WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE
11th OF OCTOBER 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 112200 TO 122200 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 in the south-east at first.
2. MARION FORTIES EAST: W to NW 35 in the south-east at first, but NE 35 in the extreme south-west from mid-period, spreading to the central south towards end of the period.
SYNOPTIC CHART 12:00Z
=====================
High 1028 34s23w, High 1032 hPa 39s49e.
Low 992 hPa 46s06e.
1. Cold Front: 27s03w 34s04e 39s06e into 46s06e.
AREA FORECAST:
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ASCENSION (06S/15S, 00E/20W):
WIND : S to SE 05 to 15.
VIS : Good.
ANGOLA (06S/15S, 00E/00N):
WIND : S to SW 05 to 15, but SE 10 to 15 in the south-west.
VIS : Good, becoming moderate in showers and thundershowers in the
extreme east until mid-period.
ST HELENA (15S/30S, 00E/20W):
WIND : E to SE 10 to 20, but anticyclonic 05 to 15 in the south.
VIS : Good.
SEA STATE: 3.0m in the extreme south-east until mid-period, with S to SW
swell.
TRADES (15S/30S, 00E/WEST COAST):
WIND : S to SW 10 to 20, becoming SE 05 to 15 in the west towards
mid-period.
VIS : Good but moderate in showers and rain in the south-east.
TRISTAN (30S/40S, 00E/20W):
WIND : W to SW 20 to 30, becoming N to NW 20 to 30 in the north-west
towards mid-period.
VIS : Good but moderate in showers and rain in the east and south.
It will become moderate to poor in showers and thundershowers
in the west towards end of the period.
SEA STATE: 3.0 to 4.0m, except in the north-west, reaching 4.5m in the
extreme south-east from mid-period, with SW swell.
CAPE WEST (30S/40S, 00E/20E):
WIND : N to NW 20 to 30, reaching 35 in the south-east at first,
while SW to W 20 to 30 in the west, spreading eastwards during
the first half of the period. It will become NW 20 to 30 in
the south-west from mid-period.
VIS : Moderate to poor in showers and rain, becoming good in the
west from mid-period, but moderate in showers and rain in the
south-west towards end of the period.
SEA STATE: 3.0 to 4.0m in the south and western parts, reaching 4.5m in
the extreme south-west towards end of the period, with W to SW
swell.
CAPE EAST (32.5S/40S, 20E/50E):
WIND : N to NE 20 to 30. It will become W to NW 20 to 30 in the west
in the first half of the period, becoming SW 10 to 20 towards
end of the period.
VIS : Good but moderate to poor in showers and thundershowers in the
central parts as well as in the west from mid-period.
SEA STATE: 3.0 to 4.0m in the central and southern parts, with N to NE
swell, but W to NW swell in the extreme south-western.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : E to NE 15 to 25, reaching 30 in the south-west and central
north.
VIS : Good, becoming moderate in showers and rain in the north-east
in the second half of the period.
SEA STATE: 3.0 to 4.0m in the south-west and in the central north, with
NE to E swell.
MOZAMBIQUE CHANNEL:
WIND : S to SE 15 to 25, becoming variable 05 to 10 towards mid-
period.
VIS : Good but moderate in showers and thundershowers over the
northern parts in the first half of the period.
MADAGASCAR EAST (10S/25S, EAST COAST/55E):
WIND : E to SE 15 to 25, but NE 05 to 15 in the extreme south-west.
VIS : Moderate in showers and rain.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : W to NW 20 to 30, reaching 35 in the south-east at first,
becoming NE 20 to 30 in the south-west from mid-period,
reaching 35 in the extreme south-west, spreading to the
central south towards end of the period.
VIS : Moderate to poor in showers and thundershowers.
SEA STATE: 3.0 to 4.0m reaching 4.5 to 5.0m in the south-east until mid
period, with W to SW swell, but NW in the north-west.
AREA 2:
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MARINE METEOROLOGICAL BULLETIN FROM METEO-FRANCE/LA REUNION ON AREA ACK (AMSTERDAM-CROZET-KERGUELEN)
26/10/11 AT 0600UTC
AVERAGED WIND SPEED ON BEAUFORT SCALE. (WIND GUSTS MAY BE ABOUT 40% STRONGER THAN THE AVERAGES GIVEN HERE).
PART 1: WARNING
- NIL.
PART 2: GENERAL SYNOPSIS, 26/10/11 AT 0000UTC
- COLD FRONT AXIS 37S/55E, 44S/70E, 50S/79E, 55S/81E MOVING
EASTWARD.
- HIGH1029 HPA NEAR 39S/94E WITH A RIDGE EXTENDING WEST-NORTHWESTWARD, MOVING SLOWLY EASTWARD.
- HIGH1028 HPA NEAR 39S/42E, EXPECTED 1034 HPA NEAR 35S/58E AT END.
PART 3: FORECAST FOR 24 HOURS FROM 26/10/11 AT 0600UTC TO 26/10/12 AT 0600UTC
WAM (30S/40S, 50E/65E)
SHOWERS AND FRONTAL RAIN.
WIND: NORTHWESTERLY 4 TO 5 AHEAD OF THE FRONT, BACKING SOUTHERLY TO
SOUTHEASTERLY 5/6 BEHIND OVER EASTERN AND NORTHERN.
SEA: MODERATE, BUT ROUGH IN FAR SOUTH. ARRIVAL OF SOUTHWEST SWELL 2 TO
3 METERS FROM SOUTH.
VIS: POOR IN PRECIPITATION.
AMS (30S/40S, 65E/80E)
SHOWERS AND FRONTAL RAIN.
WIND: NORTHWESTERLY 5 TO 6 AHEAD THE FRONT, BACKING SOUTHERLY 5/6,
TEMPORARILY 7 WITH GUSTS BEHIND AT END.
SEA: MODERATE, BECOMING ROUGH BY THE SOUTH. SOUTHWEST SWELL 2 TO 3
METERS OVER FAR SOUTHERN.
VIS: POOR IN PRECIPITATION.
CRO (40S/50S, 50E/65E)
SCATTERED SHOWERS, THEN RAIN AND FRONTAL SHOWERS IN SOUTHWESTERN AT END.
WIND: NORTHERN HALF: SOUTHWESTERLY 4/6, VEERING WESTERLY 2/4 THEN
NORTHWESTERLY 5/6 AT END.SOUTHERN HALF: WESTERLY THEN SOUTHWEST
5/6, REACHING 7 IN SOUTHERN. THEN NORTHWESTERLY 6/7 FROM SOUTHWEST
AT END.
SEA: ROUGH TO VERY ROUGH, TEMPORARILY HIGH OVER SOUTHERN. ARRIVAL OF
SOUTHWEST SWELL 3 TO 6 METERS FROM SOUTHWEST.
VIS: POOR IN PRECIPITATION.
KER (40S/50S, 65E/80E)
RAIN AND FRONTAL SHOWERS, THEN SHOWERS.
WIND: NORTHWESTERLY 6/7 WITH GUSTS AHEAD THE FRONT, BACKING
SOUTHWESTERLY 5/6 BEHIND.
SEA: ROUGH, BECOMING VERY ROUGH OVER SOUTHERN AND WESTERN, LOCALLY HIGH
OVER EXTREME SOUTHWESTERN. WESTERLY SWELL 2 TO 4 METERS, THEN
ARRIVAL OF SOUTHWEST SWELL 3 TO 6 METERS FROM THE SOUTHWEST
OVERNIGHT.
VIS: POOR IN PRECIPITATION.=