WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE
03rd OF SEPTEMBER 2026 AT 16:00 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 032200 TO 042200 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. TRADES: S to SE 35 in the south-east.
2. CAPE EAST: S to SW 35 to 40 in the north-east from mid-period.
3. DURBAN EAST: S to SE 35 in the south-west and extreme south from mid-
period.
4. MARION FORTIES EAST: SW to W 35 to 40 in the south from mid-period.
SYNOPTIC CHART 12:00Z
=====================
High 1038 hPa 41s06e.
Low 1014 hPa 29s16e, Low 964 hPa 47s20w, Low 1002 hPa 32s30e, Low 952 hPa 63s39e.
1. Cold Front: 31s20w 35s16w 40s13w 45s09w 50s09w 51s20w into 47s20w.
2. Cold Front: 45s44e 48s50e 50s55e 55s58e 60s55e 63s50e into 63s39e.
AREA FORECAST:
==============
ASCENSION (06S/15S, 00E/20W):
WIND : SE to E 10 to 20.
VIS : Good, but moderate in showers.
ANGOLA (06S/15S, 00E/00N):
WIND : S to SE 10 to 20, but SW 05 to 15 in the extreme east.
VIS : Good.
ST HELENA (15S/30S, 00E/20W):
WIND : E to SE 15 to 25 in the north and extreme south-west,
otherwise N to NE 10 to 20.
VIS : Moderate in showers and rain.
TRADES (15S/30S, 00E/WEST COAST):
WIND : S to SE 20 to 30 reaching 35 in the south-east.
VIS : Good.
SEA STATE: 3.0 to 4.0m in the south, reaching 4.5 to 5.0m in the south-
east, with S to SE swell.
TRISTAN (30S/40S, 00E/20W):
WIND : NE 05 to 15 in the north-east, otherwise N to NW 15 to 25. It
will be variable 05 to 10 in the west from mid-period.
VIS : Good but moderate to poor in showers and rain in the north-
west and central parts.
SEA STATE: 3.5 to 4.5m in the west, reaching 5.0 to 6.0m in the south-
west until mid-period, with W to NW swell, becoming SW swell
from mid-period.
CAPE WEST (30S/40S, 00E/20E):
WIND : S to SE 20 to 30 reaching 35 to 40 in the north-east. It will
be anticyclonic 05 to 15 in the south.
VIS : Good, but moderate in showers and thundershowers in the north-
east at first.
SEA STATE: 3.5 to 4.5m in the north-east, reaching 5.0 in the extreme
north-east, with S to SE swell.
CAPE EAST (32.5S/40S, 20E/50E):
WIND : N to NW 20 to 30 in the east until mid-period, otherwise S to
SW 20 to 30, reaching 35 to 40 in the north-east from mid-
period. It will be E to SE 20 to 30 in the north-west,
moderating from mid-period.
VIS : Good, but moderate to poor in showers and thundershowers in
the north-west and south-east becoming good from the west from
mid-period, while spreading to the north-east towards end of
the period.
SEA STATE: 3.0 to 4.0m, reaching 4.5 to 5.0m in the north-west and east
from mid-period, with S to SW swell.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : Cyclonic 20 to 30 in the extreme west, otherwise N to NE 20 to
30. It will become S to SE 25 to 35 in the south-west and
extreme south from mid-period.
VIS : Good, but moderate in showers and thundershowers in the
extreme west spreading eastwards from mid-period.
SEA STATE: 3.0 to 4.0m, reaching 4.5m in the west, with S to SW swell.
MOZAMBIQUE CHANNEL:
WIND : N to NE 15 to 25, but variable 05 to 10 in the east.
VIS : Good but moderate in rain in the extreme north until mid-period.
MADAGASCAR EAST (10S/25S, EAST COAST/55E):
WIND : E to SE 10 to 20, but NE 10 to 20 in the south.
VIS : Moderate in showers.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : SW to W 20 to 30 reaching 35 to 40 in the south from mid-
period.
