WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE
12th OF NOVEMBER 2026 AT 17:00 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 122200 TO 132200 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. TRADES: S to SE 35 in the south-east.
2. CAPE EAST: NW to N 35 in the south-central parts by mid-period
spreading to the south-east by end of period.
3. MARION FORTIES EAST: W to NW 35 to 40 in the south-west by
mid-period spreading to the north towards end
of period.
SYNOPTIC CHART 12:00Z
=====================
High 1028 hPa 33s15w, High 1018 hPa 35s25e
Low 978 hPa 50s18e, Low 1012 hPa 21s37e, Low 976 hPa 54s63e.
AREA FORECAST:
==============
ASCENSION (06S/15S, 00E/20W):
WIND : E to SE 05 to 15.
VIS : Good.
ANGOLA (06S/15S, 00E/00N):
WIND : SW 05 to 15 in the east, otherwise S to SE 05 to 15.
VIS : Good.
ST HELENA (15S/30S, 00E/20W):
WIND : E to SE 05 to 15 reaching 20 in the west at times.
VIS : Good but moderate in showers and thundershowers in the south
west.
TRADES (15S/30S, 00E/WEST COAST):
WIND : S to SE 15 to 25 reaching 30 to 35 in the south-east.
VIS : Good.
SEA STATE: 3.0m in the south-east from mid-period, with SE swell.
TRISTAN (30S/40S, 00E/20W):
WIND : Anticyclonic 05 to 15 but NW 15 to 25 in the south-west.
VIS : Good.
SEA STATE: 3.0 to 3.5m in the southern parts, with SW swell.
CAPE WEST (30S/40S, 00E/20E):
WIND : SW 15 to 25 in the south-east until mid-period but S to SE 15
to 25 in the north-east reaching 30 otherwise Anticyclonic 05
to 15.
VIS : Good but moderate in showers and rain in the south-east at
first.
SEA STATE: 3.0 to 4.0m in the south, reaching 4.5 to 5.0m in the south-
east by mid-period, with W to SW swell.
CAPE EAST (32.5S/40S, 20E/50E):
WIND : SW to W 15 to 25 in the extreme west spreading to the west by
mid-period reaching 30 otherwise NW to N 15 to 25 reaching 35
in the south-central parts by mid-period spreading to the
south-east by end of period but Anticyclonic 05 to 15 in the
north-east until mid-period.
VIS : Good but moderate in showers and rain in the west spreading to
the east from mid-period.
SEA STATE: 3.0 to 4.0m, except in the north-east, reaching 4.5 to 5.5m in
the south-west from mid-period, with SW swell.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : NE 10 to 20 in the extreme west and north-east otherwise
variable 05 to 10 becoming SW 15 to 25 in the extreme south-
west by end of period.
VIS : Good but moderate in showers and thundershowers in the extreme
south-west towards mid-period.
MOZAMBIQUE CHANNEL:
WIND : Cyclonic 15 to 25 over the central parts, otherwise NE 05 to
15 but SE to E 10 to 20 in the south.
VIS : Good but moderate in showers and thundershowers in places over
the north-east and central parts.
MADAGASCAR EAST (10S/25S, EAST COAST/55E):
WIND : Anticyclonic 05 to 15 in the south otherwise SE 10 to 20.
VIS : Good.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : W to NW 15 to 25 reaching 30 in places but 35 to 40 in the
south-west by mid-period spreading to the north towards end of
period.
VIS : Good but moderate in showers and rain in the west spreading to
the east by mid-period.
SEA STATE: 3.5 to 4.5m reaching 5.5 to 6.5m in the south but 7.0 to 7.5m
in the south-west from mid-period, with W to NW swell.
AREA 2:
======
MARINE METEOROLOGICAL BULLETIN FROM METEO-FRANCE/LA REUNION ON AREA
ACK (AMSTERDAM-CROZET-KERGUELEN)
26/11/12 AT 1600UTC
AVERAGED WIND SPEED ON BEAUFORT SCALE. (WIND GUSTS MAY BE ABOUT 40%
STRONGER THAN THE AVERAGES GIVEN HERE).
PART 1: WARNING
GALE RUNNING OVER CRO AND KER.
PART 2: GENERAL SYNOPSIS, 26/11/12 AT 1200UTC
- LOW 965 NEAR 54S/58E, MOVING EASTWARD. COLD CF 33S/44E, 36S/50E,
40S/58E, 41S/60E, 45S/64E, 46S/65E, 40S/67E.
- HIGH 1022 OVER WAM AT
END.
PART 3: FORECAST FOR 24 HOURS FROM 26/11/12 AT 1800UTC TO 26/11/13
AT 1800UTC
WAM (30S/40S, 50E/65E)
RAIN, SHOWERS AND SQUALLS OVER SOUTHEASTERN AT FIRST (CF).
WIND: SW 4/6 BECOMING ANTICLOCKWISE 2/4 AT END.
SEA : MODERATE OVER NORTHERN, ROUGH OVER SOUTHERN BY SW SWELL 2 TO 4 M.
VIS : POOR TO VERY POOR IN PRECIPITATION.
AMS (30S/40S, 65E/80E)
RAIN, SHOWERS AND SQUALLS (CF).
WIND: N TO NW 4/5 OVER NORTHERN, 6/7 OVER SOUTHERN,
DECREASING SW 4/5 LATER.
SEA : MODERATE OVER NORTHERN, ROUGH OVER SOUTHERN BY SW SWELL
2 TO 4 M AT END.
VIS : POOR TO VERY POOR IN PRECIPITATION.
CRO (40S/50S, 50E/65E)
SCATTERED SHOWERS.
WIND: WESTERLY 6/7 LOCALLY 8 OVER SOUTHEN.
SEA : ROUGH TO VERY ROUGH, LOCALLY HIGH OVER SOUTHERN.
SW SWELL 3 TO 5 M AT END.
VIS : GOOD OR MODERATE.
KER (40S/50S, 65E/80E)
RAIN (CF).
WIND: NW 7/8 WITH SEVERE GUSTS DECREASING W 6/7 LOCALLY 8
OVER SOUTHERN.
SEA : ROUGH TO VERY ROUGH BECOMING HIGH OVER SOUTHWESTERN AT END.
NW SWELL 2 TO 4 M THEN SW SWELL 2 TO 4 M AT END.
VIS : POOR IN PRECIPITATION.