WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE
30TH OF NOVEMBER 2025 AT 16:30 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 302200 TO 012200 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:
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1. MARION FORTIES EAST: NW to W 35 to 40 in the central parts until mid-
period.
SYNOPTIC CHART 12:00Z
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High 1020 hPa 31s01w, High 1022 hPa 32s62e.
Low 1002 hPa 41s07w, Low 1005 hPa 34s39e.
1. Cold Front: 35s16w 37s13w 38s11w 39s08w into 41s07w
AREA FORECAST:
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ASCENSION (06S/15S, 00E/20W):
WIND : SE to E 10 to 15.
VIS : Good.
ANGOLA (06S/15S, 00E/00N):
WIND : SW 05 to 10 in the north-east, otherwise S to SE 10 to 15.
VIS : Good.
ST HELENA (15S/30S, 00E/20W):
WIND : SE to E 05 to 15, but NW 15 to 25 in the south-west.
VIS : Good, but moderate in light rain in the extreme south-west.
TRADES (15S/30S, 00E/WEST COAST):
WIND : S to SE 15 to 20 reaching 25 to 30 in places in the south-east.
VIS : Good.
TRISTAN (30S/40S, 00E/20W):
WIND : Variable 05 to 10 in the north-east, otherwise NW to W 15 to 25,
reaching 30 in the south-east until mid-period, when it will
reach 25 to 30 in the west.
VIS : Good, but moderate to poor in showers and thundershowers over the
north-west spreading south over the entire western parts by mid-
period.
SEA STATE: 3.0 to 3.5m in the southern parts, with W to SW swell, but NW in
the south-west towards end of period.
CAPE WEST (30S/40S, 00E/20E):
WIND : Variable 05 in the north-west, otherwise W to NW 10 to 20,
reaching 25 in the south-west at first but SE 15 to 25 in
the north-east, becoming S in the south-east by end of period.
VIS : Good, but moderate in showers and rain in places in the south.
SEA STATE: 3.0 to 3.5m in the southern and eastern half, with SW swell.
CAPE EAST (32.5S/40S, 20E/50E):
WIND : N to NW 15 to 25, but W to SW 15 to 25 in the west, and
cyclonic 20 to 30 over the central-north and cyclonic 05 to 15 in
the north-east by end of period when it will become S 10 to 20 in
the south-west.
VIS : Good, but moderate to poor in showers and thundershower in places
in the central-north and east, becoming moderate in the south-
west towards from mid-period.
SEA STATE: 3.0 to 4.0m in the west, spreading to the south-east from mid-
period, with SW swell.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : E to NE 15 to 25 in the eastern parts otherwise SW to S 15 to 25
but W 05 to 15 in the central-north.
VIS : Good, but moderate to poor in showers and thundershowers in the
east and central parts.
SEA STATE: 3.0 to 3.5m in the west, with SW swell.
MOZAMBIQUE CHANNEL:
WIND : Variable 05 to 10 in the central parts, but W to SW 05 to 10 in
the south and east, but NE to E in the north-west.
VIS : Good, but moderate in showers and thundershowers in places in the
north and central parts.
MADAGASCAR EAST (10S/25S, EAST COAST/55E):
WIND : E to NE 10 to 20.
VIS : Moderate in showers and thundershowers in places.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : NW to W 20 to 30 reaching 35 to 40 in the central parts until
mid-period, but SW 20 to 30 in the west.
VIS : Good but moderate in showers and rain and light snow-showers in
the south.
SEA STATE: 3.5 to 4.5m, but 5.5 to 6.5 in the western and south-eastern
parts, reaching 7.0 to 8.0m in the south-west spreading to the
south-east by end of 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)
25/11/30 AT 1640UTC
AVERAGED WIND SPEED ON BEAUFORT SCALE. (Wind gusts may be about 40% stronger than the averages given here).
PART 1: WARNING
Gale force 8 over CRO and KER.
PART 2: GENERAL SYNOPSIS, 25/11/30 AT 1200UTC
- Thundery low 1006 near 34S/38E, very slowly moving Eastwards.
- Low 963 hPa near 57S/42E with cold front associated and axis 39S/48E, 43S/57E, 45S/58E, 52S/59E moving Eastward 15/20kt.
- High 1022 hPa near 32S/62E moving Eastward.
PART 3: FORECAST FOR 24 HOURS FROM 25/11/30 at 1800UTC to 25/12/01 at 1800UTC
WAM (30S/40S, 50E/65E)
Frontal rain or showers over Southern area then thundery squalls by North-Western area.
WIND : Anticlockwise 3 to 5 becoming Northerly 4/5 by Western area.
SEA : Moderate to rough. SW swell 2 to 3 meters.
VIS : Poor in precipitation.
AMS (30S/40S, 65E/80E)
Scattered showers.
WIND : Anticlockwise 3 to 5 over Northern area but Westerly 5 or 6 with
gusts over Southern area.
SEA : Moderate to rough. SW swell 2 to 3 meters.
VIS : Good.
CRO (40S/50S, 50E/65E)
Frontal rain or showers over Northern and Eastern area at beginning then scattered showers.
WIND : W to NW 6 to 7 at times 8. Severe gusts.
SEA : Rough or very rough. SW swell 3 to 5 meters.
VIS : Poor or very poor in precipitation.
KER (40S/50S, 65E/80E)
Frontal rain or showers.
WIND : W to NW 6 to 7 locally 8. Severe gusts.
SEA : Rough to very rough. W swell 3 to 4 meters.
VIS : Poor or very poor in precipitation.