WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE
03RD OF JUNE 2026 AT 17:00 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 032200 TO 042200 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 and west, but N to NE 35 to
40 in the central parts towards the end of the period.
2. MARION FORTIES EAST: SE to E 35 to 40 in the north-west, where it will
become NE 35 to 40 towards the end of the period.
SYNOPTIC CHART 12:00Z
=====================
High 1041 hPa 46s25e
Low 945 hPa 66s05w, Low 1013 hPa 36s35e
1. Cold Front: 26s18w 35s10w 40s05w 50s04e 55s10e into 66s05w
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 W to 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.
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 15 to 25, becoming E to NE 10 to 20 in the south-west
towards mid-period.
VIS : Good.
SEA STATE: 3.0 to 3.5m in the south-east until towards the end of the
period, 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 reaching
30 in the south, but SE 15 to 25 in the north-west.
VIS : Moderate to poor in showers and thundershowers, becoming good
in the west towards the end of the period.
SEA STATE: 3.0 to 4.0m in the western and southern halves, reaching 5.0m
in the south, with W to SW swell.
CAPE WEST (30S/40S, 00E/20E):
WIND : N to NW 20 to 30 in the south-west, otherwise S to SE 15 to 25
reaching 30 in the east until towards the end of the period.
VIS : Good, but moderate in showers and rain in the east, but in the
south-west towards mid-period.
SEA STATE: 3.5 to 4.5m in the east with S to SE swell, but in the south-
west towards the end of the period with W to NW swell.
CAPE EAST (32.5S/40S, 20E/50E):
WIND : S to SE 20 to 30, reaching 35 to 40 in the south and west, but
N to NE 15 to 25 in the central parts, where it will reach 30
to 40 towards the end of the period.
VIS : Moderate to poor in showers and thundershowers.
SEA STATE: 3.5 to 4.5m in the western half, reaching 5.0 to 6.0m in the
south and extreme north-west, with SE swell.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : Variable 05 to 10, but E to NE 10 to 20 in the west, where it
will reach 25 to 30 towards mid-period. It will become S to SW
10 to 20 in the extreme south-west towards the end of the
period.
VIS : Moderate to poor in showers and thundershowers but good in the
north-west until mid-period.
SEA STATE: 3.0 to 4.0m in the south-west towards mid-period, with SE
swell.
MOZAMBIQUE CHANNEL:
WIND : S to SE 10 to 20 in the north, otherwise variable 05 to 10 but N
to NE 15 to 25 in the south-west.
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 in the south, otherwise SE to E 15 to 25
reaching 30 to 40 in the north-west, where it will become NE
30 to 40 towards the end of the period.
VIS : Good, but moderate in showers and thundershowers in the north.
SEA STATE: 3.0 to 3.5m with SW swell, reaching 4.0 to 6.0m 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)
26/06/03 AT 1600UTC
AVERAGED WIND SPEED ON BEAUFORT SCALE. (WIND GUSTS MAY BE ABOUT 40%
STRONGER THAN THE AVERAGES GIVEN HERE).
PART 1: WARNING
- STRONG GALE EXPECTED OVER KER.
PART 2: GENERAL SYNOPSIS, 26/06/03 AT 1200UTC
- SQUALL LINES OVER WAM EXTENDING NORTH-SOUTH.
- HIGH-PRESSURE SYSTEM AT 1031 HPA OVER AMS MOVING EASTWARD.
- DEEPENING LOW-PRESSURE SYSTEM, FORECAST TO REACH 997 HPA NEAR
42S/80E AT 18 UTC ON THURSDAY, JUNE 4.
- DEEPENING LOW-PRESSURE SYSTEM OVER AMS AT THE END OF THE FORECAST
PERIOD, EXPECTED TO REACH 1010 HPA NEAR 32S/66E AT 18 UTC ON
THURSDAY, JUNE 4.
PART 3: FORECAST FOR 24 HOURS FROM 26/06/03 AT 1800UTC TO 26/06/04
AT 1800UTC
WAM (30S/40S, 50E/65E)
OCCASIONAL THUNDERSTORMS WITH STRONG GUSTS MOVING EASTWARD,
ASSOCIATED WITH THE CONVERGENCE LINE.
WIND : NORTH TO NORTHEAST 4 TO 5, OCCASIONALLY 6 OVER EASTERN, SOON
EASING TO VARIABLE 2 TO 4 FROM THE WEST, THEN FRESHENING SOUTH TO
SOUTHWEST 5 TO 6, OCCASIONALLY 7 WITH STRONG GUSTS OVER SOUTHERN
BEHIND A NEW COLD FRONT DURING THE DAY.
SEA: MODERATE TO ROUGH, SOUTH-SOUTHWESTERLY SWELL 2 TO 3 M, CROSSED
WITH A ROUGH WIND SEAS OVER SOUTHERN AREA.
VISIBILITY : POOR DURING PRECIPITATION.
AMS (30S/40S, 65E/80E)
SCATTERED SHOWERS FOLLOWED BY RAIN AND FRONTAL SHOWERS WITH A NEW
COLD FRONT.
WIND : ANTICLOCKWISE 2 TO 4, VEERING NORTH-WESTERLY 4 TO 5 OVER
WESTERN AHEAD OF THE NEW FRONT, BACKING SOUTHERLY 6/7 BEHIND IT.
SEA : MODERATE TO ROUGH, SOUTH-SOUTH-WESTERLY SWELL 2 TO 3 M,
CROSS-SWELL WITH HIGH WIND SEAS OVER SOUTHERN AREA.
VISIBILITY : POOR DURING RAINFALL.
CRO (40S/50S, 50E/65E)
RAIN AND SHOWERS, BECOMING LESS FREQUENT TOWARDS THE END.
WIND : SOUTHERLY 5 TO 6, OCCASIONALLY 7, WITH STRONG GUSTS, BECOMING
4 TO 6 FROM THE WEST OVER WESTERN AREAS TOWARDS THE END.
SEA : MODERATE TO ROUGH, TEMPORARILY VERY ROUGH OVER SOUTHERN.
SOUTH-WESTERLY SWELL OF 3 TO 4 METRES, COMBINED WITH HIGH WIND SEAS.
VISIBILITY : POOR DURING RAINFALL.
KER (40S/50S, 65E/80E)
SHOWERS, OCCASIONALLY STORMY WITH STRONG GUSTS, AS A NEW WARM FRONT
MOVES IN, FOLLOWED BY A NEW COLD FRONT LATER ON.
WIND : NORTH-WESTERLY 5 TO 6, BUT 6 TO 7 WITH STRONG GUSTS, VEERING
SOUTH-WESTERLY 4 TO 6, LOCALLY 7, AHEAD OF THE WARM FRONT, THEN
CLOCKWISE 6 TO 8, LOCALLY 9, OVER THE NORTHERN AREA, VEERING SOUTH 5
TO 7 ACROSS THE WHOLE AREA BY THE END OF THE FORECAST PERIOD.
SEA : ROUGH TO VERY ROUGH, BECOMING CHOPPY TO ROUGH. SOUTH-WESTERLY
SWELL 3 TO 4 METERS, COMBINED WITH HEAVY WIND-DRIVEN SEAS.
VISIBILITY : POOR UNDER RAINFALL.