WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE
11th OF OCTOBER 2026 AT 16:00 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 112200 TO 122200 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: N to NW 35 in the south-east at first.
2. MARION FORTIES EAST: W to NW 35 in the south-east at first, but NE 35 in the extreme south-west from mid-period, spreading to the central south towards end of the period.
SYNOPTIC CHART 12:00Z
=====================
High 1028 34s23w, High 1032 hPa 39s49e.
Low 992 hPa 46s06e, Low 1012 hPa 34s26e.
1. Cold Front: 27s03w 34s04e 39s06e into 46s06e.
AREA FORECAST:
==============
ASCENSION (06S/15S, 00E/20W):
WIND : S to SE 05 to 15.
VIS : Good.
ANGOLA (06S/15S, 00E/00N):
WIND : S to SW 05 to 15, but SE 10 to 15 in the south-west.
VIS : Good, becoming moderate in showers and thundershowers in the
extreme east until mid-period.
ST HELENA (15S/30S, 00E/20W):
WIND : E to SE 10 to 20, but anticyclonic 05 to 15 in the south.
VIS : Good.
SEA STATE: 3.0m in the extreme south-east until mid-period, with S to SW
swell.
TRADES (15S/30S, 00E/WEST COAST):
WIND : S to SW 10 to 20, becoming SE 05 to 15 in the west towards
mid-period.
VIS : Good but moderate in showers and rain in the south-east.
TRISTAN (30S/40S, 00E/20W):
WIND : W to SW 20 to 30, becoming N to NW 20 to 30 in the north-west
towards mid-period.
VIS : Good but moderate in showers and rain in the east and south.
It will become moderate to poor in showers and thundershowers
in the west towards end of the period.
SEA STATE: 3.0 to 4.0m, except in the north-west, reaching 4.5m in the
extreme south-east from mid-period, with SW swell.
CAPE WEST (30S/40S, 00E/20E):
WIND : N to NW 20 to 30, reaching 35 in the south-east at first,
while SW to W 20 to 30 in the west, spreading eastwards during
the first half of the period. It will become NW 20 to 30 in
the south-west from mid-period.
VIS : Moderate to poor in showers and rain, becoming good in the
west from mid-period, but moderate in showers and rain in the
south-west towards end of the period.
SEA STATE: 3.0 to 4.0m in the south and western parts, reaching 4.5m in
the extreme south-west towards end of the period, with W to SW
swell.
CAPE EAST (32.5S/40S, 20E/50E):
WIND : N to NE 20 to 30. It will become W to NW 20 to 30 in the west
in the first half of the period, becoming SW 10 to 20 towards
end of the period.
VIS : Good but moderate to poor in showers and thundershowers in the
central parts as well as in the west from mid-period.
SEA STATE: 3.0 to 4.0m in the central and southern parts, with N to NE
swell, but W to NW swell in the extreme south-western.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : E to NE 15 to 25, reaching 30 in the south-west and central
north.
VIS : Good, becoming moderate in showers and rain in the north-east
in the second half of the period.
SEA STATE: 3.0 to 4.0m in the south-west and in the central north, with
NE to E swell.
MOZAMBIQUE CHANNEL:
WIND : S to SE 15 to 25, becoming variable 05 to 10 towards mid-
period.
VIS : Good but moderate in showers and thundershowers over the
northern parts in the first half of the period.
MADAGASCAR EAST (10S/25S, EAST COAST/55E):
WIND : E to SE 15 to 25, but NE 05 to 15 in the extreme south-west.
VIS : Moderate in showers and rain.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : W to NW 20 to 30, reaching 35 in the south-east at first,
becoming NE 20 to 30 in the south-west from mid-period,
reaching 35 in the extreme south-west, spreading to the
central south towards end of the period.
VIS : Moderate to poor in showers and thundershowers.
SEA STATE: 3.0 to 4.0m reaching 4.5 to 5.0m in the south-east until mid
period, with W to SW swell, but NW in the north-west.
AREA 2:
======
MARINE METEOROLOGICAL BULLETIN FROM METEO-FRANCE/LA REUNION ON AREA
ACK (AMSTERDAM-CROZET-KERGUELEN)
26/10/11 AT 1600UTC
AVERAGED WIND SPEED ON BEAUFORT SCALE. (WIND GUSTS MAY BE ABOUT 40%
STRONGER THAN THE AVERAGES GIVEN HERE).
PART 1: WARNING
- GALE EXPECTED OVER CRO AND KER.
PART 2: GENERAL SYNOPSIS, 26/10/11 AT 1200UTC
- COLD FRONT AXIS 33S/55E, 35S/64E, 40S/72E, 45S/80E, MOVING
NORTHEASTWARDS.- NEW FRONTAL AREA GOING OVER CRO THEN KER AT END, DUE
TO LOW 978 MOVING QUICKLY ALONG 55S.- HIGH 1031 NEAR 39S/48E, MOVING
NORTHEAST AND EXPECTED VERY SOON OVER WAM.
PART 3: FORECAST FOR 24 HOURS FROM 26/10/11 AT 1800UTC TO 26/10/12
AT 1800UTC
WAM (30S/40S, 50E/65E)
FRONTAL RAIN OR SHOWERS, EVACUATING.WIND: NORTHWEST 4 OR 5, BUT SOUTH
5 OR 6 BEHIND THE FRONT, BECOMING ANTICLOCKWISE 3 TO 5 FROM
SOUTHWEST, INCREASING LOCALLY 6 IN FAR SOUTH LATER. GUSTS.SEA:
MODERATE OR ROUGH, BECOMING LOCALLY VERY ROUGH AT END IN FAR
SOUTH.VISI: POOR IN PRECIPITATION.
AMS (30S/40S, 65E/80E)
FRONTAL RAIN OR SHOWERS, EVACUATING FROM NORTHEAST.WIND: NORTHWEST 5
OR 6, BACKING SOUTHERLY BEHIND THE FRONT WHILE INCREASING AT TIMES 7
WITH SEVERE GUSTS.SEA: MODERATE, BECOMING ROUGH FROM SOUTH, THEN
LOCALLY VERY ROUGH AT END IN FAR SOUTH.VISI: POOR IN PRECIPITATION.
CRO (40S/50S, 50E/65E)
RAIN OR SHOWERS.WIND: SOUTHWEST 5 OR 6, INCREASING SOON NORTHWEST 6
OR 7, AT TIMES 8 WITH SEVERE GUSTS.SEA: ROUGH OR VERY ROUGH, LOCALLY
HIGH IN SOUTH. SW SWELL 5 OR 6 M IN SOUTH.VISI: POOR IN
PRECIPITATION.
KER (40S/50S, 65E/80E)
RAIN OR SHOWERS, AT TIMES SNOWY IN SOUTH.WIND: SOUTHWEST 5 OR 6, AT
TIMES 7, BUT NORTHWEST AT FIRST IN FAR NORTHEAST, INCREASING NORTHWES
7 OR 8 AT END. SEVERE GUSTS.SEA: ROUGH, BECOMING VERY ROUGH OR HIGH
IN FAR SOUTHWEST. SWSWELL 5 OR 6 IN WEST SOON.VISI: POOR IN
PRECIPITATION.=