WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE
07th OF SEPTEMBER 2026 AT 17:30 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 072200 TO 082200 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 to W 35 in the south-east at first.
2. MARION FORTIES EAST : W to NW 35 in the south-east.
3. MOZAMBIQUE CHANNEL: S to SE 35 in the south-east from mid-period.
SYNOPTIC CHART 12:00Z
=====================
High 1036 hPa 37s35e High 1024 hPa 26s00w
Low 980 hPa 43s15w, Low 962 hPa 64s12e, Low 962 hPa 64s21e
1. Cold Front: 22s24w 31s15w 41s10w into 43s15w
AREA FORECAST:
==============
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 10 in the east.
VIS : Good.
ST HELENA (15S/30S, 00E/20W):
WIND : Anticyclonic 05 to 10 across the north-west central parts and
the south-east, otherwise E to SE 10 to 20, but S to SW 05 to
15 in the south-west.
VIS : Good but moderate in showers and thundershowers over the
central parts and the south-east.
SEA STATE: 3.0 to 3.5m in the south-west, with NW swell in the south-
west.
TRADES (15S/30S, 00E/WEST COAST):
WIND : Variable 05 to 10 in the south-west, otherwise S to SE 10 to
20 in the east.
VIS : Good, but moderate in showers over the central eastern parts
from mid-period.
TRISTAN (30S/40S, 00E/20W):
WIND : NW to W 15 to 25 in the north-east reaching 35 in the south-
East at first, but S to SW 15 to 25 in the south-west and central
parts.
VIS : Good but moderate to poor in showers and thundershowers across
from the central north to the south-eastern parts.
SEA STATE: 3.0 to 4.0m in the except in the north-east, with W to NW
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 from mid-period while spreading to
the south-east towards the end of the period.
VIS : Good, but moderate in showers in places in the west and south-
east.
SEA STATE: 3.0 to 4.0m over the south-western parts, with S to SW swell.
CAPE EAST (32.5S/40S, 20E/50E):
WIND : Anticyclonic 05 to 10 in the north-east, otherwise NE to N 15
to 25, but NW to W 05 to 15 in the west.
VIS : Good.
SEA STATE: 3.5 to 4.5m in the eastern parts, with SW swell.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : E to NE 05 to 15, reaching 20 to 25 in the central north, but
NE to N 15 to 25 in the south-west towards the end of the
period.
VIS : Good.
SEA STATE: 3.0 to 4.0m over the central parts, reaching 4.5 to 5.5m in
the east, with S to SW swell.
MOZAMBIQUE CHANNEL:
WIND : Variable 05 to 10 in the north-east, otherwise S to SE 15 to
25, reaching 30 to 35 in the south-east from mid-period.
VIS : Good but moderate in showers and rain in the east and south-
west at times.
SEA STATE: 3.0 to 3.5m in the south and central parts, reaching 4.5 to
5.5 in the south, with S to SE swell.
MADAGASCAR EAST (10S/25S, EAST COAST/55E):
WIND : S to SE 15 to 25, reaching 30 in the southern parts.
VIS : Good, but moderate in rain and showers in places south
spreading to the central and north-western parts from mid-
period.
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 15 to 25, reaching 30 to 35 in the south-east.
VIS : Good but moderate in showers and rain in the south-west,
spreading to the south-east from mid-period.
SEA STATE: 3.0 to 4.0m in the north-west, reaching 5.5 to 6.5m over the
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)
26/09/07 AT 1700UTC
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 KER.- GALE FORCE 8 OVER WAM, AMS AND CRO.
PART 2: GENERAL SYNOPSIS, 26/09/07 AT 1200UTC
- LOW AT 962 HPA NEAR 54S/77E, MOVING SOUTHEASTWARD.- ASSOCIATED COLD
FRONT CF AXIS 32S/65E, 36S/70E, 40S/75E, 45S/80E, MOVING
SOUTHEASTWARD.- HIGH AT 1036 HPA NEAR 38S/36E.
PART 3: FORECAST FOR 24 HOURS FROM 26/09/07 AT 1800UTC TO 26/09/08
AT 1800UTC
WAM (30S/40S, 50E/65E)
RAIN AND SHOWERS AT THE START OF THE PERIOD, FOLLOWED BY OCCASIONAL
SHOWERS.
WIND: SOUTHWEST 6 TO 8 WITH GUSTS, BECOMING ANTICLOKWISE 3
TO 4 FROM THE WEST OVERNIGHT.
SEA : VERY ROUGH TO HIGH, BECOMING VERY
ROUGH TO ROUGH TOWARD THE END OF THE FORECAST PERIOD. LONG SOUTHWEST
SWELL 5 TO 7 M, SUBSIDING TO 4 TO 5 M.
VIS : POOR TO VERY POOR DURING PRECIPITATION BECOMING GOOD.
AMS (30S/40S, 65E/80E)
RAIN, SHOWERS AND FRONTAL SQUALLS UNDER A COLD FRONT.
WIND: NORTH-WESTERLY 6 TO 7, LOCALLY 8, WITH GUSTS AHEAD OF THE FRONT;
VEERING WEST THEN SOUTH-WESTERLY 6 TO 7, LOCALLY 8, BEHIND THE FRONT;
EASING TO WESTERLY 4/5 IN THE SOUTHERN SECTOR AND SOUTHERLY 3/4 IN
THE NORTHERN SECTOR BY THE END OF THE FORECAST PERIOD.SEA : ROUGH TO
VERY ROUGH, BECOMING VERY ROUGH TO HIGH. ARRIVAL OF A LONG
SOUTH-WESTERLY SWELL, 5 TO 7 M.
VI : POOR TO VERY POOR DURING RAINFALL.
CRO (40S/50S, 50E/65E)
SCATTERED SHOWERS, THEN OCCASIONAL SHOWERS.
WIND: SOUTH-WESTERLY 7 TO 8 WITH GUSTS VEERING WESTERLY 6 TO 7 FROM THE WEST,
THEN FRESHENING TO 7/8 TOWARDS THE END OF THE PERIOD.
SEA : HIGH TO VERY ROUGH, BECOMING VERY ROUGH TO ROUGH TOWARDS THE END OF THE
PERIOD. LONG SOUTH-WESTERLY SWELL OF 4 TO 6 M, SUBSIDING TO 3 TO 4 M.
VIS : POOR DURING RAINFALL, THEN GOOD.
KER (40S/50S, 65E/80E)
RAIN AND THUNDERSTORMS AS THE FRONT PASSES, FOLLOWED BY OCCASIONAL
SHOWERS.
WIND: NORTH-WESTERLY 7 TO 8 AHEAD OF THE FRONT, TEMPORARILY
EASING TO 5 TO 7 BEHIND THE FRONT, THEN SHIFTING TO SOUTH-WESTERLY TO
WESTERLY 7 TO 8, LOCALLY 9. VIOLENT GUSTS. THEN EASING WESTERLY 5 TO
7 TOWARDS THE END OF THE PERIOD.
SEA : ROUGH TO VERY ROUGH, BECOMING VERY ROUGH TO HIGH. A SWELL FROM THE
WEST OF 4 TO 6 M IS EXPECTED.
VIS : POOR TO VERY POOR DURING RAINFALL.