SECURITE
AOR-E
WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII. WEST OF 20E.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE 12th OF AUGUST 2024 AT 16:30 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 122200 TO 132200 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:
1. ST HELENA : NW 35 in the south-west during the second half of the
period.
2. TRISTAN : NW 35 to 45 in the west from mid-period.
3. CAPE WEST : NW to W 35 to 40 but 45 in the south-east. It will
be S to SW 35 in the south-west
SYNOPTIC CHART 12:00Z
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High 35s00e 1020 hPa
Low 1000 hPa 40s05w
Cold Front: 23s09w 33s05W into 40s05w
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 : SE 10 to 20, but S to SW 10 to 15 in the extreme east.
VIS : Good.
ST HELENA (15S/30S, 00E/20W):
WIND : SE to S 10 to 20 N to NW 15 to 25 in the south-west reaching
35 during the second half of the period.
SEA STATE: 3.0 to 4.0m in the south, SW swell.
TRADES (15S/30S, 00E/WEST COAST):
WIND : SE to S 15 to 25 but NW 10 to 20 in the south-west.
VIS : Good.
SEA STATE: 3.0 to 3.5m in the south-west, SW swell.
TRISTAN (30S/40S, 00E/20W):
WIND : Anti-cyclonic 05 to 15 becoming NW 15 to 25 in the west from
mid-period reaching 35 to 45.
VIS : Moderate to poor in showers and rain.
SEA STATE: 3.0 to 4.0 reaching 5.0 to 6.0m in the west from mid-period, W
to NW swell.
CAPE WEST (30S/40S, 00E/20E):
WIND : SE to S 05 to 15 in the north-east at first, otherwise NW to W
15 to 25 reaching 35 to 40 but 45 in the south-east. It will
be S to SW 25 to 35 in the south-west
VIS : Moderate to poor in showers in the west and south, otherwise
Good, but very poor in fog in the extreme east in the first
half of the period.
SEA STATE: 3.5 to 4.5m reaching 5.5 to 6.5m in the south, W to SW swell.
ENDS THIS IS CAPETOWNRADIO
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