VIS : Moderate in rain and showers, but in rain and snow-showers in
the south.
SEA STATE: 3.5 to 4.5m, but 5.5 to 6.5m in the south reaching 7.0 to 7.5m
in the extreme south from mid-period, 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)
26/09/03 AT 1600UTC
AVERAGED WIND SPEED ON BEAUFORT SCALE. (WIND GUSTS MAY BE ABOUT 40%
STRONGER THAN THE AVERAGES GIVEN HERE).
PART 1: WARNING
- STRONG GALE OVER KER.- GALE OVER CRO AND WAM.
PART 2: GENERAL SYNOPSIS, 26/09/03 AT 1200UTC
- COLD FRONT AXIS 37S/57E, 38S/71E, 41S/80E, RAPIDLY MOVING
EASTWARD.- WAVING FRONT AXIS 39S/53E, 41S/48S, 39S/44E, 36S/34E,
32S/29E, RAPIDLY MOVING SOUTH-EASTWARD.
PART 3: FORECAST FOR 24 HOURS FROM 26/09/03 AT 1800UTC TO 26/09/04
AT 1800UTC
WAM (30S/40S, 50E/65E)
FRONTAL RAIN, SHOWERS AND SQUALLS. SCATTERED SHOWERS ELSEWHERE.
WIND: INCREASING GRADUALLY NW 6/7 FROM SOUTH-WEST, AT TIMES 8 OVER
SOUTHERN, BUT 4/5 OVER NORTH-EASTERN AT FIRST. BACKING SW 6/7 OVER
FAR SOUTH-WESTERN AT END. GUSTS.
SEA : ROUGH TO VERY ROUGH, CROSSED IN THE VICINITY OF THE FRONT, BUT
MODERATE OVER NORTH-EASTERN. LONG SW SWELL AROUND 3M, ABATING.
VISI: POOR OR VERY POOR IN PRECIPITATION.
AMS (30S/40S, 65E/80E)
SLIGHT FRONTAL RAIN AND SHOWERS.
WIND: VARIABLE 2/4, BUT SW 5/6 OVER FAR SOUTH-EASTERN AT FIRST.
INCREASING SOON NW 5/6 OVER SOUTHERN AT TIMES 7. GUSTS.
SEA : MODERATE TO ROUGH, BUT VERY ROUGH OVER FAR SOUTHERN BY LONG SW
SWELL INCREASING 4 TO 5M.
VISI: MODERATE IN PRECIPITATION.
CRO (40S/50S, 50E/65E)
FRONTAL RAIN, SHOWERS AND SQUALLS. SNOWY SHOWERS OVER
SOUTH-WESTERN.
WIND: NORTH-WESTERLY 5/6 BUT 7/8 IN THE VICINITY OF THE
FRONT, BACKING WESTERLY 5/6 BEHIND INCREASING 7/8 AT END.
SEA : ROUGH TO VERY ROUGH, AT TIMES HIGH OVER SOUTHERN. LONG
SOUTH-WESTERLY SWELL 3 TO 5M FROM NORTH TO SOUTH.
VISI: POOR OR VERY POOR IN PRECIPITATION.
KER (40S/50S, 65E/80E)
SHOWERS, SNOWY OVER SOUTHERN, THEN FRONTAL RAIN, SHOWERS AND SQUALLS
LATER.
WIND: WESTERLY 6/7 BUT 8/9 OVER SOUTH-EASTERN, DECREASING SOON
5/6 FROM WEST. INCREASING LATER NORTH-WESTERLY 7/8 OVER NORTHERN AT
TIMES 9, BUT 5/6 OVER FAR SOUTHERN. SEVERE GUSTS.
SEA : VERY ROUGH TO HIGH, BUT VERY HIGH OVER FAR SOUTH-EASTERN AT FIRST.
LONG SW SWELL INCREASING 5 TO 6M, LOCALLY 7 M.
VISI: POOR OR VERY POOR IN PRECIPITATION.