WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE
29TH OF MAY 2026 AT 16:30 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 292200 TO 302200 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-
central parts towards mid-period.
2. CAPE WEST: NW to N 35 in the south-west towards the end of the
period.
3. MARION FORTIES EAST: NW 35 in the south-west drifting to the south-
east from mid-period
SYNOPTIC CHART 12:00Z
=====================
High 1022 hPa 42s35e
Low 1009 hPa 34s36e
1. Cold front: 27s28w 32s22w 39s18w into 36s26w
2. Cold Front: 42s03w 47s07e 52s18e 58s25e into 59s11e
AREA FORECAST:
==============
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 SW 05 to 10 in the east.
VIS : Good.
ST HELENA (15S/30S, 00E/20W):
WIND : N to NW 15 to 25 in the south, otherwise SE to E 05 to 15,
while becoming SW 15 to 25 in the south-west from mid-period.
VIS : Good, but moderate to poor in showers and thundershowers in
the south-west drifting to the south-central parts by mid-
period.
SEA STATE: 3.0 to 4.0m in the south-western and south-central parts, with
W to SW swell.
TRADES (15S/30S, 00E/WEST COAST):
WIND : S to SE 10 to 20, but variable 05 to 10 in the south-west.
VIS : Good.
TRISTAN (30S/40S, 00E/20W) :
WIND : S to SW 20 to 30 in the south-west drifting to the central
parts while reaching 35 to 45 towards mid-period, otherwise NW
to W 15 to 25 reaching 30 in the north.
VIS : Good, but moderate to poor in showers and thundershowers
clearing in the south-west towards the end of the period.
SEA STATE: 3.5 to 4.5m reaching 5.0 to 5.5m in the central parts towards
the end of the period, with NW to W swell, but SW to S in the
south-west.
CAPE WEST (30S/40S, 00E/20E):
WIND : Anticyclonic 05 to 15 in the north-east, otherwise NW to N 20
to 30 reaching 35 in the south-west towards the end of the
period.
VIS : Good, but moderate to poor in showers and thundershowers in
the south clearing in the south-east from mid-period.
SEA STATE: 3.0 to 4.0m reaching 4.5 to 5.0m in the south-west towards the
end of the period, with W to NW swell.
CAPE EAST (32.5S/40S, 20E/50E):
WIND : NE to E 10 to 20 in the west, otherwise S to SE 10 to 20
reaching 25 to 30 in the south-eastern parts, but variable 05
to 10 in the north-east.
VIS : Good, but moderate to poor in showers and thundershowers in
the eastern parts.
SEA STATE: 3.0 to 4.0m subsiding in the west from mid-period, with SW to
S swell.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : SW to S 05 to 15 in the west, otherwise variable 05 to 10, but
NE to E 10 to 20 in the south-east.
VIS : Good, but moderate to poor in showers and thundershowers in
places in the eastern and southern parts.
SEA STATE: 3.0m in the south, with S to SW swell.
MOZAMBIQUE CHANNEL:
WIND : S to SE 10 to 20 in the south, but SW 05 to 15 in the north.
VIS : Good, but moderate in showers and rain in places in the south.
MADAGASCAR EAST (10S/25S, EAST COAST/55E):
WIND : Variable 05 to 10 in the south, otherwise E to SE 10 to 20.
VIS : Good, but moderate in showers and rain in west and north
becoming poor in thundershowers in the south-west by the end
of the period.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : Anticyclonic 05 to 15 in the north until mid-period, otherwise
NW 20 to 30 reaching 35 in the south-west drifting to the
south-east from mid-period. It will become SW 15 to 25 in the
south-west from mid-period.
VIS : Good, but moderate in showers and rain in the south with
possible snow-showers in the south-west until mid-period.
SEA STATE: 3.5 to 4.5m reaching 5.0 to 6.0m in the south, with W to SW
swell but NW in the south-west.
AREA 2:
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MARINE METEOROLOGICAL BULLETIN FROM METEO-FRANCE/LA REUNION ON AREA ACK (AMSTERDAM-CROZET-KERGUELEN)
26/05/29 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.
PART 2: GENERAL SYNOPSIS, 26/05/29 AT 1200UTC
High 1034 over AMS at first, and high 1032 over CRO at end. Between
these 2 cells Cold front CF 38S/40E, 40S/44E, 41S/50E, 44S/60E, 47S/65E, 50S/68E, 41S/70E, 60S/78E.
PART 3: FORECAST FOR 24 HOURS FROM 26/05/29 at 1800UTC to 26/05/30
at 1800UTC
WAM (30S/40S, 50E/65E)
Rain, showers and squalls over southern (CF).
WIND: Anticlockwise 3/5 increasing SE 5/6 over southern.
SEA: Moderate to rough.
VIS: Poor or very poor in precipitation.
AMS (30S/40S, 65E/80E)
Rain over southwestern later (CF).
WIND: Anticlockwise 3/5 but NW 6 over far southern.
SEA: Moderate to rough.
VIS: Good becoming poor to very poor over southwestern.
CRO (40S/50S, 50E/65E)
Rain and showers over northeastern (CF).
WIND: South-westerly 4/6 becoming anticlockwise 3/5 later, increasing
NW 7/8 over southern at end.
SEA: Rough over northern, very rough over southern. SW swell 3 to
5 m over southern.
VIS: Poor to very poor in precipitation.
KER (40S/50S, 65E/80E)
Rain or showers (CF).
WIND: NW 6/7 decreasing SW 4/5.
SEA: Rough to very rough. NW swell 2 to 4 m then SW swell 3 to 5 m
over southwestern at end.
VIS: Poor to very poor in precipitation.