the south reaching 4.5 to 5.0m in the south-
west spreading to the south-east from mid-period, with S to SW
swell.
TRISTAN (30S/40S, 00E/20W):
WIND : SW 15 to 25 in the south and east drifting to the extreme east
until mid-period, otherwise Anticyclonic 05 to 15, becoming NW
15 to 25 in the west from mid-period reaching 30 to 35 in the
south-west towards mid-period.
VIS : Good but moderate in showers in the south-eastern parts until
mid-period and in the west from mid-period, spreading to the
south-east by the end of the period.
SEA STATE: 4.5 to 5.5m reaching 6.0 to 6.5m in the south-west, with W to
SW swell.
CAPE WEST (30S/40S, 00E/20E):
WIND : NW 20 to 30 reaching 35 in the south-east until mid-period,
otherwise S to S 15 to 25 reaching 30 in places, becoming
Anticyclonic 05 to 15 in the north-west by the end of the
period.
VIS : Moderate in showers and rain, clearing in the north-west from
mid-period.
SEA STATE: 4.5 to 5.5m in the west, spreading to the east from mid-
period, reaching 6.0 to 7.0m in the south-west and south, with
SW swell.
CAPE EAST (32.5S/40S, 20E/50E):
WIND : E to NE 20 to 30 reaching 35 in the central parts from mid-
period, but N to NW 05 to 15 in the west becoming W to SW 20
to 30 from mid-period.
VIS : Good but moderate in showers and thundershowers in the west
from mid-period.
SEA STATE: 3.0 to 4.0m reaching 4.5 to 5.0m in the west by the end of the
period, with E to NE swell, but SW to W swell in the west.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : E to NE 15 to 25 reaching 30 in places in the central parts.
VIS : Good but moderate to poor in showers and thundershowers in the
west and central parts.
SEA STATE: 3.0 to 4.0m in the west and central parts, with E to NE swell.
MOZAMBIQUE CHANNEL:
WIND : S to SW 05 to 15 in the south-east, otherwise E to NE 05 to
15.
VIS : Good but moderate in showers and thundershowers in the south-
west at times.
MADAGASCAR EAST (10S/25S, EAST COAST/55E):
WIND : E to NE 10 to 20 in the south, otherwise SE 10 to 20.
VIS : Good.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : Anticyclonic 05 to 15 in the east drifting to the north-east
by mid-period, otherwise N to NW 20 to 30 reaching 35 to 40 in
the west from mid-period.
VIS : Good, becoming moderate in showers and rain in the west from
mid-period.
SEA STATE: 3.0 to 4.0m reaching 5.5 to 6.0m in the south and in the west
from mid-period, with W to SW swell but NE swell in the north-
east.
AREA 2:
======
MARINE METEOROLOGICAL BULLETIN FROM METEO-FRANCE/LA REUNION ON AREA ACK (AMSTERDAM-CROZET-KERGUELEN)
2026/10/05 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 OVER KER.
PART 2: GENERAL SYNOPSIS, 26/10/05 AT 0000UTC
- DEEPENING THUNDERY LOW OVER NORTHERN AMS, 1012 HPA NEAR 29S/70E, SLOWLY MOVING EASTWARD.- COLD FRONT OVER KER, RATHER RAPIDLY MOVING EASTWARD AND LEAVING KER AT FIRST.- BUILDING HIGH 1041 NEAR 43S/45E, RATHER RAPIDLY MOVING EASTWARD.
PART 3: FORECAST FOR 24 HOURS FROM 26/10/05 AT 0600UTC TO 26/10/06 AT 0600UTC
WAM (30S/40S, 50E/65E)
SCATTERED SHOWERS.
WIND : SE THEN E LATER 4 OR 5 TEMPORARILY 6.
SEA : MODERATE OR ROUGH, LOCALLY VERY ROUGH OVER FAR SOUTHEASTERN AT FIRST
BY SW SWELL 3 OR 4 METERS.
VIS : GOOD.
AMS (30S/40S, 65E/80E)
SHOWERS AND SQUALLS AT TIMES THUNDERY OVER NORTHERN THEN OVER NORTHEASTERN AT END.
WIND : SE 5 OR 6 LOCALLY 7 BUT CLOCKWISE 3 OR 4 OVER NORTHEASTERN AT FIRST.
SEA : ROUGH TO VERY ROUGH BY SW SWELL 3 TO 5 METERS.
VIS : POOR OR VERY POOR IN PRECIPITATION.
CRO (40S/50S, 50E/65E)
SCATTERED SHOWERS.
WIND: SW 5 OR 6 OVER EASTERN, AND EVEN 7 OVER SOUTHEASTERN AT FIRST.
ANTICLOCKWISE 3 TO 5 OVER WESTERN REACHING NORTHERN SOON BUT NW 5
OR 6 OVER SOUTHERN LATER.
SEA : ROUGH TO VERY ROUGH BUT HIGH OVER SOUTHEASTERN AT FIRST. SW SWELL 4
OR 5 METERS.
VIS : GOOD.
KER (40S/50S, 65E/80E)
SCATTERED SHOWERS.
WIND: SW 7 OR 8 DECREASING S 5 OR 6 FROM WEST LATER. GUSTS.
SEA : VERY ROUGH TO HIGH. SW SWELL 4 OR 5 METERS.
VIS : POOR IN PRECIPITATION.=