IOR
WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII. EAST OF 20E.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE 13TH OF SEPTEMBER 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 132200 TO 142200 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. CAPE EAST: N to NE 35 to 40 over the central parts but W to SW 35 in
the south.
SYNOPTIC CHART 12:00Z
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High 1029 hPa 29s18w
High 1027 hPa 30s01e
High 1032 hPa 40s47e
Low 973 hPa 53s14w
Low 1010 hPa 38s29e
Cold Front: 34s18w 37s11w 46s03w 49s02w into 53s14w
AREA FORECAST:
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CAPE EAST (32.5S/40S, 20E/50E):
WIND : Variable 05 to 10 in the south-west, where it will become NW
15 to 25 towards end of period, otherwise N to NE 15 to 25,
reaching 30 to 40 over the central parts but W to SW 15 to 25
in the west, reaching 30 to 35 in the south.
VIS : Moderate to poor in showers and rain, except in the extreme
north-west.
SEA STATE: 3.0 to 4.0m over the central parts, reaching 4.5 to 5.5m in
the south, with SW swell.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : S to SE 10 to 20 in the north-east during mid-period,
otherwise E to NE 15 to 25 reaching 30 in the north, but SW 15
to 25 in the south-west, spreading to the north-west by mid-
period.
VIS : Good, but moderate in showers and rain in the south-west.
SEA STATE: 3.0m, reaching 3.5 to 4.0m over the central parts, with SW
swell.
MOZAMBIQUE CHANNEL:
WIND : NE 15 to 25 in the extreme south-west during the first half of
the period, otherwise SE 10 to 20 reaching 25 in the north-
west, becoming variable 05 to 10 over the central parts by
mid-period.
VIS : Good but moderate in showers and rain in the north.
SEA STATE: 3.0 to 3.5m in the south-east during the first half of the
period, with S to SW swell.
MADAGASCAR EAST:
WIND : E to NE 20 to 30 in the extreme south-west, otherwise SE 10 to
20 reaching 25 in the north-west.
VIS : Moderate in showers and rain in places.
SEA STATE: 3.0 to 3.5m in the south, with SW swell.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : E to NE 20 to 30 in the north-west, otherwise W to NW 15 to 25
reaching 30 in the south but SW 15 to 25 in the south-west,
spreading to the south-east by mid-period.
VIS : Moderate to poor in showers and rain in the west, spreading to
the east by mid-period.
SEA STATE: 3.0m reaching 3.5 to 4.0m in the south and east, with W to SW
swell.
