IOR
WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII EAST OF 20E.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE 20TH OF SEPTEMBER 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 201000 TO 211000 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: SE 35 in the north-east at first.
2. DURBAN EAST: S to SE 35 in the south at first.
3. MARION FORTIES EAST: NW 35 to 40 in the south-west towards end of
period.
SYNOPTIC CHART 06:00Z
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High 1040 hPa 40s12e
Low 1012 hPa 33s48e
AREA FORECAST:
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CAPE EAST (32.5S/40S, 20E/50E):
WIND : S to SW 10 to 15 in the south, otherwise SE 15 to 25 reaching
30 to 35 in the north-east at first but E to NE 15 to 25 in
the west.
VIS : Moderate to poor in showers and rain.
SEA STATE: 3.5 to 4.5m but 3.0 to 3.5m in the south-west, spreading to
the north-east by end of period, with SW swell.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : NE to N 15 to 20 in the north-east, otherwise S to SE 20 to 30
reaching 35 in the south at first but SW 05 to 15 over the
central parts. It will become E to NE 10 to 20 in the extreme
south-west towards end of period.
VIS : Moderate to poor in showers and rain in places.
SEA STATE: 3.0 to 4.0m but 4.0 to 6.0m over the central parts, with S to
SW swell.
MOZAMBIQUE CHANNEL (10S/25S, EAST COAST/WEST COAST):
WIND : SW 05 to 10 in the south-east during the first half of the
period, otherwise NE to N 10 to 20 but SE to E 10 to 20 in the
south-west and extreme north-east.
VIS : Good, but moderate in showers and rain in the north and south-
west.
SEA STATE: 3.0 to 4.0m in the south-west, with S well.
MADAGASCAR EAST (10S/25S, EAST COAST/55E):
WIND : N to NE 10 to 20 in the south, reaching 25 in the south-west,
otherwise SE to E 10 to 20 reaching 25 in the north-west.
VIS : Moderate in showers and rain in places.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : W to SW 15 to 25, reaching 30 in the south. It will become NW
15 to 25 in the west by mid-period, reaching 35 to 40 in the
south-west towards end of period.
VIS : Good, becoming moderate to poor in showers and rain in the
south-west towards end of period.
SEA STATE: 3.5 to 4.5m, reaching 5.0 to 6.0m in the south-west by end of
period, with SW to W swell.
AREA 2:
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MARINE METEOROLOGICAL BULLETIN FROM METEO-FRANCE/LA REUNION ON AREA ACK (AMSTERDAM-CROZET-KERGUELEN)
24/09/20 AT 0500UTC
AVERAGED WIND SPEED ON BEAUFORT SCALE. (WIND GUSTS MAY BE ABOUT 40% STRONGER THAN THE AVERAGES GIVEN HERE).
PART 1: WARNING
GALE EXPECTED OVER KER.
PART 2: GENERAL SYNOPSIS, 24/09/20 AT 0000UTC
LOW 1003 HPA AROUND 43S/62E, MOVING RAPIDLY SO
