AOR-E
WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII WEST OF 20E.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE 20TH 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 201000 TO 211000 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 in the south-east.
SYNOPTIC CHART 06:00Z
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High 1029 hPa 35s05w, High 1023 hPa 36s41e
Low 970 hPa 56s01e, Low 970 hPa 59s12e, Low 972 hPa 48s66e
1. Cold Front: 36s18e 40s26e 45s31e 50s31e into 59s12e
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 NE to N 05 to 15 in the south-west.
VIS : Good, but moderate in showers in the west.
TRADES (15S/30S, 00E/WEST COAST):
WIND : S to SE 15 to 25, reaching 30 to 35 in the south-east.
VIS : Good, but moderate in showers in the south-west at first.
SEA STATE: 3.0 to 3.5m in the south-east, with S to SW swell.
TRISTAN (30S/40S, 00E/20W):
WIND : NE 10 to 20 in the central parts at first, otherwise N to NW
10 to 20 reaching 25 in the south-west by mid-period, drifting
to the south by end of period, but W to SW 10 to 20 in the
south-east and S to SE 10 to 20 in the north-east.
VIS : Good, but moderate to poor in showers and rain in the west and
south-west, spreading to the south towards end of period.
SEA STATE: 3.0 to 3.5m in the south-east, with SW swell.
CAPE WEST (30S/40S, 00E/20E):
WIND : W to SW 15 to 25 but S to SE 10 to 20 in the northern half,
reaching 25 to 30 in the north-east towards mid-period.
VIS : Good.
SEA STATE: 3.0 to 3.5m in the south, but in the north-east from mid-
period, with S to SW swell.
ENDS THIS IS CAPETOWNRADIO/ZSC+
NNNN
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