IOR
WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII EAST OF 20E.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE 10th OF JUNE 2024 AT 17:50 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 102200 TO 112200 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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Nil.
SYNOPTIC CHART 12:00Z
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High 1032 hPa 32s43e.
Low 1008 hPa 37s02w.
Low 988 hPa 53s02w
Cold Front: 30s05w 35s02w into 37s02w cont. 40s02w 45s09e into 53s02w
AREA FORECAST:
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CAPE EAST (32.5S/40S, 20E/50E):
WIND : N to NE 15 to 25 in the west where it will reach 30 in places
from mid-period, while becoming NW 20 to 30 in the extreme
west, otherwise anti-cyclonic 05 to 15, reaching 20 in the
extreme south-east.
VIS : Moderate in showers and rain in places in the east, otherwise
good.
SEA STATE: 3.0 to 4.0m reaching 4.5m in the south-east during the first
half of the period, SW swell.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : NE 10 to 20 in the extreme south-west, otherwise SE 15 to 25,
reaching 30 in the north.
VIS : Moderate in showers and rain in the north, otherwise good.
SEA STATE: 3.0 to 3.5m except in the extreme west, SW swell.
MOZAMBIQUE CHANNEL:
WIND : S to SE 15 to 25 reaching 30 in the extreme south-east.
VIS : Moderate in showers and rain.
SEA STATE: 3.0 to 3.5m, S to SW swell.
MADAGASCAR EAST:
WIND : E to SE 15 to 25, reaching 30 in the extreme south and north-
west.
VIS : Moderate to poor in showers and thundershowers.
SEA STATE: 3.0 to 4.0m, S to SW swell.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : W to SW 10 to 15, reaching 20 to 30 in the east, becoming NW
10 to 20 in the west mid-period. It will moderate to 15 in the
north-east towards mid-period.
VIS : Good.
SEA STATE: 4.0 to 5.0m, reaching 6.0 to 7.0m in the east during the first
half of the period, subsiding to 3.0 to 3.5m in the west from
mid-period and spreading to the east by the end of the period,
SW swell.
AREA 2:
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MARINE METEOROLOGICAL BULLETIN FROM METEO-FRANCE/LA REUNION ON AREA ACK (AMSTERDAM-CROZET-KERGUELEN)
DATE: 24/06/10 at 1700 utc
AVERAGED WIND SPEED ON BEAUFORT SCALE. (Wind gusts may be stronger than averages given here).
PART 1: WARNING :
– Gale force 8 over CRO and KER.
PART 2: GENERAL SYNOPSYS, 24/06/10 at 1200 UTC :
– High 1034 hPa over WAM with ridge toward AMS.
– The almost-stationary cold front CF over northeast AMS decreasing.
– Deepening low 975 hPa near 53S/57E with associated cold front CG over CRO then KER on rapid west flow.
PART 3: FORECAST FOR 24 HOURS from 10/06/24 at 1800 UTC to 11/06/24 at 1800 UTC :
WAM (30S/40S,50E/65E) :
Scattered showers.
WIND: anticlockwise 3 to 5 setting up westerly 5/6 over southern part.
SEA: rough to very rough, long SW swell 3 to 4 m.
VISI: moderate in precipitations.
AMS (30S/40S,65E/80E) :
Frontal rain and showers over north-eastern part decreasing. Showers over southern part at end.
WIND: Anticlockwise 3 to 5 but westerly 6/7 soon.
SEA: moderate to rough, locally very rough over southern. SW swell 2 to 4m.
VISI: poor in precipitations.
CRO (40S/50S,50E/65E) :
Frontal rain and showers, squalls.
WIND: Westerly 7/8 then south-westerly 7/8 but decreasing 6/7 over north-western part. Gusts on squalls.
SEA: very rough to high over southern. SW swell 5 to 7 m over southern.
VISI: poor.
KER (40S/50S,65E/80E) :
Frontal rain and showers, squalls.
WIND: Westerly 7/8. Gusts on squalls.
SEA: high. W then SW swell 3 to 5 m.
VISI: poor.
ENDS DE CAPETOWNRADIO/ZSC+
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