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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 12th OF MAY 2024 AT 17:30 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 122200 TO 132200 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: SW 35 in the south-east at first.
SYNOPTIC CHART 12:00Z
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Low 48s45e 990 hPa
Low 44s40e 996 hPa
Low 49s04w 986 hPa
High 38s23e 1024 hPa
Cold Front: 36s42e, 40s49e, 45s50e, into 48s45e (990 hPa) Cold Front: 39s38e, into 44s40e (996 hPa) Cold Front: 43s07w into 49s04w (986 hPa).
AREA FORECAST:
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CAPE EAST (32.5S/40S, 20E/50E):
WIND : Anti-cyclonic 10 to 20 in the west spreading the central
parts, reaching 30 to 35 in the south-east at first.
VIS : Good in the west, otherwise moderate in showers and rain in
places.
SEA STATE: 3.0 to 4.0m SW swell reaching 5.0 to 6.0m in places in the
south, but 7.0 to 7.5m in the extreme south spreading
eastward, subsiding from the west from midday.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : N to NE 10 to 20 in the north-east, otherwise N to NW 10
to 20, but E to SE 10 to 20 in the west.
VIS : Moderate in showers and rain in places.
SEA STATE: 3.0 to 4.0m SW swell in the south spreading northward.
MOZAMBIQUE CHANNEL:
WIND : S to SE 10 to 20, reaching 25 in the south from midday.
VIS : Good, but moderate in showers and thundershowers in places in
the north and extreme south, drifting northward.
MADAGASCAR EAST:
WIND : SE 15 to 25, but E to NE 10 to 20 in the south.
VIS : Good, but moderate to poor in showers and thundershowers in
the north.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : W to SW 20 to 30 reaching 40 to 45 in the north spreading
eastward and moderating towards midday, becoming S to SW 10 to
20 in the west.
VIS : Moderate in showers and rain, becoming good from midday.
SEA STATE: 3.5 to 4.5m W to SW swell reaching 5.5 to 6.5m, but 7.5 to
8.5m in the north-west spreading eastward.It will subside
from the south-west from midday.
AREA 2:
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MARINE METEOROLOGICAL BULLETIN FROM METEO-FRANCE/LA REUNION ON AREA ACK (AMSTERDAM-CROZET-KERGUELEN)
DATE: 24/05/12 at 0500UTC
AVERAGED WIND SPEED ON BEAUFORT SCALE. (Wind gusts may be about 40% stronger than the averages given here.).
PART 1: WARNING :Strong gale running over CRO, gale running and expected over KER.
PART 2: GENERAL SYNOPSYS, 24/05/12 at 0000 UTC :
– Low 982 near 49S/58E, moving very quickly eastward. Cold front CF 30S/40E, 37S/50E, 40S/54E, 44S/60E, 46S/65E, 50S/67E,
– Low 982 near 52S/36E, moving quickly north-eastward, 987 near 46S/56E the 13/05/24 at 00 UTC. Cold Front CG 38S/31E, 40S/35E, 42S/40E, 50S/42E, 52S/40E.
– High pressure over AMS, moving slowly eastward.
PART 3: FORECAST FOR 24 HOURS from 12/05/24 at 0600 UTC to 13/05/24 at 0600UTC :
WAM (30S/40S,50E/65E) :Rain (CF).
WIND: Westerly 4/6 in north and 6/7 in south.
SEA: moderate to rough in north, rough to very rough in south. SW
swell 2 to 3 m.
VIS: poor in precipitations.
AMS (30S/40S,65E/80E) : Scattered showers.
WIND: anticlockwise 2/4 in north, NW 4/6 in south increasing 6/7
soon.
SEA:Moderate in north, rough to very rough in south. SW swell 2 to
3m.
VIS: Good.
CRO (40S/50S,50E/65E) :Rain (CF) over north-eastern at first, (CG) over
western later.
WIND:clockwise 8/9 in south-east at first with violent gusts, becoming
temporarily variable 2/3, then increasing North-Westerly 6/7
later.
SEA: rough to very rough, locally high over south-eastern at first. W
swell 2 to 4 m, increasing 4 to 6 m over eastern.
VIS: poor in precipitations.
KER (40S/50S,65E/80E) : Rain (CF).
WIND:NW 7/8 with severe gusts, becoming temporarily variable 2/3, then
increasing NW 7/8 over north-western at end.
SEA:Very rough to high. W to SW swell 3 to 5 m increasing 4 to 6 m
later.
VIS: poor in precipitation.
ENDS DE CAPE TOWN RADIO/ZSC+
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