WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE
06TH 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 062200 TO 072200 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. ST HELENA: S to SW 35 to 40 in the south-west towards mid-period.
2. TRISTAN: SE 35 to 40 in the west and north-west, spreading to the central
and southern parts towards mid-period.
3. MARION FORTIES EAST: W to NW 35 in the south-west towards mid-period,
spreading to the south-east towards the end of the
period.
SYNOPTIC CHART 12:00Z
=====================
High 1023 hPa 27s10e, High 1034 hPa 37s53e
Low 1001 hPa 31s18w, Low 941 hPa 62s25e
1. Cold Front: 18s33w 20s27w 25s19w into 31s18w
2. Cold Front: 40s31e 45s46e 50s51e 55s52e into 62s25e
AREA FORECAST:
==============
ASCENSION (06S/15S, 00E/20W):
WIND : SE to E 05 to 15, becoming variable 05 to 10 in the south towards
the end of the period.
VIS : Good.
ANGOLA (06S/15S, 00E/00N):
WIND : Variable 05 to 10 in the east, otherwise S to SE 05 to 15.
VIS : Good.
ST HELENA (15S/30S, 00E/20W):
WIND : NW 15 to 25 reaching 30 in the south-west, spreading to the
south-east towards mid-period, while becoming S to SW 30 to 40 in
the south-west.
VIS : Good but moderate to poor in showers and thundershowers in the
south-west, spreading over the southern and central parts towards
the end of the period.
SEA STATE: 3.0 to 4.0m in the south-west, spreading to the south-east
towards mid-period, while reaching 5.0 to 7.0m in the south-west,
with 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 south-east at first.
VIS : Good.
SEA STATE: 3.0m in the extreme south-west by the end of the period, with S
to SW swell.
TRISTAN (30S/40S, 00E/20W):
WIND : NW 20 to 30 in the north and north-east, otherwise SE 20 to 30
reaching 35 to 40 in the west and north-west, spreading to the
central and southern parts towards mid-period.
VIS : Moderate to poor in showers and thundershowers.
SEA STATE: 5.0 to 7.0m but 3.0 to 4.0m in the extreme south and north-east,
with S to SE swell.
CAPE WEST (30S/40S, 00E/20E):
WIND : S to SE 10 to 20 in the extreme north-east, otherwise W to NW 10
to 20 reaching 25 to 30 in the south-east at first. It will
become E to SE 20 to 30 in the extreme south-west towards the end
of the period.
VIS : Good but moderate in showers and rain in the south and south-
west.
SEA STATE: 3.0 to 3.5m in the southern and western halves, reaching 4.0 to
4.5m in the south and south-west, with SW swell.
CAPE EAST (32.5S/40S, 20E/50E):
WIND : N to NW 10 to 20 reaching 25 to 30 in central and south-western
parts, spreading to the south-eastern parts towards the end of
the period.
VIS : Good but moderate in showers and thundershowers in the south-
west, spreading to the south-east towards the end of the period.
SEA STATE: 3.0 to 4.0m in the south-west, spreading to the south towards the
end of the period, with SW swell.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : SE to E 05 to 15 reaching 20 to 25 in the north, but N to NE 20
to 30 in the west. It will become S to SW 05 to 15 in the extreme
south-west towards the end of the period.
VIS : Good.
SEA STATE: 3.0 to 3.5m in the north-east, with S to SE swell.
MOZAMBIQUE CHANNEL:
WIND : N to NE 05 to 15 in the extreme south-west, otherwise S to SE 10
to 20 reaching 25 to 30 in the south-east, but in the north-east
towards the end of the period.
VIS : Good but moderate in showers and rain in the northern parts.
SEA STATE: 3.0m in the south-east, with S to SE swell.
MADAGASCAR EAST (10S/25S, EAST COAST/55E):
WIND : SE 15 to 25 reaching 30 in the extreme north-west.
VIS : Moderate in showers and rain in places.
SEA STATE: 3.0 to 3.5m, with S to SE swell.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : W to NW 15 to 25 reaching 30 to 35 in the south-west towards mid-
period, spreading to the south-east towards the end of the
period.
VIS : Good but moderate in showers and rain in the west towards mid-
period, spreading to the east towards the end of the period.
SEA STATE: 3.0 to 4.0m, reaching 5.0 to 6.0m in the south-west towards mid-
period, spreading to the south-east towards the end of the
period, with W to SW swell.
AREA 2:
=======
MARINE METEOROLOGICAL BULLETIN FROM METEO-FRANCE/LA REUNION ON AREA ACK (AMSTERDAM-CROZET-KERGUELEN)
2026/07/06 AT 0500UTC
AVERAGED WIND SPEED ON BEAUFORT SCALE. (WIND GUSTS MAY BE ABOUT 40% STRONGER THAN THE AVERAGES GIVEN HERE).
PART 1: WARNING
- GALE FORCE 8 EXPECTED OVER CRO AND KER.
PART 2: GENERAL SYNOPSIS, 2026/07/06 AT 0000UTC
- HIGH 1030 HPA NEAR 40S/42E, MOVING NORTHEASTWARD.
- COLD FRONT REACHING SOUTH-WESTERN CRO AT FIRST.
PART 3: FORECAST FOR 24 HOURS FROM 2026/07/06 AT 0600UTC TO 2026/07/07 AT 0600UTC
WAM (30S/40S, 50E/65E)
FEW SHOWERS.
WIND: ANTICLOCKWISE 3 TO 5 FROM WEST TO EAST BUT SE 5 TO 6 OVER NORTH-
EASTERN LATER.
SEA : ROUGH TO VERY ROUGH AT FIRST BECOMING MODERATE TO ROUGH LATER. SOUTH-
WESTERLY SWELL 2 TO 4 M ABATING.
VIS : POOR IN PRECIPITATION.
AMS (30S/40S, 65E/80E)
SCATTERED SHOWERS.
WIND: SW 3 TO 4 OVER NORTHERN AND 5 TO 6 OVER SOUTHERN BACKING S LATER
INCREASING 5 TO 6 OVER NORTHERN BUT DECREASING 4 TO 5 OVER SOUTHERN.
SEA : VERY ROUGH TO HIGH BECOMING ROUGH TO VERY ROUGH SOON. SW SWELL 3 TO
5 M ABATING 2 TO 4 LATER.
VIS : POOR IN PRECIPITATION.
CRO (40S/50S, 50E/65E)
FRONTAL SHOWERS AND RAIN.
WIND: SW 4 TO 6 LOCALLY 7 OVER EASTERN VEERING NW 6 TO 7 LOCALLY 8 BY
WESTERN AHEAD OF THE FRONT BACKING W 5 TO 6 BEHIND OF THE FRONT AT
END. SEVERE GUSTS.
SEA : ROUGH TO VERY ROUGH. SOUTH-WESTERLY SWELL 2 TO 3 M.
VIS : VERY POOR IN PRECIPITATION.
KER (40S/50S, 65E/80E)
SCATTERED SHOWERS THEN FRONTAL SHOWERS AND RAIN OVER SOUTHWESTERN AT THE END.
WIND: SW 5 TO 6 LOCALLY 7 OVER SOUTHERN VEERING NW 6 TO 7 LOCALLY 8 BY
WESTERN AT END AHEAD THE FRONT. SEVERE GUSTS.
SEA : ROUGH TO VERY ROUGH LOCALLY HIGH OVER NORTHEASTERN AT FIRST. SW SWELL
3 OR 5 M ABATING.
VIS : VERY POOR IN PRECIPITATION.