WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE
09TH OF JUNE 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 091000 TO 101000 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: S to SW 35 to 45 in the south-west, drifting to the south-
east by mid-period.
2. CAPE WEST: NW to N 35 in places in the south, but cyclonic 35 to 45 in
the south-west towards the end of the period.
3. DURBAN EAST: Cyclonic 35 in places in the east.
4. MARION FORTIES EAST: NW to W 35 in the south-east until mid-period.
SYNOPTIC CHART 06:00Z
=====================
High 1022 hPa 33s14e, High 1030 hPa 37s67e
Low 1008 hPa 41s06w, Low 952 hPa 62s38e, Low 1012 hPa 41s50e, Low 1014 hPa 24s47e.
1. Cold Front: 28s16w 34s08w 41s01w into 41s06w
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 10 to 20, but variable 05 to 10 in the east.
VIS : Good.
ST HELENA (15S/30S, 00E/20W):
WIND : NW 15 to 25 in the south, drifting to the south-east from mid-
period, otherwise Anticyclonic 05 to 15, but SW 10 to 20 in
the extreme south-west, spreading to the south towards mid-
period.
VIS : Good but moderate in showers and thundershowers in the south.
SEA STATE: 3.0 to 3.5m in the south, with SW swell.
TRADES (15S/30S, 00E/WEST COAST):
WIND : S to SE 10 to 20 in the north, otherwise Anticyclonic 05 to
15.
VIS : Good, but moderate in showers in the extreme south-west by the
end of the period.
TRISTAN (30S/40S, 00E/20W) :
WIND : NW 15 to 25 in the east reaching 30 until mid-period,
otherwise S to SW 15 to 25 reaching 30 in places but 35 to 45
in the south-west, drifting to the south-east by mid-period.
VIS : Moderate to poor in showers and thundershowers, becoming good
in the north towards the end of the period.
SEA STATE: 3.0 to 4.0m reaching 4.5m in the east, with W to SW swell.
CAPE WEST (30S/40S, 00E/20E):
WIND : Anticyclonic 05 to 15 in the north-east, otherwise NW to N 15
to 25 reaching 30 to 35 in places in the south, becoming
cyclonic 20 to 30 in the south-west towards the end of the
period reaching 35 to 45.
VIS : Good, but moderate in showers and rain in the south-west,
spreading to the west from mid-period.
SEA STATE: 3.0 to 4.0m, except in the north, reaching 4.5 to 5.5m, with W
to SW swell.
CAPE EAST (32.5S/40S, 20E/50E):
WIND : NW to W 15 to 25 in the south reaching 30, otherwise
Anticyclonic 05 to 15, but S to SE 10 to 20 in the east
reaching 25 to 30 in the north-east.
VIS : Good, but moderate to poor in showers and thundershowers in
the north-east.
SEA STATE: 3.0 to 4.0m in the south-west and north-east, with SW swell,
but E to SE swell in the north-east.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : S to SW 05 to 15 reaching 25 in places, but Cyclonic 20 to 30
in the east reaching 35 in places.
VIS : Good, but moderate to poor in showers and thundershowers in
places.
SEA STATE: 3.0 to 4.0m in the east reaching 4.5m in the south-east, with
E to NE swell.
MOZAMBIQUE CHANNEL:
WIND : S to SW 10 to 20.
VIS : Good, but moderate in showers and thundershowers in the south-
east, spreading to the south-west by the end of the period.
MADAGASCAR EAST (10S/25S, EAST COAST/55E):
WIND : E to NE 05 to 15 reaching 25 to 30 in the south.
VIS : Moderate to poor in showers and thundershowers in places.
SEA STATE: 3.0 to 3.5m in the south, with NE to E swell.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : NW to W 15 to 25 reaching 30 to 35 in the south-east until
mid-period, but SW 15 to 25 in the south-west, drifting to
places in the south-east until mid-period
VIS : Good, but moderate in showers and rain in the south-west,
spreading to the south-east towards mid-period.
SEA STATE: 3.0 to 4.0m, reaching 4.5 to 5.0m in places, with W to NW
swell.
AREA 2:
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MARINE METEOROLOGICAL BULLETIN FROM METEO-FRANCE/LA REUNION ON AREA ACK (AMSTERDAM-CROZET-KERGUELEN)
2026/06/09 AT 0400UTC
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, 26/06/09 AT 0000UTC
- HIGH 1033 HPA NEAR 38S/64E MOVING EASTWARD 10 KT.
- OCCLUSION FRONT OVER CRO AND KER.
- LOW 1006 HPA DEEPENING OVER THE FAR NORTH-WESTERN WAM AT THE END.
- COLD FRONT BY SOUTH-WESTERN LATER, MOVING EASTWARD.
PART 3: FORECAST FOR 24 HOURS FROM 26/06/09 AT 0600UTC TO 26/06/10 AT 0600UTC
WAM (30S/40S, 50E/65E)
SHOWERS AND SQUALLS BY WESTERN.
WIND: ANTICLOCKWISE 3 TO 4 INCREASING GRADUALLY NORTHERLY 4 TO 6 BY WESTERN
AT FIRST. BECOMING CLPCKWISE 5/6 TEMPORARILY 7 WITH GUSTS IN VICINITY
OF LOW.
SEA : MODERATE TO LOCALLY ROUGH.
VIS : POOR UNDER PRECIPITATIONS.
AMS (30S/40S, 65E/80E)
WIND: ANTICLOCKWISE 3 TO 4 INCREASING W 5 OVER SOUTHERN.
SEA : MODERATE TO ROUGH SOON. S SWELL 2 TO 3 M.
VIS : GOOD.
CRO (40S/50S, 50E/65E)
RAIN AND FRONTAL SHOWERS.
WIND: WESTERLY OR NW 4 TO 6 AT TIMES 7 WITH GUSTS BACKING W 5/6 BY WESTERN AT
THE END.
SEA : OFTEN ROUGH LOCALLY VERY ROUGH LATER BY SOUTH-WESTERN BY W SWELL 4 M.
VIS : POOR IN PRECIPITATIONS.
KER (40S/50S, 65E/80E)
FRONTAL SHOWERS.
WIND: W 5 TO 6 LOCALLY 7 WITH GUSTS.
SEA : ROUGH TO VERY ROUGH. SW SWELL 4 M AT FIRST ABATING.
VIS : POOR IN PRECIPITATIONS.