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WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII. EAST OF 20E.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE 30th OF JUNE 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 301000 TO 011000 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 NW 35 in the south east.
2. MARION FORTIES EAST: N to NW 35 to 40 in the east at first.
SYNOPTIC CHART 06:00Z
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High 1020 hPa 25s09w High 1024 hPa 45s15e.
Low 1008 hPa 33s12e.
AREA FORECAST:
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CAPE EAST (32.5S/40S, 20E/50E):
WIND : N to NW 20 to 30 reaching 35 in the south east, otherwise SE
15 to 25 but SW 10 to 15 in the north west at first.
VIS : Good, but moderate in showers in the east and central parts.
SEA STATE: 3.0 to 4.0m in the south, SE swell but SW in the south east.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : N to NE 10 to 20 reaching 25 in places, but anti-cyclonic
05 to 15 in the west. it will become SE 10 to 20 in the east
and central parts second half of the period.
VIS : Moderate in showers in places, but good in the west.
MOZAMBIQUE CHANNEL:
WIND : S to SE 10 to 20 but E to NE 05 to 10 in the south west.
VIS : Moderate in showers in places in the west, otherwise good.
MADAGASCAR EAST:
WIND : NE 10 to 20 in the extreme south-west spreading to the south-
east by mid-period, otherwise E to SE 15 to 25.
VIS : Moderate in showers.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : N to NW 30 to 40 in the east at first, otherwise SW 20 to 30
becoming SE 15 to 25 in the north second half of the period.
VIS : Moderate to poor in showers and rain, clearing from the north.
SEA STATE: 3.0 to 4.0m reaching 4.5m in the extreme east, SW swell.
AREA 2:
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MARINE METEOROLOGICAL BULLETIN FROM METEO-FRANCE/LA REUNION ON AREA ACK (AMSTERDAM-CROZET-KERGUELEN)
DATE: 24/06/30 at 0500UTC
AVERAGED WIND SPEED ON BEAUFORT SCALE. (Wind gusts may be about 40% stronger than the averages given here.).
PART 1: WARNING :
Storm expected over CRO and KER, Gale running over KER.
PART 2: GENERAL SYNOPSYS, 24/06/30 at 0000 UTC :
– Low 995 near 47S/45E, quickly moving eastward. Waving Front 47S/53E,
48S/50E, 48S/44E, 45S/40E, 41S/30E, 39S/20E.
– High 1027 over WAM, quickly moving eastward.
PART 3: FORECAST FOR 24 HOURS from 30/06/24 at 0600 UTC to 01/07/24 at 0600UTC :
WAM (30S/40S,50E/65E) :Rain over south-western later.
WIND: anticlockwise 3/5, increasing NW 6/7 in south.
SEA : rough, but very rough over eastern at first, becoming moderate in
north-west later. SW swell 3 to 5 m decreasing 2 to 3 m later.
VISI: becoming poor from south-west..
AMS (30S/40S,65E/80E) : Rare showers.
WIND: anticlockwise 3/5, increasing NW 6/7 in south later.
SEA : very rough to high, becoming rough from west at end. Long SW swell
5 to 7 m decreasing 3 to 5 m.
VISI: good.
CRO (40S/50S,50E/65E) : Rain, rain or snow showers.
WIND: increasing NW 8/9, locally 10 over north-eastern at end, backing SW
6/7.
SEA : very rough to high. S to SW swell 2 to 4 m increasing 4 to 6 m over
eastern at end. Cross sea.
VISI: very poor under precipitation.
KER (40S/50S,65E/80E) : Showers or squalls, rain or snow over south-western later.
WIND: SW 7/8, decreasing W 5/7 at first, then increasing NW 8/9 later,
locally 10 at end.
SEA : very rough to high, becoming locally very high at end. S swell 5 to
7 m decreasing 3 to 5 m then NW swell 4 to 6 m in south-west at
end. Cross sea.
VISI: poor to very poor under precipitation.
ENDS THIS IS CAPE TOWN RADIO
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