WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE
03rd 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 031000 TO 041000 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. TRISTAN: N to NW 35 in the south-west at first.
3. CAPE WEST: S to SE 35 in the north-east.
4. CAPE EAST: SE 35 in the north-west until mid-period.
5. DURBAN EAST: S to SE 35 in the south-west from mid-period.
6. MARION FORTIES EAST: SW to W 35 in the south.
SYNOPTIC CHART 06:00Z
=====================
High 1038 hPa 42s03e, High 1032 hPa 30s69e.
Low 1012 hPa 31s14e, Low 956 hPa 62s41e.
1. Cold Front: 44s35e 46s41e 50s47e 53s50e 60s50e 64s40e into 62s41e.
AREA FORECAST:
==============
ASCENSION (06S/15S, 00E/20W):
WIND : SE to E 10 to 20.
VIS : Good, but moderate in showers from the second half.
ANGOLA (06S/15S, 00E/00N):
WIND : S to SE 10 to 20, but SW 05 to 15 in the extreme east until
mid-period.
VIS : Good.
ST HELENA (15S/30S, 00E/20W):
WIND : E to SE 15 to 25 but N to NE 10 to 20 in the south, becoming
SE 15 to 25 in the extreme south-west from mid-period.
VIS : Good, but 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 reaching 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,
reaching 30 to 35 in the south-west at first. It will become
variable 05 to 10 in the west from mid-period.
VIS : Good but moderate to poor in showers and rain in the west,
spreading to the central parts by mid-period, when it will
clear over the south-west.
SEA STATE: 3.0 to 4.0m in the west, reaching 5.0 to 6.0m in the south
west, but 7.0 to 8.0m in the extreme south-west until mid
period, with N to NW swell, becoming W swell from mid-period.
CAPE WEST (30S/40S, 00E/20E):
WIND : S to SE 20 to 30 reaching 35 in the north-east. It will be
anticyclonic 05 to 15 in the south-west, spreading eastwards
from mid-period.
VIS : Good, but moderate in showers and thundershowers in the north-
east.
SEA STATE: 3.0 to 4.0m in the east, reaching 4.5 to 5.5m in the north-
east, with S to SE swell.
CAPE EAST (32.5S/40S, 20E/50E):
WIND : N to NW 15 to 25 in the east reaching 30 in the south-east
from mid-period, otherwise SE 20 to 30 spreading to the south
east towards the end of the period reaching 35 in the north-
west until mid-period.
VIS : Good, but moderate to poor in showers and rain in the
south and west becoming good in the west from mid-period.
SEA STATE: 3.5 to 4.5m, reaching 5.0m in the north-west until mid-period,
with S to SW swell.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : N to NE 15 to 25 reaching 30 in the west and central north
becoming S to SE 20 to 30 in the south-west towards mid-period
reaching 35 from mid-period.
VIS : Good, but moderate in showers and rain in the south-west from
mid-period.
SEA STATE: 3.0 to 3.5m, except in the north-west, reaching 4.0 to 4.5m in
the south-west towards the end of the period, with S to SW
swell, but NE in the north-east.
MOZAMBIQUE CHANNEL:
WIND : N to NE 10 to 20, but E to SE 05 to 15 in the extreme north.
VIS : Good but moderate in rain in the extreme north.
MADAGASCAR EAST (10S/25S, EAST COAST/55E):
WIND : E to SE 10 to 20, but NE 10 to 20 in the south.
VIS : Good.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : N to NW 15 to 25 in the east at first reaching 30 in the
south-east, otherwise SW to W 15 to 25 reaching 30 to 35 in
the south.
VIS : Good, but moderate in rain and shower in the north-east and 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 south-west towards 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 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 KER.
- GALE FORCE 8 OVER CRO.
PART 2: GENERAL SYNOPSIS, 26/09/03 AT 0000UTC
- COLD FRONT AXIS: 38S/58E, 40S/63E, 42S/68E, 44S/72E, 48S/79E, MOVING RATHER QUICKLY EASTWARD.
- NEW DISTURBANCE LATER FROM WEST.
- HIGH 1032 NEAR 31S/74E, SLOW-MOVING.
- HIGH 1025 HPA NEAR 41S/47E, EXPECTED 1030 HPA NEAR 37S/77E AT END.
PART 3: FORECAST FOR 24 HOURS FROM 26/09/03 AT 0600UTC TO 26/09/04 AT 0600UTC
WAM (30S/40S, 50E/65E)
SCATTERED SHOWERS.
WIND: ANTICLOCKWISE 3 TO 5 SETTING-UP NORTH-WEST 5 TO 6 BY WESTERN SOON,
INCREASING 7 OVER SOUTH-WESTERN LATER. GUSTS.
SEA : BECOMING ROUGH, LOCALLY VERY ROUGH OVER SOUTHERN. SW SWELL 3 OR
4 M OVER SOUTHWEST, DECREASING.
VIS : POOR IN PRECIPITATION.
AMS (30S/40S, 65E/80E)
FRONTAL RAIN OR SHOWERS.
WIND: ANTICLOCKWISE 3 TO 4 OVER FAR NORTHERN. ELSEWHERE, NORTH-WEST 5 TO
6 AHEAD THE FRONT, LOCALLY 7 OVER FAR SOUTHERN, BACKING SOUTH 5 TO
6 BEHIND. ANTICLOCKWISE 3 TO 5 ALL OVER THE AREA LATER.
SEA : MODERATE OR ROUGH, AT TIMES VERY ROUGH IN FAR SOUTHEAST. SW SWELL 3
OR 4 M OVER SOUTHERN, LOCALLY 5 M OVER SOUTH-EASTERN AT END.
VIS : POOR IN PRECIPITATION.
CRO (40S/50S, 50E/65E)
SHOWERS AND SQUALLS.
WIND: ANTICLOCKWISE 3 TO 4 OVER NORTHERN, WESTERLY 5 TO 7 ELSEWHERE.
DURING THE NIGHT, CLOCKWISE 5 TO 7 BY NORTH-WESTERN, INCREASING
LOCALLY 8 AT END ( MOVING SOUTH-EASTWARD QUICKLY). SEVERE GUSTS.
SEA : ROUGH OR VERY ROUGH, BUT VERY ROUGH OR HIGH IN SOUTH. WESTERLY
SWELL 4 OR 5 M, OCCASIONALLY 6 IN SOUTH.
VIS : POOR TO VERY POOR IN PRECIPITATION.
KER (40S/50S, 65E/80E)
FRONTAL RAIN OR SHOWERS.
WIND: NORTHWEST 6 OR 7, AHEAD THE FRONT, BACKING SOUTH-WEST 7 TO 8
BEHIND, INCREASING LOCALLY 9 OVER FAR SOUTHERN SOON. SEVERE GUSTS.
NORTH-WEST 6 TO 7 BY WESTERN AT END.
SEA : VERY ROUGH OR HIGH, LOCALLY VERY HIGH IN FAR SOUTH. SW SWELL 4 TO 5
M , OCCASIONALLY 6 M.
VIS : VERY POOR IN PRECIPITATION.