WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE
16TH OF MAY 2026 AT 16:15 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 162200 TO 172200 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. MARION FORTIES EAST: NW to N 35 in the south-west by the end of the
period.
2. TRISTAN: N to NW 35 in the west towards mid-period, drifting to the
south by the end of the period.
SYNOPTIC CHART 12:00Z
=====================
High 1028 hPa 33s01w, High 1031 hPa 40s32e.
1. Cold Front: 38s01e 44s08e 49s12e 54s11e into 52s07e.
AREA FORECAST:
==============
ASCENSION (06S/15S, 00E/20W):
WIND : SE to E 10 to 15.
VIS : Good.
ANGOLA (06S/15S, 00E/00N):
WIND : S to SE 10 to 15 in the west, but variable 05 to 10 in the
east.
VIS : Good.
ST HELENA (15S/30S, 00E/20W):
WIND : N to NE 05 to 15 in the south, otherwise SE to E 10 to
20. It will become NW 10 to 20 in the extreme south-west from
mid-period.
VIS : Good, but moderate in rain in places in the west.
SEA STATE: 3.0m in the east, with SE swell.
TRADES (15S/30S, 00E/WEST COAST):
WIND : SE to S 15 to 25.
VIS : Good.
SEA STATE: 3.0m, with SE to S swell.
TRISTAN (30S/40S, 00E/20W) :
WIND : Anticyclonic 05 to 15 in the east, but NE 15 to 25 in the
southern parts, otherwise N to NW 15 to 25, reaching 30 to
35 in the west towards mid-period, drifting to the south by
the end of the period.
VIS : Good, but moderate to poor in showers and thundershowers in
the western and central parts, spreading to the south-eastern
parts towards the end of the period.
SEA STATE: 3.0m in places in the south at first as well as west and
central parts, with W to SW swell, but NW in the west.
CAPE WEST (30S/40S, 00E/20E):
WIND : W to SW 05 to 15 in the south at first, but anti-cyclonic 05
to 15 in the west, otherwise S to SE 15 to 25, reaching 30
in places in the east and south-east towards the end of the
period.
VIS : Good, but moderate in showers and rain in places in the
south-east.
SEA STATE: 3.0m in the north-east, while in the south from mid-period,
with SE to S swell, but SW in the south.
CAPE EAST (32.5S/40S, 20E/50E):
WIND : E to SE 15 to 25 in the north-east at first, as well as in
the south-west from mid-period, but NE 15 to 25 in places in
the north-west, otherwise anticyclonic 05 to 15.
VIS : Good, but moderate in showers and rain in places in the
western and northern parts.
SEA STATE: 3.0 to 4.0m in places in the east, reaching 4.5 to 5.0m in
the south-east until towards the end of the period, with SW
swell.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : Variable 05 to 10 in the north-east until mid-period,
otherwise E to SE 10 to 20 reaching 25 in the central parts,
but NE 15 to 25 in the south-west.
VIS : Good, but moderate in showers and rain in the west and
moderate to poor in showers and thundershowers in the east.
SEA STATE: 3.0 to 3.5m in the east, with S to SE swell.
MOZAMBIQUE CHANNEL:
WIND : SE to E 15 to 25 in the south, otherwise S to SW 05 to 15.
VIS : Good, but moderate to poor in showers and thundershowers in
the south.
SEA STATE: 3.0 to 3.5m in the south, with S to SE swell.
MADAGASCAR EAST (10S/25S, EAST COAST/55E):
WIND : SE to E 05 to 15.
VIS : Good, but moderate in showers and rain in places, but moderate
to poor in showers and thundershowers in the south-west
towards mid-period.
SEA STATE: 3.0m in the south, with SE to S swell.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : W to SW 20 to 30, otherwise NW to N 20 to 30 spreading to the
east from mid-period but 10 to 20 in the north, while reaching
35 in the south-west by the end of the period.
VIS : Good, but moderate in showers and rain in the south-west
drifting to the south-east towards the end of the period.
SEA STATE: 3.0 to 4.0m reaching 4.5 to 5.5m in south-east at first and in
the south-west by the end of the period, with W to SW swell.
AREA 2:
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MARINE METEOROLOGICAL BULLETIN FROM METEO-FRANCE/LA REUNION ON AREA
ACK (AMSTERDAM-CROZET-KERGUELEN)
26/05/16 AT 1600UTC
AVERAGED WIND SPEED ON BEAUFORT SCALE. (WIND GUSTS MAY BE ABOUT 40%
STRONGER THAN THE AVERAGES GIVEN HERE).
PART 1: WARNING
- NIL.
PART 2: GENERAL SYNOPSIS, 26/05/16 AT 1200UTC
- LOW 966 NEAR 55S/62E, RATHER QUICKLY MOVING EASTWARD.
- TROUGH TOWARD KER AND RIDGE TOWARD CRO AT END.
- HIGH OVER WAM AND AMS.
PART 3: FORECAST FOR 24 HOURS FROM 26/05/16 AT 1800UTC TO 26/05/17
AT 1800UTC
WAM (30S/40S, 50E/65E)
RAIN OR SHOWERS OVER NORTHERN.
WIND: SOUTHERLY 4/5.
SEA: ROUGH, LOCALLY VERY ROUGH OVER SOUTHEASTERN. SW SWELL 3 TO 4 M.
VISI: POOR IN PRECIPITATION.
AMS (30S/40S, 65E/80E)
RAIN, SHOWERS OR SQUALLS.
WIND: WESTERLY 4/5 LOCALLY 6 OVER SOUTHERN.
SEA: ROUGH, VERY ROUGH OVER SOUTHERN. SW SWELL INCREASING 3 TO 5 M
OVER SOUTHERN.
VISI: POOR TO VERY POOR IN PRECIPITATION.
CRO (40S/50S, 50E/65E)
SHOWERS OR SQUALLS.
WIND: WESTERLY 6/7. SEVERE GUSTS AT FIRST.
SEA: VERY ROUGH TO HIGH BECOMING ROUGH OVER WESTERN AT END. SW SWELL
4 TO 6 M.
VISI: POOR TO VERY POOR IN PRECIPITATION.
KER (40S/50S, 65E/80E)
RAIN, SHOWERS OR SQUALLS.
WIND: WESTERLY 6/7. SEVERE GUSTS.
SEA: VERY ROUGH TO HIGH. SW SWELL INCREASING 4 TO 6 M.
VISI: POOR TO VERY POOR IN PRECIPITATION.=