AOR-E
WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII. WEST OF 20E.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE 25th OF JULY 2024 AT 17:00 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 252200 TO 262200 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 40 in the south-east at first, otherwise SW
35 in the extreme south-central parts spreading towards the south-east
by mid-period.
2. CAPE WEST: W to SW 35 in the extreme south-east at first, but NW 35 to
40 in the south-west spreading towards the south-east by the end of
the period.
SYNOPTIC CHART 12:00Z
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High 1024 hPa 50s42e.
Low 1010 hPa 37s40e Low 976 hPa 49s06e
Cold Front: 30s04e 35s10e 40s12e 45s13e into 49s06e.
AREA FORECAST:
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ASCENSION (06S/15S, 00E/20W):
WIND : E to SE 10 to 20.
VIS : Good.
SEA STATE: 3.0m in the south-west, S to SW swell.
ANGOLA (06S/15S, 00E/00N):
WIND : S to SE 10 to 20, but SW 05 in the extreme east.
VIS : Good.
ST HELENA (15S/30S, 00E/20W):
WIND : E to SE 10 to 20, but variable 05 in the south-west.
VIS : Good, but moderate in showers in the north.
SEA STATE: 3.0 to 4.0m in the south, spreading towards the north by the
end of the period, SW swell.
TRADES (15S/30S, 00E/WEST COAST):
WIND : S to SE 10 to 20, but SW 10 to 15 in the south-west.
VIS : Good, but poor in fog patches in the extreme east at first.
SEA STATE: 3.0 to 3.5m in the south-west, SW swell.
TRISTAN (30S/40S, 00E/20W):
WIND : N to NW 15 to 25 in the east reaching 35 to 40 in the south-
east at first, otherwise SW 15 to 25 reaching 35 in the
extreme south-central parts spreading towards the south-east
by mid-period. It will become N to NE 10 to 20 in the extreme
west toward the end of the period.
VIS : Good, but moderate in showers and rain in the extreme
south spreading towards the central parts by mid-period.
SEA STATE: 4.0 to 5.0m reaching 6.0 to 7.0m in the south-east, subsiding
to 3.0 to 3.5m in the extreme west by mid-period, SW swell.
CAPE WEST (30S/40S, 00E/20E):
WIND : W to SW 15 to 25 reaching 35 in the extreme south-east at
first, but NW 15 to 25 in the west reaching 35 to 40 in the
south-west spreading towards the south-east by the end of the
period.
VIS : Good, but moderate in showers and rain in the south.
SEA STATE: 3.5 to 4.5m in places, but 5.0 to 6.0m in the south reaching
7.5 to 8.5m in the south-west, SW swell.
ENDS DE CAPE TOWN RADIO/ZSC+
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