WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE
15th OF JULY 2026 AT 16:00 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 WEST: Cyclonic 35 in the south-west from mid-period.
2. MARION FORTIES EAST: NW 35 in the east at first, but W to SW 35 in the
south-west.
SYNOPTIC CHART 12:00Z
=====================
High 1026 hPa 30s07e, High 1034 hPa 37s56e
Low 1012 hPa 33s13w; Low 963 hPa 63s53e
1. Cold Front: 34s19e 36s28e 42s37e 56s46e into 63s53e
AREA FORECAST:
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ASCENSION (06S/15S, 00E/20W):
WIND : E to SE 05 to 15 reaching 20 in the east until mid-period, but
variable 05 to 10 in the south-west.
VIS : Good.
ANGOLA (06S/15S, 00E/00N):
WIND : Variable 05 to 10 in the north, otherwise S to SE 05 to 15.
VIS : Good.
ST HELENA (15S/30S, 00E/20W):
WIND : E to NE 05 to 10 reaching 15 to 25 in places over the central and
south-eastern parts, but S to SW 15 to 25 in the south-west.
VIS : Good but moderate to poor in showers and thundershowers across the
north-west and the central south.
SEA STATE: 3.0 to 3.5m in the south-west, with W to SW swell.
TRADES (15S/30S, 00E/WEST COAST):
WIND : Variable 05 to 10 in the west, otherwise S to SE 10 to 20, but N
to NW 05 to 10 in the south-west.
VIS : Good.
TRISTAN (30S/40S, 00E/20W):
WIND : Cyclonic 15 to 25 in the south-east, but NW to W 10 to 20 in the
north-east.
VIS : Moderate to poor in showers and thundershowers in the east but in
the south-west from the end of the period.
SEA STATE: 3.0 to 3.5m in the east with SW swell.
CAPE WEST (30S/40S, 00E/20E):
WIND : Variable 05 to 10 in the central parts and the north-east, but
cyclonic 15 to 25 in the south-east, otherwise SW 05 to 15.
VIS : Good but moderate in showers and rain in the south.
SEA STATE: 3.0 to 4.0m in the south, with SW swell.
CAPE EAST (32.5S/40S, 20E/50E):
WIND : NW to W 05 to 10 in the east at first, otherwise variable 05 to
10, but cyclonic 25 to 35 in the south-west.
VIS : Good but moderate to poor in showers and rain in the south-west,
spreading to the east, and north-east by mid-period.
SEA STATE: 3.0m in the west and central parts, reaching 4.0 to 5.0m in
the south-west, with W to SW swell.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : Cyclonic 05 to 15 in the north-east, E to NE 5 to 25 in the south-
east, otherwise S to SE 05 to 15.
VIS : Good but moderate in showers and thundershowers in the east.
SEA STATE: 3.0 to 4.0m in the east, with E to SE swell.
MOZAMBIQUE CHANNEL:
WIND : S to SW 05 to 15, but variable 05 to 10 in the south-east and the
north-east.
VIS : Good.
MADAGASCAR EAST (10S/25S, EAST COAST/55E):
WIND : Cyclonic 05 to 15 over the central parts, otherwise variable 05 to
10.
VIS : Moderate in showers and thundershowers over the central parts, but
poor in the South-east at first.
SEA STATE: 3.0 to 4.0m in the south-east, with SE to S swell.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : NW 25 to 35 in the east at first, otherwise W to SW 15 to 25,
reaching 30 to 35 in the south-west, becoming variable 05 to 10 in
the north-west towards the end of the period.
VIS : Good but moderate to poor in snow showers and rain in the south-
east.
SEA STATE: 3.0 to 4.0m, reaching 4.5 to 5.5m in the south, with W to NW
swell.
AREA 2:
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MARINE METEOROLOGICAL BULLETIN FROM METEO-FRANCE/LA REUNION ON AREA ACK (AMSTERDAM-CROZET-KERGUELEN)
26/07/15 AT 1600UTC
AVERAGED WIND SPEED ON BEAUFORT SCALE. (WIND GUSTS MAY BE ABOUT 40%
STRONGER THAN THE AVERAGES GIVEN HERE).
PART 1: WARNING
- GALE OVER CRO.
PART 2: GENERAL SYNOPSIS, 26/07/15 AT 1200UTC
- HIGH 1032 HPA NEAR 38S/55E WITH A RIDGE EXTENDING NORTH-EASTWARDS,
EXPECTED 1029 HPA NEAR 33S/72E AT END.
- COLD FRONT EXPECTED TO REACH WAM AND CRO AT FIRST FROM THE SW.
PART 3: FORECAST FOR 24 HOURS FROM 26/07/15 AT 1800UTC TO 26/07/16
AT 1800UTC
WAM (30S/40S, 50E/65E)
ARRIVAL OF FRONTAL SHOWERS
WIND: ANTICLOCKWISE 2 TO 4, BUT NW 5 TO 6 LOCALLY 7 ARRIVING BY
SOUTHWESTERN AREA WITH THE COLD FRONT AT FIRST.
SEA : MODERATE TO ROUGH. SOUTH-WESTERLY SWELL 1.5 METERS TO 3 METERS
FROM NORTHWEST TO SOUTHEAST.
VISI: POOR IN PRECIPITATION.
AMS (30S/40S, 65E/80E)
SCATTERED SHOWERS.
WIND: SW 3 TO 4 LOCALLY 5 OVER SOUTHEASTERN AREA , BECOMING
ANTICLOCKWISE 2 TO 4 FROM THE WEST AT FIRST.
SEA : ROUGH TO VERY ROUGH. SOUTH-WESTERLY SWELL 3 TO 5 METERS.
VISI: GOOD.
CRO (40S/50S, 50E/65E)
ARRIVAL OF FRONTAL SHOWERS.
WIND: ANTICLOCKWISE 2 TO 4 OVER NORTHEASTERN AREA, BUT NW 5 TO 6
LOCALLY 7 AT FIRST INCREASING 6 TO 7 LOCALLY 8 AHEAD THE FRONT
BACKING WESTERLY 6 TO 7 BEHIND THE FRONT.
SEA : BECOMING ROUGH TO VERY ROUGH. SOUTH-WESTERLY SWELL 2 TO 4 METERS
FROM WEST TO EAST ABATING.
VISI: POOR IN PRECIPITATION.
KER (40S/50S, 65E/80E)
SCATTERED SHOWERS
WIND: SW 5 TO 6 LOCALLY 7 OVER FAR EASTERN AT FIRST BECOMING
ANTICLOCKWISE 2 TO 4 BY THE WEST BUT ARRIVAL BY SOUTHWESTERN NW 5 TO
6 INCREASING 6 TO 7 AT END.
SEA : VERY ROUGH TO HIGH BECOMING ROUGH TO VERY ROUGH SOON.
SOUTH-WESTERLY SWELL 5 TO 6 METERS ABATING.
VISI: GOOD.