WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE
05th OF SEPTEMBER 2026 AT 16:45 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 052200 TO 062200 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: W to SW 35 in the south and south-east, spreading to the
eastern parts from mid-period.
2. MARION FORTIES EAST: W to SW 35 to 45 in the western half, spreading
to the eastern half by mid-period.
SYNOPTIC CHART 12:00Z
=====================
High 1036 hPa 41s09e.
Low 980 hPa 52s32e, Low 996 hPa 42s24e
1. Cold Front: 38s24e 40s32e 44s37e into 52s32e.
2. Cold Front: 29s29w 33s25w 37s22w into 42s24e
AREA FORECAST:
==============
ASCENSION (06S/15S, 00E/20W):
WIND : SE to E 05 to 15.
VIS : Good, but moderate in light showers for the first half of the
period.
ANGOLA (06S/15S, 00E/00N):
WIND : S to SE 10 to 20, but variable 05 to 15 in the south-east
until mid-period.
VIS : Good.
ST HELENA (15S/30S, 00E/20W):
WIND : E to NE 10 to 20, but variable 05 to 15 in the east and
central parts, otherwise N to NW 15 to 25 in the south-west.
VIS : Good, but moderate in showers and thundershowers in the south
and central parts until mid-period.
SEA STATE: 3.0m in the south and east, but in the south-west from mid-
period, with SE swell.
TRADES (15S/30S, 00E/WEST COAST):
WIND : S to SE 10 to 20 in the south until mid-period, otherwise
variable 05 to 15.
VIS : Good.
SEA STATE: 3.0 to 3.5m in the south, reaching 4.0 to 5.0m in the south
for the first half of the period, with S to SE swell.
TRISTAN (30S/40S, 00E/20W):
WIND : N to NW 15 to 25 reaching 30 in the north-west, south-west and
south.
VIS : Good but moderate to poor in showers and thundershowers in the
south and western parts.
SEA STATE: 3.0 to 4.0m, with SW swell, but NW in the south-west.
CAPE WEST (30S/40S, 00E/20E):
WIND : S to SE 15 to 25 reaching 30 in the east, but N to NE 05 to 15
in the south-west and west becoming NW 10 to 20 in the south-
west from mid-period.
VIS : Good.
SEA STATE: 3.0 to 4.0m, with S to SE swell.
CAPE EAST (32.5S/40S, 20E/50E):
WIND : E to NE 10 to 20 in the north-west and west, reaching
otherwise W to SW 15 to 25, reaching 30 to 35 in the south and
south-east, spreading to the eastern parts from mid-period.
VIS : Good, but moderate in showers in the south, spreading to the
eastern parts towards mid-period.
SEA STATE: 3.0 to 4.0m, but 5.0 to 6.0m in the southern parts reaching
7.0 to 8.0m from the second half of the period, with S to SW
swell.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : N to NW 10 to 20 in the north-east until mid-period, otherwise
SE to S 10 to 20 reaching 25 to 30 in the north-west from mid-
period but SW 10 to 20 in the south and south-east, reaching
25 from mid-period.
VIS : Good, but moderate in showers and rain in the northern parts
and south-west.
SEA STATE: 3.0 to 4.0m, reaching 4.5 to 5.0m in the south and south-east
towards the end of the period, with S to SW swell.
MOZAMBIQUE CHANNEL:
WIND : S to SE 05 to 15 in the south and central parts, reaching 25 in
the south-east from mid-period, otherwise variable 05 to 15.
VIS : Good but moderate in showers in the south-west.
SEA STATE: 3.0m in the south, spreading to the central parts from mid-
period, with S to SW swell.
MADAGASCAR EAST (10S/25S, EAST COAST/55E):
WIND : E to SE 10 to 20 in the north, otherwise variable 05 to 15 but
NE 05 to 15 in the south-west.
VIS : Good, but moderate in rain and showers in places for the first
half of the period.
SEA STATE: 3.0 to 3.5m in the south from mid-period, with W to SW swell.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : W to SW 20 to 30 reaching 35 to 45 in the western half,
spreading to the eastern half by mid-period.
VIS : Moderate in rain and showers, but in rain and snow-showers in
the south, clearing from the west from mid-period.
SEA STATE: 4.0 to 5.0m in the south-east at first, otherwise 5.5 to 6.5m
reaching 7.5 to 9.5m over the western part spreading to
the eastern part from mid-period, with W to SW swell.
