WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE
12TH OF MARCH 2026 AT 08:30 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 121000 TO 131000 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. CAPE EAST : NE 35 at times in the extreme north-west.
SYNOPTIC CHART 06:00Z
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High 1024 hPa 39s36e, High 1019 35s06e.
1. Cold Front: 38s02e 42s14e 52s31e 59s44e 64s39e into 64s19e.
AREA FORECAST:
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ASCENSION (06S/15S, 00E/20W):
WIND : SE to S 10 to 20.
VIS : Good.
SEA STATE: 3.0m in the south-west from mid-period, with SW swell.
ANGOLA (06S/15S, 00E/00N):
WIND : S to SE 05 to 15, but SW 05 to 15 in the extreme east.
VIS : Good.
ST HELENA (15S/30S, 00E/20W):
WIND : s to SE 05 to 15, reaching 20 to 25 in the extreme south-west.
VIS : Good, but moderate to poor in showers and thundershowers in the
extreme south-west.
SEA STATE: 3.0 to 3.5m, with SW to S swell.
TRADES (15S/30S, 00E/WEST COAST):
WIND : S to SE 10 to 20 but variable 05 to 10 in the extreme east.
VIS : Good.
SEA STATE: 3.0m in the south-west from mid-period, with SW swell.
TRISTAN (30S/40S, 00E/20W):
WIND : Variable 05 to 10 in the extreme south-east and extreme north-east,
otherwise S to SE 10 to 20 reaching 25 in places over the extreme
northern parts at times.
VIS : Good, but moderate to poor in showers and thundershowers in the
north-east.
SEA STATE: 3.0 to 4.0m, with SW swell.
CAPE WEST (30S/40S, 00E/20E):
WIND : Anticyclonic 05 to 15.
VIS : Good, but moderate in showers and rain in the extreme south-west
towards mid-period.
SEA STATE: 3.0 to 4.0m in the west, spreading to the south-east from mid-period,
with SW to W swell.
CAPE EAST (32.5S/40S, 20E/50E):
WIND : S to SW 15 to 25 in the east, but N to NE 15 to 25 in the west
reaching 30 to 35 at times in the extreme north-west, otherwise anti-
cyclonic 05 to 15.
VIS : Good.
SEA STATE: 3.0 to 3.5m, with SW to S swell in the east but NE swell in the west.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : E to NE 15 to 25 over the western half, reaching 30 at times in
places, otherwise S to SE 15 to 25.
VIS : Good, but moderate in showers and thundershowers in the extreme
north-west.
SEA STATE: 3.0 to 3.5m, with S to SE swell.
MOZAMBIQUE CHANNEL:
WIND : S to SE 10 to 20 in the south, reaching 25 to 30 in the south-east
until mid-period, otherwise N to NE 10 to 20.
VIS : Good in the east, otherwise moderate to poor in showers and
thundershowers.
SEA STATE: 3.0 to 3.5m in the south, with S to SE swell.
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 from mid-period, with S swell.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : Anticyclonic 05 to 15 in the north, otherwise W to NW 15 to 25
reaching 30 at times in the south-west.
VIS : Good, but moderate in showers and rain in the south-west from mid-
period, spreading to the south-east by the end of the period.
SEA STATE: 3.0 to 3.5m, except in the north-west, 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)
26/03/12 AT 0400UTC
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, 26/03/12 AT 0000UTC
- LOW 1009 NEAR 39S/74E, STATIONARY.
- HIGH 1027 OVER WESTERN OF WAM AND CRO, SLOWLY MOVING EASTWARD.
PART 3: FORECAST FOR 24 HOURS FROM 26/03/12 AT 0600UTC TO 26/03/13 AT 0600UTC
WAM (30S/40S, 50E/65E)
SCATTERED SHOWERS OR RAIN.
WIND : SOUTHERLY 4/5.
SEA: ROUGH. SW SWELL 2 TO 4 M.
VIS: MODERATE OR POOR IN PRECIPITATIONS.
AMS (30S/40S, 65E/80E)
RAIN.
WIND : CLOCKWISE 4/6 LOCALLY 7 S 7 OVER SOUTHERN.
SEA: ROUGH. SW SWELL 2 TO 4 M.
VIS: POOR IN PRECIPITATIONS.
CRO (40S/50S, 50E/65E)
RAIN OVER NORTHEASTERN AT FIRST.
WIND: ANTICLOCKWISE 3/5 LOCALLY W 6 OVER SOUTHERN.
SEA: ROUGH. SW SWELL 2 TO 4 M.
VIS: GOOD, LOCALLY POOR OVER NORTHEASTERN AT FIRST.
KER (40S/50S, 65E/80E)
RAIN OVER FAR NORTHEASTERN, SCATTERED SHOWERS ELSEWHERE.
WIND: ANTICLOCKWISE 3/5.
SEA: VERY ROUGH AT FIRST BECOMING ROUGH. W SWELL 3 TO 5 M DECREASING
2 TO 4 M.
VIS: POOR OVER FAR NORTHEASTERN, GOOD ELSEWHERE.