AORE
WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII WEST OF 20E.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE 27TH OF DECEMBER 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.
FORECAST VALID FROM 271000 TO 281000 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: S to SW 35 in the south-west, spreading to the south and
central parts by mid-period.
SYNOPTIC CHART 06:00Z
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High 1024 hPa 33s21w, High 1025 hPa 34s55e
Low 1002 hPa 46s13w, Low 997 hPa 46s28e
1. Cold Front: 39s23w 40s14w into 46s13w 2. Cold Front: 32s00e 35s12e 40s19e into 46s28e
AREA FORECAST:
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ASCENSION (06S/15S, 00E/20W):
WIND : SE to E 10 to 20.
VIS : Good.
ANGOLA (06S/15S, 00E/00N):
WIND : S to SE 05 to 15, but W to SW 05 to 10 in the east.
VIS : Good, but moderate to poor in showers and thundershowers in
the east and north-east at times.
ST HELENA (15S/30S, 00E/20W):
WIND : E to SE 10 to 20, but variable 05 to 10 in the south-east,
where it will become NW 10 to 20 by mid-period, and SW 10 to
20 in the south.
VIS : Moderate in showers or light rain in places.
TRADES (15S/30S, 00E/WEST COAST):
WIND : S to SE 05 to 15 reaching 20 in the east and south-east, but
variable 05 to 10 in the south-west, where it will become NW
10 to 20 towards end of period.
VIS : Good, but moderate in showers and thundershowers in the north-
east.
TRISTAN (30S/40S, 00E/20W):
WIND : Variable 05 to 10 in the north-east, otherwise W to NW 15 to
25 reaching 30 in the south but S to SW 15 to 25 in the west,
reaching 30 to 35 in the south-west, spreading to the south
and central
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