AREA 2:
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MARINE METEOROLOGICAL BULLETIN FROM METEO-FRANCE/LA REUNION ON AREA
ACK (AMSTERDAM-CROZET-KERGUELEN)
26/09/05 AT 1600UTC
AVERAGED WIND SPEED ON BEAUFORT SCALE. (WIND GUSTS MAY BE ABOUT 40%
STRONGER THAN THE AVERAGES GIVEN HERE).
PART 1: WARNING
- A STRONG GALE FORCE 9 RUNNING OVER KER AND EXPECTED OVER CRO.- GALE
FORCE 8 EXPECTED OVER WAM AND AMS.
PART 2: GENERAL SYNOPSIS, 26/09/05 AT 1200UTC
- COLD FRONT AXIS: 30S/54E, 31S/60E, 33S/65E, 35S/70E, 40S/75E,
45S/80E MOVING EAST-SOUTHEASTWARD VERY QUICKLY.- HIGH ARRIVING OVER
NORTHERN WAM.
PART 3: FORECAST FOR 24 HOURS FROM 26/09/05 AT 1800UTC TO 26/09/06
AT 1800UTC
WAM (30S/40S, 50E/65E)
RAIN, SHOWERS AND FRONTAL SQUALLS WITH A COLD FRONT, FOLLOWED BY A
NEW FRONTAL BOUNDARY OVER THE SOUTHERN REGION.
WIND : HIGH-PRESSURE CONDITIONS, FORCE 3 TO 5 OVER NORTHERN REGION,
FRESHENING FORCE 5 TO 6 FROM THE WEST OVER SOUTHERN REGION. THEN
NORTH-WESTERLY, FORCE 6 TO 8, AHEAD OF A NEW FRONT OVER SOUTHERN
REGION, VEERING WEST FORCE 7/8 IN AT THE END OF THE FORECAST PERIOD.
SEA : ROUGH TO HIGH FROM NORTH TO SOUTH. LONG SOUTH-WESTERLY SWELL
BETWEEN 4 AND 6 M.
VISIBILITY : POOR TO VERY POOR DURING RAINFALL.
AMS (30S/40S, 65E/80E)
SHOWERS AND SQUALLS.
WIND : NORTH-WESTERLY 6 TO 7, LOCALLY 8 AHEAD OF
THE FRONT; VEERING SOUTH-WESTERLY 7 TO 8 BEHIND THE FRONT.
ANTICLOCKWISE FORCE 3 TO 4 OVER NORTHERN AND WEST FORCE 4 TO 5 OVER
SOUTHERN, THEN NORTH-WESTERLY FORCE 5 TO 7, LOCALLY FORCE 8, FROM
NORTH TO SOUTH TOWARDS AT THE END OF THE PERIOD. STRONG GUSTS.
SEA : ROUGH TO HIGH FROM NORTH TO SOUTH. LONG SOUTH-WESTERLY SWELL, 4
TO 6M.
VISIBILITY : POOR TO VERY POOR DURING RAINFALL.
CRO (40S/50S, 50E/65E)
SHOWERS AND SQUALLS AS A NEW WEATHER FRONT MOVES IN.WIND: WESTERLY 7
TO 8, LOCALLY 9, LATER SETTLING TO NORTH-WESTERLY 7 TO 8, LOCALLY 9,
IN THE WESTERN AREAS, THEN SHIFTING SOUTHERLY 7 TO 9 IN THE WESTERN
AREAS BY THE END OF THE PERIOD. VIOLENT GUSTS.SEA : VERY ROUGH TO
ROUGH. LONG SWELLS FROM THE SOUTH-WEST, 4 TO 6 M.VISIBILITY: POOR TO
VERY POOR DURING RAINFALL.
KER (40S/50S, 65E/80E)
SHOWERS AND SQUALLS.
WIND: NW 7 OR 8, LOCALLY 9, AHEAD THE FRONT, BACKING SOUTH-WEST 7 TO
8 BEHIND, LOCALLY 9 LATER. NORTH-WEST 6 TO 7
BY WESTERN AT END.VIOLENT GUSTS.
SEA: VERY ROUGH TO HIGH. LONG SW SWELL 4 TO 6 M.
VISI: POOR OR VERY POOR IN PRECIPITATION.