WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE
05th OF JUNE 2026 AT 13:30 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 052200 TO 062200 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: W to NW 35 in the south-east at first.
2. CAPE EAST: NE to E 35 in places in the east, but Cyclonic 35 to 40 in
the south-central parts at first.
3. MARION FORTIES EAST: NE to N 35 to 40 in the west and central parts.
SYNOPTIC CHART 12:00Z
=====================
High 1018 hPa 34s17e, High 1038 hPa 49s48e
Low 972 hPa 60s08e, Low 1008 hPa 43s26e
1. Cold Front: 31s01e 44s12e 59s15e 64s05e into 60s08e.
AREA FORECAST:
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ASCENSION (06S/15S, 00E/20W):
WIND : SE to E 05 to 15.
VIS : Good.
ANGOLA (06S/15S, 00E/00N):
WIND : S to SE 05 to 15, but SW 05 to 15 in the east.
VIS : Good.
ST HELENA (15S/30S, 00E/20W):
WIND : Anticyclonic 05 to 15, but Cyclonic 15 to 25 in the south,
drifting to the south-east from mid-period.
VIS : Good, but moderate in showers and thundershowers in the south
and west.
SEA STATE: 3.0 to 3.5m in the south, with S to SW swell.
TRADES (15S/30S, 00E/WEST COAST):
WIND : Anticyclonic 05 to 15, becoming NW 15 to 25 in the south-west
by the end of the mid-period.
VIS : Good, but moderate in showers and rain in the extreme south-
west.
SEA STATE: 3.0m in the extreme south-west, with S to SW swell.
TRISTAN (30S/40S, 00E/20W) :
WIND : Variable 05 to 10 in the north, otherwise W to NW 15 to 25
reaching 30 in places in the south.
VIS : Good in the north, but moderate in showers and rain.
SEA STATE: 3.0 to 4.0m reaching 4.5 to 5.5m in the south, with SW swell.
CAPE WEST (30S/40S, 00E/20E):
WIND : Variable 05 to 10 in the extreme north-east and north-west,
otherwise W to NW 15 to 25 reaching 30, but 35 in the south-
east at first.
VIS : Good, but moderate in showers and thundershowers in the west
and south-east.
SEA STATE: 3.0 to 4.0m, except in the north-east, reaching 4.5 to 5.5m in
the south, with SW swell but NW swell in the south-east.
CAPE EAST (32.5S/40S, 20E/50E):
WIND : SW 15 to 25 in the central parts reaching 30, but NW 15
to 25 in the west from mid-period, otherwise NE to E 20 to 30
reaching 35 in places in the east, but Cyclonic 20 to 30 in
the south-central parts reaching 35 to 40 at first.
VIS : Good in the extreme east and north-west from mid-period,
otherwise moderate to poor in showers and thundershowers.
SEA STATE: 4.0 to 5.0m reaching 6.0m in the central parts and the south-
east, with E to NE swell, but S to SE swell in the west.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : SE 15 to 25 in the south-east at first and in the west,
otherwise E to NE 15 to 25 reaching 30 in places.
VIS : Good in the extreme west towards mid-period, otherwise
moderate to poor in showers and thundershowers.
SEA STATE: 3.0 to 4.0m reaching 4.5 to 5.0m in the south until mid-
period, with E to SE swell.
MOZAMBIQUE CHANNEL:
WIND : N to NE 10 to 20 in the west reaching 25 to 30 in places in the
south-west, becoming SW 10 to 20 in the south-west towards the end
of the period, otherwise variable 05 to 10.
VIS : Good, but moderate in showers and thundershowers in the south-
west.
MADAGASCAR EAST (10S/25S, EAST COAST/55E):
WIND : E to NE 15 to 25 in the south, otherwise SE 10 to 20.
VIS : Good, but moderate in showers and rain in places in the west
and south.
SEA STATE: 3.0 to 4.0m in the south, with SE swell.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : Anticyclonic 05 to 15 in the east at first, otherwise
NE to N 20 to 30 reaching 35 to 40 in the west and central
parts, becoming W to NW 20 to 30 in the west by the end of the
period.
VIS : Good, becoming moderate to poor in the west by mid-period.
SEA STATE: 3.5 to 4.5m, except in the east, reaching 5.0 to 6.0m in the
north-west, with NE swell but NW swell in the extreme east.
AREA 2:
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MARINE METEOROLOGICAL BULLETIN FROM METEO-FRANCE/LA REUNION ON AREA ACK (AMSTERDAM-CROZET-KERGUELEN)
2026/06/05 AT 0500UTC
AVERAGED WIND SPEED ON BEAUFORT SCALE. (WIND GUSTS MAY BE ABOUT 40% STRONGER THAN THE AVERAGES GIVEN HERE).
PART 1: WARNING
- GALE TO LOCALLY SEVERE GALE CONTINUING OR EXPECTED OVER AMS AND KER.
PART 2: GENERAL SYNOPSIS, 26/06/05 AT 0000UTC
- LOW 1010 NEAR 32S/68E OVER NORTHWEST OF AMS WITH ASSOCIATED COLD FRONT SOUTHEASTWARDS, MOVING EASTWARDS AND FILLING.
- STRONG SOUTHWEST FLOW OVER KER, BECOMING AT TIMES VERY STRONG.
- HIGH 1042 NEAR 46S/43E, SLOWLY MOVING NORTHEASTWARDS, EXPECTED JUST NORTH OF CROZET ISLAND AT END.
PART 3: FORECAST FOR 24 HOURS FROM 26/06/05 AT 0600UTC TO 26/06/06 AT 0600UTC
WAM (30S/40S, 50E/65E)
SCATTERED SHOWERS, MAINLY OVER NORTH.
WIND: SOUTHEASTERLY 5 OR 6, LOCALLY 7 IN NORTHEAST, DECREASING SOON GRADUALLY
4 OR 5. GUSTS.
SEA : ROUGH OR VERY ROUGH IN S SWELL 3 OR 4 M, DECREASING MODERATE IN
SOUTHWEST.
VIS : POOR OR VERY POOR IN PRECIPITATION.
AMS (30S/40S, 65E/80E)
RAIN, SHOWERS AND THUNDERSQUALLS.
WIND: CLOCKWISE 6 OR 7, AT TIMES 8 WITH SEVERE GUSTS AT FIRST, GRADUALLY
DECREASING SOUTHEAST 5 OR 6 LATER.
SEA : ROUGH OR VERY ROUGH IN S SWELL 3 TO 5 M, LOCALLY MODERATE OVER FAR
NORTH.
VIS : POOR OR VERY POOR IN PRECIPITATION.
CRO (40S/50S, 50E/65E)
FEW SHOWERS.
WIND: SOUTHERLY 5 OR 6, LOCALLY 7 IN FAR SOUTHEAST WITH GUSTS, DECREASING
ANTICLOCKWISE 3 OR 4 FROM WEST.
SEA : ROUGH OR VERY ROUGH, DECREASING MODERATE OR ROUGH OVER WEST. SW SWELL 3
TO 5 M.
VIS : MODERATE IN PRECIPITATION.
KER (40S/50S, 65E/80E)
SCATTERED RAIN AND SHOWERS.
WIND: SOUTHWEST 6 OR 7, INCREASING 7 OR 8 IN SOUTH LATER, AT TIMES 9.
SEVERE GUSTS.
SEA : VERY ROUGH, LOCALLY HIGH OVER SOUTH. SW SWELL 3 TO 5 M.
VIS : POOR IN PRECIPITATION.