WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE
12TH OF JANUARY 2026 AT 17:00 UTC.
FOR SOUTH-EAST SECTOR OF METAREA. VII, PREPARED BY REUNION, SEE AREA 2
BELOW.
NOTE: WX OBSERVATIONS.
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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 122200 TO 132200 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: W to NW 35 in the east until mid-period.
SYNOPTIC CHART 12:00Z
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High 1022 hPa 27s22w, High 1030 hPa 38s54e
Low 994 50s02e, Low 1001 48s32e, Low 1009 hPa 34s27e
1. Cold front: 39s08w 41s01w 45s01e 47s03e into 50s02e
2. Cold front: 38s16e 42s13e 45s28e into 48s32e
AREA FORECAST:
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ASCENSION (06S/15S, 00E/20W):
WIND : SE to E 05 to 15 reaching 20 in the south-west.
VIS : Good.
ANGOLA (06S/15S, 00E/00N):
WIND : S to SE 05 to 15, but SW 05 to 10 in the east.
VIS : Good.
ST HELENA (15S/30S, 00E/20W):
WIND : S to SW 05 to 15 in the south, otherwise E to SE 10 to
20.
VIS : Good, becoming moderate in showers and rain in the extreme south.
TRADES (15S/30S, 00E/WEST COAST):
WIND : S to SE 10 to 20, reaching 25 in the south-east until mid-
period.
VIS : Good.
TRISTAN (30S/40S, 00E/20W):
WIND : Cyclonic 20 to 30 in the west, drifting the central parts by mid-
period, otherwise S to SE 15 to 25 but NW 15 to 25 in the north.
VIS : Good, but moderate to poor in the central parts.
SEA STATE: 3.0 to 3.5m in the central parts, with S to SW swell.
CAPE WEST (30S/40S, 00E/20E):
WIND : Anticyclonic in the north-west, and S to SE 10 to 20 in the
north-east otherwise NW to W 15 to 25, but SW to S 10 to
20 in the south-west drifting to the east from mid-
period.
VIS : Good, but moderate in showers and rain in the south.
SEA STATE: 3.0m in the south, with S to SW swell.
CAPE EAST (32.5S/40S, 20E/50E):
WIND : N to NE 10 to 20 reaching 25 in the north-west, but W to SW 05 to
15 in the west.
VIS : Good, but moderate to poor in showers and thundershowers in the
central-south.
SEA STATE: 3.0m, with S to SW swell.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : E to NE 10 to 20 reaching 25 in the north but 20 to 30
in the south-west at first.
VIS : Moderate to poor in showers and thundershowers in places in the
North and west, otherwise good.
SEA STATE: 3.0 to 4.0m, with S to SE swell.
MOZAMBIQUE CHANNEL:
WIND : Variable 05 to 10 in the extreme north and south, otherwise E
to NE 10 to 20.
VIS : Good but moderate to poor in showers and thundershowers in the
north and east at times and in the south by end of the period.
MADAGASCAR EAST (10S/25S, EAST COAST/55E):
WIND : E to SE 10 to 20.
VIS : Moderate in showers and thundershowers in places.
SEA STATE: 3.0m in the south, with SE swell.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : W to NW 20 to 30, reaching 35 in the east until mid-period while
becoming SW 10 to 20 in the south, drifting east wards
it will become anticyclonic 05 to 15 in the south-west.
VIS : Good, but moderate to poor in showers and thundershowers in the
north and east, clearing from the south.
SEA STATE: 3.0 to 4.0m, reaching 5.0m in the south-east until 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)
26/01/12 AT 1600UTC
AVERAGED WIND SPEED ON BEAUFORT SCALE. (WIND GUSTS MAY BE ABOUT 40%
STRONGER THAN THE AVERAGES GIVEN HERE).
PART 1: WARNING
- GALE CONTINUING OR EXPECTED OVER CRO AND KER.
PART 2: GENERAL SYNOPSIS, 26/01/12 AT 1200UTC
- LARGE HIGH 1030 NEAR 38S/56E, SLOWLY MOVING EASTWARD.
- SEQUENCE OF 2 WARM FRONTS OVER SOUTH OF CRO, THEN KER.
PART 3: FORECAST FOR 24 HOURS FROM 26/01/12 AT 1800UTC TO 26/01/13
AT 1800UTC
WAM (30S/40S, 50E/65E)
SCATTERED SHOWERS IN NORTH.
WIND: ANTICLOCKWISE 2 TO 4 IN SOUTH, BUT EAST 3 TO 5 IN NORTH.
SEA: MODERATE OR ROUGH IN LONG SW SWELL.
VISI: MODERATE OR POOR IN PRECIPITATION.
AMS (30S/40S, 65E/80E)
SCATTERED SHOWERS.
WIND: ANTICLOCKWISE 2 TO 4 IN SOUTH, BUT EAST OR SOUTHEAST 3 TO 5 IN NORTH.
SEA: MODERATE OR ROUGH IN LONG SW SWELL.
VISI: MODERATE OR POOR IN PRECIPITATION.
CRO (40S/50S, 50E/65E)
FRONTAL RAIN OR SHOWERS.
WIND: NORTHWEST INCREASING 6 OR 7, THEN TEMPORARILY 8 SOON,
DECREASING WEST 5 OR 6 AT END. SEVERE GUSTS.
SEA: ROUGH OR VERY ROUGH, CROSSED IN LONG SW SWELL, BECOMING
OCCASIONALLY HIGH IN EAST LATER.
VISI: POOR OR VERY POOR IN PRECIPITATION.
KER (40S/50S, 65E/80E)
FRONTAL RAIN OR SHOWERS.
WIND: WEST 4 OR 5 IN NORTH, BUT 6 OR 7 IN SOUTH, THEN AT TIMES 8
LATER. SEVERE GUSTS.
SEA: ROUGH OR VERY ROUGH, CROSSED IN LONG SW SWELL, LOCALLY HIGH IN SOUTH.
VISI: POOR OR VERY POOR IN PRECIPITATION.