AOR-E
WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII WEST OF 20E.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE 13TH OF OCTOBER 2024 AT 08:30 UTC.
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 131000 TO 141000 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. TRADES: S to SE 35 to 40 in the south-east.
2. TRISTAN: N to NW over the south-west towards mid-period.
SYNOPTIC CHART 06:00Z
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High 1034 hPa 33s08w, High 1029 hPa 29s54e
Low 1008 hPa 36s31w, Low 976 hPa 55s26w, Low 950 hPa 62s51e
1. Cold Front: 25s33e 30s25w into 36s31w
2. Cold Front: 40s28w 45s25w 50s20w into 55s26w
3. Cold Front: 43s14e 45s22e 50s42e 55s55e into 62s51e
AREA FORECAST:
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ASCENSION (06S/15S, 00E/20W):
WIND : SE to E 10 to 20.
VIS : Good.
SEA STATE: 3.0 to 3.5m, subsiding during the second half of the period,
with SW swell.
ANGOLA (06S/15S, 00E/00N):
WIND : S to SE 10 to 20 but W to SW 05 to 10 in the east, spreading
to the north and north-west by end of the period.
VIS : Good.
SEA STATE: 3.0m over the extreme south-west in the first half of the
period, with SW swell.
ST HELENA (15S/30S, 00E/20W):
WIND : NE 10 to 15 in the south-west, otherwise SE to S 15 to 25.
VIS : Good.
SEA STATE: 3.0 to 4.0m in the first half of the period, but continuing in
the east and north-east, mainly SW swell.
TRADES (15S/30S, 00E/WEST COAST):
WIND : S to SE 15 to 25 but 30 to 40 in the south-east.
VIS : Good.
SEA STATE: 3.0 to 4.0m with SW swell, becoming 4.5 to 6.0m in the south-
east from mid-period with S to SE swell.
TRISTAN (30S/40S, 00E/20W):
WIND : E to SE 10 to 15 in the north and north-east, otherwise N to
NW 10 to 20 reaching 25 to 35 over the south-west towards mid-
period.
VIS : Good but moderate to poor in showers and thundershowers in the
west.
SEA STATE: 3.0 to 3.5m in the north-east at first with mainly SW swell,
becoming 3.0 to 4.0m in the extreme south-west by end of the
period, with mainly NW swell.
CAPE WEST (30S/40S, 00E/20E):
WIND : S to SW 15 to 25 in the south and south-east, otherwise SE 15
to 25 reaching 30 in the north-east by end of the period.
VIS : Good but moderate to poor in showers and rain over the south-
east in the first half of the period.
SEA STATE: 3.0 to 4.0m, reaching 4.5 to 5.0m in the north-east, spreading
to the south-east from mid-period while subsiding in the
south-west, mainly W to SW swell.
ENDS DE CAPE TOWN RADIO/ZSC+
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