WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE
09th 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 091000 TO 101000 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: W to NW 35 in the south.
SYNOPTIC CHART 06:00Z
=====================
High 1024 hPa 26s01e.
Low 1008 hPa 40s15w, Low 1018 hPa 32s29e, Low 982 hPa 54s37e, Low 1014 hPa 29s51e.
1. Cold Front: 38s27e 40s30e 43s35e 47s36e 50s38e into 54s37e.
AREA FORECAST:
==============
ASCENSION (06S/15S, 00E/20W):
WIND : E to SE 10 to 15.
VIS : Good.
ANGOLA (06S/15S, 00E/00N):
WIND : S to SE 10 to 20 but SW 05 to 15 in the extreme east.
VIS : Good but moderate in showers and thundershowers in the extreme
north-east at first.
ST HELENA (15S/30S, 00E/20W):
WIND : Anticyclonic 05 to 15.
VIS : Good but moderate in rain and showers in the south.
TRADES (15S/30S, 00E/WEST COAST):
WIND : Anticyclonic 05 to 15 in the south-west, otherwise S to SE 15
to 25.
VIS : Good.
SEA STATE: 3.0m in the extreme east until mid-period, with S swell.
TRISTAN (30S/40S, 00E/20W):
WIND : NW 20 to 30 in the east until mid-period, otherwise W to SW 20
to 30.
VIS : Moderate in showers and rain.
SEA STATE: 3.0 to 4.0m in the south-east, becoming 3.0 to 3.5m in the
extreme south-west towards end of the period, with W to SW
swell.
CAPE WEST (30S/40S, 00E/20E):
WIND : Anticyclonic 05 to 15, but N to NW 20 to 30 in the extreme
west, spreading to the central parts towards end of the
period.
VIS : Good but moderate in rain and showers in the extreme west,
spreading to the central parts towards end of the period.
SEA STATE: 3.0 to 4.0m, except in the extreme north, reaching 4.5 to 5.0m
in the extreme south, with SW to W swell.
CAPE EAST (32.5S/40S, 20E/50E):
WIND : N to NW 15 to 25, but W to SW 15 to 25 in the west, becoming
anticyclonic 05 to 15 towards end of the period.
VIS : Moderate in showers and rain, becoming good towards end of the
period.
SEA STATE: 3.0 to 4.0m reaching 4.5 to 5.5m in the south-west, with SW to
W swell.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : Cyclonic 10 to 20 in the east and extreme west, otherwise
anticyclonic 05 to 15.
VIS : Good but moderate in showers and thundershowers in the east
and in the south-west towards mid-period.
SEA STATE: 3.0 to 3.5m, except in the extreme north, with S swell.
MOZAMBIQUE CHANNEL:
WIND : E to NE 05 to 15 in the extreme east and SW 15 to 25 in the
extreme east until mid-period, otherwise S to SE 10 to 20.
VIS : Good.
MADAGASCAR EAST (10S/25S, EAST COAST/55E):
WIND : Variable 05 to 10 in the south, otherwise E to SE 05 to 15,
spreading southwards towards end of the period.
VIS : Good but moderate in showers and thundershowers in the south.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : W to NW 15 to 25 reaching 30 to 35 in the south.
VIS : Moderate in showers and rain, with snow-showers in the extreme
south from mid-period, when it will become good in the north.
SEA STATE: 3.5 to 4.5m but 5.0 to 5.5m in the south-west, reaching 6.0 to
6.5m in the extreme south-west from mid-period, while 7.0m
towards end of the period, with W to NW swell.
AREA 2:
======
MARINE METEOROLOGICAL BULLETIN FROM METEO-FRANCE/LA REUNION ON AREA ACK (AMSTERDAM-CROZET-KERGUELEN)
26/10/09 AT 0500UTC
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, 26/10/09 AT 0000UTC
- DEEPENING LOW 1012 NEAR 47S/48E, WITH ASSOCIATED COLD FRONT (CF) OVER FAR WESTERN CRO, STEADILY MOVING EASTWARD. SECOND COLD FRONT
(CG) FROM WEST LATER AND MERGING WITH CF AT END.
- STATIONARY DEEPENING THUNDERY LOW 1017 NEAR 29S/50E.
- HIGH 1036 NEAR 40S/70E, SLOWLY MOVING EASTWARD.
PART 3: FORECAST FOR 24 HOURS FROM 26/10/09 AT 0600UTC TO 26/10/10 AT 0600UTC
WAM (30S/40S, 50E/65E)
THUNDERY SHOWERS AND SQUALLS OVER FAR NORTH-WESTERN. SCATTERED SHOWERS ELSEWHERE.
WIND: CLOCKWISE 4/5 OVER FAR NORTH-WESTERN AT TIMES 6 WITH GUSTS IN
SQUALLS, BUT ANTICLOCKWISE 3/4 ELSEWHERE AT TIMES 5. INCREASING
SOON NW 5/6 WITH GUSTS OVER FAR SOUTHERN.
SEA: MODERATE TO ROUGH.
VIS: POOR OR VERY POOR IN PRECIPITATION.
AMS (30S/40S, 65E/80E)
SCATTERED SHOWERS.WIND: ANTICLOCKWISE 2/4.
SEA: MODERATE TO ROUGH.
VIS: MAINLY GOOD.
CRO (40S/50S, 50E/65E)
FRONTAL RAIN AND SHOWERS WITH CF THEN CG.
WIND: INCREASING NORTH-WESTERLY 5/6 AT TIMES 7, BACKING WESTERLY OVER
WESTERN AT END. GUSTS.
SEA: ROUGH TO VERY ROUGH. LONG SOUTH-WESTERLY SWELL 3 TO 4M ABATING.
VIS: POOR IN PRECIPITATION.
KER (40S/50S, 65E/80E)
SCATTERED SHOWERS. FRONTAL RAIN AND SHOWERS OVER FAR SOUTH-WESTERN
LATER.
WIND: ANTICLOCKWISE 2/4, INCREASING SOON AND GRADUALLY NORTH-WESTERLY 5/6
FROM WEST AT TIMES 7 WITH GUSTS.
SEA: ROUGH TO VERY ROUGH, BUT VERY ROUGH AT FIRST OVER FAR SOUTH-EASTERN
BY SW SWELL 4 TO 5M ABATING. BECOMING VERY ROUGH DUE TO WIND OVER
FAR SOUTH-WESTERN LATER.
VIS: GOOD, THEN POOR IN PRECIPITATION.=