AOR-E
WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII, WEST OF 20E ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE 26th OF JULY 2024 AT 16:10 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 262200 TO 272200 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: Anti-cyclonic 10 to 20 in the east reaching 35 in the extreme
south-east at first.
2. CAPE WEST: NW 35 to 40 in the south and central, but W to SW 35 to 45
in the south-west spreading to the east by mid-period but
moderating to 10 to 20 in the west by the end of the
period.
SYNOPTIC CHART 12:00Z
High 1030 hPa 29s18w.
High 1028 hPa 47s52w
Low 976 hPa 49s06e
Cold Front 1: 39s31e 51s27e 62s21e 64s11e into 62s15e.
Cold Front 2: 37s06e 44s15e 51s07e into 46s08e.
AREA FORECAST:
ASCENSION (06S/15S, 00E/20W):
WIND : E to SE 10 to 20, but 25 in the north-west.
VIS : Good, but moderate in showers and rain the north-west in the
first half of the period.
SEA STATE: 3.0 to 4.0m, S to SW swell.
ANGOLA (06S/15S, 00E/00N):
WIND : S to SE 10 to 20, but SW 05 to 15 in the extreme east.
VIS : Good.
SEA STATE: 3.0m in the extreme south by mid-period, S to SW swell.
ST HELENA (15S/30S, 00E/20W):
WIND : E to SE 10 to 20, but variable 05 to 10 in the south-west.
VIS : Good, but moderate in showers in the north.
SEA STATE: 3.5 to 4.5m, SW swell.
TRADES (15S/30S, 00E/WEST COAST):
WIND : S to SE 15 to 25, but SW to W 10 to 15 in the south and
central.
VIS : Moderate in showers and rain in the extreme south, otherwise
good.
SEA STATE: 3.5 to 4.5m reaching 5.5 to 6.0m in the extreme south towards
mid-period, SW swell.
TRISTAN (30S/40S, 00E/20W):
WIND : Anticyclonic 10 to 20 in the east reaching 35 in the extreme
south-east at first, otherwise NW 10 to 20 but 25 to 30 south-
west.
VIS : Moderate in showers and rain but good in the north-west.
SEA STATE: 3.0 to 3.5m in the extreme west, otherwise 4.5 to 5.5m
reaching 6.5 to 7.5m in the south-central and south-east in
the first half of the period, but 3.0 to 3.5m in the extreme
west, SW s