WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE
09th OF OCTOBER 2026 AT 13:30 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 092200 TO 102200 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:
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1. MARION FORTIES EAST: W to SW 35 in the extreme south.
SYNOPTIC CHART 12:00Z
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High 1024 hPa 28s05e, High 1022 hPa 32s41e.
Low 1008 hPa 40s10w, Low 970 hPa 57s341e, Low 1016 hPa 29s50e.
1. Cold Front: 38s32e 40s35e 43s40e 47s42e 50s43e into 57s341e.
AREA FORECAST:
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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 W to SW 05 to 15 in the extreme east.
VIS : Good.
ST HELENA (15S/30S, 00E/20W):
WIND : Anticyclonic 05 to 15, becoming S to SW 05 to 15 in the south-
west from mid-period.
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 at first, with S swell.
TRISTAN (30S/40S, 00E/20W):
WIND : W to SW 20 to 30.
VIS : Moderate in showers and rain.
SEA STATE: 3.0 to 4.0m in the south-east until mid-period, while becoming
3.0 to 4.0m in the extreme south-west towards mid-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 west,
spreading to the south-east towards end of the period. It will
become W 20 to 30 from mid-period.
VIS : Good but moderate in rain and showers in the west, spreading
to the south-western parts by end of the period.
SEA STATE: 3.0 to 4.0m, except in the extreme north, reaching 4.5m in the
extreme south until mid-period, with SW to W swell.
CAPE EAST (32.5S/40S, 20E/50E):
WIND : NW 15 to 25, but W to SW 15 to 25 in the west, becoming
anticyclonic 05 to 15 towards mid-period. It will become N to
NE 15 to 25 in the west towards end of the period.
VIS : Good, becoming moderate in showers and thundershowers in the
north-west towards end of the period.
SEA STATE: 3.0 to 4.0m in the west, reaching 4.5 to 5.0m in the extreme
south-west until mid-period, 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. It will become E to NE 15 to 25 in the
west, while 15 to 25 over the central parts from mid-period.
VIS : Moderate in showers and thundershowers, but good over the
central parts.
SEA STATE: 3.0 to 3.5m in the south-west until mid-period, with S swell.
MOZAMBIQUE CHANNEL:
WIND : S to SE 10 to 20, reaching 25 to 30 in the south-west.
VIS : Good.
SEA STATE: 3.0 to 3.5m in the south-west towards end of the period, with
S to SE swell.
MADAGASCAR EAST (10S/25S, EAST COAST/55E):
WIND : Variable 05 to 10 in the south, otherwise E to SE 10 to 20,
spreading southwards from mid-period.
VIS : Good but moderate in showers and thundershowers in the south
until mid-period.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : W to SW 15 to 25 reaching 30 to 35 in the extreme south.
VIS : Moderate in showers and rain, with snow-showers in the extreme
south, becoming good in the north during the first half of the
period.
SEA STATE: 3.0 to 3.5m in the extreme north, otherwise 4.0 to 4.5m but
5.0 to 5.5m in the south. It will reach 6.0 to 6.5m in the
extreme south, while 7.0m towards mid-period, with W to NW
swell.
AREA 2:
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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.=