WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE
14th OF SEPTEMBER 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:
=======
FORECAST VALID FROM 141000 TO 151000 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 WEST: NW to W 35 in the south-east.
2. CAPE EAST: N to NE, reaching 35 to 40 over the central and southern
parts, but W to NW 35 in the north-west from mid-period.
3. DURBAN EAST: E to NE 35 in the north and central parts, spreading to
the east towards the end of the period.
4. MARION FORTIES EAST: N to NW 35 to 40 towards mid-period over the
western half, spreading to the eastern parts
during the second half of the period.
SYNOPTIC CHART 06:00Z
=====================
High 1036 hPa 37s42e
Low 960 hPa 54s13e, Low 1004 hPa 37s13e
1. Cold Front: 25s23w 30s13w 35s03w 40s05ew 45s12e into 54s13e
AREA FORECAST:
==============
ASCENSION (06S/15S, 00E/20W):
WIND : S to SE 05 to 15.
VIS : Good.
ANGOLA (06S/15S, 00E/00N):
WIND : S to SE 05 to 15.
VIS : Good.
ST HELENA (15S/30S, 00E/20W):
WIND : Anticyclonic 05 to 10 over the northern half, otherwise W to
NW 15 to 25, but S to SE 15 to 25 in the south-west spreading
to the south-east from mid-period.
VIS : Good but moderate in showers and rain in the south.
SEA STATE: 3.0m in the south-west, with SW swell.
TRADES (15S/30S, 00E/WEST COAST):
WIND : Variable 05 to 10 over the central parts, otherwise S to SE 05
to 15 reaching 20 to 25 in the north-east, but W to NW 15 to
25 in the southern parts.
VIS : Good but moderate to poor in showers and rain in the south-
western parts.
SEA STATE: 3.0m in places in the extreme south-eastern parts at first,
with S to SE swell.
TRISTAN (30S/40S, 00E/20W):
WIND : S to SW 15 to 25 in the southern parts where it will reach 30 at times, becoming anticyclonic 05 to 10 over the central parts, but S to SE 05 to 15 in the north-east.
VIS : Moderate in rain and showers, becoming good in the north-west
from mid-period.
SEA STATE: 3.0 to 4.0m reaching 4.5m in the southern parts, with W
to SW swell.
CAPE WEST (30S/40S, 00E/20E):
WIND : NW to W 15 to 25 in the north-east, reaching 30 to 35 in the
south-east, otherwise SW to S 20 to 30.
VIS : Good but moderate to poor in showers and thundershowers across
the north-west central parts and the south-east, spreading to
the north-east towards the end of the period.
SEA STATE: 3.0 to 4.0m reaching 4.5 to 5.0m in the southern parts from
mid-period, with W to SW swell.
CAPE EAST (32.5S/40S, 20E/50E):
WIND : N to NE 20 to 30, reaching 35 to 40 over the central and
southern parts, but W to NW 15 to 25 in the west, reaching
30 to 35 in the north-west from mid-period.
VIS : moderate in showers and rain the west and the central parts,
otherwise good.
SEA STATE: 3.0 to 4.0m, reaching 4.5 to 5.5m in places in the west and
the extreme east at first, with E to NE swell, but SW in the
extreme east at first.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : E to NE 15 to 25, reaching 30 to 35 in the northern parts and
the central parts, spreading to the east towards the end of
the period.
VIS : Good but moderate in showers and rain in the south-west from
mid-period.
SEA STATE: 3.0 to 4.0m, reaching 4.5m in the south-east and south-west,
with E to NE swell, but SW in the south-east.
MOZAMBIQUE CHANNEL:
WIND : Variable 05 to 10 in the north, but E to SE 10 to 20 in the
north-east, otherwise E to NE 05 to 15.
VIS : Good, but moderate in showers and rain in the north-west.
SEA STATE: 3.0 to 3.5m in the south-east, with SE swell.
