WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE
03rd OF OCTOBER 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:
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FORECAST VALID FROM 032200 TO 042200 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: W to NW 35 over the central and southern parts.
2. CAPE WEST: NW to W 35 in the south-west spreading to the south-east by
mid-period.
3. MARION FORTIES EAST: SW to S 35 in the south-east and south-west.
SYNOPTIC CHART 12:00Z
=====================
High 1036 hPa 36s56e, High 1032 hPa 40s17e.
Low 1016 hPa 25s37e. Low 958 hPa 50s14w Low 978 hPa 63s30e
1. Cold Front: 27s20w 34s11w 44s04w 51s08w into 50s14w
2. Cold Front: 43s31e 50s39e 58s44e 64s33e into 63s30e
AREA FORECAST:
==============
ASCENSION (06S/15S, 00E/20W):
WIND : E to SE 15 to 25.
VIS : Good.
ANGOLA (06S/15S, 00E/00N):
WIND : S to SE 05 to 15 but SW 05 to 10 in the north-east.
VIS : Good.
ST HELENA (15S/30S, 00E/20W):
WIND : Anticyclonic 05 to 15 over the central and south-eastern
parts, otherwise SE to S 15 to 25.
VIS : Good but moderate in showers and light rain in places over the
southern half.
SEA STATE: 3.0 to 3.5m in the extreme south-west, with SW swell.
TRADES (15S/30S, 00E/WEST COAST):
WIND : S to SE 10 to 20 but 25 to 30 in the east at times.
VIS : Good.
TRISTAN (30S/40S, 00E/20W):
WIND : W to NW 10 to 20, reaching 25 to 35 over the central and
southern parts.
VIS : Good but moderate to poor in showers and thundershowers in the
east and southern parts, clearing in the south-west by mid-
period.
SEA STATE: 3.0 to 4.0m in the northern parts reaching 5.0 to 6.0m in the
central parts, but 7.5 to 8.5m in the south-west spreading to
the south-east by mid-period, with W to NW swell.
CAPE WEST (30S/40S, 00E/20E):
WIND : S to SW 05 to 15 in the north-east, otherwise NW to W 15 to 25
but 30 to 35 in the south-west spreading to the south-east by
mid-period.
VIS : Good in the north-east, otherwise moderate in showers and
rain.
SEA STATE: 3.0 to 4.0m in the south-west from the evening, with W to SW
swell.
CAPE EAST (32.5S/40S, 20E/50E):
WIND : Variable 05 to 10 in the east, otherwise E to NE 20 to 30, but
SE 15 to 25 in the south-east.
VIS : Good but moderate to poor in showers and thundershowers in the
extreme northern parts and the south-east.
SEA STATE: 3.0 to 3.5m in the western parts, with W to NW swell.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : E to NE 15 to 25 over the central and the east, otherwise SE
to S 05 to 15, but cyclonic 05 to 10 in the north-west.
VIS : Good but moderate to poor in showers and thundershowers in the
north, central parts and the south-west.
SEA STATE: 3.0 to 3.5m in across the south-west, central parts, and the
north-west with E to NE swell.
MOZAMBIQUE CHANNEL:
WIND : Variable 05 to 10 over the central and northern parts, but
cyclonic 05 to 15 in the south-east.
VIS : Good but moderate in showers in the south at first.
MADAGASCAR EAST (10S/25S, EAST COAST/55E):
WIND : E to NE 05 to 10 in the south, otherwise E to SE 10 to 20,
reaching 25 in the extreme north-west.
VIS : Good but moderate in showers in places, but poor in
thundershowers over the western parts.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : W to NW 15 to 25 in the north-east at first, otherwise SW to S
15 to 25 but 30 to 35 in the south-east and south-west,
becoming anticyclonic 05 to 10 central west from mid-period.
VIS : Moderate in showers and rain in the north-east at first,
but poor in snow-showers in the south-east at first, otherwise
good.
SEA STATE: 3.0 to 4.0m reaching 5.5 to 6.5m in the southern parts, with W
to NW swell.
AREA 2:
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MARINE METEOROLOGICAL BULLETIN FROM METEO-FRANCE/LA REUNION ON AREA ACK (AMSTERDAM-CROZET-KERGUELEN)
26/10/03 AT 1600UTC
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 RUUNNING OR EXPECTED OVER KER AND CRO.
PART 2: GENERAL SYNOPSIS, 26/10/03 AT 1200UTC
- A STORMY LOW-PRESSURE SYSTEM OF 1015 HPA NEAR 29S/69E, DEEPENING
SLIGHTLY AS IT MOVES SLOWLY NORTHWARDS ACROSS THE AMS AREA.- A FAIRLY
STRONG TO STRONG WESTERLY FLOW OVER THE SOUTHERN PART OF THE AREA,
LOCALLY VERY STRONG OVER KER WITH A NEW COLD FRONT PASSES THROUGH.- A
HIGH-PRESSURE SYSTEM OF 1035 HPA FIILING OVER WAM NEAR 37S/55E, WITH
A RIDGE OVER THE SOUTH OF AMS.
PART 3: FORECAST FOR 24 HOURS FROM 26/10/03 AT 1800UTC TO 26/10/04
AT 1800UTC
WAM (30S/40S, 50E/65E)
SCATTERED SHOWERS.
WIND: ANTICLOCKWISE FORCE 3 TO 4, INCREASING SOUTHERLY, FORCE 4 TO 6
OVER SOUTHERN AREAS AND SW FORCE 4/5 OVER NORTHENR AT THE END
OF THE FORECAST PERIOD.
SEA : MODERATE TO LOCALLY ROUGH.
VIS : GOOD.
AMS (30S/40S, 65E/80E)
RAIN OR SCATTERED SHOWERS IN NORTH. THUNDERSQUALLS IN NORTH.
WIND: ANTICLOCKWISE 2 TO 4, BUT CLOCKWISE 4 TO 6, AT TIMES 7, OVER FAR
NORTHERN WITH GUSTS.
SEA : ROUGH WITH A SSW SWELL, LOCALLY VEY ROUGH
AND CROSSED OVER FAR NORTHERN.VISI: POOR IN PRECIPITATION.
CRO (40S/50S, 50E/65E)
RAIN OR FRONTAL SHOWERS WITH A NEW FRONT FORMING DURING THE DAY.
WIND: WESTERLY 5 TO 6, OCCASIONALLY FRESHENING TO 7 AHEAD OF A NEW FRONT
DURING THE DAY, VEERING SOUTH-WESTERLY 5 TO 7 BEHIND IT, OCCASIONALLY
8. GUSTS.
SEA : MODERATE TO ROUGH, BUT VERY ROUGH OVER SOUTHERN.
SOUTH-WESTERLY SWELL OF 5 METRES OVER SOUTHERN, EASING TO 2 TO 4
METRES DURING THE DAY.
VIS : POOR DURING RAINFALL.
KER (40S/50S, 65E/80E)
RAIN OR FRONTAL SHOWERS WITH A NEW FRONT FORMING DURING THE DAY.
WIND : WESTERLY 5 TO 6, BUT LOCALLY 7 TO 8. THEN NORTH-WESTERLY 6 TO 8 AHEAD
OF A NEW FRONT, TURNING SOUTH-WESTERLY 7/8 BEHIND IT TOWARDS THE END
OF THE PERIOD. STRONG GUSTS.
SEA : ROUGH TO VERY ROUGH, LOCALLY HIGH
OVER SOUTH-EASTERN. SOUTH-WESTERLY SWELL 4 TO 6 METRES OVER
SOUTHERN.
VIS : POOR DURING RAINFALL.