WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE
02nd 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 021000 TO 031000 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: N to NW 35 to 40 in the south-west from mid-period.
2. CAPE WEST: Cyclonic 35 to 40 over the central parts and north-east
from mid-period.
3. CAPE EAST: E to SE 35 to 40 in the west towards the end of the period.
4. MARION FORTIES EAST : NW to W 35 to 40 in the south-west spreading to
the south-east from mid-period becoming SW 35 in
the south-west during the second half of the
period.
SYNOPTIC CHART 06:00Z
=====================
High 1030 hPa 37s11w, High 1035 hPa 30s70e.
Low 1018 hPa 31s31e, Low 964 hPa 54s59e.
1. Cold Front: 40s40e 44s55w 49s63e into 54s59e.
AREA FORECAST:
==============
ASCENSION (06S/15S, 00E/20W):
WIND : SE to E 15 to 20.
VIS : Good.
ANGOLA (06S/15S, 00E/00N):
WIND : SE 10 to 20, but S to SW 05 to 10 in the north-east.
VIS : Good.
ST HELENA (15S/30S, 00E/20W):
WIND : E to SE 15 to 25 becoming NE 10 to 20 in the west from mid-
period.
VIS : Good, but moderate in rain in places.
TRADES (15S/30S, 00E/WEST COAST):
WIND : S to SE 15 to 25 reaching 30 in the south.
VIS : Good but moderate in rain in the central parts and the south-
east.
SEA STATE: 3.0m in the central and southern parts, with S to SW swell.
TRISTAN (30S/40S, 00E/20W):
WIND : S to SE 15 to 25 over the eastern half, reaching 30 in the
south-east at first, and N to NE 20 to 30 over the western
half becoming N to NW 30 to 40 in the south-west from mid-
period.
VIS : Good but moderate in showers and rain in the western parts.
SEA STATE: 3.0 to 3.5m in the south-east at first, becoming 3.0 to 4.0m
in the west from mid-period, reaching 4.5 to 5.5m in the
south-west from the second half of the period, with N swell.
CAPE WEST (30S/40S, 00E/20E):
WIND : W to SW 15 to 25 in the western parts for the first half of
the period, reaching 30 in the south-west, otherwise S to SE
10 to 20 but cyclonic 30 to 40 over the central parts and
north-east from mid-period.
VIS : Moderate in showers and rain in the western half, spreading to
the eastern parts from mid-period.
SEA STATE: 3.0 to 4.0m except in the north-west, reaching 4.0 to 6.0m in
the north-east from mid-period, with W to SW swell.
CAPE EAST (32.5S/40S, 20E/50E):
WIND : N to NW 10 to 20 in the east but variable 10 to 20 in the
south-west and central parts, otherwise E to SE 15 to 25 over
the southern and western parts, reaching 30 to 40 in the west
towards the end of the period.
VIS : Moderate in showers and thundershowers in places and at times.
SEA STATE: 3.0 to 4.0m, spreading to the north-east from mid-period,
while reaching 4.5 to 5.0m in the south with W to SW swell.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : S to SE 10 to 15 in the extreme south-west for the first half
of the period, otherwise, N to NE 15 to 25.
VIS : Good.
SEA STATE: 3.0 to 3.5m in the south-west spreading to the southern and
central parts from the second half of the period, with SW
swell.
MOZAMBIQUE CHANNEL:
WIND : E to NE 05 to 15 in the south-west, otherwise S to SE 05 to 15.
VIS : Good but moderate in rain in the north from the second half of the
period.
MADAGASCAR EAST (10S/25S, EAST COAST/55E):
WIND : E to SE 15 to 25, but E to NE 10 to 20 in the south.
VIS : Moderate in showers and rain in places.
SEA STATE: 3.0m except in the south, with E to SE swell.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : Anti-cyclonic 10 to 15 in the north, otherwise W to SW 25 to
30, but NW to W 30 to 40 in the south-west spreading to the
south-east from mid-period. It will become SW 25 to 35 in the
south-west during the second half of the period.
VIS : Moderate in showers and rain in the north-east at first,
otherwise snow showers over the southern parts.
SEA STATE: 4.0 to 5.0m in the north, otherwise 5.0 to 7.0m, with SW
swell.
AREA 2:
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MARINE METEOROLOGICAL BULLETIN FROM METEO-FRANCE/LA REUNION ON AREA ACK (AMSTERDAM-CROZET-KERGUELEN)
26/09/02 AT 0400UTC
AVERAGED WIND SPEED ON BEAUFORT SCALE. (WIND GUSTS MAY BE ABOUT 40% STRONGER THAN THE AVERAGES GIVEN HERE).
PART 1: WARNING
- GALE FORCE 8 OVER SOUTHERN CRO AND SOUTHERN KER.
PART 2: GENERAL SYNOPSIS, 26/09/02 AT 0000UTC
- LOW 960 HPA NEAR 54S/51E WITH COLD FRONT CF ASSOCIATED AND AXIS 39S/38E, 41S/45E, 45S/57E, 52S/63E MOVING EASTWARD 20 KT.- HIGH 1033 HPA NEAR 30S/74E, SLOW-MOVING.
PART 3: FORECAST FOR 24 HOURS FROM 26/09/02 AT 0600UTC TO 26/09/03 AT 0600UTC
WAM (30S/40S, 50E/65E)
SCATTERED SHOWERS THEN FRONTAL RAIN AND SHOWERS UNDER CF OVER SOUTHERN AREA AT END.
WIND : W TO NW 4 OR 5.
SEA : MODERATE TO ROUGH BECOMING VERY ROUGH OVER SOUTHERN AREA. SW
SWELL 2 TO 4 METERS FROM NORTH TO SOUTH.
VIS : POOR IN PRECIPITATION.
AMS (30S/40S, 65E/80E)
SCATTERED SHOWERS.
WIND : NW 4 OR 5 OVER SOUTHERN AREA, BUT ANTICLOCKWISE 2 TO 3 OVER
NORTHERN AREA.
SEA : MODERATE TO ROUGH LOCALLY VERY ROUGH. SW SWELL 2 TO 3 METERS.
VIS : POOR IN PRECIPITATION.
CRO (40S/50S, 50E/65E)
FRONTAL RAIN AND SHOWERS UNDER CF.
WIND : NW 4 OR 5, INCREASING 6 OR 7 AHEAD CF BACKING W TO SW 6 TO 7
LOCALLY 8 BEHIND CF. GUSTS.
SEA : BECOMING ROUGH TO VERY ROUGH LOCALLY HIGH OVER SOUTHERN AREA. SW
SWELL 4 TO 6 METERS.
VIS : VERY POOR IN PRECIPITATION.
KER (40S/50S, 65E/80E)
FRONTAL RAIN AND SHOWERS UNDER CF.
WIND : NW 6 TO 7 AHEAD CF BACKING W 6 TO 7 LOCALLY 8 BEHIND CF. GUSTS.
SEA : ROUGH TO VERY ROUGH. SW THEN NW SWELL 3 TO 4 METERS.
VIS : POOR OR VERY POOR IN PRECIPITATION.