WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE
06TH OF AUGUST 2026 AT 16:40 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 062200 TO 072200 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: W to NW 35 in the south-east until mid-period.
2. CAPE WEST: W to NW 35 in the south, drifting to the south-east from
mid-period.
3. CAPE EAST: NW 35 in the extreme south-west from mid-period.
4. MARION FORTIES EAST: NW to W 35 in places in the south.
SYNOPTIC CHART 12:00Z
=====================
High 1028 hPa 33s04e, High 1036 hPa 39s67e.
Low 996 hPa 45s07w Low 972 hPa 63s49e.
1. Cold Front: 40s35e 50s45e 60s55e 66s61e into 63s49e.
AREA FORECAST:
==============
ASCENSION (06S/15S, 00E/20W):
WIND : E to SE 10 to 20.
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 : S to SE 05 to 15 reaching 20 in the north-east, but
Anticyclonic 05 to 15 in the south.
VIS : Good but moderate in rain in places.
TRADES (15S/30S, 00E/WEST COAST):
WIND : S to SE 10 to 20 reaching 25 to 30 in the east, but
Anticyclonic 05 to 15 in the south-west.
VIS : Good.
SEA STATE: 3.0 to 3.5m in the south and east, with SW swell.
TRISTAN (30S/40S, 00E/20W):
WIND : W to NW 15 to 25 in the south reaching 30 to 35 in the south-east
until mid-period, otherwise Anticyclonic 05 to 15.
VIS : Good but moderate in showers and rain in the south and central
parts.
SEA STATE: 3.0 to 4.0m, reaching 4.5 to 5.5m in the south-east until mid-
period, with W to SW swell.
CAPE WEST (30S/40S, 00E/20E):
WIND : W to NW 15 to 25 in the south reaching 30 to 35, drifting to
the south-east from mid-period but SE 10 to 20 in the north-
east reaching 25 at times otherwise Anticyclonic 05 to 15,
becoming SW 20 to 30 in the south-west from mid-period.
VIS : Good but moderate in showers and rain in the south, spreading
to the central parts by the end of the period.
SEA STATE: 3.5 to 4.5m reaching 5.5 to 6.5m in the south, with W to SW
swell.
CAPE EAST (32.5S/40S, 20E/50E):
WIND : Cyclonic 20 to 30 in the central parts until mid-period,
otherwise Anticyclonic 05 to 15, becoming NE to E 15 to 25 in
the west and central parts from mid-period but NW 20 to 30 in
the south-west reaching 35 in the extreme south-west from mid-
period.
VIS : Good but moderate in showers and thundershowers in places.
SEA STATE: 3.0m reaching 3.5 to 4.5m in the west, with SW swell.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : Anticyclonic 05 to 15 in the west, otherwise N to NE 10 to 20
reaching 25 in the north-east.
VIS : Good but moderate in showers in the east and in the extreme
west until mid-period.
MOZAMBIQUE CHANNEL:
WIND : SE to S 05 to 15 reaching 20 in places.
VIS : Good.
MADAGASCAR EAST (10S/25S, EAST COAST/55E):
WIND : E to SE 15 to 25, but NE 15 to 25 in the south.
VIS : Good but moderate in showers in places.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : NW to W 15 to 25 reaching 25 to 35 in places in the south,
otherwise Anticyclonic 05 to 15.
VIS : Moderate in showers and rain in places, clearing from the west
from mid-period.
SEA STATE: 3.5 to 4.5m reaching 5.0 to 5.5m in the south-west, 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)
26/08/06 AT 1600UTC
AVERAGED WIND SPEED ON BEAUFORT SCALE. (WIND GUSTS MAY BE ABOUT 40%
STRONGER THAN THE AVERAGES GIVEN HERE).
PART 1: WARNING
NIL.
PART 2: GENERAL SYNOPSIS, 26/08/06 AT 1200UTC
- LOW 961 HPA NEAR 62S/49E WITH COLD FRONT CF ASSOIATED AND AXIS
43S/38E, 48S/42S, 51S/44E, 58S/48E MOVING EASTWARD 15 KT.
- HIGH 1038 HPA NEAR 40S/68E, MOVING SLOWLY EASTWARD.
PART 3: FORECAST FOR 24 HOURS FROM 26/08/06 AT 1800UTCTO 26/08/07 AT
1800UTC
WAM (30S/40S, 50E/65E)
SCATTERED SHOWERS.
WIND: NORTHERLY 3 TO 4.
SEA : MODERATE BECOMING ROUGH OVER SOUTHERN AREA. SSW SWELL 2 METERS.
VIS : POOR UNDER PRECIPITATION.
AMS (30S/40S, 65E/80E)
SCATTERED SHOWERS.
WIND: ANTICLOCKWISE 2 TO 4.
SEA : MODERATE TO ROUGH. SSW SWELL 2 TO 3 METERS.
VIS : POOR UNDER PRECIPITATION.
CRO (40S/50S, 50E/65E)
FRONTAL RAIN AND SHOWERS UNDER CF.
WIND: NW 5 TO 6 AHEAD CF LOCALLY 7 WITH GUSTS BACKING SW 4 TO 5 BEHIND
CF.
SEA : MODERATE TO ROUGH LOCALLY VERY ROUGH OVER SOUTHERN AREA. SW SWELL 2
TO 4 METERS.
VIS : POOR IN PRECIPITATION.
KER (40S/50S, 65E/80E)
SCATTERED SHOWERS THEN FRONTAL RAIN AND SHOWERS UNDER CF OVER SOUTH-WESTERN AREA AT END.
WIND: ANTICLOCKWISE 2 TO 4 OVER NORTHERN AREA SETTLING NW 5 TO 6 LOCALLY
7 WITH GUSTS AHEAD CF.
SEA : ROUGH TO VERY ROUGH. SW SWELL 3 TO 5 METERS.
VIS : POOR IN PRECIPITATION.