IOR
WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII EAST OF 20e.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE 21ST OF DECEMBER 2024 AT 08:30 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 211000 TO 221000 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. MARION FORTIES EAST: NW to W 35 in the south-west, drifting to the
south-east by mid-period while moderating from
the west.
SYNOPTIC CHART 06:00Z
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High 1028 hPa 34s03w, High 1026 hPa 35s51e
Low 1013 hPa 43s14w, Low 969 hPa 56s22e, Low 972 hPa 55s26e, Low 963 hPa 60s13e
1. Cold Front: 49s16e 51s30e 54s28e 50s35e into 55s26e 2. Cold Front: 44s46e 52s49e 58s44e 61s33e into 60s13e
AREA FORECAST:
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CAPE EAST (32.5S/40S, 20E/50E):
WIND : NE 10 to 20 in the north, otherwise W to NW 10 to 20 reaching
25 in the south and south-east, but SE 10 to 20 in the
north-west, and W to SW 10 to 20 in the south-west, while
becoming cyclonic 10 to 20 in the north-west.
VIS : Good, but moderate in showers and rain in the north-west and
central parts.
SEA STATE: 3.0 to 4.0m in the south-west, where it will reach 4.5 to 5.0m
from mid-period, mainly SW swell.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : NE 15 to 25 in the west, where it will reach 30 to 35 from
mid-period, otherwise E to SE 10 to 20 reaching 25 to 30 in
the north, becoming SW 10 to 20 in the extreme south-west
from mid-period.
VIS : Moderate in showers and thundershowers, but good in the south.
SEA STATE: 3.0 to 4.0m in the eastern half at first, mainly SW
swell.
MOZAMBIQUE CHANNEL:
WIND : Variable 05 to 10 in the north, otherwise SE to E 10 to 20
reaching 25 in the south-east, but N to NE 10 to 20 in the
north-west and extreme south-west.
VIS : Moderate to poor in showers and thundershowers in
places in the north and south, otherwise good in the central
parts.
SEA STATE: 3.0m in the south-east, with SW swell.
MADAGASCAR EAST (10S/25S, EAST COAST/55E):
WIND : N to NE 10 to 20, reaching 25 to 30 in the south-west, but
E to SE 10 to 20 in the north.
VIS : Moderate in showers and thundershowers at times.
SEA STATE: 3.0m in the south until mid-period, mainly SW swell.
MARION F
