WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE
23rd OF JANUARY 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 231000 TO 241000 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 NW 35 to 40 in places in the south-east at first.
SYNOPTIC CHART 06:00Z
=====================
High 1027 hPa 32s12w
Low 940 hPa 52s43e,
1. Cold Front: 40s44e 44s47e 49s48e into 52s43e.
AREA FORECAST:
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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.
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 25 in the east.
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 NW to W 10 to
20, but SW 10 to 20 in the south-west spreading to the south-
east from mid-period.
VIS : Good, but moderate in showers and rain in places in the south
from mid-period.
SEA STATE: 3.0m in the extreme south from mid-period, with SW to S swell.
CAPE WEST (30S/40S, 00E/20E):
WIND : S to SE 05 to 15 the north, otherwise W to SW 15 to 25
reaching 30 in places in the extreme south at times.
VIS : Good, but moderate in rain in the south from mid-period.
SEA STATE: 3.0 to 4.0m, reaching 4.5 to 5.0m in the south-eat at first,
with SW to S swell.
CAPE EAST (32.5S/40S, 20E/50E):
WIND : N to NW 20 to 30 in the east until mid-period, otherwise
W to SW 15 to 25 reaching 30 in the south-west from mid-
period.
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 towards the end of the period.
SEA STATE: 4.0 to 5.0 in the western half reaching 5.5 to 6.0 in the
south at first, but 3.0 to 4.0m in the east by mid-period,
with S to SW swell.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : NE to N 15 to 25 in the extreme east, otherwise SE to S 05 to
15 reaching 20 to 30 in the north-west at first.
VIS : Good, but moderate to poor in showers and thundershowers in
the east and south-west.
SEA STATE: 3.0 to 4.0m in the south-west but 3.0m in the north-east until
mid-period, with NE to N swell in the north-east otherwise S
to SW swell.
MOZAMBIQUE CHANNEL:
WIND : SW to S 15 to 25 in the south at first, becoming SE to S 05 to
15, otherwise NW to W 05 to 15.
VIS : Good, but moderate to poor in showers and thundershowers
in the northern parts.
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 in the extreme east.
VIS : Moderate to poor in showers and thundershowers.
SEA STATE: 3.0m, in the south-east until mid-period, with NE to N swell.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : W to NW 20 to 30 reaching 35 to 40 in places in the south-west
at first moderating to 10 to 20 in the north from mid-period.
It will become NW 10 to 20 in the north-west by the end of the
period.
VIS : Good, but moderate to poor in showers and thundershowers in
places, with possible drifting snow in the south at first.
SEA STATE: 5.0 to 6.0m moderating 4.0 to 5.0m 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)
2026/01/23 AT 0500UTC
AVERAGED WIND SPEED ON BEAUFORT SCALE. (WIND GUSTS MAY BE ABOUT 40%
STRONGER THAN THE AVERAGES GIVEN HERE).
PART 1: WARNING
- GALE CONTINUING OR EXPECTED OVER CRO AND KER.
PART 2: GENERAL SYNOPSIS, 26/01/23 AT 0000UTC
- LOW 967 NEAR 51S/83E, RAPIDLY MOVING EASTWARDS.
- LOW 976 NEAR 49S/40E, MOVING SOUTHEASTWARDS. ASSOCIATED COLD FRONT
CROSSING CRO.
- HIGH AREA 1025 OVER WAM AND AMS.
PART 3: FORECAST FOR 24 HOURS FROM 26/01/23 AT 0600UTC TO 26/01/24 AT
0600UTC
WAM (30S/40S, 50E/65E)
SHOWERS AND SQUALLS IN NORTH, AT TIMES THUNDERY.
WIND: ANTICLOCKWISE 2 OR 3, BECOMING NORTHERLY 4 OR 5 FROM WEST, AT
TIMES 6 IN SOUTH.
SEA: MODERATE OR ROUGH.
VIS: POOR IN PRECIPITATION.
AMS (30S/40S, 65E/80E)
SHOWERS IN NORTH.
WIND: ANTICLOCKWISE 3 TO 5 , AT TIME 6 IN SOUTHEAST.
SEA: MODERATE OR ROUGH, LOCALLY VERY ROUGH IN FAR SOUTH.
VIS: POOR IN PRECIPITATION.
CRO (40S/50S, 50E/65E)
FRONTAL RAIN OR SHOWERS.
WIND: NORTHWESTERLY INCREASING 6 OR 7, TEMPORARILY 8 IN SOUTHWEST,
DECREASING WEST 5 OR 6 LATER. SEVERE GUSTS.
SEA: MODERATE OR ROUGH, BECOMING VERY ROUGH AND CROSSED IN SOUTHWEST.
VIS: POOR IN PRECIPITATION.
KER (40S/50S, 65E/80E)
RAIN OR SHOWERS, AT FIRST IN EAST, THEN IN WEST AT END.
WIND: IN NORTHEAST : SOUTHWEST 7 OR 8, GRADUALLY DECREASING 5 OR 6 AND
BECOMING ANTICLOCKWISE 3 TO 5. IN SOUTHWEST : SOUTHWEST 3 OR 4,
GRADUALLY INCREASING NORTHWEST 6 OR 7 SOON. GUSTS.
SEA: ROUGH OR VERY ROUGH, LOCALLY HIGH AT FIRST IN EAST, DECREASING
MODERATE OR ROUGH IN NORTH SOON.
VIS: POOR IN PRECIPITATION.