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WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII. EAST OF 20E.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE 23rd OF MAY 2024 AT 17:30 UTC.
FOR SOUTH-EAST SECTOR OF METAREA. VII, PREPARED BY REUNION, SEE AREA 2 BELOW.
NOTE: WX OBSERVATIONS.
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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 232200 TO 242200 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:
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1. CAPE EAST: Cyclonic 35 in the south-east from mid-period.
SYNOPTIC CHART 12:00Z
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High 1032 hPa 36s04w High 1030 hPa 32s51e.
Low 1014 hPa 35s30e Low 1018 hPa 25s14w.
AREA FORECAST:
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CAPE EAST (32.5S/40S, 20E/50E):
WIND : N to NW 15 to 25 in the east, otherwise S to SE 15 to 25. It
will become anti-cyclonic 05 to 15 in the west from mid-
period but cyclonic 25 to 35 in the south-east.
VIS : Moderate in showers and rain but poor over the central and
south-eastern parts.
SEA STATE: 3.0 to 3.5m, with SW swell.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : Anti-cyclonic 05 to 10 in the south-east, otherwise E to NE 10
to 20 but S to SW 10 to 20 in the south-west.
VIS : Moderate in showers and rain in the south-western parts,
otherwise good.
SEA STATE: 3.0m in the south-east at first, with SW swell.
MOZAMBIQUE CHANNEL:
WIND : E to SE 10 to 15 reaching 20 to 25 in the north.
VIS : Good but moderate in isolated thundershowers in the north.
MADAGASCAR EAST:
WIND : E to SE 15 to 25 reaching 30 in the north.
VIS : Moderate in showers and rain.
SEA STATE: 3.0 to 3.5m in the north, with SE swell.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : Anti-cyclonic 05 to 10 in the north, otherwise W to NW 15 to
25 reaching 30 in the south at times.
VIS : Moderate in showers and rain in the south, otherwise good.
SEA STATE: 3.0 to 4.0m reaching 4.5 to 5.5m in the south, 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)
DATE: 24/05/23 at 1700 UTC:
AVERAGED WIND SPEED ON BEAUFORT SCALE. (Wind gusts may be stronger than averages given here).
PART 1: WARNING :
Gale running over KER.
PART 2: GENERAL SYNOPSYS, 24/05/23 at 1200 UTC :
– Warm front 39S/52E, 40S/45E, 40S/38E, moving east-south-eastward.
– High 1029 in north-west of WAM, slow-moving with a ridge toward
Crozet’s islands on the 24/05/2024 at 12 UTC.
PART 3: FORECAST FOR 24 HOURS from 23/05/24 at 1800 UTC to 24/05/24 at 1800 UTC :
WAM (30S/40S,50E/65E) :Rain over southern.
WIND: anticlockwise 3/5 over northern, Westerly 4/6 over southern,
backing S 4/5.
SEA : rough or very rough. SW swell 3 to 5 m, locally 6 m over far south-
eastern.
VISI: poor in precipitations.
AMS (30S/40S,65E/80E) :Rain over far southern later.
WIND: SW 3/4 over northern and 5/7 over southern.
SEA : rough or very rough in north, very rough or high in south. Long SW
swell 3 to 5 m in north, 5 to 7 m in south.
VISI: good becoming poor from south.
CRO (40S/50S,50E/65E) :Rain over northern, showers and squalls over southern.
WIND: Westerly 5/7 decreasing 4/5 later.
SEA : very rough or high, becoming rough over far north-western soon.
Long SW swell 5 to 7 m in north decreasing 2 to 4 m, 2 to 4 m in
south increasing 4 to 6 m later.
VISI: poor or very poor in precipitations.
KER (40S/50S,65E/80E) :Showers and squalls, rain over northern soon.
WIND: W or SW7/9 decreasing 6/8. Severe gusts.
SEA : high or very high, becoming very rough to high. Long SW swell 5 to
7 m decreasing 2 to 4 m at end.
VISI: poor or very poor in precipitations.
ENDS DE CAPE TOWN RADIO
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