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WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII EAST OF 20 EAST.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE 18th 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 181000 TO 191000 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: NW to N 35 in the south-east.
2. MARION FORTIES EAST: N to NW 35 to 40 in the east. It will become
W to SW 35 to 40 in the south-west, moderating at the end of the
period.
SYNOPTIC CHART 06:00Z
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High 1024 hPa 27s20w High 1024 hPa 33s50e
Low 980 hPa 50s22e
Cold Front: 30s05e, 35s15e, 40s20e 45s25e into 50s22e
AREA FORECAST:
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CAPE EAST (32.5S/40S, 20E/50E):
WIND : NW to N 15 to 25 reaching 30 to 35 in the south-east, but W to
SW 15 to 25 in the west.
VIS : Moderate in showers and rain.
SEA STATE: 3.0 to 4.0m reaching 4.5 to 5.0m in the south, SW swell but NW
over the central parts.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : Variable 05 to 15 in the south-west, otherwise E to NE 15 to
25 but NW 10 to 20 in the extreme west.
VIS : Moderate in showers and rain in places.
MOZAMBIQUE CHANNEL:
WIND : S to SE 15 to 25 but variable 05 to 15 in the south.
VIS : Good but moderate in showers at times.
MADAGASCAR EAST:
WIND : S to SE 15 to 25 reaching 30 in the north but NE to E 10 to 20
in the south reaching 25 in the extreme north.
VIS : Moderate in showers and thundershowers at times.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : N to NW 20 to 30 reaching 35 to 40 in the east. It will become
W to SW 20 to 30 in the west from mid-period reaching 35 to 40
in the south-west, moderating at the end of the period.
VIS : Moderate to poor in showers and rain.
SEA STATE: 3.0 to 4.0m reaching 4.5 to 5.0m in the south, SW to W swell
but NW in the east.
AREA 2:
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MARINE METEOROLOGICAL BULLETIN FROM METEO-FRANCE/LA REUNION ON AREA ACK (AMSTERDAM-CROZET-KERGUELEN)
DATE: 24/06/18 at 0500UTC
AVERAGED WIND SPEED ON BEAUFORT SCALE. (Wind gusts may be about 40% stronger than the averages given here.).
PART 1: WARNING :
– Gale force 8 over AMS, CRO and KER.
PART 2: GENERAL SYNOPSYS, 24/06/18 at 0000 UTC :
– Low 995 hPa near 41S/74E with CF cold front, expected 989hPa near 44S/84E at 12 UTC the 18/06.
– High 1026 hPa 35S/46E expected 1030 hPa towards 33S/58E at the end.
-Front CG moving over CRO and KER.
PART 3: FORECAST FOR 24 HOURS from 18/06/24 at 0600 UTC to 19/06/24 at 0600UTC :
WAM (30S/40S,50E/65E): Few showers.
WIND: Becoming anticlockwise 2/4 from west zone but south-westerly 6/7 to
south-east in daytime and north-westerly 5/6 at end over south-
west.
SEA : Rough to very rough from north to south. SW swell 2 to 5m from
north to south.
VISI: good.
AMS (30S/40S,65E/80E): Rain, frontal showers and squalls over East zone CF.
WIND: becoming south-westerly 4/6 from west, but at first and over far
eastern, northerly 6 to 8 from north to south with strong gusts
ahead CF, backing south-westerly 4 to 7 from north to south behind.
SEA : rough to very rough from north to south. SW swell 3/5m but
Southerly swell 2/3m ahead the front CF and NW swell 2/4m behind.
VISI: Very poor under precipitation.
CRO (40S/50S,50E/65E): Rain and frontal showers CG.
WIND: Westerly to SW 4/6, reaching 7/8 over northeast quarter at first,
increasing NW 6/7 over west at end.
SEA : Very rough, becoming rough to very rough. Westerly swell 3/5m
diminishing 2m in west at the end.
VISI: Poor to very poor under precipitation.
KER (40S/50S,65E/80E): Rain, frontal showers and squalls over north-east CF area, then rain and showers CG. Loc snow over far southern.
WIND: Westerly to NW 5/6, locally 7, settling up SW 4/6 at the end,
reaching 7 in southeast, but clockwise 7/8 with strong gusts in
northeast at first with CF.
SEA : rough to very rough. SW swell of 3/5m, but clockwise swell 2/4m
over the north-east quarter at first.
VISI: Poor to very poor under precipitation.
ENDS THIS IS CAPE TOWN RADIO
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