AOR-E
WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII WEST OF 20E.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE 18th OF JULY 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 182200 TO 192200 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. ST HELENA : Cyclonic 30 to 40 in the south-west towards end of
the period.
2. CAPE WEST: W to NW 35 to 45 in places in the south first half of the
period but SW 35 to 45 in the central south and spreading
east.
SYNOPTIC CHART 12:00Z
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Low 992 hPa 44s05e
Low 968 hPa 53s21e
Low 1012 hPa 30s31e
Cold Front: 34s07w 40s08e into 44s05e
Cold Front: 33s18e 35s20e 40s25e 45s28e 50s29e into 53s21e.
AREA FORECAST:
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ASCENSION (06S/15S, 00E/20W):
WIND : E to SE 10 to 15.
VIS : Good but moderate in the north.
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 : E to SE 10 to 20 but Variable 05 to 10 in the extreme south,
becoming Cyclonic 30 to 40 in the south-west towards end of
the period but NE 10 to 20 in the north-west.
VIS : Good, moderate showers and rain in the north becoming poor in
the south-west towards end of the period SEA STATE: 3.0m to 4.0m in the extreme south-east, SW swell.
TRADES (15S/30S, 00E/WEST COAST):
WIND : S to SE 10 to 20 reaching 25 in the north-east, but
SW 10 to 20 in the extreme south.
VIS : Good.
TRISTAN (30S/40S, 00E/20W):
WIND : SW 15 to 25 but Variable 10 in the north-west spreading east
and south.
VIS : Good, but moderate in showers and rain in the east and south.
SEA STATE: 3.0 to 4.0m, in the east reaching 5.0 to 6.0m in the south-
east, first half of the period SW swell.
CAPE WEST (30S/40S, 00E/20E):
WIND : W to NW 15 to 25 in the east reaching 30 to 45 in places in
the south first half of the period but SW 20 to 30 in the west
reaching 35 to 45 in the central south and spreading east. It
will become Anti-cyclonic 10 to 15 in the west towards end of
the period.
VIS : Moderate in showers and rain in places at times.
SEA STATE: 3.0 to 4.0m in the north , otherwise 4.5. to 6.5m in the
south, reaching 7.0 to 8.0m in the central south,
SW swell.
ENDS THIS IS CAPE TOWN RADIO
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