WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE
16th 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 161000 TO 171000 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 EAST: NW 35 in the south-west at first.
2. MARION FORTIES EAST: W to NW 35 in places in the west towards mid-
period, spreading to the south during the second
half of the period.
SYNOPTIC CHART 06:00Z
=====================
High 1018 hPa 22s04e, High 1029 hPa 29s57e.
Low 976 hPa 50s14e, Low 972 hPa 57s35e.
1. Cold front: 28s12w 33s00w 41s15w into 50s14e.
2. Cold Front: 45s25e 49s34e 52s41e into 57s35e.
AREA FORECAST:
==============
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.
SEA STATE: 3.0m in places in the southern parts, with W to SW swell.
TRADES (15S/30S, 00E/WEST COAST):
WIND : Anticyclonic 05 to 15 in the west and south until mid-period,
otherwise S to SE 15 to 25.
VIS : Good but moderate in rain in places in the south-west and
south.
SEA STATE: 3.0m in places in southern and central parts until mid-period,
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
reaching 25 in the northern parts at first, becoming
anti-cyclonic 05 to 15 in the west and central parts from mid-
period.
VIS : Good, but moderate in showers and rain in the south for the
first half of the period.
SEA STATE: 3.0 to 4.0m, reaching 4.5 to 5.5m in the south, with S to SW
swell.
CAPE WEST (30S/40S, 00E/20E):
WIND : NW 15 to 25 in the central and east, reaching 30 in the south-
east for the first half of the period, otherwise W to SW 20 to
30 spreading to the east and southern parts towards mid-
period.
VIS : Good, but moderate to poor in showers and rain in places in
the west, central and south-east but only in the south and
east from mid-period.
SEA STATE: 3.0 to 4.0m, reaching 4.5 to 5.5m in the southern parts, with
W to SW swell.
CAPE EAST (32.5S/40S, 20E/50E):
WIND : NW 15 to 25, reaching 30 to 35 in the south-west at first,
otherwise N to NE 10 to 20, becoming W to SW 10 to 20 in the
west towards mid-period.
VIS : Good but moderate in showers and rain in the south-west and
west.
SEA STATE: 3.0 to 4.0m in the west, reaching 4.5 to 5.5m in the south-
west, with W to NW 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 second half of the period.
VIS : Good.
SEA STATE: 3.0 to 3.5m in the central north, as well as in the south-west
during the second half of the period, with NE swell.
MOZAMBIQUE CHANNEL:
WIND : E to SE 10 to 20 in the north, otherwise variable 05 to 15.
VIS : Good, becoming moderate in rain in places in the north from
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 : 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
towards mid-period, spreading to the south during the second
half of the period. It will become variable 05 to 15 in the
north-west towards the end of the period.
VIS : Good, becoming moderate in showers and rain in the
west and south-west towards mid-period, spreading to the
southern parts during the second half of the period.
SEA STATE: 3.0 to 4.0m, reaching 4.5 to 5.5m in the south-west, spreading
to the southern parts towards mid-period.
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.