WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE
04th 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 041000 TO 051000 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 EAST: S to SE 35 to 40 in the south-west at first.
2. MARION FORTIES EAST: NE 35 in the north-west.
SYNOPTIC CHART 06:00Z
=====================
High 1042 hPa 47s36e
Low 1010 hPa 33s30e, 1005 hPa 43s07w
1. Cold Front: 21s27w 24s20w into 27s14w
2. Cold Front: 32s21w 36s15w 40s09w into 43s07w
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 10 in the east.
VIS : Good.
ST HELENA (15S/30S, 00E/20W):
WIND : N to NW 05 to 15 in the south-east, otherwise NE to E 10 to
20, but S to SW 15 to 25 in the south-west spreading to the
south during the second half of the period.
VIS : Good, but moderate in showers and thundershowers in the south-
west, spreading to the south-east towards the end of the
period.
TRADES (15S/30S, 00E/WEST COAST):
WIND : S to SE 10 to 20, but E to NE 10 to 20 in the south-west.
VIS : Good.
SEA STATE: 3.0 to 3.5m except in the south-west with S to SW swell.
TRISTAN (30S/40S, 00E/20W) :
WIND : NW 20 to 30 in the east, otherwise S to SW 15 to 25
spreading to the east during the second half of the period.
VIS : Good in the south-west and north-east at first, otherwise
moderate to poor in showers and thundershowers drifting
eastwards to the extreme north-east by the end of the period.
SEA STATE: 3.0m in the east at first with NW swell, otherwise 4.0 to
4.5m in the south-west spreading eastwards, with W to SW
swell.
CAPE WEST (30S/40S, 00E/20E):
WIND : N to NW 20 to 30 in the west at first becoming south-west in
the extreme south-west by the end of the period, otherwise S
to SE 10 to 20 in the east becoming variable 05 to 10 in the
second half of the period.
VIS : Good, but moderate to poor in showers and rain in the south-
west.
SEA STATE: 4.0m in the east with SE swell, becoming 3.0 to 4.0 in the
south-west during the second half of the period with NW swell.
CAPE EAST (32.5S/40S, 20E/50E):
WIND : S to SE 20 to 30 in the south-west reaching 35 to 40 at
first, otherwise E to NE 25 to 35.
VIS : Good but moderate to poor in showers and thundershowers in the
west.
SEA STATE: 3.5m in the north-east at first, otherwise 4.0 to 6.0m
reaching 7.0m in places in the south-west at first, with E to
SE swell.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : E to NE 15 to 25 in the west, becoming S to SW
10 to 20 in the extreme south-west towards the end of the
period, otherwise S to SE 10 to 20 reaching 20 to 30 in the
south-east towards the end of the period.
VIS : Good but moderate to poor in showers and thundershowers in the
south-west.
SEA STATE: 3.0 to 4.0m in the south-west spreading to the south during
the second half of the period with SE swell.
MOZAMBIQUE CHANNEL:
WIND : Variable 05 to 10 become N to NE 15 to 25 in the south-west
towards mid-period.
VIS : Good.
MADAGASCAR EAST (10S/25S, EAST COAST/55E):
WIND : SE 10 to 20, but variable 05 to 10 in the south.
VIS : Moderate in showers and thundershowers in places.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : Anticyclonic 05 to 15 reaching 20 to 25 in the south-east
otherwise, E to NE 25 to 35 in the north-west.
VIS : Good, but moderate in showers and thundershowers in the north-
west.
SEA STATE: 3.0 to 3.5m with SW swell, reaching 4.0 to 5.0m in the north-
west, with E to NE swell.
AREA 2:
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MARINE METEOROLOGICAL BULLETIN FROM METEO-FRANCE/LA REUNION ON AREA ACK (AMSTERDAM-CROZET-KERGUELEN)
26/06/04 AT 0500UTC
AVERAGED WIND SPEED ON BEAUFORT SCALE. (WIND GUSTS MAY BE ABOUT 40% STRONGER THAN THE AVERAGES GIVEN HERE).
PART 1: WARNING
- STRONG GALE FORCE 9 OVER KER.
PART 2: GENERAL SYNOPSIS, 26/06/04 AT 0000UTC
- SQUALL LINES AXIS 30S/60E, 34S/61E, 35S/62E, 39S/63E.
- HIGH 1027 HPA NEAR 33S/77E MOVING EASTWARD.
- HIGH 1035 HPA NEAR 47S/37E.
- COLD FRONT CF AXIS 41S/64E, 42S/66E, 42S/69E, 43S/75E.
PART 3: FORECAST FOR 24 HOURS FROM 26/06/04 AT 0600UTC TO 26/06/05 AT 0600UTC
WAM (30S/40S, 50E/65E)
SQUALLS SOMETIMES THUNDERY OVER EASTERN AREA ASSOCIATED WITH THE CONVERGENCE
LINE.
WIND : INCREASING S TO SE 5 TO 6 SOMETIMES 7 WITH STRONG GUSTS.
SEA: MODERATE TO ROUGH. S TO SW SWELL 2 TO 3 M.
VISIBILITY : POOR UNDER PRECIPITATION.
AMS (30S/40S, 65E/80E)
THUNDERY SQUALLS AND SHOWERS ASSOCIATED WITH THE CONVERGENCE LINE.
WIND : NW 4 TO 5 AHEAD CONVERGENCE LINE BACKING S 6 TO 7 BEHIND.
SEA : MODERATE TO ROUGH LOCALLY VERY ROUGH. S TO SW SWELL 2 TO 4 METERS.
VISIBILITY : POOR TO VERY POOR UNDER PRECIPITATIONS.
CRO (40S/50S, 50E/65E)
SCATTERD SHOWERS OVER EASTERN AREA.
WIND : S 5 TO 6 SOMETIMES 7 WITH GUSTS, BECOMING ANTICLOCKWISE 4 TO 5 BY WESTERN AREA.
SEA : MODERATE TO ROUGH. SW SWELL 2 TO 3 METERS.
VISIBILITY : POOR UNDER PRECIPITATIONS.
KER (40S/50S, 65E/80E)
FRONTAL RAIN AND SHOWERS UNDER CF
WIND : BACKING S TO SW 6 TO 8 LOCALLY 9 BEHIND CF.
SEA : ROUGH TO VERY ROUGH. SW SWELL 3 TO 5 METERS.
VISIBILITY : POOR UNDER PRECIPITATIONS.=