WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE
03rd OF AUGUST 2026 AT 17:30 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 032200 TO 042200 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 places over the central parts from the morning,
spreading to the east from mid-period.
2. CAPE WEST: W to NW 35 in places in the south-west from mid-period,
spreading to the south from the evening.
SYNOPTIC CHART 12:00Z
=====================
High 1027 hPa 26s25w, High 1036 34s67e.
Low 1014 hPa 27s02e, Low 1015 hPa 32s41e, Low 981 hPa 56s48e, Low 943 hPa 54s07e.
1. Cold Front: 40s26e 44s34e 47s43e 50s50e into 56s48e.
2. Cold Front: 36s26w 38s15w 42s06w 45s01e 49s09e into 54s07e.
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 10 to 20 but variable 05 to 10 in the east.
VIS : Good.
ST HELENA (15S/30S, 00E/20W):
WIND : W to NW 15 to 25 in the south, otherwise anti-cyclonic 05 to 15.
VIS : Good, becoming moderate in showers and rain in the south towards
the end of the period.
SEA STATE: 3.0 to 4.0m in the central and eastern parts, as well as in the
south from mid-period, while subsiding over the central and
eastern parts, with S to SW swell.
TRADES (15S/30S, 00E/WEST COAST):
WIND : S to SE 05 to 15, becoming W to NW 15 to 25 in the south-west
towards the end of the period.
VIS : Good.
SEA STATE: 3.0 to 4.0m in the west at first, with SW swell.
TRISTAN (30S/40S, 00E/20W):
WIND : W to NW 20 to 30, reaching 35 in places over the central parts
from the morning, spreading to the east from mid-period, but S to
SW 15 to 25 in the south, spreading to the west from the morning
and central parts from mid-period.
VIS : Good but moderate to poor in showers and rain in the west and
southern half, spreading to the east towards the end of the
period.
SEA STATE: 3.5 to 4.5m, reaching 5.0 to 5.5m in the south at first, with S to
SW swell.
CAPE WEST (30S/40S, 00E/20E):
WIND : Variable 05 to 10 in the north, otherwise W to NW 15 to 25,
but 30 in places in the south-west, reaching 35 from mid-period,
spreading to the south from the evening.
VIS : Good but moderate in showers and rain in the south and south-
west.
SEA STATE: 3.5 to 4.5m in the west, south and south-west, reaching 5.0m in
the south and south-west towards the end of the period, with W to
SW swell.
CAPE EAST (32.5S/40S, 20E/50E):
WIND : Variable 05 to 10 in the south-east and extreme west, but S to SE
05 to 15 in the east, otherwise N to NE 15 to 25.
VIS : Good but moderate in showers and thundershowers in the east and
north-east.
SEA STATE: 3.0 to 4.0m, in the south-west towards the end of the period, with
SW swell.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : N to NE 15 to 25 in the east and south-west, otherwise variable 05
to 10.
VIS : Good, but moderate to poor in showers and thundershowers in places
in the east.
SEA STATE: 3.0m in the east until mid-period, with E to NE swell.
MOZAMBIQUE CHANNEL:
WIND : N to NW 05 to 15 in the south-east at first, otherwise S to SE 05
to 15.
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 south and east until mid-period, with SE swell.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : Variable 05 to 10 in the north and central parts, otherwise W to
NW 15 to 25, spreading to the central parts from mid-period,
reaching 30 in places in the south-west at times.
VIS : Good becoming moderate in showers and rain in places in the south-
west towards the end of the period.
SEA STATE: 3.0 to 4.0m in the central and southern parts, reaching 4.5 to
5.0m in the south-east until 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)
26/08/03 AT 1600UTC
AVERAGED WIND SPEED ON BEAUFORT SCALE. (WIND GUSTS MAY BE ABOUT 40%
STRONGER THAN THE AVERAGES GIVEN HERE).
PART 1: WARNING
- STRONG GALE EXPECTED OVER KER SOON.
- GALE EXPECTED OVER SOUTHERN CRO LATER.
PART 2: GENERAL SYNOPSIS, 26/08/03 AT 1200UTC
- CONVERGENCE LINE WITH SQUALLS OVER NORTHWESTERN WAM DUE TO A LOW
OVER WESTERN WAM'S AREA.
- HIGH 1036 NEAR 34S/68E, SLOWLY MOVING NORTHWARDS, EXPECTED 1032
OVER NORTHERN AMS AT END.
- COLD FRONT EXPECTED OVER KER, AXIS 46S/71E - 50S/80E THE 04TH AT
12UTC, RAPIDLY MOVING NORTHEASTWARDS.
PART 3: FORECAST FOR 24 HOURS FROM 26/08/03 AT 1800UTC TO 26/08/04
AT 1800UTC
WAM (30S/40S, 50E/65E)
SHOWERS, LOCALLY THUNDERSTORM OVER WESTERN.
WIND: N 3 OR 4, LOCALLY 5, BECOMING VARIABLE 1 TO 3, LOCALLY 4 LATER.
GUSTS IN SQUALLS.
SEA : MODERATE TO ROUGH, BECOMING MODERATE.
VISI: POOR IN PRECIPITATION.
AMS (30S/40S, 65E/80E)
FEW SHOWERS.
WIND: ANTICLOCKWISE 2 TO 4 BUT SW 5 OR 6 OVER SOUTHEASTERN,
INCREASING W 5 OR 6 OVER SOUTHERN LATER. GUSTS.
SEA : ROUGH TO VERY ROUGH, LOCALLY HIGH OVER SOUTHEASTERN AT FIRST,
BECOMING MODERATE TO VERY ROUGH FROM NW TO SE. SSW SWELL 3 TO 5
METERS.
VISI: GOOD.
CRO (40S/50S, 50E/65E)
SCATTERED SHOWERS, LOCALLY SNOW.
WIND: W 4 OR 5 OVER NORTHERN, 6 OR 7, LOCALLY 8 OVER SOUTHERN,
GRADUALLY BECOMING ANTICLOCKWISE 2 TO 4 FROM WEST LATER. GUSTS.
SEA : MODERATE TO VERY ROUGH FROM NW TO SE, BECOMING LOCALLY HIGH OVER
SOUTHERN SOON. ARRIVAL OF A SW SWELL 3 TO 5 METERS FROM SOUTH LATER.
VISI: POOR IN PRECIPITATION.
KER (40S/50S, 65E/80E)
SCATTERED SHOWERS, LOCALLY SNOW.
WIND: W 5 TO 7 FROM NORTH TO SOUTH, INCREASING SOON 6 OR 7 OVER
NORTHERN AND 7 OR 8, LOCALLY 9 OVER SOUTHERN, THEN BACKING LATER SW
THEN S 7 OR 8, LOCALLY 9 BEHIND THE FRONT, DECREASING S 3 TO 5 OVER
WESTERN AT END. SEVERE GUSTS.
SEA : ROUGH TO HIGH FROM NW TO SE. SW SWELL 4 TO 6 METERS.
VISI: POOR TO VERY POOR IN PRECIPITATIONS.