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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 JUNE 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. TRISTAN : W to NW 35 to 40 in the south-west, spreading to the south-
east towards the end of the period.
2. MARION FORTIES EAST : N to NW 35 to 45 in the south-west at first,
spreading to the south-east by the end of the period.
SYNOPTIC CHART 12:00Z
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High 1028 hPa 30s18w
High 1036 hPa 43s48e.
Low 980 hPa 36s23e
Low 1014 hPa 50s11e
Low 1006 hPa 49s64e.
1. Cold Front: 37s08e 42s12e 47s23e 52s25e into 50s11e.
2. Cold Front: 30s07e 35s12e 40s20e 45s23e 50s25e 55s24e cont.
3. Cold Front: 33s52e 38s58e 43s63e 48s65e into 49s64e.
AREA FORECAST:
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CAPE EAST (32.5S/40S, 20E/50E):
WIND : Variable 05 to 15 in the extreme east where it will be S to SE
15 to 25 at first, otherwise N to NW 15 to 25, but SW 10 to 15
in the extreme west.
VIS : Good, but moderate in showers and rain in the extreme south-
west.
SEA STATE: 3.0 to 4.0m, reaching 4.5 to 5.5m in the south-west, W to SW
swell.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : E to SE 10 to 20, but NE 10 to 20 in the extreme south-west.
VIS : Good, but moderate in showers in places in the east.
SEA STATE: 3.0m in the south-central parts at first, spreading to the
east by the end of the period, S to SW swell.
MOZAMBIQUE CHANNEL:
WIND : E to SE 10 to 20, reaching 25 in the south-east.
VIS : Moderate in showers, becoming good in the south.
MADAGASCAR EAST:
WIND : E to SE 10 to 20, reaching 25 in the north-west.
VIS : Moderate in showers in places.
SEA STATE: 3.0m in the north, SE swell.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : Variable 05 to 15 in the south-east at until mid-period,
otherwise N to NW 15 to 25, reaching 35 to 45 at first,
spreading to the south-east by the end of the period.
VIS : Moderate to poor in showers and rain, but good in the north-
east.
SEA STATE: 3.0 to 4.0m, reaching 5.0 to 6.0m in the south-west, spreading
to the south-east by the end of the period, but 6.5 to 7.0m in
the extreme south-west at first, N to NW swell.
AREA 2:
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MARINE METEOROLOGICAL BULLETIN FROM METEO-FRANCE/LA REUNION ON AREA ACK (AMSTERDAM-CROZET-KERGUELEN)
DATE: 24/06/23 at 1700 UTC
AVERAGED WIND SPEED ON BEAUFORT SCALE. (Wind gusts may be stronger than averages given here).
PART 1: WARNING :
Gale force 8 over CRO and KER.
PART 2: GENERAL SYNOPSYS, 24/06/23 at 1200 UTC :
High 1039 near 42S/39E moving eastward.
High 1034 near 35S/6832E moving slowly eastward.
Between these two cells, waving front CF with embedded low 1014 near 41S/62E at end.
PART 3: FORECAST FOR 24 HOURS from 23/06/24 at 1800 UTC to 24/06/24 at 1800 UTC :
WAM (30S/40S,50E/65E) :
Frontal rain and showers.
WIND: NW 4/5 increasing 6/7 ahead CF and backing SW then S 6/7 behind,
decreasing 4/5 over western part at end.
SEA: Rough to very rough from north to south. SW swell 2 to 3 m.
VIS: Poor under precipitation.
AMS (30S/40S,65E/80E) :
Frontal rain and showers, squalls over western part soon.
WIND: Anticlockwise 3/5, increasing NW 6/7 over western part with CF.SEA:
rough to very rough. SW swell 3 m.
VIS: Good becoming poor over western soon.
CRO (40S/50S,50E/65E) :
Frontal rain and showers with CF.
WIND: NW 7/8 ahead CF over north-eastern part, backing southerly 65/7
behind, locally 8 over north-eastern part; decreasing later over
western part becoming anticlockwise 3/5 but increasing NW 7 over
southwestern part at end with new front and becoming clockwise 6/8
over north-eastern part with waving CF. Severe gusts.
SEA: Very rough. W swell 3 to 5 m.
VIS: Poor to very poor under precipitation.
KER (40S/50S,65E/80E) :
Frontal rains and showers.
WIND: Westerly 4/5 veering NW 6/7 ahead CF and backing southerly 6/7
behind but becoming clockwise 6/8 over north-western part with
waving CF. Easterly 4/5 over southern part at end.
SEA: Rough to very rough. W swell increasing 4/5 m.
VIS : Poor under precipitation.
ENDS THIS IS CAPE TOWN RADIO
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