AORE
WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII WEST FO 20E.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE 19th OF AUGUST 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 192200 TO 202200 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 : N to NW 35 to 45 in the north-west towards the end of the
period.
2. CAPE WEST: Cyclonic 35 in places in the north-west at first, spreading
to the south-east by the end of the period.
SYNOPTIC CHART 12:00Z
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High 1024 hPa 33s50e
Low 984 hPa 45s15e
Cold Front: 30s05w 35s05e 40s18e into 45s15e.
AREA FORECAST:
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ASCENSION (06S/15S, 00E/20W):
WIND : E to SE 10 to 20.
VIS : Good.
ANGOLA (06S/15S, 00E/00N):
WIND : S to SE 10 to 20, but SW 05 to 10 in the extreme east.
VIS : Good.
ST HELENA (15S/30S, 00E/20W):
WIND : S to SE 10 to 20, but variable 05 to 10 in the south-west
where it will become N to NW 15 to 20 by mid-period
VIS : Good, but moderate in rain and showers in the south.
SEA STATE: 3.0 to 4.0m in the south-east at first, SW swell.
TRADES (15S/30S, 00E/WEST COAST):
WIND : S to SE 10 to 20, but NW 15 to 25 in the south, becoming SW 15
to 25 in the extreme south-west towards mid-period.
VIS : Good, but moderate in showers and rain in the extreme south-
west at first.
SEA STATE: 3.0 to 4.0m in the extreme south, SW swell.
TRISTAN (30S/40S, 00E/20W):
WIND : S to SW 10 to 20, but anti-cyclonic 05 to 10 in the north-west
at first, spreading to the north-east by the end of the
period, becoming N to NW 15 to 25 in the west by mid-period,
reaching 35 to 45 in the north-west towards the end of the
period.
VIS : Moderate to poor in showers and rain, but good over the
central parts.
SEA STATE: 3.0 to 4.0m, SW swell in the east at first as well as in the
extreme west by the end of the period, NW swell.
CAPE WEST (30S/40S, 00E/20E):
WIND : S to SW 10 to 20, reaching 30 in the extreme south-east at
first, but cyclonic 15 to 25 in the north-west at first,
reaching 35 in places, spreading to the south-east by the end
of the period.
VIS : Moderate to poor in showers and rain.
SEA STATE: 3.0 to 4.0m, but 5.0 to 6.0m in the south-east, reaching 7.0
to 8.0m in the extreme south-east until mid-period, SW swell.
ENDS
THIS IS CAPE TOWN RADIO
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