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WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII EAST OF 20 EAST.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE 30th OF MAY 2024 AT 08:30 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 301000 TO 311000 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: NW to N 35 to 40 over the south-central during the first
half of the period. It will be SW 35 in the extreme west at first.
2. MARION FORTIES EAST: NW to W 35 to 40. It will become SW 35 in
the north-west from mid-period.
SYNOPTIC CHART 06:00Z
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High 1032 hPa 40s20w High 1028 hPa 35s55e
Low 980 hPa 50s30e
Cold front: 30s15e 35s20e 40s23e 45s28e into 50s30e.
AREA FORECAST:
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CAPE EAST (32.5S/40S, 20E/50E):
WIND : NW to N 15 to 25 reaching 35 to 40 over the south-central
during the first half of the period. It will be SW 15 to 25 in
the extreme west reaching 35 at first, becoming S to SE 10 to
20 towards the end of the period.
VIS : Moderate in showers and rain.
SEA STATE: 3.0 to 4.0m reaching 4.5 to 5.0m in the west, NW swell but SW
in the west.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : NE to N 15 to 25 but SW 15 to 25 in the south-west reaching 30
during the first half of the period.
VIS : Good in the extreme west, otherwise moderate in showers and
rain in places.
SEA STATE: 3.0m in the east, SW to S swell.
MOZAMBIQUE CHANNEL:
WIND : SE to S 10 to 20 but E to NE 10 to 15 in the south.
VIS : Good.
MADAGASCAR EAST:
WIND : SE 10 to 20 reaching 25 in places, but E to NE 15 to 25
in the south.
VIS : Moderate in showers and thundershowers but poor in the north.
SEA STATE: 3.0m in the central and eastern parts, S to SW swell.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : NW to W 20 to 30 reaching 40. It will become SW 25 to 35 in
the north-west from mid-period.
VIS : Moderate to poor in showers and rain.
SEA STATE: 3.0 to 4.0 reaching 5.0 to 6.0m, NW swell.
AREA 2:
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MARINE METEOROLOGICAL BULLETIN FROM METEO-FRANCE/LA REUNION ON AREA ACK
(AMSTERDAM-CROZET-KERGUELEN)
DATE: 24/05/30 at 0500UTC
AVERAGED WIND SPEED ON BEAUFORT SCALE. (Wind gusts may be about 40% stronger than the averages given here.).
PART 1: WARNING:
– Gale force 8 over AMS, CRO, KER.
PART 2: GENERAL SYNOPSYS, 24/05/30 at 0000 UTC :
– Arrival of a cold front by Western CRO at end.
– High 1030 over WAM.
PART 3: FORECAST FOR 24 HOURS from 30/05/24 at 0600 UTC to 31/05/24 at 0600UTC :
WAM (30S/40S,50E/65E):
WIND: Anticlockwise 3 to 5, setting-up North-West 6 over South-Western
area at end.
SEA : Rough or very rough. South-West swell 4 to 6 m abating.
VISI: Good
AMS (30S/40S,65E/80E): Scattered showers.
WIND: Anticlockwise 3 to 5 over North-Western area. South-West 5 to 6
elsewhere, increasing 7 to 8 over South-Eastern area.
SEA : Very rough or high. South-West swell 4 or 6 m.
VISI: Poor or very poor in precipitations.
CRO (40S/50S,50E/65E):
Rains or showers. Snow in far south.
WIND: West to South-West 5 to 6, locally 7 over South-Eastern area.
Setting-up North-West 5 to 6 by Western area at end of day and
increasing 7 to 8 at end. Severe gusts.
SEA : Rough or very rough, high over Eastern area at beginning. South-
West swell 3 to 5 m.
VISI: Poor or very poor in rains or showers.
KER (40S/50S,65E/80E): Showers. Snow in south.
WIND: Southwest 7 or 8, setting-up Westerly 5 to 6 by Western area at
end. Severe gusts.
SEA : Very rough or high. West to South-West swell 5 or 6 m.
VISI: Poor or very poor in rains or showers.
ENDS DE CAPE TOWN RADIO/ZSC+
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