WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE
04th OF JULY 2026 AT 17:15 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 042200 TO 052200 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: W to NW 35 in the south-east at first.
SYNOPTIC CHART 12:00Z
=====================
High 1022 hPa 46s37e.
Low 978 hPa 43s04e Low 983 hPa 39s56e.
Cold front 1: 30s06w 35s00e 40s06e 43s08e into 43s04e.
AREA FORECAST:
==============
ASCENSION (06S/15S, 00E/20W):
WIND : SE to E 10 to 15.
VIS : Good.
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 : E to SE 10 to 15 in the extreme north, otherwise variable 05 to
15.
VIS : Good but moderate in showers and rain in places in the south.
TRADES (15S/30S, 00E/WEST COAST):
WIND : S to SE 10 to 20 in the north and east, otherwise variable 05 but
NW 10 to 20 in the south-west.
VIS : Good, becoming moderate in showers and rain in the south-west.
TRISTAN (30S/40S, 00E/20W):
WIND : W to SW 15 to 25 reaching 30 in the south-east but variable 05 in
the north. It will become N to NE 15 to 25 in the north-west from
mid-period.
VIS : Good but moderate in showers and rain in the south.
SEA STATE: 3.0 to 4.0m reaching 4.5m in the extreme south, with SW to W
swell.
CAPE WEST (30S/40S, 00E/20E):
WIND : W to NW 15 to 25 reaching 30 in the south but 35 in the south-east
at first. It will become anticyclonic 05 to 15 in the north from
mid-period.
VIS : Good in the north-east, otherwise moderate to poor in frontal
showers and rain.
SEA STATE: 3.0 to 4.0m, except in the north-east, reaching 4.5 to 5.0m in the
extreme south, with W to SW swell.
CAPE EAST (32.5S/40S, 20E/50E):
WIND : Anticyclonic 05 to 15 in the east at first, otherwise W to SW 15
to 25 but NW 15 to 25 in the west reaching 30 in the south-west.
VIS : Good in the north-west, otherwise moderate in showers and
thundershowers.
SEA STATE: 3.0 to 3.5m reaching 4.0 to 5.0m in the extreme east and the
south-west, with S to SE swell but NW swell in the south-west.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : S to SW 10 to 20 but anticyclonic 05 to 10 in the west. It will
become N to NE 15 to 25 in the extreme south-west from mid-period.
VIS : Good but moderate in showers and thundershowers in the extreme
south.
SEA STATE: 3.0 to 4.0m over the central and eastern parts reaching 4.5 to
5.0m in the south-east for the first half of the period, with S to
SW swell.
MOZAMBIQUE CHANNEL:
WIND : S to SE 10 to 15 reaching 20 in the south-east.
VIS : Mainly good.
SEA STATE: 3.0m in the south, with S to SW swell.
MADAGASCAR EAST (10S/25S, EAST COAST/55E):
WIND : Variable 05 to 10 in the south at first, otherwise S to SE 10 to
20.
VIS : Good but moderate in showers and rain in the north.
SEA STATE: 3.0m in the extreme south, with SW swell.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : S to SW 10 to 20 in the east, otherwise anticyclonic 05 to 15 but
N to NE 15 to 25 in the west reaching 30 in the south-west
from mid-period.
VIS : Moderate in light snow showers in the south and moderate in
showers and rain in the north-west, otherwise good.
SEA STATE: 3.0m in the extreme east at first and in the extreme west towards
the end of the period, with S to SW swell but NW swell in the
extreme west.
AREA 2:
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MARINE METEOROLOGICAL BULLETIN FROM METEO-FRANCE/LA REUNION ON AREA
ACK (AMSTERDAM-CROZET-KERGUELEN)
26/07/04 AT 1700UTC
AVERAGED WIND SPEED ON BEAUFORT SCALE. (WIND GUSTS MAY BE ABOUT 40%
STRONGER THAN THE AVERAGES GIVEN HERE).
PART 1: WARNING
- STRONG GALE TO STORM RUNNING OVER SOUTHERN WAM AND NORTHERN KER.
