WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE
05th OF AUGUST 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 051000 TO 061000 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. CAPE WEST: NW to W 35 to 40 over the south-eastern parts until mid-period.
2. CAPE EAST : NW to N 35 to 40 in the south-west until mid-period.
SYNOPTIC CHART 06:00Z
=====================
High 1027 hPa 34s19w, High 1034 hPa 38s63e.
Low 983 hPa 49s21e Low 1013 hPa 37s24e.
1. Cold Front: 31s03e 35s09e 39s14e 44s18e into 49s21e
AREA FORECAST:
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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.
VIS : Good.
ST HELENA (15S/30S, 00E/20W):
WIND : S to SE 05 to 15 in the north, becoming SW 10 to 20 in the south-
west towards the end of the period.
VIS : Good.
SEA STATE: 3.0 to 4.0m in the south-east, with SW swell.
TRADES (15S/30S, 00E/WEST COAST):
WIND : S to SE 05 to 10, but W to NW 05 to 10 in the south-east until
mid-period.
VIS : Good.
SEA STATE: 3.0 to 4.0m in the south-west, with SW swell.
TRISTAN (30S/40S, 00E/20W):
WIND : Anticyclonic 05 to 10 in the north-west spreading to the north-
east, otherwise S to SW 15 to 25, but NW 10 to 20 in the south-
west, where it will be reaching 25 from mid-period, while
spreading to the north-west and south-west it will be 25 to 30 by
end of period.
VIS : Good but moderate in showers and rain in the south-west towards
end of period.
SEA STATE: 3.5 to 4.5m, but 5.0m in the south-east, with S to SW swell.
CAPE WEST (30S/40S, 00E/20E):
WIND : NW to W 15 to 25 in the east, reaching 30 to 40 over the
south-eastern parts until mid-period, otherwise W to SW 20 to 30,
becoming S to SE 10 to 20 in the north-west while spreading to the
north-east towards the end of period.
VIS : Good but moderate in showers and rain across the north-west,
central parts and the south-east, spreading to the east while
clearing from the west by mid-period.
SEA STATE: 3.0 to 4.0m, reaching 4.5 to 5.5m in the south but 6.0m in the
south-east until mid-period, with W to SW swell.
CAPE EAST (32.5S/40S, 20E/50E):
WIND : NE 10 to 20 in the east, otherwise NW to N 15 to 25, reaching 30
to 40 in the south-west until mid-period, when it will become W to
SW 20 to 30 in the west moderating toward end of the period.
VIS : Good but poor to moderate in showers and thundershowers in the
south-west.
SEA STATE: 3.0 to 4.0m in the west, reaching 4.5 to 6.0m in the extreme
south-west, with SW swell.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : N to NE 10 to 20, but S to SW 05 to 15 in the central-north.
VIS : Good, but moderate in showers in the east.
MOZAMBIQUE CHANNEL:
WIND : SE to S 05 to 10.
VIS : Good.
MADAGASCAR EAST (10S/25S, EAST COAST/55E):
WIND : N to NE 10 to 20 in the south, otherwise E to SE 15 to 25.
VIS : Moderate in showers and rain in places.
SEA STATE: 3.0m in the north-east, with SE swell.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : NW to N 15 to 25, reaching 30 in the south-west spreading to the
east it will become SW to W 20 to 30 in the west towards end of
period.
VIS : Good becoming moderate in showers and rain in the west from mid-
period.
SEA STATE: 3.0 to 4.0m in the west spreading to the east from mid-period,
while reaching 4.5 to 5.0m in the extreme 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)
26/08/05 AT 0600UTC
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 KER.
PART 2: GENERAL SYNOPSIS, 26/08/05 AT 0000UTC
- DISRUPTED FLOW IN THE EXTREME SOUTH OF CRO AND KER.
- HIGH-PRESSURE CONDITIONS ELSEWHERE.
PART 3: FORECAST FOR 24 HOURS FROM 26/08/05 AT 0600UTC TO 26/08/06 AT
0600UTC
WAM (30S/40S, 50E/65E)
WIND: ANTICLOCKWISE 2 TO 4.
SEA : MODERATE LOCALLY ROUGH OVER FAR SOUTH-EASTERN.
VIS : GOOD.
AMS (30S/40S, 65E/80E)
SHOWERS OVER EASTERN AT BEGINNING.
WIND: BECOMING ANTICLOCKWISE 2 TO 4 ALL OVER THE AREA.
SEA : MODERATE TO VERY ROUGH FROM NW TO SE. SOUTH-WESTERLY SWELL 3 TO
5 M DECREASING.
VIS : POOR IN PRECIPITATION.
CRO (40S/50S, 50E/65E)
SCATTERED SHOWERS OVER SOUTHERN.
WIND: ANTICLOCKWISE 2 TO 4 SETTING-UP NORTH-WEST 4 TO 5 OVER
SOUTHERN, LOCALLY 6 OVER FAR SOUTHERN.
SEA : MODERATE TO ROUGH, BECOMING VERY ROUGH OVER SOUTHERN. SW SWELL 3
TO 5 M OVER SOUTHERN AT END.
VIS : POOR IN PRECIPITATION.
KER (40S/50S, 65E/80E)
SHOWERS OVER SOUTHERN.
WIND: ANTICLOCKWISE 3 TO 5 OVER NORTHERN, SETTING-UP WESTERLY 6 TO 7
OVER SOUTHERN, LOCALLY 8 OVER SOUTH-EASTERN. DECREASING 4 TO 5 BY
SOUTH-WESTERN AT END.
SEA : ROUGH TO VERY ROUGH, LOCALLY HIGH OVER FAR SOUTH-EASTERN AT END.
WESTERLY TO SOUTH-WEST SWELL 4 TO 6 M OVER EASTERN, DECREASING.
VIS : POOR IN PRECIPITATION.