WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE
14TH 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:
=======
FORECAST VALID FROM 142200 TO 152200 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: E to SE 35 in the west at first.
2. CAPE EAST: W to NW 35 in the south-west, drifting to the south-east
towards the end of the period.
3. MARION FORTIES EAST: NW 35 in the west, drifting to the east towards the
end of the period.
SYNOPTIC CHART 12:00Z
=====================
High 1025 hPa 27s00e, High 1036 hPa 40s47e
Low 1007 hPa 33s21w, Low 974 hPa 58s21e
1. Cold Front: 17s34w 20s31w 25s24w 30s19w into 33s21w
2. Cold Front: 35s03e 40s18e 45s22e 50s25e into 58s21e
AREA FORECAST:
==============
ASCENSION (06S/15S, 00E/20W):
WIND : E to SE 05 to 15 reaching 20 in the east until mid-period.
VIS : Good.
ANGOLA (06S/15S, 00E/00N):
WIND : Variable 05 to 10 in the east, otherwise S to SE 05 to 15
reaching 20 in the south and west until mid-period.
VIS : Good.
SEA STATE: 3.0m in the south until mid-period, with S to SE swell.
ST HELENA (15S/30S, 00E/20W):
WIND : E to SE 10 to 20 in the north, otherwise NW 10 to 20 reaching 25
in the south-west, spreading to the south by mid-period. It will
become S to SW 10 to 20 in the extreme south-west by the end of
the period.
VIS : Good but moderate to poor in showers and thundershowers in the
south-west.
SEA STATE: 3.0 to 3.5m in the south, with W to SW swell.
TRADES (15S/30S, 00E/WEST COAST):
WIND : Variable 05 to 10 in the south-west, otherwise S to SE 10 to 20
reaching 25 in the north and south-east.
VIS : Good.
SEA STATE: 3.0m, with S to SW swell.
TRISTAN (30S/40S, 00E/20W):
WIND : NE 10 to 20 in the extreme south-east at first, otherwise NW 10
to 20 reaching 25 to 30 in the central parts but E to SE 20 to 30
in the south-west, reaching 35 in the west at first.
VIS : Moderate to poor in showers and thundershowers.
SEA STATE: 3.0 to 4.0m with SW swell, but 3.5 to 4.5m in the west with S to
SE swell.
CAPE WEST (30S/40S, 00E/20E):
WIND : SW 20 to 30 in the south-east until mid-period, but S to SE 05 to
15 in the north-east, otherwise W to NW 10 to 20 reaching 25 to
30 in the south-west towards mid-period, spreading to the south
towards the end of the period.
VIS : Good but moderate in showers and rain in the south-west towards
mid-period, spreading to the south-east towards the end of the
period.
SEA STATE: 3.0 to 3.5m in the southern and western halves, reaching 4.0 to
5.0m in the south, with SW swell.
CAPE EAST (32.5S/40S, 20E/50E):
WIND : E to NE 15 to 25 reaching 30 over the central parts at first, but
W to NW 10 to 20 in the west, reaching 25 to 35 in the south-
west, spreading to the south-east towards the end of the period,
while becoming SW 15 to 25 from the west.
VIS : Moderate in showers and thundershowers in places.
SEA STATE: 3.0 to 3.5m reaching 4.0 to 5.0m in the south-west, with W to SW
swell.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : Variable 05 to 10 in the north, otherwise E to NE 20 to 30 but S
to SW 05 to 15 in the west.
VIS : Moderate to poor in showers and thundershowers, but good in the
west.
SEA STATE: 3.0 to 4.0m reaching 4.5m in the south at first, with E to SE
swell.
MOZAMBIQUE CHANNEL:
WIND : W to NW 10 to 20 in the south-east, otherwise S to SW 10 to 20
reaching 25 in the south-west at first.
VIS : Good but moderate in showers and rain in the south-east.