- GALE RUNNING OVER SOUTHERN WAM AND NORTHERN KER.
- LATER: VIOLENT STORM EXPECTED OVER SOUTHERN AMS AND NORTHERN KER.
PART 2: GENERAL SYNOPSIS, 26/07/04 AT 1200UTC
- DEEPENING LOW 983 HPA NEAR 40S/57E, MOVING EASTWARD EXPECTED 978
HPA NEAR 41S/70E AT 06TU THEN 975 HPA NEAR 41S/80E AT END.
- ASSOCIATED TO THE LOW: COLD FRONT AXIS 28S/52E, 32S/59E, 39S/65E
AND WARM FRONT AXIS 42S/61E, 42S/68E, 39S/73E, MOVING EASTWARD.
PART 3: FORECAST FOR 24 HOURS FROM 26/07/04 AT 1800UTC TO 26/07/05
AT 1800UTC
WAM (30S/40S, 50E/65E)
FRONTAL RAIN, SQUALLS AND SHOWERS, BECOME LESS FREQUENT SOON.
WIND: CLOCKWISE 7 OR 8, LOCALLY 9 OR 10 OVER WEST OF THE LOW,
DECREASING S 3 TO 5 BY WESTERN AREA SOON. VIOLENT GUSTS.
SEA: VERY ROUGH TO HIGH , BECOMING ROUGH OVER WESTERN AREA AT END. W
SWELL 4 OR 6 METERS, THEN ABATING S 2 TO 4 METERS BEHIND THE LOW.
VISI : VERY POOR IN PRECIPITATION.
AMS (30S/40S, 65E/80E)
FRONTAL RAIN, SQUALLS AND SHOWERS MAINLY SOUTHERN.
WIND: NW 6 TO 7, LOCALLY 8, INCREASING CLOCKWISE 7 TO 8 OVER FAR
SOUTHERN SOON AND REACHING 9 TO 10 AT TIMES 11 NEAR THE CENTER LATER.
VIOLENT GUSTS.
SEA: ROUGH TO VERY ROUGH AT FIRST, BECOMING HIGH TO LOCALLY VERY HIGH
OVER SOUTHERN SOON. SW SWELL 3 TO 5 METERS, INCREASING LOCALLY 5 TO
6 METERS OVER SOUTHERN AREA.
VISI: VERY POOR IN PRECIPITATION.
CRO (40S/50S, 50E/65E)
FRONTAL RAIN, SQUALLS AND SHOWERS OVER NORTHERN, BECOME LESS FREQUENT
AT END.
WIND: CLOCKWISE 7 OR 8 OVER NORTHERN, LOCALLY 9 TO 10 OVER WEST OF
THE LOW AND LEAVING THE AREA BY NORTHEASTERN AREA SOON. ELSEWHERE, S
THEN SW 4 TO 6. VIOLENT GUSTS.
SEA: ROUGH OVER SOUTHERN, VERY ROUGH TO HIGH IN NORTH. S SWELL
BETWEEN 2 TO 3 METERS.
VISI: VERY POOR IN PRECIPITATION.
KER (40S/50S, 65E/80E)
FRONTAL RAIN, SQUALLS AND SHOWERS.
WIND:
- NORTHERN: CLOCKWISE 7 TO 8, INCREASING 9 TO 10 NEAR THE CENTER
LATER AND LOCALLY 10/11 AT END. VIOLENT GUSTS.
- SOUTHERN: VARIABLE 2 TO 4, INCREASING 5 TO 6 LOCALLY 7 AT FIRST,
AND VEERING W 4 TO 6 BY WESTERN AREA BEHIND THE LOW LATER. VIOLENT GUSTS.
SEA: ROUGH TO VERY ROUGH IN SOUTH, VERY ROUGH TO HIGH IN NORTH,
LOCALLY VERY ROUGH OVER NORTHEASTERN AREA AT END. SW SWELL 4 OR 5
METERS ABATING.
VISI: VERY POOR IN PRECIPITATION.