WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE
09TH OF MARCH 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 091000 TO 101000 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: N to NW 35 to 45 in the south-west at first and towards the end of
the period.
2. MARION FORTIES EAST: W to NW 35 in places in the south until mid-period, but
SW 35 to 40 in the south-west from mid-period.
SYNOPTIC CHART 06:00Z
=====================
High 1031 hPa 36s33e
Low 970 hPa 61s13e, Low 979 hPa 46s31w
1. Cold front: 34s27w 39s22w 46s18w into 47s20w
2. Cold front: 38s62e 44s73e 54s84e 63s87e into 61s59e
AREA FORECAST:
==============
ASCENSION (06S/15S, 00E/20W):
WIND : SE to E 05 to 15.
VIS : Good.
ANGOLA (06S/15S, 00E/00N):
WIND : S to SE 05 to 15, but SW 05 to 15 in the east.
VIS : Good.
ST HELENA (15S/30S, 00E/20W):
WIND : NW 10 to 20 in the south-west, otherwise SE to E 05 to 15.
VIS : Good, but moderate in light rain in places.
TRADES (15S/30S, 00E/WEST COAST):
WIND : S to SE 05 to 15, reaching 20 in places in the south until mid-
period.
VIS : Good, but moderate in light rain over the western parts at first.
SEA STATE: 3.0m in the southern parts at first, with S to SE swell.
TRISTAN (30S/40S, 00E/20W):
WIND : E to NE 05 to 15 in the north-east, otherwise N to NW 20 to 30
reaching 35 to 45 in the south-west at first and towards the end of
the period.
VIS : Good, but moderate to poor in showers and thundershowers in the west
, spreading to the south-central parts towards the end of the period.
SEA STATE: 3.0 to 4.0m in the west, reaching 4.5 to 5.5m in the south-west from
mid-period while spreading to the south-central parts by the end of
the period, but 6.0 to 7.0m south-west by the end of the period, with
NW swell.
CAPE WEST (30S/40S, 00E/20E):
WIND : NW to N 10 to 20 in the south-west, otherwise SE to E 15 to 25
, but variable 05 to 10 in the central and south-eastern parts.
VIS : Good.
SEA STATE: 3.0m in places in the north-east, with SE to E swell.
CAPE EAST (32.5S/40S, 20E/50E):
WIND : E to NE 10 to 20 in the north-west, otherwise anticyclonic 05 to 15
, but S to SE 15 to 25 in the north-east. It will be SW to W 15 to 25
in the south-central and south-eastern parts.
VIS : Good, but moderate to poor in showers and thundershowers in the
extreme north-east.
SEA STATE: 3.0 to 4.0m in the east, with SW swell.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : N to NE 10 to 20 in the east and south-west, otherwise SE 15 to 25
reaching 30 in the north-west at first.
VIS : Moderate to poor in showers and thundershowers, but good in the
south-western part.
SEA STATE: 3.0 to 4.0m, reaching 4.5m in the central parts until mid-period,
with S to SE swell.
MOZAMBIQUE CHANNEL:
WIND : Variable 05 to 10 in the north, otherwise S to SE 15 to 25.
VIS : Moderate to poor in showers and thundershowers in places.
SEA STATE: 3.0 to 4.0m in the south, with S to SE swell.
MADAGASCAR EAST (10S/25S, EAST COAST/55E):
WIND : E to NE 10 to 20.
VIS : Moderate to poor in showers and thundershowers in places.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : W to NW 20 to 30 reaching 35 in places in the south until mid-period,
but SW 20 to 30 in the south-west spreading to the south-east from
mid-period, while reaching 35 to 40 in the south-west from mid-
period.
VIS : Moderate in showers and rain in places at times, with possible
Snow-showers in the southern parts towards the end of the period,
otherwise good.
SEA STATE: 4.0 to 5.0m, reaching 5.5 to 6.5m in the southern parts, 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)
2026/03/09 AT 0600UTC
AVERAGED WIND SPEED ON BEAUFORT SCALE. (WIND GUSTS MAY BE ABOUT 40% STRONGER THAN THE AVERAGES GIVEN HERE).
PART 1: WARNING
- GALE FORCE 8 RUNNING OVER SOUTHERN CRO.
- GALE FORCE 8 EXPECTED LATER OVER SOUTHERN KER.
PART 2: GENERAL SYNOPSIS, 26/03/09 AT 0000UTC
- COLD FRONT (CF) AXIS 34S/50E, 40S/61E, 50S/74E, MOVING STEADILY EASTWARD.
- HIGH PRESSURE AREA 1025 TO 1029 OVER WAM, AMS, NORTHERN CRO AND NORTHEASTERN KER.
PART 3: FORECAST FOR 24 HOURS FROM 26/03/09 AT 0600UTC TO 26/03/10 AT 0600UTC
WAM (30S/40S, 50E/65E)
FRONTAL RAIN AND SHOWERS.
WIND : EASTERLY TO SOUTHEASTERLY 2/4, BECOMING GRADUALLY NORTHWESTERLY 5/6 OVER
FAR SOUTH AT END.
SEA: SLIGHT TO MODERATE OVER NORTHEASTERN AREA, BUT ROUGH TO VERY ROUGH BY
SOUTHWESTERN AREA WITH SW SWELL 3 TO 5 M.
VIS: MODERATE IN PRECIPITATION.
AMS (30S/40S, 65E/80E)
FRONTAL RAIN OVER SOUTHWESTERN AREA, SCATTERED SHOWERS ELSEWHERE.
WIND : ANTICLOCKWISE 2/4, LOCALLY 4/5 OVER NORTHERN AREA AND ALSO IN FRONT OF
CF.
SEA: SLIGHT TO MODERATE, BUT LOCALLY ROUGH TO VERY ROUGH BY SOUTHWESTERN AREA
LATER. SW SWELL 3 TO 5M.
VIS: GOOD TO LOCALLY MODERATE IN SHOWERS.
CRO (40S/50S, 50E/65E)
FRONTAL SHOWERS OVER NORTHEAST AT FIRST, MOVING EASTWARD. RAIN OVER SOUTHERN AREA.
WIND: NORTHWESTERLY 6/7, TILL 8 OVER SOUTH, WITH STRONG GUSTS.
LOCALLY VARIABLE 3/5 OVER FAR NORTHEAST.
SEA: MODERATE TO ROUGH AT FIRST OVER FAR NORTHEAST, BECOMING VERY ROUGH TO HIGH
EVERYWHERE. CROSS SEA WITH SW SWELL INCREASING 4 TO 6 M.
VIS: POOR IN PRECIPITATION.
KER (40S/50S, 65E/80E)
RAIN AND FRONTAL SHOWERS MOVING EASTWARD. RAIN OVER SOUTHERN AREA AT END.
WIND: NORTHWESTERLY 4/6, INCREASING 7/8 LATER BY SOUTHWESTERN AREA WITH STRONG
GUSTS, BUT LOCALLY VARIABLE AND WEAK NEAR CF.
SEA: MODERATE TO ROUGH, BECOMING SOON VERY ROUGH TO HIGH BY SOUTHWESTERN AREA.
CROSS SEA WITH WSW SWELL 4 TO 6 M.
VIS: POOR IN PRECIPITATION.