WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE
11th 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 111000 TO 121000 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. TRADES : S to SE 35 in the south-east until tomorrow morning.
2. CAPE EAST: N to NW 35 in the south-east during the first half of the
period.
3. MARION FORTIES EAST: NW 35 in the north-east until mid-period, but
W to SW 35 in places in the southern half from
the evening, moderating in the south-west from
the morning.
SYNOPTIC CHART 06:00Z
=====================
High 1023 hPa 32s35w, High 1031 hPa 38s76e.
Low 993 hPa 46s39e, Low 1011 hPa 21s40e
AREA FORECAST:
==============
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 S to SE 05 to 15.
VIS : Good but moderate in showers and thundershowers over the
extreme south-east and north-east at first.
ST HELENA (15S/30S, 00E/20W):
WIND : S to SE 05 to 15.
VIS : Good but moderate in showers and thundershowers in the west.
TRADES (15S/30S, 00E/WEST COAST):
WIND : Variable 05 to 10 in the south-west and north-east, otherwise
S to SE 10 to 20 reaching 30 to 35 in the south-east until
tomorrow morning.
VIS : Good.
SEA STATE: 3.0m in the south-east from mid-period, with S to SE swell.
TRISTAN (30S/40S, 00E/20W):
WIND : Variable 05 to 10 in the northern half, otherwise W to NW 15
to 25, reaching 30 in places in the south-west during the
first half of the period, spreading to the south-east from
mid-period until tomorrow morning.
VIS : Good.
SEA STATE: 3.0 to 4.0m in the southern parts, with W to SW swell.
CAPE WEST (30S/40S, 00E/20E):
WIND : Variable 05 to 10 in the west and north-west, but S to SE 15
to 25 in the north-east, otherwise W to SW 15 to 25. It will
become NW 20 to 30 in the south-west from the evening,
spreading to the south-east from tomorrow morning.
VIS : Good but moderate in showers and rain in the south-east at
first.
SEA STATE: 3.0 to 4.0m in the east and southern parts, subsiding in the
east from tomorrow morning, with W to SW swell.
CAPE EAST (32.5S/40S, 20E/50E):
WIND : N to NW 15 to 25 reaching 30 to 35 in the south-east during
the first half of the period, but SW 15 to 25 in the south-
west spreading to the south from the evening, as well as
south-east from tomorrow morning.
VIS : Good but moderate in showers and rain in the south and south-
east. Clearing in the south from mid-period.
SEA STATE: 3.0 to 4.0m in the west and southern half, reaching 4.5m in
the west at first, with SW swell.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : N to NE 05 to 15 in the east and northern parts, reaching 25
in the north, otherwise variable 05 to 10.
VIS : Good.
SEA STATE: 3.0m in the north at first, with E to SE swell.
MOZAMBIQUE CHANNEL:
WIND : Cyclonic 10 to 20 over the central parts, otherwise E to SE 05
to 15.
VIS : Good but moderate in showers and thundershowers in the
central and southern parts at times.
SEA STATE: 3.0 to 3.5m in the west and south-west, with S to SE swell.
MADAGASCAR EAST (10S/25S, EAST COAST/55E):
WIND : E to NE 05 to 15 in the south, reaching 20 in the extreme
south-west at times, otherwise S to SE 05 to 15.
VIS : Good.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : NW 20 to 30 in the north and east, reaching 35 in the north-
east until mid-period, otherwise W to SW 20 to 30, reaching 35
in places in the southern half from the evening, moderating in
the south-west from the morning.
VIS : Good but moderate to poor in showers and rain in the central,
north, east and southern parts. Clearing in the south and
central parts from the evening, as well as north and east from
tomorrow morning.
SEA STATE: 3.0 to 4.0m in the north, east and western parts, spreading to
the south from the evening, reaching 4.5 to 5.0m in the north-
east until mid-period, as well as southern half from tomorrow
morning, with NW swell in the north-east, otherwise W to SW.
AREA 2:
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MARINE METEOROLOGICAL BULLETIN FROM METEO-FRANCE/LA REUNION ON AREA ACK (AMSTERDAM-CROZET-KERGUELEN)
26/11/11 AT 0500UTC
AVERAGED WIND SPEED ON BEAUFORT SCALE. (WIND GUSTS MAY BE ABOUT 40% STRONGER THAN THE AVERAGES GIVEN HERE).
PART 1: WARNING
GALE FORCE 8 TEMPORARY OVER CRO.
PART 2: GENERAL SYNOPSIS, 26/11/11 AT 0000UTC
- LOW 970 HPA NEAR 57S/75E RAPIDLY MOVING EASTWARD.- LOW 995 HPA DEEPENING QUICKLY NEAR 48S/40E RAPIDLY MOVING EASTWARD WITH COLD FRONT CF ASSOCIATED, AXIS 41S/30E, 42S/35E, 45S/38E, 48S/40E.- HIGH 1031 HPA NEAR 37S/80E.
PART 3: FORECAST FOR 24 HOURS FROM 26/11/11 AT 0600UTC TO 26/11/12 AT 0600UTC
WAM (30S/40S, 50E/65E)
SHOWERS OVER NORTHERN AREA, FRONTAL RAIN UNDER CF, SHOWERS AND SQUALLS ARRIVING BY FAR SOUTHWESTERN AREA LATER.
WIND : OVER NORTHERN AREA : E 3 TO 4, BACKING N SOON AND NW LOCALLY
FORCE 5 LATER. OVER SOUTHERN AREA : N 4 TO 6, BACKING NW 5 TO 7
LATER.
SEA : MODERATE TO ROUGH. SW SWELL AROUND 2 METERS, ABATING SOON OVER
EASTERN AREA. W SWELL AROUND 2 METERS ARRIVING BY FAR
SOUTHWESTERN AREA AT END.
VIS : POOR WITH PRECIPITATION.
AMS (30S/40S, 65E/80E)
SHOWERS OVER NORTHERN AREA.
WIND : OVER NORTHERN AREA : E 4 TO 5 BACKING N AT END.
OVER SOUTHERN AREA : ANTICLOCKWISE 2 TO 4 BECOMING N 4 TO 5
LATER.
SEA : ROUGH. SW SWELL 2 OR 4 METERS ABATING.
VIS : POOR WITH PRECIPITATION.
CRO (40S/50S, 50E/65E)
FRONTAL RAIN AND SHOWERS UNDER CF BY WESTERN AREA.
WIND : W THEN NW 5 TO 7, TEMPORARY 8. BACKING W 5 TO 7 AT END. GUSTS. SEA : ROUGH TO VERY ROUGH. W SWELL 3 TO 5 METERS ABATING SOON, THEN NW
SWELL 3 TO 5 METERS ARRIVING BY WESTERN AREA. CROSSED SEA.
VIS : POOR WITH PRECIPITATION.
KER (40S/50S, 65E/80E)
SHOWERS OVER SOUTHERN AREA, THEN FRONTAL RAIN AND SHOWERS BY SOUTHWESTERN AREA AT END
WIND : W 5 TO 7 WITH GUSTS DECREASING TEMPORARILY 4 TO 5 LATER, THEN
NW 6 TO 7 ARRIVING BY WESTERN AREA AT END.
SEA : ROUGH TO VERY ROUGH. W SWELL 3 TO 5 METERS FORM NORTHERN TO
SOUTHERN AREA, ABATING AT END.
VIS : POOR WITH PRECIPITATION.