WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE
01st 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 011000 TO 021000 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. MARION FORTIES EAST : W to NW 35 in north-east, elsewhere, W to SW 35
to 45, reaching 50 to 55 in places in the south-
west, spreading to the south-east by mid-period.
SYNOPTIC CHART 06:00Z
=====================
High 1027 hPa 36s23w, High 1029 hPa 29s01w, High 1037 hPa 31s70e.
Low 1003 hPa 49s03w, Low 965 hPa 50s31e, Low 1009 hPa 43s64e.
1. Cold Front: 41s14w 43s05w into 49s03w.
2. Cold Front: 35s12e 39s23e 42s32e 46s39e into 50s31e.
3. Cold Front: 33s50e 38s62e into 43s64e.
AREA FORECAST:
==============
ASCENSION (06S/15S, 00E/20W):
WIND : SE to E 15 to 20.
VIS : Good.
ANGOLA (06S/15S, 00E/00N):
WIND : SE 10 to 20, but S to SW 05 to 15 in the north-east.
VIS : Good.
ST HELENA (15S/30S, 00E/20W):
WIND : Anticyclonic 05 to 15 in the south, otherwise E to SE 15
to 25.
VIS : Good.
TRADES (15S/30S, 00E/WEST COAST):
WIND : S to SE 15 to 25.
VIS : Good.
SEA STATE: 3.0 to 3.5m except in the south-west, with S to SE swell.
TRISTAN (30S/40S, 00E/20W):
WIND : W to NW 15 to 25 in the north and southern parts where it will
become S to SW during the second half of the period,
elsewhere, anticyclonic 05 to 15.
VIS : Good but moderate in showers and rain in the west across the
central to the south-east in the first half of the period.
SEA STATE: 3.0 to 3.5m in the south-east until mid-period, with W to SW
swell.
CAPE WEST (30S/40S, 00E/20E):
WIND : W to NW 15 to 25 from north-west to the south-east, otherwise
SW 10 to 15. It will become S to SW 20 to 30 over the western
half during the second half of the period
VIS : Moderate in showers and rain in the west and south-east, but
over the western half during the second half of the period.
SEA STATE: 3.0 to 4.0m except in the northern parts, reaching 4.5 to 5.5m
in places in the south, with W to SW swell.
CAPE EAST (32.5S/40S, 20E/50E):
WIND : W to NW 15 to 25, but SW 15 to 25 in the south-west, spreading
to the central north during the second half of the period.
VIS : Moderate in showers and rain in the south-west and central
south.
SEA STATE: 3.0 to 4.0m except in the northern parts, reaching 4.5 to 5.0m
in the south-west and south-central parts, with W to SW swell.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : N to NE 10 to 15, but SE 10 to 15 south-west of Madagascar.
VIS : Good.
MOZAMBIQUE CHANNEL:
WIND : E to NE 05 to 15 in the south-west, otherwise S to SW 05 to 15.
VIS : Good.
MADAGASCAR EAST (10S/25S, EAST COAST/55E):
WIND : E to SE 15 to 25, but E to NE 10 to 20 in the south.
VIS : Moderate in showers and rain in places.
SEA STATE: 3.0 to 3.5m except in the south, with E to SE swell.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : W to NW 20 to 30 in the north-west, reaching 35 in north-east
elsewhere, W to SW 35 to 45, reaching 50 to 55 in places in
the south-west, spreading to the south-east by mid-period. It
will become SW 15 to 25 over the area towards the end of the
period.
VIS : Moderate in showers and rain, with snow showers can in the
south-west.
SEA STATE: 3.5 to 4.5m in the north-east, otherwise 5.0 to 6.0m, reaching
7.0 to 9.0m in the west, spreading to the central towards mid-
period, with W to NW swell but SW swell in the west towards
mid-period.