MADAGASCAR EAST (10S/25S, EAST COAST/55E):
WIND : S to SE 05 to 15 but E to NE 15 to 25 in the south-east.
VIS : Moderate to poor in showers and thundershowers.
SEA STATE: 3.0 to 4.0m in the south, with SE to E swell.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : Anticyclonic 05 to 15 in the north-east at first, otherwise NW 20
to 30 reaching 35 in the west, drifting to the east towards the
end of the period, while becoming W to SW 20 to 30.
VIS : Good but moderate to poor in showers and rain in the west,
drifting to the east towards the end of the period.
SEA STATE: 3.0 to 4.0m in the south and west, reaching 4.5 to 5.5m in the
west towards mid-period, drifting to the east by the end of the
period, with W to NW swell.
AREA 2:
=======
MARINE METEOROLOGICAL BULLETIN FROM METEO-FRANCE/LA REUNION ON AREA ACK (AMSTERDAM-CROZET-KERGUELEN)
2026/07/14 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 CRO.
- GALE OVER KER AND SEVERE GALE EXPECTED.
PART 2: GENERAL SYNOPSIS, 2026/07/14 AT 0000UTC
- HIGH 1039 HPA NEAR 41S/43E MOVING NORTH-EASTWARD.
PART 3: FORECAST FOR 24 HOURS FROM 2026/07/14 AT 0600UTC TO 2026/07/15 AT 0600UTC
WAM (30S/40S, 50E/65E)
FEW SHOWERS.
WIND : ANTICLOCKWISE 3 TO 5, LOCALLY 6 WITH GUSTS OVER FAR NORTHWESTERN AT
END.
SEA : MODERATE TO ROUGH, LOCALLY VERY ROUGH AT FIRST OVER FAR SOUTHEASTERN.
SW SWELL 3 TO 4 M ABATING.
VIS : GOOD.
AMS (30S/40S, 65E/80E)
FEW SHOWERS.
WIND : OVER NORTHERN : SW 4 TO 6 WITH GUSTS FROM WEST TO EAST, DECREASING 3
TO 5 LATER. OVER SOUTHERN : SW 5 OR 6, LOCALLY 7 OVER FAR SOUTHERN,
DECREASING 4 OR 5 OVER WESTERN LATER. SEVERE GUSTS.
SEA : ROUGH TO VERY ROUGH, BECOMING LOCALLY HIGH OVER FAR SOUTHEASTERN
LATER. SW SWELL 3 OR 4 M, THEN 4 OR 5 M AT END.
VIS : GOOD.
CRO (40S/50S, 50E/65E)
FEW SHOWERS.
WIND : OVER NORTHERN : SW 4 TO 6 FROM WEST TO EAST, LOCALLY 7 OVER FAR
EASTERN, GRADUALLY DECREASING 3 OR 4 AT END. OVER SOUTHERN : W OR SW
6 OR 7, AT TIMES 8 OVER FAR SOUTHEASTERN AT FIRST, GRADUALLY
DECREASING 4 TO 6 FROM WEST TO EAST AT END. SEVERE GUSTS.
SEA : ROUGH TO VERY ROUGH, LOCALLY HIGH OVER FAR SOUTHEASTERN. SW SWELL 3
TO 5 M.
VIS : GOOD.
KER (40S/50S, 65E/80E)
SCATTERED SHOWERS.
WIND : SW 6 OR 7, LOCALLY 8 OVER WESTERN AT FIRST, GRADUALLY INCREASING 7 OR
8 SOON, LOCALLY 9 OVER FAR SOUTHERN LATER, DECREASING 5 OR 6 OVER
WESTERN AT END. VIOLENT GUSTS.
SEA : VERY ROUGH TO HIGH, LOCALLY VERY HIGH OVER FAR SOUTHEASTERN AT END.
SW SWELL 4 TO 6 M AT END.
VIS : POOR WITH PRECIPITATION.