WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE
15TH OF JUNE 2026 AT 13:30 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 152200 TO 162200 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 EAST: cyclonic 35 to 40 in the south-east by mid-period.
2. MARION FORTIES EAST: NW to W 35 in the south but 40 in the south-east
until mid-period.
SYNOPTIC CHART 12:00Z
=====================
High 1035 hPa 34s01w, High 1030 hPa 33s52e
Low 1012 hPa 39s30e
1. Cold Front: 32s35e 38s35e 40s32e into 39s30e.
AREA FORECAST:
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ASCENSION (06S/15S, 00E/20W):
WIND : SE to E 10 to 20.
VIS : Good.
SEA STATE: 3.0m in the south-east, with SE swell.
ANGOLA (06S/15S, 00E/00N):
WIND : SW 05 to 15 in the east, otherwise S to SE 10 to 20, reaching
25 in the south.
VIS : Good.
SEA STATE: 3.0m in the south where it will become 3.5m from mid-period,
with SE swell.
ST HELENA (15S/30S, 00E/20W):
WIND : E to SE 15 to 25, but NE to N 15 to 25 in the south-west.
VIS : Good but moderate to poor in showers and thundershowers in the
extreme south-west.
SEA STATE: 3.0 to 4.0m, except in the south-east, with E to SE swell.
TRADES (15S/30S, 00E/WEST COAST):
WIND : S to SE 15 to 25.
VIS : Good, but moderate in thundershowers in the south-east.
SEA STATE: 3.0 to 4.0m, except in the extreme south-west, with S to SE
swell.
TRISTAN (30S/40S, 00E/20W):
WIND : Anticyclonic 05 to 15 in the north-east, otherwise N to NW 15
to 25, reaching 30 in places in the west at first.
VIS : Good, but moderate to poor in showers and thundershowers in
the west, spreading to the central-south towards by mid-
period, while clearing from the south-west.
SEA STATE: 3.0 to 4.0m in the west, reaching 4.5m in the south-west, with
N to NW swell.
CAPE WEST (30S/40S, 00E/20E):
WIND : W to SW 05 to 15, but SE 10 to 20 in the north reaching 25 in
the north-east, and anticyclonic 05 to 15 in the north-west
becoming NW 15 to 25 in the south-west by mid-period.
VIS : Good, but moderate in showers and thundershowers in places in
the central-north.
SEA STATE: 3.0m in the north-east where it will reach 4.0m towards end of
period, with SW swell, but S in the north-east.
CAPE EAST (32.5S/40S, 20E/50E):
WIND : Anticyclonic 05 to 15 in the north-east until mid-period,
Otherwise, W to SW 10 to 20, but cyclonic 15 to 25 in the
central-west, that will drift to the east while reaching 30 to
40 in the southeastern parts, while becoming NW 20 to 30 in
the east by mid-period.
VIS : Good in the north-east, otherwise moderate to poor in showers
and thundershowers in places spreading to the east while
clearing from the west from mid-period.
SEA STATE: 3.0 to 4.0m, reaching 4.5 to 5.0m in the south-east by end of
period, with W to SW swell, and NW in the east towards end of
period.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : S to SE 05 to 15 reaching 20 in places in the north,
but cyclonic 15 to 25 in the central-south and SW 15 to in the
south-west becoming anticyclonic 05 to 15 in the south-east
where it will become NW 05 to 15 end of period.
VIS : Good, but moderate to poor in showers and thundershowers in
the north-east and central-south-west.
SEA STATE: 3.0 to 4.0m, except in the north-west, with S to SW swell.
MOZAMBIQUE CHANNEL:
WIND : S to SE 10 to 20, becoming NE to E 10 to 20 in the south-west.
VIS : Good.
MADAGASCAR EAST (10S/25S, EAST COAST/55E):
WIND : E to SE 10 to 20, reaching 25 to 30 in the extreme north-west.
VIS : Good in the central parts, but moderate in showers and
thundershowers in places.
SEA STATE: 3.0m in the extreme south and north-west, with SW swell.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : NW to W 15 to 25, reaching 30 to 35 in the south but 40 in the
south-east until mid-period, but cyclonic 10 to 20 in the
central-north that will drift to the north-east by the end of
the period.
VIS : Good, but moderate in rain in the extreme north-east and in
the south from mid-period.
SEA STATE: 3.0 to 4.0m, reaching 5.0 to 6.0m in the southern half, but
7.0 to 8.0m in the south-east until mid-period, with SW swell.
AREA 2:
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MARINE METEOROLOGICAL BULLETIN FROM METEO-FRANCE/LA REUNION ON AREA ACK (AMSTERDAM-CROZET-KERGUELEN)
26/06/15 AT 0500UTC
AVERAGED WIND SPEED ON BEAUFORT SCALE. (WIND GUSTS MAY BE ABOUT 40% STRONGER THAN THE AVERAGES GIVEN HERE).
PART 1: WARNING
- GALE OVER SOUTHERN CRO AND SOUTHERN KER.
PART 2: GENERAL SYNOPSIS, 26/06/15 AT 0000UTC
- COLD FRONT OVER NORTH-EASTERN AMS IN THE DAYTIME.
- HIGH 1030 NEAR 33S/51E MOVING EASTWARD.
- FAST WEST FLOW OVER CRO AND KER.
PART 3: FORECAST FOR 24 HOURS FROM 26/06/15 AT 0600UTC TO 26/06/16 AT 0600UTC
WAM (30S/40S, 50E/65E)
RAIN AND SHOWERS OVER SOUTHERN.
WIND: ANTICLOCKWISE 3/4 OVER NORTHERN AND W 4/5 OVER SOUTHERN AT TIMES 6 WITH
GUSTS.
SEA : ROUGH TO VERY ROUGH BY SW SWELL 3 TO 5 M.
VIS : POOR IN PRECIPITATION.
AMS (30S/40S, 65E/80E)
FRONTAL RAIN, SHOWERS AND SQUALLS. SHOWERS BEHIND.
WIND: SW 5/6 OVER NORTH-EASTERN BEHIND THE FRONT BECOMING ANTICLOCKWISE 3/4
BY WESTERN.
SEA : MODERATE TO ROUGH OVER NORTH-EASTERN, BUT VERY ROUGH BY SOUTH-WESTERN
BY SW SWELL INCREASING 4 TO 5BM.
VIS : POOR OR VERY POOR IN PRECIPITATION.
CRO (40S/50S, 50E/65E)
SHOWERS, SNOWY IN SOUTH.
WIND: WESTERLY 5 TO 7 FROM NORTH TO SOUTH AT TIMES 8 OVER SOUTHERN.
GUSTS.
SEA : VERY ROUGH TO HIGH. SW SWELL 3 TO 5 M.
VIS : POOR OR VERY POOR IN PRECIPITATION.
KER (40S/50S, 65E/80E)
SHOWERS, SNOWY IN SOUTH.
WIND: WESTERLY 5 TO 7 FROM NORTH TO SOUTH AT TIMES 8 OVER SOUTHERN.
GUSTS.
SEA : VERY ROUGH TO HIGH. WESTERLY SWELL 4 TO 5M SPREADING GRADUALLY FROM
WEST.
VIS : POOR OR VERY POOR IN PRECIPITATION.