AOR-E
WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII. WEST OF 20E.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE 19th OF MAY 2024 AT 08:30 UTC.
FOR SOUTH-EAST SECTOR OF METAREA. VII, PREPARED BY REUNION, SEE AREA 2 BELOW.
NOTE: WX OBSERVATIONS.
COULD ALL VESSELS EXPERIENCING UNEXPECTED, SEVERE WX/SEA STATE PLEASE MAKE EVERY EFFORT TO REPORT THIS TO SAWS VIA CAPE TOWN RADIO.
AREA 1:
FORECAST VALID FROM 191000 TO 201000 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. TRISTAN: W to NW 35 to 40 in the west and central north but S to SW 35
to 40 in the south-west towards mid-period and spreading to
the south-east towards the end of the period.
SYNOPTIC CHART 06:00Z
High 1028 hPa 40s45e
High 1020 hPa 25s05w
Low 996 hPa 42s04e
1. Cold front: 36s06w 41s01e into 41s04e
AREA FORECAST:
ASCENSION (06S/15S, 00E/20W):
WIND : S to SE 10 to 20.
VIS : Good.
SEA STATE: 3.0m in the south-west, SW swell.
ANGOLA (06S/15S, 00E/00N):
WIND : S to SE 10 to 15, but SW 05 to 10 in the extreme east.
VIS : Good.
ST HELENA (15S/30S, 00E/20W):
WIND : Anti-cyclonic 05 to 10 over the central parts, otherwise E to
SE 10 to 20, but W to NW 15 to 25 reaching 30 in the south,
becoming SW 15 to 25 in the south-west from mid-period.
VIS : Good, but moderate in showers and rain in places in the south-
west.
SEA STATE: 3.0 to 4.0m, SW swell.
TRADES (15S/30S, 00E/WEST COAST):
WIND : N to NW 10 to 20 in the south-west otherwise S to SE
10 to 20.
VIS : Good.
SEA STATE: 3.0 to 3.5m in the south-west, SW swell.
TRISTAN (30S/40SE, 00E/20W):
WIND : N 10 to 20 in the south-east during the first half of the
period, otherwise W to NW 15 to 25, reaching 30 to 40 in the
west and central north, becoming S to SW 30 to 40 in the
south-west towards mid-period and spreading to the south-east
towards the end of the period.
VIS : Moderate in showers and rain.
SEA STATE: 4.5 to 5.5m reaching 6.0 to 7.0m in the south-east at first
and in the central parts towards the end of the period, SW
swell.
CAPE WEST (30S/40S, 00E/20E):
WIND : S to SW 05 to 10 in the extreme north-east, otherwise W to NW
15 to 25 reaching 30 to 40 in the south and in the north-west
from mid-period.
VIS : Good, but moderate in showers and rain in the south.
SEA STATE: 3.0 to 4.0m reaching 4.5 to 5.5m but 6.0 to 7.0m in the south-
west spreading to the south-east towards mid-period, SW swell.
ENDS DE CAPE TOWN RADIO/ZSC+
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