WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE
16th 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 162200 TO 172200 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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1. MARION FORTIES EAST: W to NW 35 in places in the west and south.
SYNOPTIC CHART 12:00Z
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High 1019 hPa 19s12w, High 1027 hPa 30s56e.
Low 972 hPa 51s22e, Low 972 hPa 57s41e.
1. Cold front: 25s13w 34s07e 42s19e into 51s22e.
2. Cold Front: 48s40e 52s48e 56s49e into 57s41e.
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 10 to 15 but variable 05 to 15 in the east.
VIS : Good.
ST HELENA (15S/30S, 00E/20W):
WIND : Anticyclonic 05 to 15, but S to SE 15 to 25 in the south.
VIS : Good, but moderate in showers and rain in the central and
southern parts, clearing from the south-west from mid-period.
SEA STATE: 3.0 to 4.0m in places in the southern parts, spreading to the
central parts from mid-period, with W to SW swell.
TRADES (15S/30S, 00E/WEST COAST):
WIND : S to SE 10 to 20 reaching 25 in the south and east from the
second half of the period.
VIS : Good but moderate in rain in places in the south-west and
south.
SEA STATE: 3.0m in places in south-west and southern parts, with SW
swell.
TRISTAN (30S/40S, 00E/20W):
WIND : W to SW 15 to 15 in the south, otherwise S to SE 10 to 20, but
anti-cyclonic 05 to 15 in the west and central parts spreading
to the north from mid-period.
VIS : Good.
SEA STATE: 3.0 to 4.0m, subsiding in the west towards mid-period, with S
to SW swell.
CAPE WEST (30S/40S, 00E/20E):
WIND : SW to S 10 to 20 reaching 25 to 30 in the southern parts, but
variable 05 to 15 in the north-east until mid-period.
VIS : Good, but moderate to poor in showers and rain in places in
east and southern parts.
SEA STATE: 3.0 to 4.0m, reaching 4.5 to 5.0m in the southern parts, with
W to SW swell.
CAPE EAST (32.5S/40S, 20E/50E):
WIND : SW to S 15 to 25 in the west, otherwise N to NE 10 to 20.
VIS : Good but moderate in showers and thundershowers in the west
and south.
SEA STATE: 3.0 to 4.0m in the west and south, reaching 4.5 to 5.5m in the
south-west, with W to SW swell.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : E to NE 15 to 25 reaching 30 in the north, becoming SW 15 to
25 in the south-west during the first half of the period.
VIS : Good becoming moderate in showers and thundershowers in the
south-west towards the end of the period.
SEA STATE: 3.0 to 4.0m in the central north and south-west, with NE swell
but SW in the south-west.
MOZAMBIQUE CHANNEL:
WIND : E to SE 10 to 20 in the north for the first half of the
period, otherwise variable 05 to 15.
VIS : Good, but moderate in rain in places in the 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 spreading
to the south from mid-period.
VIS : Good, but moderate in rain in places and at times.
SEA STATE: 3.0m in the northern parts, with SE swell.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : W to NW 15 to 25, reaching 30 to 35 in places in the west and
south, becoming variable 05 to 15 in the north-west towards
mid-period.
VIS : Good, becoming moderate in showers and rain in the
west and southern parts.
SEA STATE: 3.5 to 4.5m, reaching 5.0 to 7.0m in the south-west and
southern parts.
AREA 2:
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MARINE METEOROLOGICAL BULLETIN FROM METEO-FRANCE/LA REUNION ON AREA ACK (AMSTERDAM-CROZET-KERGUELEN)
26/10/16 AT 0600UTC
AVERAGED WIND SPEED ON BEAUFORT SCALE. (WIND GUSTS MAY BE ABOUT 40% STRONGER THAN THE AVERAGES GIVEN HERE).
PART 1: WARNING
- GALE OVER SOUTHERN CRO AND SOUTHERN KER.
PART 2: GENERAL SYNOPSIS, 26/10/16 AT 0000UTC
- COLD FRONT AXIS 43S/53E, 45S/58E, 50S/62E MOVING EAST-NORTHEASTWARD
5 KT.- HIGH 1028 HPA NEAR 30S/57E, EXTENDING OVER NORTHERN AMS.
PART 3: FORECAST FOR 24 HOURS FROM 26/10/16 AT 0600UTC TO 26/10/17 AT 0600UTC
WAM (30S/40S, 50E/65E)
FEW SHOWERS OVER SOUTHERN.
WIND : ANTICLOCKWISE 3 OR 4 OVER NORTHERN, W 4 OR 5 OVER SOUTHERN.
SEA : MODERATE, TEMPORARILY ROUGH OVER EASTERN AND SOUTHERN. SW SWELL 2
TO 3 METERS OVER EASTERN, ABATING.
VIS : MODERATE IN PRECIPITATION.
AMS (30S/40S, 65E/80E)
FRONTAL RAIN AND SHOWERS OVER FAR SOUTHERN.
WIND : NW 5/6 AHEAD THE FRONT WITH GUSTS, BACKING SW 5/6 BEHIND, THEN
ANTICLOCKWISE 3/4 OVER WESTERN.
SEA : MODERATE TO VERY ROUGH FROM WEST TO EAST AT FIRST, BECOMING
MODERATE TO ROUGH. SW SWELL 3 TO 5 METERS AT FIRST, ABATING.
VIS : POOR IN PRECIPITATION.
CRO (40S/50S, 50E/65E)
FRONTAL RAIN OR SHOWERS OVER SOUTHWESTERN AT END.
WIND : SW 6/7, VEERING W 3 TO 6 FROM NORTH TO SOUTH, THEN NW 7/8 WITH
GUSTS OVER SOUTHWESTERN AT END.
SEA : ROUGH TO VERY ROUGH OVER SOUTHERN. SW SWELL 2 TO 6 METERS FROM
NORTH TO SOUTH.
VIS : POOR IN PRECIPITATION.
KER (40S/50S, 65E/80E)
FRONTAL RAIN AND SHOWERS.
WIND : NW 6/7 AHEAD THE FRONT WITH GUSTS, BACKING SW 7/8 BEHIND WITH
STRONG GUSTS, THEN W 4 TO 7 FROM NORTH TO SOUTH.
SEA : ROUGH TO VERY ROUGH OVER EASTERN AT FIRST, THEN TEMPORARILY
DECREASING, BUT VERY ROUGH TO HIGH OVER SOUTHERN AT END.
SW SWELL 3 TO 5 METERS OVER EAST AT FIRST AND 4 TO 7 METERS OVER
SOUTHERN AT END.
VIS : POOR IN PRECIPITATION.