WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE
03rd OF JULY 2026 AT 08:30 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 031000 TO 041000 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 central parts drifting to the south-east
from mid-period.
2. CAPE WEST: NW to W 35 in the north-east at first and south-west towards
the end of the period.
3. CAPE EAST: Cyclonic 35 to 45 in the east until towards the end of the
period.
4. DURBAN EAST: SW 35 to 40 in the extreme south-west until mid-period.
5. MARION FORTIES EAST: SE to S 35 to 45 in the north until the end of the
period.
SYNOPTIC CHART 06:00Z
=====================
High 1024 hPa 25s06e, High 1028 hPa 49s30e
1. Cold Front: 30s27w 31s23w 34s17w into 35s19w.
2. Cold Front: 41s18w 49s07w 57s05w 63s03w into 60s08w.
3. Cold Front: 35s05e 38s15e 42s17e into 44s13e.
4. Cold Front: 26s39e 32s46e 39s43e into 36s37e.
AREA FORECAST:
==============
ASCENSION (06S/15S, 00E/20W):
WIND : E to SE 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 20 to 30 in the south, otherwise anti-cyclonic 05 to 15,
becoming S to SW 05 to 15 in the south-west towards the end of the
period.
VIS : Good, but moderate in showers and rain in places in the south-west
spreading to the south-central towards the end of the period.
SEA STATE: 3.0m in the southern parts from mid-period, 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 15
to 25, but NW 05 to 15 in the south.
VIS : Good.
TRISTAN (30S/40S, 00E/20W):
WIND : N to NE 10 to 20 in the east until mid-period, otherwise N to NW
25 to 35 reaching 40 in the south-east from mid-period, but SW to
15 to 25 in the west.
VIS : Good, but moderate to poor in showers and thundershowers in the
west spreading to the east towards mid-period.
SEA STATE: 3.0 to 4.0m in the west spreading to the east towards mid-period
while reaching 4.5 to 5.0m, with W to NW swell but SW swell in the
west from mid-period.
CAPE WEST (30S/40S, 00E/20E):
WIND : Anti-cyclonic 05 to 15 in the west drifting to the south-central
parts from mid-period, otherwise NW to W 15 to 25 reaching 30 to
35 in the north-east at first and south-west towards the end of
the period.
VIS : Good, but moderate to poor in showers and thundershowers in places
in the east and in the west from mid-period.
SEA STATE: 3.0 to 4.0m in places in the east while reaching 4.5 to 5.0m in
the west towards the end of the period, with SW swell but NW swell
in the west from mid-period.
CAPE EAST (32.5S/40S, 20E/50E):
WIND : Cyclonic 15 to 25 in the east reaching 35 to 45 until towards the
end of the period, otherwise W to NW 15 to 25, but variable 05 to
10 in the central parts towards mid-period.
VIS : Good, but moderate to poor in showers and thundershowers except in
the central parts while clearing in the east towards the end of
the period.
SEA STATE: 4.0 to 5.0m, reaching 6.0 to 7.0m in the east but 8.0 to 9.0 m in
the central parts at first, with S to SE swell but SW to W in the
north-east.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : N to NW 15 to 25 in the east, otherwise SW 20 to 30 in the west
drifting to the south-east from mid-period while reaching 35 to 40
in the extreme south-west until mid-period. It will become
anticyclonic 05 to 15 in the west from mid-period.
VIS : Good, but moderate to poor in showers and thundershowers in places
in the east.
SEA STATE: 3.0 to 4.0m, reaching 5.0 to 7.0m in the south-west, drifting to
the south-east from mid-period, with SW swell.
MOZAMBIQUE CHANNEL:
WIND : SE to S 05 to 15, reaching 20 in the south until mid-period.
VIS : Good, but moderate in showers and rain in places in the south.
SEA STATE: 3.0 to 4.0m in the extreme south from mid-period, with S to SW
swell.
MADAGASCAR EAST (10S/25S, EAST COAST/55E):
WIND : N to NE 05 to 15 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, with SE swell.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : SE to S 15 to 25, reaching 35 to 45 in the northern parts until
the end of the period. It will become anti-cyclonic in the west
towards the end of the period.
VIS : Good, but moderate to poor in showers and thundershowers in the
north clearing by the end of the period, with possible blowing
snow in the south.
SEA STATE: 3.5 to 4.5m, reaching 5.0m in the south-east as well as the north-
west, where it will reach 7.0 to 8.0m in the extreme north at
first, with SE to E swell, but SW in the south.
AREA 2:
=======
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.