WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE
23rd OF JANUARY 2026 AT 15:30 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 232200 TO 242200 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. MARION FORTIES EAST: W to SW 35 to 40 in places in the south-east at
first, while NW to N 35 to 45 reaching 50 in the western half from
mid-period.
2. TRISTAN: SW to W 35 to 40 in the south-east until mid-period.
3. CAPE WEST: SW to W 35 to 45 in the south.
4. CAPE EAST: SW to W 35 to 40 in the south-west.
SYNOPTIC CHART 06:00Z
=====================
High 1024 hPa 32s17w
Low 956 hPa 55s47e
1. Cold Front: 40s47e 47s53e 49s48e into 54s45e.
AREA FORECAST:
==============
ASCENSION (06S/15S, 00E/20W):
WIND : SE to E 10 to 20.
VIS : Good.
ANGOLA (06S/15S, 00E/00N):
WIND : S to SE 05 to 15, but SW 05 to 15 in the extreme east at
first.
VIS : Good.
ST HELENA (15S/30S, 00E/20W):
WIND : E to SE 05 to 15.
VIS : Moderate in showers and rain in places in the south.
TRADES (15S/30S, 00E/WEST COAST):
WIND : S to SE 05 to 15 reaching 20 to 30 in the east at first.
VIS : Good.
SEA STATE: 3.0m in the south-east, with S to SE swell.
TRISTAN (30S/40S, 00E/20W):
WIND : Anticyclonic 05 to 15 in the north, otherwise SW to W 15 to 25
reaching 30 to 40 in the south-east until mid-period.
VIS : Good, but moderate in showers and rain in places in the south
until mid-period.
SEA STATE: 3.0m in the extreme south, subsiding in the south-west from
mid-period, with SW to S swell.
CAPE WEST (30S/40S, 00E/20E):
WIND : S to SE 05 to 15 the north, otherwise SW to W 20 to 30
reaching 35 to 45 in the south.
VIS : Good, but moderate in rain in the south until towards the end
of the period.
SEA STATE: 3.0 to 4.0m except in the north-west, with SW to S swell.
CAPE EAST (32.5S/40S, 20E/50E):
WIND : W to SW 15 to 25 in the western half reaching 30 to 40 in the
south-west, but anticyclonic 05 to 15 in the eastern half.
VIS : Good, but moderate to poor in showers and thundershowers in
places in the east, but moderate in showers and rain in the
south-west.
SEA STATE: 3.0 to 4.0m reaching 4.5 to 5.0m in the south-west at first,
with S to SW swell.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : NE to N 20 to 30 in the extreme east, otherwise variable 05 to
10, becoming SE to S 10 to 20 in the central and western north
from mid-period.
VIS : Good, but moderate to poor in showers and thundershowers in
the east.
SEA STATE: 3.0 to 4.0m in the south-west spreading to the northern and
eastern parts from mid-period, with otherwise S to SW swell.
MOZAMBIQUE CHANNEL:
WIND : SE to S 05 to 15 reaching 20 to 25 from mid-period in the
south, otherwise NW to W 10 to 20.
VIS : Good, but moderate to poor in showers and thundershowers
in the northern parts and south-east towards the end of the
period.
MADAGASCAR EAST (10S/25S, EAST COAST/55E):
WIND : NW to W 10 to 20 in the extreme north, otherwise NE to N 05 to
15 reaching 20 to 30 in the extreme east.
VIS : Moderate to poor in showers and thundershowers.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : W to SW 20 to 30 reaching 35 to 40 in places in the extreme
south at first, moderating to 10 to 20 in the north-east from
mid-period, while becoming NW to N 25 to 35 in the western
half reaching 40 to 50 in places from mid-period.
VIS : Good, but moderate in showers and rain in the west from mid-
period.
SEA STATE: 4.0 to 5.0m moderating 3.0 to 4.0m from 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)
26/01/23 AT 1400UTC
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, 26/01/23 AT 1200UTC
- COLD FRONT OVER WESTERN CRO THEN SOUTH-WESTERN WAM LATER MOVING
EASTWARD.
- HIGH AREA 1027 OVER WAM AND AMS WITH A RIDGE TOWARD SOUTHERN KER
AHEAD OF THE FRONT AND ANOTHER ONE BEHIND OVER CRO AT END.
PART 3: FORECAST FOR 24 HOURS FROM 26/01/23 AT 1800UTC TO 26/01/24
AT 1800UTC
WAM (30S/40S, 50E/65E)
SHOWERS AND SQUALLS IN NORTH, AT TIMES THUNDERY MOVING SOUTHWARD
LATER.
WIND: ANTICLOCKWISE 2 OR 3, BECOMING NORTHERLY 4 OR 5 FROM WEST,
BACKING SOUTHERLY 3 TO 4 BEHIND.
SEA: MODERATE OR ROUGH.
VISIBILITY: POOR IN PRECIPITATION.
AMS (30S/40S, 65E/80E)
SHOWERS OVER WESTERN AT THE END.
WIND: ANTICLOCKWISE 3 TO 4, AT TIME 5.
SEA : MODERATE OR ROUGH.
VISIBILITY: POOR IN PRECIPITATION.
CRO (40S/50S, 50E/65E)
FRONTAL RAIN OR SHOWERS.
WIND: NORTHWESTERLY INCREASING 6 OR 7, DECREASING W 4 OR 5 SOON.
GUSTS.
SEA : MODERATE OR ROUGH, BECOMING VERY ROUGH AIN SOUTH.
VISIBILITY: POOR IN PRECIPITATION.
KER (40S/50S, 65E/80E)
RAIN OR SHOWERS, LATER OVER WESTERN.
WIND: ANTICLOCKWISE 3 TO 4 LOCALLY 5 IN WEST AND EAST, SETTING UP
NORTHERLY 4 TO 6 BY WESTERN LATER.
SEA : MODERATE TO ROUGH, VERY ROUGH IN SOUTH-WESTERN.
VISIBILITY: POOR IN PRECIPITATION.