MADAGASCAR EAST (10S/25S, EAST COAST/55E):
WIND : SE 15 to 25, reaching 30 in the north-west at times, but E 15
to 25 in the south-east.
VIS : Moderate in showers and rain in places.
SEA STATE: 3.0 to 3.5m in the south from the morning, with SE swell.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : W to NW 20 to 30 in the east during the first half of the
period, otherwise N to NW 15 to 25 reaching 30 to 40 towards
mid-period over the western half, spreading to the eastern
parts during the second half of the period.
VIS : Good but moderate to poor in showers and rain in the west by
mid-period, spreading to the eastern parts during the second
half of the period.
SEA STATE: 4.0 to 6.0m, with W to NW swell.
AREA 2:
======
MARINE METEOROLOGICAL BULLETIN FROM METEO-FRANCE/LA REUNION ON AREA ACK AMSTERDAM-CROZET-KERGUELEN)
26/09/14 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 WAM, AMS, CRO AND KER.
PART 2: GENERAL SYNOPSIS, 26/09/14 AT 0000UTC
- HIGH 1034 HPA NEAR 40S/39E, EXPECTED1037 HPA NEAR 36S/50E AT END.
COLD FRONT CF AXIS 39S/55E, 35S/64E, 39S/69E, 54S/70E MOVING RAPIDLY
EASTWARD, WITH DEEPENING LOW, 973 HPA NEAR 54S/70E .
PART 3: FORECAST FOR 24 HOURS FROM 26/09/14 AT 0600UTC TO 26/09/15 AT
0600UTC
WAM (30S/40S, 50E/65E)
RAIN OR FRONTAL SHOWERS.LOC THUNDERSTORM, CF AT FIRST.
WIND: SOUTHWEST 7/8, DECREASING DURING THE NIGHT SOUTHERLY 6/7 THEN
ANTICLOCKWISE 2/4 IN WEST AT END.SEA: VERY ROUGH TO HIGH. ARRIVAL OF
SW SWELL 4 TO 7 METERS.
VIS: POOR IN PRECIPITATION.
AMS (30S/40S, 65E/80E)
RAIN OR FRONTAL SHOWERS.LOC THUNDERSTORM, CF.
WIND: WESTERLY TO SOUTH-WESTERLY 6/7, THEN SOON SW 7/8 WITH GUSTS DECREASING
6/7 From THE W AT END.
SEA : VERY ROUGH TO HIGH. SOUTHWEST SWELL 3 TO 4 METERS, REACHING 5 TO 7
METERS IN THE WEST LATER.
VIS : POOR IN PRECIPITATION.
CRO (40S/50S, 50E/65E)
AT FIRST, RAIN OR FRONTAL SHOWERS CF,.LOC THUNDERSTORM, SNOW IN
SOUTH.
WIND: SOUTH-WESTERLY 7/8, DECREASING 6/7 IN THE SOUTH SOON THEN
NORTH-WESTERN 6/7 OVER SOUTHWESTERN AREA AT END.SEA: VERY ROUGH TO
HIGH, BECOMING VERY ROUGH TO ROUGH IN THE WEST AT END. SOUTHWESTERLY
SWELL 4 TO 7 METERS.
VIS : POOR IN PRECIPITATION.
KER (40S/50S, 65E/80E)
RAIN OR FRONTAL SHOWERS. CF LOC THUNDERSTORM, SNOW IN THE SOUTH.
WIND: NORTH-WESTERLY 7/8 AHEAD OF THE FRONT, BACKING SOUTHWEST 6/7 BEHIND
THE FRONT, THEN 7/8 WITH SEVERE GUSTS AT FIRST DECREASING 5/6 OVER
WESTERN AT END.
SEA : ROUGH TO VERY ROUGH, BECOMING VERY ROUGH TO HIGH SOON. SOUTHWEST SWELL
3 TO 4 METERS IN SOUTHWEST, INCREASING 4/7 METERS FROM THE WEST SOON.
VIS : VERY POOR IN PRECIPITATION.