WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE
13th OF OCTOBER 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 132200 TO 142200 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: N to NW 35 to 40 in the south-west, spreading to the south-
east by mid-period, moderating in the south-west during the
first half of the period.
2. CAPE EAST: N to NW 35 in the extreme south-west towards mid-period.
3. MARION FORTIES EAST: W to SW 35 in the extreme south-east at first.
SYNOPTIC CHART 12:00Z
=====================
High 1022 hPa 28s07e, High 1030 hPa 30s62e.
Low 994 hPa 37s05w, Low 1014 hPa 29s33e, Low 974 hPa 53s50e.
1. Cold front: 30s20w, 32s08w into 37s05w.
2. Cold Front: 39s41e 42s49e 45s65e 50s65e 52s56e into 53s50e.
AREA FORECAST:
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ASCENSION (06S/15S, 00E/20W):
WIND : SE to E 10 to 15.
VIS : Good.
ANGOLA (06S/15S, 00E/00N):
WIND : S to SE 10 to 15 but SW 10 to 15 in the east.
VIS : Good.
ST HELENA (15S/30S, 00E/20W):
WIND : Anticyclonic 05 to 10 over the central parts, otherwise E to
SE 10 to 15 but W to NW 15 to 25 in the south, but S to SE 05
to 15 in the extreme south-west.
VIS : Good, but moderate in showers and rain in the south-west.
SEA STATE: 3.0 to 3.5m in the extreme south-east, with W to SW swell.
TRADES (15S/30S, 00E/WEST COAST):
WIND : S to SE 15 to 25 in the north and east, otherwise anticyclonic
05 to 10 but NW 10 to 20 in the extreme south-west.
VIS : Good.
SEA STATE: 3.0 to 3.5m in the extreme south-west towards mid-period, with
SW swell.
TRISTAN (30S/40S, 00E/20W):
WIND : NW 20 to 30 in the extreme north-east, otherwise SW to W 20 to
30. It will become variable 05 to 10 in the north-west from mid-
period.
VIS : Moderate in showers and rain in the extreme north, otherwise
good. It will become moderate in showers and rain in the
south-west in the first half of the period, spreading to the
south-east during the second half.
SEA STATE: 3.0 to 4.0m, reaching 4.5 to 5.5m over the south-east until
mid-period, with W to SW swell.
CAPE WEST (30S/40S, 00E/20E):
WIND : Anticyclonic 05 to 15 in the north-east, otherwise N to NW 20
to 30, reaching 35 to 40 in the south-west, spreading to the
south-east by mid-period. It will become W to SW 15 to 25 in
the south-west during the first half of the period, but NW 20
to 30 in the south-west towards end of the period.
VIS : Moderate to poor in showers and rain, but good in the north-
east.
SEA STATE: 3.0 to 4.0m in the south and west reaching 4.5 to 5.5m in the
south-west, spreading to the south-east towards mid-period,
while reaching 6.0m in the central south in the first half of
the period, with W to NW swell, becoming SW swell in the
south-west from mid-period.
CAPE EAST (32.5S/40S, 20E/50E):
WIND : Variable 05 to 10 in the central until mid-period, otherwise N
to NW 15 to 25, reaching 30 to 35 in the extreme south-west
towards mid-period. It will be NE 15 to 25 in the north-west
where it will become 15 to 25 towards end of the period.
VIS : Good in the central and north-west, otherwise moderate to poor
in showers and rain.
SEA STATE: 3.0 to 4.0m in the south-west, while reaching 5.0 to
6.5m in the extreme south-west towards mid-period, with
mainly W to NW swell.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : N to NE 10 to 20 reaching 25 to 30 in the central north but S
to SW 10 to 20 in the extreme north-west at first.
VIS : Good, but moderate in showers and rain in the extreme west at
first.
SEA STATE: 3.0 to 3.5m in the central north, with NE swell.
MOZAMBIQUE CHANNEL:
WIND : E to NE 05 to 15, but S to SE 10 to 20 in the east where it
will become SW 05 to 15 from mid-period.
VIS : Good, but moderate in showers in the extreme north until mid-
period.
MADAGASCAR EAST (10S/25S, EAST COAST/55E):
WIND : E to SE 15 to 25 but NE 15 to 25 in the south-west.
VIS : Moderate in light showers.
SEA STATE: 3.0m, except in the south, with E to SE swell.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : W to SW 20 to 30, reaching 35 in the extreme south-east at
first, but anticyclonic 05 to 15 in the extreme north. It will
be N to NW 15 to 25 in the west, spreading to the north-west
and south-east by mid-period, reaching 30 in the extreme
south-west towards end of the period.
VIS : Good, but moderate in showers and rain in the south-west,
spreading to the extreme south-east towards mid-period.
SEA STATE: 3.0 to 4.0m, except in the extreme north, but 4.5 to 5.5m in
the south-east, reaching 6.0 to 7.0m in the extreme south-east
at first, while subsiding to 3.0 to 4.0m from the west towards
mid-period, with W to SW swell, becoming NW swell from the
west from mid-period.
AREA 2:
======
MARINE METEOROLOGICAL BULLETIN FROM METEO-FRANCE/LA REUNION ON AREA ACK (AMSTERDAM-CROZET-KERGUELEN)
26/10/13 AT 1630UTC
AVERAGED WIND SPEED ON BEAUFORT SCALE. (Wind gusts may be about 40% stronger than the averages given here).
PART 1: WARNING
- Gale running over CRO and KER.
PART 2: GENERAL SYNOPSIS, 26/10/13 AT 1200UTC
- Low 975 near 53S/46E, very rapidly moving eastsoutheastward. Warm front WF 43S/70E, 50S/65E, 52S/60E, 54S/52E. Cold Front CF 53S/51E, 50S/58E, 48S/59E, 44S/50E, 42S/40E.- High 1025 over WAM.
PART 3: FORECAST FOR 24 HOURS FROM 26/10/13 at 1800UTC to 26/10/14 at 1800UTC
WAM (30S/40S, 50E/65E)
Scattered rain over southern.
WIND : Westerly 4/6 locally 7 over far southern at first, becoming
variable 2/4 at end.
SEA : moderate, rough over southeastern by SW swell 2 to 4 m.
VIS : good, moderate in precipitations.
AMS (30S/40S, 65E/80E)
Few showers over far southern.
WIND : Westerly 6/7 from north to south.
SEA : rough to very rough over northern, very rough to high over
southern. SW swell 2 to 4 m.
VIS : good.
CRO (40S/50S, 50E/65E)
Scattered rain over northern.
WIND : Westerly 7/8 decreasing 4/6 at end. Severe gusts.
SEA : very rough to high. W to SW swell increasing 4 to 6 m.
VIS : poor in precipitation.
KER (40S/50S, 65E/80E)
Frontal rain or snow (WF, CF) then showers and squalls.
WIND : Westerly 7/8. Severe gusts.
SEA : very rough to high. SW swell 4 to 6 m decreasing then W swell 4
to 6 m at end.
VIS : poor to very poor in precipitation.