IOR
WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII. EAST OF 20E.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE 16TH OF OCTOBER 2024 AT 16:30 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 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:
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1. CAPE EAST : E to NE 35 to 40 in the north-west during the first half
of the period.
2. DURBAN EAST: SW 35 to 40 in the south-east during the first half of
the period.
SYNOPTIC CHART 12:00Z
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High 1032 hPa 40s37e
Low 1006 hPa 31s53e
1. Cold Front: 35s02e 40s07e 45s15e 50s20e into 64s04e 2. Cold Front:
25s52e into 31s53e
AREA FORECAST:
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CAPE EAST (32.5S/40S, 20E/50E):
WIND : SE 20 to 30 in the north-east, otherwise E to NE 15 to 25
reaching 30 to 40 in the north-west during the first half of
the period. It will become S to SW 15 to 25 in the west
towards mid-period.
VIS : Moderate to poor in showers and rain in places.
SEA STATE: 3.0 to 4.0m in the west with E to NE swell, but 4.5 to 5.0m in
the north-east during the first half of the period with SW
swell.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : NW 15 to 25 in the east, otherwise S to SE 15 to 25 but SW 30
to 40 in the south-east during the first half of the period
but NE 20 to 30 in the south-west, spreading to the north-west
by mid-period.
VIS : Moderate to poor in showers and rain in places.
SEA STATE: 3.0 to 4.0m, reaching 5.0 to 6.0m in the south-east, with S to
SW swell but SE to E swell in the west.
MOZAMBIQUE CHANNEL:
WIND : S to SE 15 to 25, becoming NE 15 to 25 in the south-west by
mid-period.
VIS : Moderate to poor in rain and showers.
SEA STATE: 3.0 to 3.5m over the southern half, with SW to S swell.
MADAGASCAR EAST (10S/25S, EAST COAST/55E):
WIND : E to SE 10 to 20 in the north, otherwise NE to N 10 to 20 but
SW 15 to 25 in the south, spreading over the central parts by
end of period.
VIS : Moderate to poor in showers and rain.
SEA STATE: 3.0 to 3.5m in the south, with SW to S swell.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : W to NW 15 to 25 but variable 05 to 10 in the north.
VIS : Good, but moderate in showers in the south and north-west.
SEA STATE: 3.0 to 3.5m in in the south and east, with mainly W to SW
swell.
AREA 2:
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MARINE METEOROLOGICAL BULLETIN FROM METEO-FRANCE/LA REUNION ON AREA ACK (AMSTERDAM-CROZET-KERGUELEN)
24/10/16 AT 1600UTC
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 North-western WAM.
PART 2: GENERAL SYNOPSIS, 24/10/16 AT 1200UTC
– Thundery low 1005 hPa near 31S/52E moving slowly eastward over far north-western WAM.
– High 1030 hPa near 40S/38E slowly moving eastward. Associated ridge extending eastward.
PART 3: FORECAST FOR 24 HOURS FROM 24/10/16 at 1800UTC to 24/10/17 at 1800UTC
WAM (30S/40S, 50E/65E)
Rain and showers with the front. Squalls.
WIND: clockwise 5 to 7 , locally 8 over north-western. Gusts. Variable
or anticlockwise 3 to 5 in southern.
SEA : rough to very rough. Long SW swell 4 to 5 m abating.
VIS : Poor to very poor in precipitations.
AMS (30S/40S, 65E/80E)
Frontal rain and showers.
WIND: west to northwest 3 to 5 over Northern area ahead front backing SW
4 to 6 behind over Southern area.
SEA : rough to very rough. SW swell 3 to 4 m.
VIS : poor in precipitations.
CRO (40S/50S, 50E/65E)
Scattered showers.
WIND: W 4 to 6, locally 7 in south-east and decreasing anticlockwise 3 to
5 over northern area.
SEA : very rough becoming rough by west during the period. Long SW swell
4m at first abating 3m at end.
VIS : moderate in precipitation.
KER (40S/50S, 65E/80E)
Scattered showers.
WIND: W to SW 5 to 7. Gusts.
SEA : very rough to high. Long SW swell 3 to 5 m.
VIS : moderate in precipitations.
ENDS DE CAPE TOWN RADIO/ZSC+
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