WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE
07th 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:
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FORECAST VALID FROM 071000 TO 081000 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. TRISTAN : NW 35 to 40 over the central parts and the southern parts.
2. MARION FORTIES EAST : W to SW 35 in the south, while spreading to the
south-east from mid-period.
SYNOPTIC CHART 06:00Z
=====================
High 1038 hPa 38s32e High 1024 hPa 28s01w
Low 984 hPa 41s18w, Low 992 hPa 63s23e, Low 953 hPa 64s07e
1. Cold Front: 24s25w 31s19w 36s14w into 41s18w
2. Cold Front: 55s31e 58s30e 63s19e 64s06e into 64s07e
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.
VIS : Good.
ST HELENA (15S/30S, 00E/20W):
WIND : SE to E to 10 to 20 in the north-east, but anticyclonic 05 to
10 in the south-east, otherwise NW to W 10 to 20, reaching 25
to 30 in places in the south.
VIS : Good but moderate in showers and thundershowers in the south-
West, spreading to the central parts towards the end of the
period.
SEA STATE: 3.0 to 3.5m in the south-west spreading to the east by the end
of the period, with NW swell in the south-west.
TRADES (15S/30S, 00E/WEST COAST):
WIND : Variable 05 to 10, but S to SE 05 to 15 in the north.
VIS : Good.
TRISTAN (30S/40S, 00E/20W):
WIND : NW 15 to 25 reaching 30 to 40 over the central parts and the
southern parts.
VIS : Good but moderate to poor in showers and thundershowers in the
south-west, and across from the central north to the south-
east.
SEA STATE: 3.0 to 4.0m in the west and southern parts, with W to NW
swell.
CAPE WEST (30S/40S, 00E/20E):
WIND : Variable 05 to 10 in the north-east, otherwise NW 15 to 25,
reaching 30 in the south-west from mid-period.
VIS : Good, but moderate in showers in the south-west from mid-
period.
SEA STATE: 3.0 to 3.5m over the south-western parts, with S to SE swell.
CAPE EAST (32.5S/40S, 20E/50E):
WIND : Anticyclonic 05 to 10 in the north-east, otherwise NE to N 15
to 25, but NW to W 05 to 15 in the south-west.
VIS : Good.
SEA STATE: 3.5 to 4.5m reaching 5.0 to 6.0m over the central parts, but
6.5 to 7.5m in the eastern parts at first, with SW swell.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : E to SE 10 to 20, reaching 25 to 30 in the northern parts, but
E to NE 15 to 25 in the south-west towards the end of the
period.
VIS : Good, but moderate in showers and rain in the northern parts
until mid-period.
SEA STATE: 3.0 to 4.0m, reaching 4.5 to 5.5m in the east, but 6.0m in the
extreme south-east at first, with S to SW swell.
MOZAMBIQUE CHANNEL:
WIND : Variable 05 to 10 in the north-east, otherwise S to SE 10 to
20, reaching 25 to 30 in the south-east.
VIS : Good but moderate in showers and rain in the south at times.
SEA STATE: 3.0 to 3.5m in the south and central parts, with S to SE
swell.
MADAGASCAR EAST (10S/25S, EAST COAST/55E):
WIND : S to SE 15 to 25, reaching 30 in the southern parts.
VIS : Good, but moderate in rain and showers in places south
spreading to the central and north-western parts from mid-
period.
SEA STATE: 3.0 to 4.0m in the north, otherwise 4.5 to 5.5m, with S to SE
swell.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : W to SW 15 to 25, reaching 30 to 35 in the south, while
spreading to the south-east from mid-period.
VIS : Good but moderate in showers and rain in the south, clearing
in the south-west from mid-period.
SEA STATE: 3.0 to 4.0m reaching 5.0 to 6.0m over the south-eastern parts,
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)
26/09/07 AT 0600UTC
AVERAGED WIND SPEED ON BEAUFORT SCALE. (WIND GUSTS MAY BE ABOUT 40%
STRONGER THAN THE AVERAGES GIVEN HERE).
PART 1: WARNING
- STRONG GALE FORCE 9 OVER KER AND OVER CRO.- GALE FORCE 8 OVER WAM
AND AMS.
PART 2: GENERAL SYNOPSIS, 26/09/07 AT 0000UTC
- LOW AT 960 HPA NEAR 52S/64E, MOVING SOUTHEASTWARD.- ASSOCIATED COLD
FRONT CF AXIS 36S/58E, 39S/65E, 49S/70E, 53S/66E, MOVING
SOUTHEASTWARD.- HIGH AT 1035 HPA NEAR 39S/30E.
PART 3: FORECAST FOR 24 HOURS FROM 26/09/07 AT 0600UTC TO 26/09/08 AT
0600UTC
WAM (30S/40S, 50E/65E)
RAIN, SHOWERS, AND FRONTAL SQUALLS UNDER CF, SCATTERED SHOWERS
LATER.
WIND : W THEN SW, 6 TO 8 FROM NORTH TO SOUTH WITH GUSTS. ANTICLOCKWISE 3
TO 4 FROM THE WEST LATER.
SEA : VERY ROUGH TO HIGH LOCALLY VERY HIGH OVER SOUTHERN. A LONG SW
SWELL 5 TO 7 M ARRIVING FROM THE WEST.
VIS : POOR TO VERY POOR UNDER PRECIPITATIONS.
AMS (30S/40S, 65E/80E)
RAIN, SHOWERS, AND FRONTAL SQUALLS UNDER CF.WIND : NW 6 TO 7
LOCALLY 8 WITH GUSTS AHEAD THE FRONT, BACKING W THEN SW 6 TO 7
LOCALLY 8 BEHIND.
SEA : VERY ROUGH TO HIGH FROM THE SOUTHWEST. LONG SW SWELL, 4
TO 6 METERS.VISIBILITY : POOR TO VERY POOR UNDER PRECIPITATIONS.
CRO (40S/50S, 50E/65E)
RAIN AND THUNDERSTORMS ASSOCIATED WITH CF MOVING EASTWARD THEN
SCATTERED SHOWERS.
WIND: SW 7 TO 8, LOCALLY 9 WITH VIOLENT GUSTS VEERING W 6 TO 7 FROM THE
WEST LATER.SEA : HIGH TO VERY HIGH, BECOMING VERY ROUGH TO HIGH
LATER. ARRIVAL OF A LONG SW SWELL 5 TO 7 METERS.
VIS : POOR TO VERY POOR UNDER PRECIPITATIONS.
KER (40S/50S, 65E/80E)
RAIN AND THUNDERSTORMS UNDER CF.
WIND: NW 7 TO 8 AHEAD THE FRONT, TEMPORARILY WEAKENING 5 TO 7 BEHIND
THE FRONT, THEN BACKING SW TO W 7 TO 8 LOCALLY 9. VIOLENT GUSTS.
SEA : VERY ROUGH TO HIGH. W SWELL 4 To 5 METERS INCREASING 5 TO7 METERS
LATER.
VIS : POOR OR VERY POOR IN PRECIPITATIONS.=