WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE
19TH OF MAY 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 192200 TO 202200 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: E to SE 35 in the south-east at first.
2. MARION FORTIES EAST: SW 35 in the south-east and eastern parts until
mid-period.
SYNOPTIC CHART 12:00Z
=====================
High 1035 hPa 43s21e
Low 987 hPa 45s12w, Low 1014 hPa 31s15e.
1. Cold Front: 28s30w 34s18w 40s12w 44s11w into 45s12w.
AREA FORECAST:
==============
ASCENSION (06S/15S, 00E/20W):
WIND : E to SE 10 to 20.
VIS : Good.
ANGOLA (06S/15S, 00E/00N):
WIND : SW 05 to 10 in the east, otherwise S to SE 10 to 20.
VIS : Good.
ST HELENA (15S/30S, 00E/20W):
WIND : NE 05 to 15 in the south but N to NW 10 to 20 in the south-
west, otherwise E to SE 05 to 15.
VIS : Good, but moderate in rain and showers in the extreme south-
west.
TRADES (15S/30S, 00E/WEST COAST):
WIND : Variable 05 to 10 in the extreme south-east otherwise S to SE
10 to 20.
VIS : Good.
SEA STATE: 3.0 to 3.5m in the central and southern parts until mid-
period, with S to SE swell.
TRISTAN (30S/40S, 00E/20W) :
WIND : W to SW 05 to 15 in the south-west until mid-period, otherwise
N to NW 15 to 25 reaching 30 in places.
VIS : Good, but moderate to poor in showers and thundershowers in
the north-west, central and south-west, spreading to the
south-east by mid-period.
SEA STATE: 3.0 to 4.0m except in the north-east, with NW swell over the
central parts, otherwise W to SW swell.
CAPE WEST (30S/40S, 00E/20E):
WIND : Cyclonic 05 to 10 in the north-east but Anticyclonic 05 to 15
in the north-west and south-east, otherwise E to SE 15 to 25
reaching 30 to 35 in the south-east at first.
in the south-east moderating towards the end of the period.
VIS : Good, but moderate in showers and thundershowers in places in
the central-east, spreading to the extreme south-west.
SEA STATE: 3.0 to 3.5m in the north and east, reaching 4.0m in the north-
East until mid-period, with E to SE swell.
CAPE EAST (32.5S/40S, 20E/50E):
WIND : E to SE 15 to 25 in the west and central parts, reaching 30 in
places in the north-west, otherwise S to SW 10 to 20 reaching
25 in the south-east until mid-period becoming Anticyclonic 05
to 15 in the central-parts.
VIS : Good, but moderate in showers and thundershowers in places in
the north.
SEA STATE: 3.0 to 3.5m except in the north-east, reaching 4.0 to 5.0m in
the north-west at first, spreading to the south-east from mid-
period, but 5.5 to 6.0m in the extreme south-east by the end
of the period, with E to SE swell in the west otherwise SW
swell.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : Variable 05 to 10 in the south-west, otherwise E to SE 15 to
25.
VIS : Good, but moderate in showers and thundershowers in places.
SEA STATE: 3.0m in the southern-half from mid-period, with S to SE swell.
MOZAMBIQUE CHANNEL:
WIND : S to SE 15 to 20, reaching 25 to 30 in the south-east, but SW
10 to 20 in the north, reaching 25 in places in the north-
west.
VIS : Good, but moderate in showers and rain in places in the west
and south.
SEA STATE: 3.0 in the south-east, SE swell.
MADAGASCAR EAST (10S/25S, EAST COAST/55E):
WIND : S to SE 05 to 15, reaching 20 to 30 in the north.
VIS : Good, but moderate in showers and rain in places in places.
SEA STATE: 3.0m in the north.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : SW 15 to 25 reaching 30 to 35 in the south-east and eastern
parts until mid-period, becoming W to NW 15 to 25 in the
south-west from mid-period, reaching 30 to 35 in the south by
the end of the period.
VIS : Good, but moderate in showers and rain in the south by the end
of the period.
SEA STATE: 5.0 to 6.0m in the south and east reaching 6.5 to 7.5m,
but 8.0m in the south-east at first, otherwise 3.0 to 4.0m,
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)
26/05/19 AT 0500UTC
AVERAGED WIND SPEED ON BEAUFORT SCALE. (WIND GUSTS MAY BE ABOUT 40% STRONGER THAN THE AVERAGES GIVEN HERE).
PART 1: WARNING
- GALE CONTINUING OR EXPECTED OVER CRO AND KER.
PART 2: GENERAL SYNOPSIS, 26/05/19 AT 0000UTC
- LOW 973 NEAR 59S/55E, SLOWLY MOVING EASTWARDS. ASSOCIATED COLD FRONTS CROSSING CRO AND KER.
- ANTICYCLONIC BELT 1027 OVER WAM AND AMS.
PART 3: FORECAST FOR 24 HOURS FROM 26/05/19 AT 0600UTC TO 26/05/20 AT 0600UTC
WAM (30S/40S, 50E/65E)
RAIN OR SHOWERS OVER FAR NORTH. FRONTAL SHOWERS FROM SOUTHWEST.
WIND :
- IN NORTH: ANTICLOCKWISE 3 TO 5.
- IN SOUTH: NORTHWEST INCREASING 6 OR 7, BACKING SOUTHWEST LATER.
GUSTS.
SEA : MODERATE OR ROUGH, BECOMING LOCALLY VERY ROUGH IN SOUTH LATER.
VIS : POOR IN PRECIPITATION.
AMS (30S/40S, 65E/80E)
SCATTERED SHOWERS.
WIND : ANTICLOCKWISE 3 TO 5, INCREASING NORTHWEST 6 OR 7 IN SOUTH LATER.
GUSTS.
SEA : ROUGH IN SW SWELL, BECOMING LOCALLY VERY ROUGH AT END IN FAR
SOUTHWEST.
VIS : POOR IN PRECIPITATION.
CRO (40S/50S, 50E/65E)
FRONTAL RAIN AND SHOWERS.
WIND : NORTHWEST 6 OR 7, AT TIMES 8, BACKING SOUTHWEST LATER. SEVERE
GUSTS.
SEA : ROUGH OR VERY ROUGH, LOCALLY HIGH IN SOUTHWEST. SW SWELL 4 OR 5 M
IN SOUTH.
VIS : POOR OR VERY POOR IN PRECIPITATION.
KER (40S/50S, 65E/80E)
RAIN AND FRONTAL SHOWERS.
WIND : WESTERLY 6 OR 7, AT TIMES 8. SEVERE GUSTS.
SEA : ROUGH OR VERY ROUGH. SW SWELL 4 OR 5 M IN SOUTHWEST.
VIS : POOR OR VERY POOR IN PRECIPITATION.