AREA 2:
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MARINE METEOROLOGICAL BULLETIN FROM METEO-FRANCE/LA REUNION ON AREA ACK (AMSTERDAM-CROZET-KERGUELEN)
26/09/01 AT 0600UTC
AVERAGED WIND SPEED ON BEAUFORT SCALE. (WIND GUSTS MAY BE ABOUT 40% STRONGER THAN THE AVERAGES GIVEN HERE).
PART 1: WARNING
- GALE TO SEVERE GALE FORECASTED OVER KER AND CRO.
PART 2: GENERAL SYNOPSIS, 26/09/01 AT 0000UTC
- WAVING FRONT AXIS 33S/50E, 40S/57E, 43S/65E, 42S/73E, WITH A DEEPENING LOW FORECAST TO REACH 1000 HPA NEAR KER- HIGH 1035 HPA CENTERED 32S/70E, SLOW-MOVING.- COLD FRONT COLD FRONT CENTERED AT 43S44E, 50S46E, 57S42E, FORECAST FOR SOUTHWESTERN CRO.
PART 3: FORECAST FOR 24 HOURS FROM 26/09/01 AT 0600UTC TO 26/09/02 AT 0600UTC
WAM (30S/40S, 50E/65E)
FRONTAL RAIN, SHOWERS AND SQUALLS, GRADUALLY EASING
WIND: NORTH TO NORTHWEST 4 TO 6, LOCALLY 7 WITH GUSTS IN THE SOUTHEASTERN
PART OF THE AREA AT FIRST, BECOMING VARIABLE 2 TO 3 IN THE
SOUTHWESTERN PART OF THE AREA.
SEA : MODERATE TO ROUGH FROM NORTH TO SOUTH, LOCALLY VERY ROUGH IN THE
SOUTHEAST AT FIRST.
VIS: POOR IN PRECIPITATION.
AMS (30S/40S, 65E/80E)
SHOWERS BECOMING MORE FREQUENT IN THE SOUTHWEST.
WIND: CLOCKWISE 2 TO 3 IN THE NORTH; NORTHWEST 4 TO 6 ELSEWHERE, LOCALLY
7 IN THE SOUTH, BECOMING VARIABLE 2 TO 4 IN THE SOUTHWEST AT
END.
SEA : MODERATE TO ROUGH FROM NORTH TO SOUTH, OCCASIONALLY VERY ROUGH IN
THE FAR SOUTH. SOUTHWEST SWELL FROM 2 TO 3 METERS.
VIS: POOR IN PRECIPITATION.
CRO (40S/50S, 50E/65E)
FREQUENT SHOWERS IN THE NORTHEAST MOVING EASTWARD; SHOWERS BECOMING MORE FREQUENT IN THE SOUTHWEST.
WIND: WEST 3 TO 5; NORTHWEST 6/7 IN THE NORTHEAST EARLY IN THE PERIOD,
AND NORTHWEST 6/7, OCCASIONALLY 8, SPREADING ACROSS THE REGION FROM
THE SOUTHWEST, LOCALLY 9 IN THE FAR SOUTH WITH STRONG GUSTS.
SEA : ROUGH TO VERY ROUGH, LOCALLY HIGH IN THE SOUTH. SOUTHWEST SWELL
FROM 2 TO 4 METERS AT FIRST.
VIS : POOR IN PRECIPITATION.
KER (40S/50S, 65E/80E)
FRONTAL RAIN AND SHOWERS.
WIND: NORTHWEST TO WEST 3 TO 4 IN THE SOUTH, LOCALLY VARIABLE; NORTHWEST
TO WEST 5 TO 7 IN THE NORTH INCREASING LOCALLY TO 8 TO 9 IN THE
EAST WITH GUSTS.
SEA : VERY ROUGH TO ROUGH, LOCALLY HIGH IN THE EAST. SOUTHWEST SWELL
FROM 3 TO 5 METERS.
VIS: POOR OR VERY POOR IN PRECIPITATION.