WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE
30th OF OCTOBER 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 301000 TO 311000 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:
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Nil.
SYNOPTIC CHART 06:00Z
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High 1024 hPa 33s03e, High 1027 hPa 36s40e
AREA FORECAST:
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ASCENSION (06S/15S, 00E/20W):
WIND : E to SE 05 to 15.
VIS : Good.
ANGOLA (06S/15S, 00E/00N):
WIND : SW 05 to 15 in the east, otherwise SE to E 05 to 15.
VIS : Good.
ST HELENA (15S/30S, 00E/20W):
WIND : E to NE 05 to 15 but variable 05 to 10 in the south-west.
VIS : Good but moderate in showers and rain in the south-west.
SEA STATE: 3.0m in the south, with SW swell.
TRADES (15S/30S, 00E/WEST COAST):
WIND : Anticyclonic 05 to 15 in the south-west, otherwise S to SE 15
to 25, reaching 30 in the extreme south-east.
VIS : Good.
TRISTAN (30S/40S, 00E/20W):
WIND : Anticyclonic 05 to 15 in the north-east, otherwise W to NW 10
to 20 becoming variable 05 to 10 towards the end of the
period.
VIS : Good but moderate in showers and rain over the central
spreading to the east while clearing from the west
from the second half of the period.
SEA STATE: 3.0, with W to SW swell.
CAPE WEST (30S/40S, 00E/20E):
WIND : Anticyclonic 05 to 15 but S to SE 15 to 20 in the north-east.
VIS : Good becoming moderate in rain showers from the west in the
second half of the period.
SEA STATE: 3.0m in the south and south-west with W to SW swell.
CAPE EAST (32.5S/40S, 20E/50E):
WIND : Anticyclonic 05 to 15 but NE 20 to 30 in the extreme north-
west.
VIS : Good.
SEA STATE: 3.0 with SW swell except over the north-west where it will be
3.5 to 4.0m with a NE swell.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : E to NE 05 to 15 in the west reaching 20 to 25 in the extreme
south-west, otherwise S to SE 15 to 25.
VIS : Good but moderate to poor in showers and thundershowers in the
east.
SEA STATE: 3.0 to 3.5m in the extreme east and south-west, with E to SE
swell.
MOZAMBIQUE CHANNEL:
WIND : S to SE 10 to 20 reaching 25 in places in the south-east.
VIS : Moderate in showers and thundershowers in the northern-eastern
parts, otherwise good.
SEA STATE: 3.0m in the south, with S to SE swell.
MADAGASCAR EAST (10S/25S, EAST COAST/55E):
WIND : E to NE 10 to 20 but cyclonic 15 to 25 in the south moderating
during the second half of the period.
VIS : Good but moderate to poor in showers and thundershowers in the
central and southern parts.
SEA STATE: 3.0m in the south-east, with N to NE swell.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : W to NW 15 to 25.
VIS : Good, becoming moderate in showers and rain in the north-west
towards the mid-period spreading to the north by the end of
the period.
SEA STATE: 3.5 to 4.5m except in the north, with W to SW swell.
AREA 2:
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MARINE METEOROLOGICAL BULLETIN FROM METEO-FRANCE/LA REUNION ON AREA ACK (AMSTERDAM-CROZET-KERGUELEN)
26/10/30 AT 0500UTC
AVERAGED WIND SPEED ON BEAUFORT SCALE. (WIND GUSTS MAY BE ABOUT 40% STRONGER THAN THE AVERAGES GIVEN HERE).
PART 1: WARNING
- GALE OVER AMS AND KER.
PART 2: GENERAL SYNOPSIS, 26/10/30 AT 0000UTC
- HIGH 1033 NEAR 33S/78E SLOWLY MOVING NORTH-EASTWARD.- FILLING LOW
990 NEAR 47S/64E, WIYTH ASSOCIATED COLD FRONT CF AXIS 25S/50E, 30S/55E, 33S/60E, 37S/65E, 40S/67E, 43S/70E, 45S/54E, ALL STEADILY MOVING EASTWARD.
PART 3: FORECAST FOR 24 HOURS FROM 26/10/30 AT 0600UTC TO 26/10/31 AT 0600UTC
WAM (30S/40S, 50E/65E)
FRONTAL RAIN (CF), SHOWERS AND SQUALLS AT TIMES THUNDERY. SCATTERED SHOWERS BEHIND BUT FRONTAL RAIN AND SQUALLS OVER NORTHWESTERN AT
END.
WIND: NORTHERLY 5/6 LOCALLY 7 AHEAD OF THE FRONT AT FIRST, VEERING SOUTHEASTERLY 4/5 BEHIND, LOCALLY 6 OVER NORTHWESTERN AT END.
SEVERE GUSTS.
SEA: MODERATE TO ROUGH OVER NORTHERN, BUT ROUGH TO VERY ROUGH OVER SOUTHERN BY S SWELL 3 TO 4M ABATING LATER. CROSSED SEA OVER NORTHEASTERN AT FIRST.
VISI: VERY POOR IN PRECIPITATION.
AMS (30S/40S, 65E/80E)
FRONTAL RAIN (CF), SHOWERS AND SQUALLS OVER SOUTHERN.WIND: NORTHERLY
5/7 OVER SOUTHERN, LOCALLY 8 AT FIRST, BACKING WESTERLY 3/5 LOCALLY 6 LATER.NORTHERLY 4/5 OVER NORTHERN, BACKING WESTERLY LATER. GUSTS.
SEA: MODERATE OVER NORTHERN, BUT ROUGH TO VERY ROUGH OVER SOUTHERN BY NW SWELL 2 TO 4 M, BECOMING W AND ABATING 2 TO 3 M LATER.
VISI : POOR OR VERY POOR IN PRECIPITATION.
CRO (40S/50S, 50E/65E)
SCATTERED SHOWERS. WIND: NORTHERN HALF: SOUTHERLY 5/7 OVER EASTERN AT FIRST, AND 4/5 ELSEWHERE, VEERING WESTERLY 4/6 LATER.SOUTHERN HALF :
SOUTHWESTERLY 5/6 VEERING WESTERLY SOON.
SEA: ROUGH TO VERY ROUGH. N SWELL 3 TO 4M AHEAD OF THE FRONT, BUT S SWELL 3 TO 4M BEHIND THEN ABATING. LONG SW SWELL 3 TO 5M LATER OVER SOUTHERN.
VISI: POOR OR VERY POOR IN PRECIPITATION.
KER (40S/50S, 65E/80E)
FRONTAL RAIN, SHOWERS AND SQUALLS.WIND: CLOCKWISE 6/7 AT TIMES 8 WITH SEVERE GUSTS. DECREASING SOUTHWESTERLY 5/6 FROM WEST SOON, THEN WESTERLY 5/6 LOCALLY 7 OVER SOUTHERN AT END.
SEA: ROUGH TO VERY ROUGH.
SW SWELL 3 TO 4 OVER EASTERN ABATING THEN NW SWELL 3 TO 5M SPREADING GRADUALLY FROM WEST. LONG SW SWELL 3 TO 4M OVER SOUTHWESTERN AT END.
VISI : POR OR VERY POOR IN PRECIPITATION.=