WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE
04th OF AUGUST 2026 AT 13:30 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 042200 TO 052200 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 over the central and south-eastern parts, otherwise
SW 35 in the south until mid-period.
2. CAPE EAST : N to NW 35 in the extreme south-west.
SYNOPTIC CHART 12:00Z
=====================
High 1029 hPa 39s34w, High 1032 hPa 32s65e.
Low 1022 hPa 33s42e Low 1018 hPa 33s16e, Low 1002 hPa 39s02e
Low 950 hPa 60s02e, Low 942 hPa 63s26e
1. Cold Front: 41s20w 45s05w 56s04e into 60s02e
2. Cold Front: 44s16e 54s29e 61s38e 65s24e into 63s26e.
AREA FORECAST:
==============
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 : Anti-cyclonic 05 to 10 over the north-east, otherwise S to SE 05
to 15 in the north, but SW 10 to 20 in the south-east.
VIS : Good.
SEA STATE: 3.0 to 4.0m, except in the north-west, with SW swell.
TRADES (15S/30S, 00E/WEST COAST):
WIND : Variable in the central and southern parts, otherwise S to SE 05
to 10, but W to NW 05 to 10 in the extreme south.
VIS : Good.
SEA STATE: 3.0 to 3.5m in the south-west from mid-period, with SW swell.
TRISTAN (30S/40S, 00E/20W):
WIND : Anticyclonic 05 to 10 in the north-west, otherwise S to SW 15 to
25, reaching 30 in the east at first.
VIS : Good but moderate in showers and rain in the south at first.
SEA STATE: 3.5 to 4.5m, but 5.0m in the south-east from mid-period,
with S to SW swell.
CAPE WEST (30S/40S, 00E/20E):
WIND : NW to W to 15 to 25 in the east, reaching 30 to 35 over the
central and south-eastern parts, otherwise SW 15 to 25, reaching
30 to 35 in the south until mid-period.
VIS : Good but moderate in showers and rain across the north-west,
central parts and the south-east, spreading to the east by mid-
period.
SEA STATE: 3.0 to 4.0m in the south-west, reaching 4.5 to 5.5m in the
extreme south-west from mid-period, with W to SW swell.
CAPE EAST (32.5S/40S, 20E/50E):
WIND : Cyclonic 05 to 15 in the north-east, otherwise N to NW 15 to 25,
reaching 30 to 35 in the extreme south-west.
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 5.5 in the extreme
south-west from mid-period, with SW swell.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : N to NE 10 to 20 in the east and south-west, otherwise variable 05
to 10.
VIS : Good, but moderate in showers in the east at first.
MOZAMBIQUE CHANNEL:
WIND : Variable 05 to 10 in the south-west, otherwise 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 : Cyclonic 05 to 10 in the north-east, otherwise NE to N 15 to 25,
reaching 30 in the south-west.
VIS : Good becoming moderate in showers and rain in places in the south
At first.
SEA STATE: 3.0 to 4.0m in the west, 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)
26/08/04 AT 0500UTC
AVERAGED WIND SPEED ON BEAUFORT SCALE. (WIND GUSTS MAY BE ABOUT 40%
STRONGER THAN THE AVERAGES GIVEN HERE).
PART 1: WARNING
- GALE RUNNING OVER KER.
PART 2: GENERAL SYNOPSIS, 26/08/04 AT 0000UTC
- CONVERGENCE LINE WITH SQUALLS OVER WAM.
- HIGH 1034 NEAR 34S/68E, SLOWLY MOVING NORTHWARDS, GENERALIZING OVER
ALL AREAS AT THE END.
- COLD FRONT OVER NORTHERN KER THEN SOUTHERN AMS AT THE END.
PART 3: FORECAST FOR 24 HOURS FROM 26/08/04 AT 0600UTC TO 26/08/05 AT
0600UTC
WAM (30S/40S, 50E/65E)
SHOWERS, LOCALLY THUNDERY.
WIND: NORTHERLY 3 OR 4, BECOMING VARIABLE 1 TO 3 SOON.
SEA : MODERATE.
VIS : POOR IN PRECIPITATION.
AMS (30S/40S, 65E/80E)
FEW SHOWERS BECOMING MORE FREQUENT OVER SOUTHERN AT THE END.
WIND: ANTICLOCKWISE 2 TO 4 BUT WESTERLY 5 OR 6 OVER SOUTHERN AT TIMES
7 WITH GUSTS OVER SOUTH-EASTERN AT THE END.
SEA : MODERATE TO VERY ROUGH FROM NW TO SE, LOCALLY HIGH OVER
SOUTH-EASTERN. SSW SWELL 3 TO 5 METERS.
VIS : POOR IN PRECIPITATION.
CRO (40S/50S, 50E/65E)
SCATTERED SHOWERS, LOCALLY SNOWY.
WIND: WESTERLY 4 OR 5 OVER NORTHERN, 6 OR 7 OVER SOUTHERN, GRADUALLY
BECOMING ANTICLOCKWISE 2 TO 4 BY WESTERN OVER NORTHERN AND NW 5 TO 6
OVER SOUTHERN.
SEA : MODERATE TO VERY ROUGH FROM NW TO SE. SW SWELL 3 TO 5 METERS
ABATING.
VIS : POOR IN PRECIPITATION.
KER (40S/50S, 65E/80E)
SCATTERED SHOWERS, LOCALLY SNOWY.
WIND: WESTERLY 6 TO 8 WITH GUSTS FROM NORTH TO SOUTH, BECOMING
ANTICLOCKWISE 3 TO 5 BY WESTERN AT NORTH AND W 5 TO 6 LOCALLY 7 OVER
SOUTHERN AT SOUTH.
SEA : ROUGH TO HIGH FROM NW TO SE. SW SWELL 4 TO 6 METERS.
VIS : POOR TO VERY POOR IN PRECIPITATIONS.=