WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE
13th OF NOVEMBER 2026 AT 17:00 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:
=======
FORECAST VALID FROM 132200 TO 142200 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 S to SW 35 to 40 in
south-west spreading to the south-east by mid period.
2. CAPE WEST: E to SE 35 in the east.
2. MARION FORTIES EAST: W to NW 35 to 40 in the north-east at first,
otherwise SW to S 35 to 40 at times.
SYNOPTIC CHART 12:00Z
=====================
High 1028 hPa 32s05w, High 1020 hPa 33s55e
Low 961 hPa 61s13w, Low 975 hPa 53s36e
1. Cold front : 54s15w 57s09w 64s05w 63s12w into 61s13w
2. Cold front : 39a32e 43s37e 49s44e 54s39e into 53s36e
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 but 20 in the north 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 end of the
period, with S to SE swell.
TRISTAN (30S/40S, 00E/20W):
WIND : Anticyclonic 05 to 15 in the north-east, otherwise N to NW 15
to 25, 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 and north-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 : W to SW 05 to 15 in the south and variable 05 to 15 in the
north-west, otherwise E to SE 10 to 20 reaching 35 in the
east.
VIS : Good.
SEA STATE: 3.0 to 3.5m in the east, but 4.0 to 4.5m in the south-east at
first, with W to SW swell.
CAPE EAST (32.5S/40S, 20E/50E):
WIND : N to NW 15 to 25 in the east reaching 30 to 35 in the central
south, but S to SW 20 to 30 in the west reaching 35 to 40 in
south-west spreading to the south-east by mid period.
VIS : Good but moderate in showers and rain in the north-west and
in the east.
SEA STATE: 3.0 to 4.0m, reaching 5.0 to 6m in the south from mid-period,
with SW swell.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : N to NW 10 to 20 in the east, otherwise S to SE 05 to 15
reaching 25 in the south-west towards end of the period.
VIS : Moderate to poor in showers and thundershowers except in the
central parts.
MOZAMBIQUE CHANNEL:
WIND : E to NE 10 to 20 reaching 25 in the south towards end of the
period, but variable 05 to 10 in the north-east.
VIS : Good but moderate to poor in showers and thundershowers in the
west and in the north-east.
MADAGASCAR EAST (10S/25S, EAST COAST/55E):
WIND : N to NE 05 to 15 in the south-east, 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 in the east reaching 35 to 40 in the north-
east at first, otherwise SW to S 20 to 30 reaching 35 to 40 at
times.
VIS : Moderate in showers and rain, but poor in snow showers in the
extreme south-west.
SEA STATE: 3.0 to 4.0m, but 6.0 to 7.0m in the west spreading to the east
By mid-period, with W to NW swell.
AREA 2:
======
MARINE METEOROLOGICAL BULLETIN FROM METEO-FRANCE/LA REUNION ON AREA
ACK (AMSTERDAM-CROZET-KERGUELEN)
26/11/13 AT 1600UTC
AVERAGED WIND SPEED ON BEAUFORT SCALE. (WIND GUSTS MAY BE ABOUT 40%
STRONGER THAN THE AVERAGES GIVEN HERE).
PART 1: WARNING
GALE FORCE 8 EXPECTED SOON OVER CRO.GALE FORCE 8 CONTINUING AND
EXPECTED OVER KER.
PART 2: GENERAL SYNOPSIS, 26/11/13 AT 1200UTC
- COLD FRONT AXIS NNW/SSE OVER EAST AMS AND KER, RAPISLY MOVING
EASTWARD.
- HIGH 1020 NEAR 35S/55E, MOVING EASTWARD, EXPECTED 1022
NEAR 33S/69E AT 06UTC, THEN 1023 NEAR 33S/77E AT END.
- NEW COLD FRONT
MOVING OVER CRO SOON, EXPECTED 35S/50E 50S/56E AT 06UTC, THEN 30S/51E
50S/69E AT END.
PART 3: FORECAST FOR 24 HOURS FROM 26/11/13 AT 1800UTC TO 26/11/14
AT 1800UTC
WAM (30S/40S, 50E/65E)
SCATTERED SHOWERS THEN LATER FRONTAL RAIN AND SHOWERS OVER
SOUTHERN.
WIND: ANTICYCLOCKWISE 3 TO 5, SOON INCREASING FROM WEST NW 3
OR 4, AT TIMES 5 OVER NORTHERN, 6 OR 7 OVER SOUTHERN,
BACKING W OR SW 5 OR 6, AT TIMES 7 BEHIND THE FRONT. GUSTS.
SEA :MODERATE OR ROUGH FROM NORTH TO SOUTH, LOCALLY BECOMING
VERY ROUGH OVER SOUTHWESTERN AT END.
VIS : POOR WITH PRECIPITATION.
AMS (30S/40S, 65E/80E)
RAIN, SQUALLS AND FRONTAL SHOWERS OVER FAR EASTERN AT FIRST,
ELSEWHERE SCATTERED SHOWERS.
WIND: SW 4 OR 5, BUT NW 4 OR 5 OVER FAR NORTHEASTERN AT FIRST,
SOON BECOMING ANTICYCLOCKWISE 2 TO 4 FROM
WEST, INCREASING FROM WEST NW 4 TO 6 AT END.
SEA : MODERATE TO ROUGH FROM NORTH TO SOUTH.
VIS : POOR WITH PRECIPITATION.
CRO (40S/50S, 50E/65E)
SCATTERED SHOWERS, THEN FRONTAL RAIN, SQUALLS AND SHOWERS CROSSING
THE AREA.
WIND: NW 5 OR 6, BUT W 5 OR 6 OVER EASTERN AT FIRST, SOON
INCREASING NW 7 OR 8 AHEAD THE FRONT, BACKING W 7 OR 8
BEHIND THE FRONT. SEVERE GUSTS.
SEA : ROUGH OR VERY ROUGH, LOCALLY HIGH OVER EASTERN AT FIRST
AND OVER WESTERN AT END. SW SWELL 4 OR 5 METERS OVER
EASTERN AT FIRST AND W SWELL 4 OR 5 METERS OVER WESTERN AT END.
VIS : POOR WITH PRECIPITATION.
KER (40S/50S, 65E/80E)
SCATTERED SHOWERS, THEN FRONTAL RAIN, SQUALLS AND SHOWERS OVER
WESTERN AT END.
WIND: W 5 OR 6, AT TIMES 7 OVER NORTHERN, 6 OR 7, AT
TIMES 8 OVER SOUTHERN, VEERING LATER NW 6 OR 7, AT TIMES
8 OVER WESTERN AT END. SEVERE GUSTS.
SEA : VERY ROUGH, LOCALLY HIGH OVER SOUTHERN. W SWELL 3 TO 4 METERS.
VIS : POOR WITH PRECIPITATION.