WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE
03rd OF JULY 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 032200 TO 042200 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. TRISTAN: N to NW 35 to 40 in the east.
2. CAPE WEST: NW to W 35 in the south-west until mid-period.
3. CAPE EAST: Cyclonic 35 to 45 in the east until mid-period.
4. DURBAN EAST: SW 35 in the south-east at first.
5. MARION FORTIES EAST: SE to S 35 to 45 in the north-east until mid-period.
SYNOPTIC CHART 12:00Z
=====================
High 1024 hPa 24s03e, High 1026 hPa 48s32e
1. Cold Front: 29s22w 32s17w 35s12w into 36s14w.
2. Cold Front: 34s17e 38s23e 43s20e into 45s14e.
3. Cold Front: 27s43e 34s48e 40s48e into 37s42e.
AREA FORECAST:
==============
ASCENSION (06S/15S, 00E/20W):
WIND : SE to E 10 to 20.
VIS : Good, but moderate in showers and rain in places.
ANGOLA (06S/15S, 00E/00N):
WIND : SW 05 to 10 in the east, otherwise S to SE 10 to 15.
VIS : Good.
ST HELENA (15S/30S, 00E/20W):
WIND : NW to N 15 to 25 in the south, otherwise anti-cyclonic 05 to 15,
but S to SW 05 to 15 in the south-west spreading to the south-
central parts from mid-period.
VIS : Good, but moderate in showers and rain in places in the south-west
spreading to the south-east from mid-period.
SEA STATE: 3.0m in the southern parts, with SW to S swell.
TRADES (15S/30S, 00E/WEST COAST):
WIND : Anti-cyclonic 05 to 15 in the central-west, otherwise S to SE 10
to 20, but NW 10 to 20 in the south-west.
VIS : Good.
TRISTAN (30S/40S, 00E/20W):
WIND : N to NW 25 to 35 in the east , otherwise SW to W 20 to 30
spreading to the south-east from mid-period. It will become anti-
cyclonic 05 to 15 in the north-west towards the end of the period.
VIS : Good, but moderate to poor in showers and thundershowers in places
while clearing in the west from mid-period.
SEA STATE: 3.0 to 4.0m reaching 4.5 to 5.0m in the extreme south from mid-
period, with SW swell but W to NW swell in the north-east.
CAPE WEST (30S/40S, 00E/20E):
WIND : NW to W 15 to 25 reaching 30 to 35 in the west drifting to the
South-east from mid-period, while becoming SW to S 20 to 30 in the
south-west towards mid-period.
VIS : Good, but moderate to poor in showers and thundershowers except in
the north-east.
SEA STATE: 3.0 to 4.0m reaching 4.5 to 5.0m in the extreme south-west from
mid-period, with NW to W swell.
CAPE EAST (32.5S/40S, 20E/50E):
WIND : Cyclonic 35 to 45 in the east until mid-period, otherwise W to NW
15 to 25, but variable 05 to 10 in the central parts. It will
become SW to S 20 to 30 in the east from mid-period moderating
towards the end of the period.
VIS : Good, but moderate to poor in showers and thundershowers in places
while clearing in the east from mid-period.
SEA STATE: 4.0 to 5.0m, reaching 6.0 to 7.0m in the east until the end of the
period, while subsiding 3.0 to 3.5m in places in the west from
mid-period, with S to SE swell but SW to W in the north-east and
in the west from mid-period.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : Anti-cyclonic 05 to 15 in the west, otherwise SW 15 to 25 reaching
30 to 35 in the south-east until mid-period, but N to NW 15 to 25
in the north-east until mid-period.
VIS : Good, but moderate to poor in showers and thundershowers in places
in the east until mid-period but moderate in showers and rain in
the south-west by the end of the period.
SEA STATE: 3.0 to 4.0m, reaching 5.0 to 7.0m in the south-central parts,
drifting to the south-east from mid-period, with SW swell.
MOZAMBIQUE CHANNEL:
WIND : SE to S 05 to 15.
VIS : Good, but moderate in showers and rain in places in the south.
SEA STATE: 3.0 to 4.0m in the south, with S to SW swell.
MADAGASCAR EAST (10S/25S, EAST COAST/55E):
WIND : Variable 05 to 10 in the south, otherwise S to SE 10 to 20.
VIS : Good, but moderate in showers and rain in the north.
SEA STATE: 3.0m in places in the north and in the extreme south towards the
end of the period, with SE swell but SW swell in the south.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : SE to S 15 to 25 in the east, reaching 35 to 45 in the north-east
until mid-period, otherwise anti-cyclonic 05 to 15.
VIS : Good, but moderate in showers and rain in the north-east clearing
by mid-period, with possible blowing snow in the south.
SEA STATE: 3.5 to 4.5m, reaching 5.5 to 6.5m in the north-east until the end
of the period, with SE to E swell, but SW in the south.
