WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE
27TH OF JANUARY 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 272200 TO 282200 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: N to NW 35 in the south-western parts towards the
end of the period.
SYNOPTIC CHART 12:00Z
=====================
High 1020 hPa 35s35w, High 1024 hPa 40s57e
Low 976 hPa 56s39e
COLD Front 39s36e, 44s43e, 52s45e into 56s39e
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 : S to SE 10 to 15, but SW 05 to 10 in the north-east.
VIS : Good.
ST HELENA (15S/30S, 00E/20W):
WIND : E to SE 05 to 15, but N to NW 10 to 20 in the south and south-
east.
VIS : Good, but moderate in showers and thundershowers in the
south-west, drifting to the south from the second half of the
period.
TRADES (15S/30S, 00E/WEST COAST):
WIND : S to SE 10 to 20 reaching 25 in the south-east, but
variable 05 to 10 in the south-west.
VIS : Good.
SEA STATE: 3.0m in the south-east from mid-period, with S swell.
TRISTAN (30S/40S, 00E/20W):
WIND : cyclonic 15 to 25, but variable 05 to 15 in the south and south-
east. It will become W to SW 15 TO 25 in the south-west by mid-
period, spreading to the southern parts from the second half of
the period.
VIS : Good, but moderate to poor in showers and thundershowers in
the north-western and central parts, spreading to the eastern
parts from the first half of the period.
SEA STATE: 3.0m in the central and eastern parts from mid-period, with SW
swell.
CAPE WEST (30S/40S, 00E/20E):
WIND : SW to W 15 to 25 in the south, otherwise anticyclonic 05 to 10 in
the north-west and north, but S to SE 10 to 20 in the north-east.
It will become N to NW 10 to 20 in the west from mid-period.
VIS : Good becoming moderate showers and thundershowers in the west,
spreading to the south-west from the second half of the period.
SEA STATE: 3.0m but 4.0 to 4.5m in the southern parts, subsiding from the
west from the second half of the period, with SW swell.
CAPE EAST (32.5S/40S, 20E/50E):
WIND : W to SW 15 to 25 in the south-west, otherwise anticyclonic 05 to
15 reaching 20 in the southern parts but E to SE 10 to 20 in the
north-west towards mid-period.
VIS : Good, but moderate in showers and thundershowers in places over
the north-western, central and southern parts.
SEA STATE: 3.0 to 4.0m in the western and southern parts with S to SW swell,
but with E to NE swell in the north-east.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : E to SE 15 to 25, but NE 10 to 20 in the west reaching 25 in the
south-west from mid-period.
VIS : Good, but moderate to poor in showers and thundershowers in the
eastern and central parts.
SEA STATE: 3.0m in the south-east and south-west for the first half of the
period, with S to SE swell.
MOZAMBIQUE CHANNEL:
WIND : NW 15 to 25 in the north, otherwise S to SE 10 to 20.
VIS : Good, but moderate to poor in showers and thundershowers in
the northern and central parts.
MADAGASCAR EAST (10S/25S, EAST COAST/55E):
WIND : E to NE 10 to 20 in the south, otherwise cyclonic 10 to 20.
VIS : Moderate to poor in showers and thundershowers.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : N to NW 20 to 30 reaching 35 in the south-western parts
towards the end of the period.
VIS : Good, but moderate in showers and thundershowers in the eastern
and north-eastern parts for the first half of the period, as well
as the south-western parts from the second half of the period.
SEA STATE: 3.0 to 4.0m, reaching 4.5 to 5.0m in the south-west towards the
end of the 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)
26/01/27 AT 1600UTC
AVERAGED WIND SPEED ON BEAUFORT SCALE. (Wind gusts may be about 40% stronger than the averages given here).
PART 1: WARNING
- Nil.
PART 2: GENERAL SYNOPSIS, 26/01/27 AT 1200UTC
- Low 1015 hPa near 42S/84E associated with a weak cold front (CF) axis on 42S/84E, 37S/75E, 34S/68E moving eastward at 15/20 kt.
- Convergence line axis on 29S/64E, 31S/60E, slow-moving.
- High 1027 hPa near 39S/57E, slow-moving
- Low 968 hPa near 57S/38E associated with a cold front (CF) axis on 59S/38E, 52S/46E, 42S/39E, 34S/26E moving south-eastward at 20/25 kt.
PART 3: FORECAST FOR 24 HOURS FROM 26/01/27 at 1800UTC to 26/01/28 at 1800UTC
WAM (30S/40S, 50E/65E)
Showers and locally stormy squalls under the convergence line.
WIND: E to SE 4/5 locally 6, setting up northerly 2/3 over south-western
area.
SEA : moderate to rough, becoming moderate.
VIS : very poor in precipitations.
AMS (30S/40S, 65E/80E)
Light frontal showers under CF.
WIND: S to SE 3/4 locally 5 over southern area, variable and light
elsewhere.
SEA : moderate. SW swell of around 1.5 metres.
VIS : poor in precipitations.
CRO (40S/50S, 50E/65E)
Rain, squalls and frontal showers under CG.
WIND: NW 4 to 6 from east to west ahead of the front, decreasing to NW 3/4
behind. Anticlockwise 2 to 4 over north-eastern area.
SEA : moderate to rough from east to west. Westerly swell 2/3m.
VIS : poor in precipitations.
KER (40S/50S, 65E/80E)
Rain, squalls and frontal showers under CG over southern areas. Rare showers elsewhere.
WIND: anticlockwise 3/4 over northern area, but westerly 4 to 5 over
southern area.
SEA : moderate, locally rough over southern area. South-westerly swell of
around 2 metres.
VIS : poor in precipitations.