WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE
19TH OF MAY 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 192200 TO 202200 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. CAPE WEST: E to SE 35 in the south-east at first.
2. MARION FORTIES EAST: SW 35 in the south-east and eastern parts until
mid-period.
SYNOPTIC CHART 12:00Z
=====================
High 1035 hPa 43s21e
Low 987 hPa 45s12w, Low 1014 hPa 31s15e.
1. Cold Front: 28s30w 34s18w 40s12w 44s11w into 45s12w.
AREA FORECAST:
==============
ASCENSION (06S/15S, 00E/20W):
WIND : E to SE 10 to 20.
VIS : Good.
ANGOLA (06S/15S, 00E/00N):
WIND : SW 05 to 10 in the east, otherwise S to SE 10 to 20.
VIS : Good.
ST HELENA (15S/30S, 00E/20W):
WIND : NE 05 to 15 in the south but N to NW 10 to 20 in the south-
west, otherwise E to SE 05 to 15.
VIS : Good, but moderate in rain and showers in the extreme south-
west.
TRADES (15S/30S, 00E/WEST COAST):
WIND : Variable 05 to 10 in the extreme south-east otherwise S to SE
10 to 20.
VIS : Good.
SEA STATE: 3.0 to 3.5m in the central and southern parts until mid-
period, with S to SE swell.
TRISTAN (30S/40S, 00E/20W) :
WIND : W to SW 05 to 15 in the south-west until mid-period, otherwise
N to NW 15 to 25 reaching 30 in places.
VIS : Good, but moderate to poor in showers and thundershowers in
the north-west, central and south-west, spreading to the
south-east by mid-period.
SEA STATE: 3.0 to 4.0m except in the north-east, with NW swell over the
central parts, otherwise W to SW swell.
CAPE WEST (30S/40S, 00E/20E):
WIND : Cyclonic 05 to 10 in the north-east but Anticyclonic 05 to 15
in the north-west and south-east, otherwise E to SE 15 to 25
reaching 30 to 35 in the south-east at first.
in the south-east moderating towards the end of the period.
VIS : Good, but moderate in showers and thundershowers in places in
the central-east, spreading to the extreme south-west.
SEA STATE: 3.0 to 3.5m in the north and east, reaching 4.0m in the north-
East until mid-period, with E to SE swell.
CAPE EAST (32.5S/40S, 20E/50E):
WIND : E to SE 15 to 25 in the west and central parts, reaching 30 in
places in the north-west, otherwise S to SW 10 to 20 reaching
25 in the south-east until mid-period becoming Anticyclonic 05
to 15 in the central-parts.
VIS : Good, but moderate in showers and thundershowers in places in
the north.
SEA STATE: 3.0 to 3.5m except in the north-east, reaching 4.0 to 5.0m in
the north-west at first, spreading to the south-east from mid-
period, but 5.5 to 6.0m in the extreme south-east by the end
of the period, with E to SE swell in the west otherwise SW
swell.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : Variable 05 to 10 in the south-west, otherwise E to SE 15 to
25.
VIS : Good, but moderate in showers and thundershowers in places.
SEA STATE: 3.0m in the southern-half from mid-period, with S to SE swell.
MOZAMBIQUE CHANNEL:
WIND : S to SE 15 to 20, reaching 25 to 30 in the south-east, but SW
10 to 20 in the north, reaching 25 in places in the north-
west.
VIS : Good, but moderate in showers and rain in places in the west
and south.
SEA STATE: 3.0 in the south-east, SE swell.
MADAGASCAR EAST (10S/25S, EAST COAST/55E):
WIND : S to SE 05 to 15, reaching 20 to 30 in the north.
VIS : Good, but moderate in showers and rain in places in places.
SEA STATE: 3.0m in the north.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : SW 15 to 25 reaching 30 to 35 in the south-east and eastern
parts until mid-period, becoming W to NW 15 to 25 in the
south-west from mid-period, reaching 30 to 35 in the south by
the end of the period.
VIS : Good, but moderate in showers and rain in the south by the end
of the period.
SEA STATE: 5.0 to 6.0m in the south and east reaching 6.5 to 7.5m,
but 8.0m in the south-east at first, otherwise 3.0 to 4.0m,
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)
26/05/19 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 OVER CRO AND KER.
PART 2: GENERAL SYNOPSIS, 26/05/19 AT 1200UTC
- LOW 972 NEAR 58S/57E, STEADILY MOVING EASTWARD, WITH ASSOCIATED
COLD FRONT CROSSING GRADUALLY ALL AREAS.
- HIGH 1024 NEAR 34S/72E STEADILY MOVING EASTWARD.
- SQUALLS OVER FAR NORTHERN WAM AND FAR NORTHERN AMS.
PART 3: FORECAST FOR 24 HOURS FROM 26/05/19 AT 1800UTC TO 26/05/20
AT 1800UTC
WAM (30S/40S, 50E/65E)
SQUALLS OVER FAR NORTHERN. FRONTAL RAIN AND SHOWERS OVER
SOUTH-WESTERN MOVING NORTH-EASTWARD.
WIND:
- NORTHERN HALF :ANTICLOCKWISE 2/4, INCREASING SW 4/5 LATER, AT TIMES
6 WITH GUSTS.
- SOUTHERN HALF : W 5/6 AHEAD OF THE FRONT AT TIMES 7, BACKING SW
BEHIND. GUSTS.
SEA: MODERATE TO ROUGH, BECOMING GRADUALLY VERY ROUGH OVER SOUTHERN
BY SW SWELL INCREASING 3 TO 5M, AND LOCALLY HIGH OVER FAR SOUTHERN
LATER.
VISI: POOR OR VERY POOR IN PRECIPITATION.
AMS (30S/40S, 65E/80E)
SQAULLS OVER FAR NORTHERN ,BUT SCATTERED SHOWERS ELSEWHERE. FRONTAL
RAIN AND SHOWERS OVER SOUTH-WESTERN LATER.
WIND:
NORTHERN HALF : ANTICLOCKWISE 2/4, AT TIMES 5 OVER FAR NORTHERN,
INCREASING N 5/6 WITH GUSTS OVER NORTH-EASTERN LATER.
- SOUTHERN HALF : INCREASING NW5/6 AT TIMES 7, BACKING SW OVER
SOUTH-WESTERN LATER. GUSTS.
SEA: MODERATE TO ROUGH, BECOMING VERY ROUGH OVER SOUTH-WESTERN LATER
BY SW SWELL INCREASING 3 TO 4M.
VISI: POOR OR VERY POOR IN PRECIPITATION.
CRO (40S/50S, 50E/65E)
FRONTAL RAIN AND SHOWERS OVER NORTH-EASTERN MOVING NORTH-EASTWARD.
SHOWERS ELSEWHERE.
WIND: W 6/7 AHEAD OF THE FRONT, AT TIMES 8, BACKING SW BEHIND. SEVERE
GUSTS.
SEA: VERY ROUGH TO HIGH, BY SW SWELL INCREASING 4 TO 6M.
VISI: POOR OR VERY POOR IN PRECIPITATION.
KER (40S/50S, 65E/80E)
FRONTAL RAID AND SHOWERS. SHOWERS FROM WEST BEHIND.
WIND: W 5/6, INCREASING NW 6/7 AT TIMES 8 WITH THE ARRIVAL OF THE
FRONT, THEN BACKING W 6/7 BEHIND. SEVERE GUSTS.
SEA: ROUGH TO VERY ROUGH, BECOMING HIGH OVER FAR WESTERN AT END. SW
SWELL 3 TO 5M.
VISI: POOR OR VERY POOR IN PRECIPITATION.