AREA 2:
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MARINE METEOROLOGICAL BULLETIN FROM METEO-FRANCE/LA REUNION ON AREA ACK (AMSTERDAM-CROZET-KERGUELEN)
2026/07/03 AT 0600UTC
AVERAGED WIND SPEED ON BEAUFORT SCALE. (WIND GUSTS MAY BE ABOUT 40% STRONGER THAN THE AVERAGES GIVEN HERE).
PART 1: WARNING
- GALE TO STRONG GALE FORCE 8 TO 9 OVER WAM, AMS, KER.
- GALE FORCE 8 OVER CRO.
PART 2: GENERAL SYNOPSIS, 26/07/03 AT 0000UTC
- LOW 988 HPA NEAR 36S/34E WITH ASSOCIATED FRONT CF. EXPECTED 987 HPA NEAR 40S/54E AT END.
- CG FRONT AXIS 36S/68E, 40S/73E, 44S/73E, MOVING QUICKLY EASTWARD.
- HIGH1029 HPA NEAR 48S/30E, WITH A RIDGE EXTENDING NORTHEASTWARD, MOVING NORTHEASTWARD.
PART 3: FORECAST FOR 24 HOURS FROM 26/07/03 AT 0600UTC TO 26/07/04 AT 0600UTC
WAM (30S/40S, 50E/65E)
SHOWERS AND FRONTAL SQUALLS.CF
WIND: VARIABLE ANTICLOCKWISE 2/4 IN THE EAST AND NORTHERLY TO NORTH-EAST 5/6
LOCALLY 7 IN THE WEST. INCREASING SOON BY WEST NORTH TO NORTHWEST AT
7/8, LOCALLY 9 WITH THE FRONT, BACKING WEST TO NORTHWEST AT 7/8 BEHIND
IN THE WEST AT END. VIOLENT GUSTS
SEA: ROUGH TO VERY ROUGH, BECOMING VERY ROUGH TO HIGH IN THE WEST AT END.
SOUTHWEST SWELL 2 TO 4 METERS ABATING. ARRIVAL OF NORTHEAST SWELL 3 TO
4 METERS IN THE SOUTHWEST LATER.
VIS : VERY POOR DURING PRECIPITATION.
AMS (30S/40S, 65E/80E)
SHOWERS AND THUNDERSTORMS IN THE SOUTHEAST. CG
WIND: SOUTHWEST 5/6 OVER THE NORTHWEST HALF AND 7/8, LOCALLY 9, OVER THE
SOUTHEAST HALF, BECOMING ANTICLOCKWISE 2/4 IN THE NORTH AND SETTLING
WESTERLY 4 TO 7 FROM WEST TO EAST IN THE SOUTH. THEN AT END, SETTLING
NORTHERLY 4 TO 7 FROM NORTH TO SOUTH IN THE WEST.
SEA: ROUGH TO HIGH FROM THE NORTHWEST TO THE SOUTHEAST. SOUTHWEST SWELL OF 4
TO 5 METERS.
VIS: VERY POOR IN PRECIPITATION.
CRO (40S/50S, 50E/65E)
SHOWERS AND FRONTAL SQUALLS IN THE NORTH.CF
WIND: NORTHERN HALF: VARIABLE 3/4, BUT SOUTH-WESTERLY 6/7 IN THE EAST DURING
THE DAY, SOON FRESHENING NORTH-EASTERLY 7/8 WITH GUSTS BY NORTH-WEST,
THEN LATER BECOMING LOW-PRESSURE 6/7, LOCALLY 8 OVERALL.
SOUTHERN HALF: SOUTHWEST 4 TO 8 FROM WEST TO EAST, BECOMING VARIABLE
ANTICYCLONIC 3/4 FROM THE NORTH, LATER FRESHENING EAST TO SOUTHEAST 5/6
IN THE FAR NORTH.
SEA: ROUGH TO VERY ROUGH, BUT HIGH IN THE SOUTHEAST DURING THE DAY.
SOUTHWEST SWELL 4 TO 6 METERS ABATING OVER WEST, ARRIVAL OF NORTHEAST
SWELL 2 TO 4 METER LATER.
VIS: POOR TO VERY POOR IN PRECIPITATION.
KER (40S/50S, 65E/80E)
SHOWERS AND THUNDERSTORMS IN THE NORTHEAST. CG
WIND: SOUTHWEST 7/8, LOCALLY 9, DECREASING WESTERLY 4/6 IN WEST DURING THE
PERIOD, THEN INCREASING NORTHERLY 6/7 IN THE FAR NORTHWEST AT END.
SEA: VERY ROUGH TO HIGH, LOCALLY VERY HIGH N THE SOUTHEAST LATER. ARRIVAL
OF SOUTHWEST SWELL OF 4 TO 6 METERS.
VIS: POOR TO VERY POOR IN PRECIPITATION.