WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE
08th 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 081000 TO 091000 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 NW 35 to 40 in the south-east at first.
SYNOPTIC CHART 06:00Z
=====================
High 1038 hPa 34s43e High 1023 hPa 29s06e
Low 1016 hPa 13s11e
1. Cold Front: 23s19w 28s10w 35s01w 43s08e 51s10e into 49s03e
AREA FORECAST:
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ASCENSION (06S/15S, 00E/20W):
WIND : E to SE 05 to 15.
VIS : Good.
ANGOLA (06S/15S, 00E/00N):
WIND : S to SE 05 to 15, but SW 05 to 15 in the east.
VIS : Good.
ST HELENA (15S/30S, 00E/20W):
WIND : Anticyclonic 05 to 15 in the north, otherwise S to SW 15 to
25.
VIS : Good but moderate in showers and rain in places in the south.
SEA STATE: 3.0 to 3.5m in the south-west spreading to the south-east from
mid-period, with SW swell.
TRADES (15S/30S, 00E/WEST COAST):
WIND : Variable 05 to 10 in the south-west, otherwise S to SE 15 to
25.
VIS : Good but moderate in showers and thundershowers in places in
the central parts until mid-period.
TRISTAN (30S/40S, 00E/20W):
WIND : NW to N 15 to 25 in the north-east at first, otherwise SW to W
15 to 25, but SE 10 to 20 in the north-east from mid-period.
VIS : Good but moderate in showers and rain in the north-east and in
the south-west from mid-period.
SEA STATE: 3.0 to 4.0m reaching 4.5 to 5.0m in the extreme south until
mid-period, with W to SW swell.
CAPE WEST (30S/40S, 00E/20E):
WIND : Variable 05 to 10 in the north-east, otherwise NW 15 to 25
reaching 30 in the south at first, but SW 10 to 20 in the
south-west spreading to the central parts by the end of the
period.
VIS : Good but moderate in showers in places in the west and south-
east from mid-period.
SEA STATE: 3.0 to 4.0m except in the north-east reaching 4.5 to 5.0m in
the south-west until mid-period, with SW to W swell.
CAPE EAST (32.5S/40S, 20E/50E):
WIND : Variable 05 to 10 in the north-east and west, otherwise N to
NE 15 to 25, but W to NW 15 to 25 in the south-east.
VIS : Good.
SEA STATE: 3.0 to 4.0m except in the west reaching 4.5 to 5.0m in the
extreme east at first, with SW swell but NW in the central
parts.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : NE to E 15 to 25 in the west reaching 30 in the south-west,
Otherwise SE 20 to 30, but anticyclonic 05 to 15 in the south-
east.
VIS : Good.
SEA STATE: 3.5 to 4.5m except in the west, reaching 5.0 to 6.0m in
the east until mid-period, with S to SW swell but SE in the
north.
MOZAMBIQUE CHANNEL:
WIND : Variable 05 to 10 in the north, otherwise S to SE 15 to 25,
reaching 30 in the south-east.
VIS : Good but moderate to poor in showers and thundershowers in the
in the north.
SEA STATE: 4.0 to 5.0m except in the north reaching 5.5m in the south-
east until mid-period, with S to SE swell.
MADAGASCAR EAST (10S/25S, EAST COAST/55E):
WIND : SE to E 15 to 25.
VIS : Good but moderate in showers and rain in places.
SEA STATE: 3.0 to 4.0m in the north, otherwise 4.5 to 5.5m, with S
swell.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : W to NW 20 to 30, reaching 35 to 40 in the south-east until
mid-period.
VIS : Good but moderate in showers and rain in the south-east at
first and in the central and southern parts from mid-period.
SEA STATE: 4.0 to 5.0m reaching 5.5 to 6.5m over the south-central and
south-eastern parts, 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)
2026/09/08 AT 0600UTC
AVERAGED WIND SPEED ON BEAUFORT SCALE. (WIND GUSTS MAY BE ABOUT 40% STRONGER THAN THE AVERAGES GIVEN HERE).
PART 1: WARNING
- STRONG GALE FORCE 9 OVER CRO.- GALE FORCE 8 OVER KER.
PART 2: GENERAL SYNOPSIS, 26/09/08 AT 0000UTC
- COLD FRONT OVER NORTHEASTERN AMS AND LEAVING THE AREA SOON.- COLD FRONT 49S/31E, 51S/33E, 59S/36E, 59S/37E EXPECTED OVER KER AT END.- HIGH 1037 HPA AXIS 34S/41E, EXPECTED 1038 HPA BY 33S/49E AT END.
PART 3: FORECAST FOR 24 HOURS FROM 26/09/08 AT 0600UTC TO 26/09/09 AT 0600UTC
WAM (30S/40S, 50E/65E)
SCATTERED SHOWERS.
WIND : ANTICLOCKWISE 3 TO 5 , INCREASING W 6/7 OVER SOUTHERN . GUSTS.
SEA : VERY ROUGH TO HIGH, BECOMING ROUGH TO VERY ROUGH BY WESTERN AREA
LATER. LONG SW SWELL 6 TO 7 M, ABATING 4 M AT END.
VISI : POOR IN PRECIPITATION.
AMS (30S/40S, 65E/80E)
FRONTAL RAIN, SHOWERS AND SQUALLS OVER NORTHEASTERN AT FIRST.
WIND : SW OR W 6 TO 7 , DECREASING ANTICLOCKWISE 3 TO 5 OVER NORTHERN
AREA SOON. GUSTS.
SEA : VERY ROUGH TO HIGH. LONG SOUTH-WESTERLY SWELL, 5 TO 7 M.
VIS : POOR IN PRECIPITATIONS.
CRO (40S/50S, 50E/65E)
SCATTERED SHOWERS OVER SOUTHERN LATER.
WIND : WESTERLY 6 , INCREASING 7/8 AT TIMES 9 SOON. SEVERE GUSTS.
SEA : VERY ROUGH TO HIGH. LONG SOUTH-WESTERLY SWELL OF 4 TO 6 M ABATING
3 TO 4M.
VIS : POOR IN PRECIPITATION.
KER (40S/50S, 65E/80E)
SCATTERED SHOWERS. RAIN AND FRONTAL SHOWERS LATER.
WIND : W OR SW 6/7 AT TIMES 8. SEVERE GUSTS.
SEA : HIGH. LONG SW SWELL BETWEEN 4 TO 6 M.
VIS : POOR TO VERY POOR IN PRECIPITATION.