Bulletinset for METAREA 7
Edition date (UTC): 2026-03-18 05:20:32
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HIGH SEAS FORECAST
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FQZA31 FAPR 171630



WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII.

ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE

17TH OF MARCH 2026 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 172200 TO 182200 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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Nil.





SYNOPTIC CHART 12:00Z

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High 1031 hPa 45s15w, High 1027 hPa 38s67e



Low 1010 hPa 29s02e, Low 901 hPa 50s54e.



1. Cold Front: 38s34e 40s39e 42s45e 45s50e 49s54e into 50s54e.





AREA FORECAST:

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ASCENSION (06S/15S, 00E/20W):

WIND     : E to SE 05 to 15.

VIS      : Good.



ANGOLA (06S/15S, 00E/00N):

WIND     : S to SE 05 to 15, but SW to W 05 to 15 in the east.

VIS      : Good, but moderate in showers and thundershowers in the north-east.



ST HELENA (15S/30S, 00E/20W):

WIND     : NE 15 to 25 in the west, reaching 30 in the south-west, otherwise E

           to SE 05 to 10.

VIS      : Good, but moderate to poor in showers and thundershowers in the

           south-west.

SEA STATE: 3.0m in the south-east until mid-period, and in the south-west,

           with S to SE swell, but NE in the south-west.





TRADES (15S/30S, 00E/WEST COAST):

WIND     : S to SW 05 to 15, but SE 05 to 15 in the extreme south-west.

VIS      : Good.



TRISTAN (30S/40S, 00E/20W):

WIND     : NE 15 to 25 in the west, reaching 30 in the north-west, otherwise SE

           To E 15 to 25.

VIS      : Good, but moderate to poor in showers and thundershowers in the

           north-west.

SEA STATE: 3.0 m in the west and north-east, with SE swell but with NE

           swell in the west.



CAPE WEST (30S/40S, 00E/20E):

WIND     : SE to E 15 to 25.

VIS      : Good, but moderate to poor in showers and thundershowers in the

           north-west into south-east.

SEA STATE: 3.0 to 3.5m in the north-west and south-east, with SE to S swell.



CAPE EAST (32.5S/40S, 20E/50E):

WIND     : S to SE 15 to 25 in the west and  south-central, otherwise N to NE 10

           to 20 becoming SW 05 to 15 in the north-west from mid-period.

VIS      : Good, but moderate to poor in showers and thundershowers in the

           central-south and west.

SEA STATE: 3.0m in the west from mid-period.



DURBAN EAST (32.5S/25S, EAST COAST/55E):

WIND     : E to NE 15 to 25 reaching 30 in the central north at times.

VIS      : Good, but moderate in showers and thundershowers over the western

           half.

SEA STATE: 3.0 to 3.5m in the central and eastern parts, with E to SE swell.



MOZAMBIQUE CHANNEL:

WIND     : SE to E 05 to 15, becoming NE in the northern half from mid-period.

VIS      : Good, but moderate in showers and thundershowers in the north and

           central parts at times until mid-period.



MADAGASCAR EAST (10S/25S, EAST COAST/55E):

WIND     : SE to S 10 to 20, becoming NE 15 in the south-west from mid-period.

VIS      : Moderate in showers and thundershowers in places.

SEA STATE: 3.0m in the south until mid-period, with SE swell.



MARION FORTIES EAST (40S/50S, 35E/50E):

WIND     : NW to W 15 to 25, but anticyclonic 05 to 15 in the north, and NW 15

           in the extreme north-east, becoming SW in the central-west towards

           end of period.

VIS      : Moderate to poor in showers and rain in the northern half, spreading

           to the central-east by mid-period, otherwise good.

SEA STATE: 3.0 to 4.0m over the southern half, spreading to the central-west

           from 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)

26/03/17 AT 1600UTC



AVERAGED WIND SPEED ON BEAUFORT SCALE. (Wind gusts may be about

40% stronger than the averages given here).



PART 1: WARNING



Gale or locally severe gale continuing or expected over CRO

and KER.



PART 2: GENERAL SYNOPSIS, 26/03/17 AT 1200UTC



Low 990 near 49S/52E, quickly moving east-south-eastwards,

expected 990 near 52S/57E the 18 at 00 UTC.

Waving front over CRO and KER near 43S.

High 1028 near 38S/69E, slow-moving.





PART 3: FORECAST FOR 24 HOURS FROM 26/03/17 at 1800UTC to

26/03/18 at 1800UTC



WAM (30S/40S, 50E/65E)

Scattered showers, locally thundery in far north.

WIND: Anticlockwise 3 or 4 in south, but Easterly 4 or 5 in north.

SEA:  Moderate, locally rough in far north.

VIS:  Poor in precipitation.





AMS (30S/40S, 65E/80E)

Scattered showers, locally thundery in far north.

WIND: Anticlockwise 3 or 4 in south, but Easterly 4 or

      5 in north.

SEA:  Moderate, locally rough in far north.

VIS:  Poor in precipitation.





CRO (40S/50S, 50E/65E)

Rain and showers.

WIND: Clockwise 7 or 8, at times 9, decreasing Northwest 4 or

      5 soon, at times 6. Severe gusts.

SEA:  Very rough or high in south, decreasing later. SW swell

      4 or 5 in south.

VIS:  Poor or very poor in precipitation.





KER (40S/50S, 65E/80E)

Rain and showers.

WIND: Westerly 5 or 6, increasing 7 or 8 in south, decreasing

      4 or 5 everywhere at end. Severe gusts.

SEA:  Becoming very rough or high in south. SW swell 4 or 5 m

      in south.

VIS:  Poor or very poor in precipitation.