WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE
13th OF NOVEMBER 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 131000 TO 141000 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: N to NW 35 in the central south, but SW to W 35 in the
south-west spreading to the south-east.
2. MARION FORTIES EAST: W to NW 35 to 40 in the south-west and the
north-east, but SW to S 35 in the west towards
mid-period.
SYNOPTIC CHART 06:00Z
=====================
High 1028 hPa 32s03w, High 1021 hPa 34s49e
Low 963 hPa 61s16w, Low 973 hPa 53s03e
1. Cold front : 45s23w 49s19w 54s13w 60s07w into 61s16w
2. Cold front : 42a25e 44s30e 48s38e 52s38e into 53s03e
AREA FORECAST:
==============
ASCENSION (06S/15S, 00E/20W):
WIND : E to SE 05 to 15.
VIS : Good.
ANGOLA (06S/15S, 00E/00N):
WIND : S to SE 05 to 15 in the south-west, otherwise variable 05 to
10.
VIS : Good.
ST HELENA (15S/30S, 00E/20W):
WIND : E to SE 05 to 15 reaching 20 in the north-east at times.
VIS : Good but moderate in showers and thundershowers in the south-
west.
TRADES (15S/30S, 00E/WEST COAST):
WIND : S to SE 15 to 25 reaching 30 in the south-east.
VIS : Good.
SEA STATE: 3.0 to 3.5m in the south-east subsiding towards the of the
period, with S to SE swell.
TRISTAN (30S/40S, 00E/20W):
WIND : Anticyclonic 05 to 15 in the north, otherwise NW to W 15 to 25
in the south, but S to SW 05 to 15 in the south-west from mid-
period.
VIS : Good, but moderate in showers and rain in the extreme south-
west from mid-period.
SEA STATE: 3.0 to 3.5m in the south-west, with SW swell.
CAPE WEST (30S/40S, 00E/20E):
WIND : Variable 05 to 10 in the north-west spreading to the south-
east by mid-period, otherwise S to SE 15 to 25, but W to NW 05
to 15 in the south-west.
VIS : Good.
SEA STATE: 3.0 to 3.5m in the south-east, with W to SW swell.
CAPE EAST (32.5S/40S, 20E/50E):
WIND : Anticyclonic in the north-east at first, otherwise N to NW 15
to 25 reaching 30 to 35 in the central south, but SW to W 25
to 35 in the south-west spreading to the south-east.
VIS : Good but moderate in showers and rain in the west and central
parts, spreading to the east from mid-period, while clearing
in the south-west.
SEA STATE: 3.0 to 4.0m, except in the extreme north, reaching 4.5 to 5.5m
in the south-east from mid-period, with SW swell.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : Variable 05 to 10 in the central and eastern parts, otherwise
N to NE 10 to 20, but S to SE 10 to 20 in the south-west from
mid-period.
VIS : Good but moderate in showers and thundershowers in the
south-west, spreading to the south-east by mid-period.
MOZAMBIQUE CHANNEL:
WIND : Cyclonic 05 to 15 in the west reaching 20 to 25 by mid-period,
otherwise N to NE 05 to 15, but variable 05 to 10 in the east.
VIS : Good but moderate to poor in showers and thundershowers in the
west at first, and from mid-period.
MADAGASCAR EAST (10S/25S, EAST COAST/55E):
WIND : N to NE 05 15 in the south, otherwise E to SE 05 to 15.
VIS : Good, moderate in showers and thundershowers in the north at
times.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : W to NW 20 to 30 reaching 35 to 40 in the south-west and the
north-east, but SW to S 30 to 35 in the west towards mid-
period.
VIS : Good in the north-east at first, otherwise moderate in showers
and rain, but poor in snow showers in the extreme south-west
from mid-period.
SEA STATE: 3.0 to 4.0m (except in the north-east at first) reaching 5.0
to 6.0m in the west and central parts by mid-period, but 7.0
to 7.5m towards the end of the period, with W to NW swell.
AREA 2:
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MARINE METEOROLOGICAL BULLETIN FROM METEO-FRANCE/LA REUNION ON AREA ACK (AMSTERDAM-CROZET-KERGUELEN)
26/11/13 AT 0600UTC
AVERAGED WIND SPEED ON BEAUFORT SCALE. (WIND GUSTS MAY BE ABOUT 40%
STRONGER THAN THE AVERAGES GIVEN HERE).
PART 1: WARNING
GALE FORCE 8 ONGOING AND EXPECTED OVER WAM, CRO AND KER.
PART 2: GENERAL SYNOPSIS, 26/11/13 AT 0000UTC
- LOW 960 HPA NEAR 53S/59E ASSOCIATED WITH A COLD FRONT (CF) AXIS
50S/71E, 38S/66E, 32S/52E, MOVING EASTWARDS AT 3540 KT.
- LOW 972 HPA NEAR 52S/25E ASSOCIATED WITH A COLD FRONT (CG) AXIS
53S/29E, 48S/34E, 39S/17E, MOVING EASTWARDS AT 3035 KT.
- HIGH 1022 HPA OVER AMS AT THE END.
PART 3: FORECAST FOR 24 HOURS FROM 26/11/13 AT 0600UTC TO 26/11/14 AT
0600UTC
WAM (30S/40S, 50E/65E)
SCATTERED SHOWERS CLOSE TO CG AT THE END OF PERIOD OVER WESTERN
AREA.
WIND: SW 4 TO 5 LOCALLY 6 AT THE BEGINNING BECOMING ANTICLOCKWISE 2 TO 4
SOON, THEN INCREASING N TO NW 6 TO 7, LOCALLY 8 AHEAD OF CG.
SEA : MODERATE TO ROUGH FROM NORHT TO SOUTH. SW SWELL 2
TO 3 M.
VIS : POOR IN PRECIPITATIONS.
AMS (30S/40S, 65E/80E)
RAIN, SQUALLS AND FRONTAL SHOWERS UNDER CF.
WIND: N TO 5 TO 6 OVER EASTERN AREA, BECOMING ANTICLOCKWISE 2 TO 4.
SEA : MODERATE TO ROUGH FROM NORTH TO SOUTH. SW SWELL 2 TO 3 M.
VIS : POOR IN PRECIPITATIONS.
CRO (40S/50S, 50E/65E)
RAIN, SQUALLS AND FRONTAL SHOWERS UNDER CG OVER WESTERN AREA.
WIND: WESTERLY 6 TO 8 FROM NORTH TO SOUTH, INCREASING NORTHERLY 7/8 AHEAD
OF CG AND BACKING WESSTERLY 6/7 BEHIND AT THE END OF PERIOD OVER
WESTERN AREA.
SEA : ROUGH TO VERY ROUGH, LOCALLY HIGH OVER SOUTHERN. SW SWELL 2 TO 4 M.
VIS : POOR IN PRECIPITATIONS.
KER (40S/50S, 65E/80E)
RAIN, SQUALLS AND FRONTAL SHOWERS UNDER CF.
WIND: N TO NW 6/7AHEAD OF CF, BACKING WESTERLY 6/7 LOCALLY 8 CLOSE TO
KERGUELEN ISLAND. STRONG GUSTS.
SEA : ROUGH TO VERY ROUGH BECOMING HIGH OVER SOUTHERN AREA. WESTERLY
SWELL 2 TO 4 M.
VIS : POOR IN PRECIPITATIONS.=