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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 09th OF JULY 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 091000 TO 101000 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: W to NW 35 to 45 in the extreme west, spreading to the
central parts by mid-period and to the south-east by the
end of the period.
4. MARION FORTIES EAST: N to NE 35 to 40 in places in the north at
times.
SYNOPTIC CHART 06:00Z
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Low 984 hPa 43s17e
Low 976 hPa 47s32e
Low 992 hPa 42s45e
Cold Front: 33s09e 38s22e 43s22e into 43s17e into 44s05e.
Cold Front: 27s45e 32s47e 37s47e 42s45 into 42s45e. cont. 47s46e 52e46e
into 47s32e.
AREA FORECAST:
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CAPE EAST (32.5S/40S, 20E/50E):
WIND : W to NW 15 to 25, reaching 35 to 45 in the extreme west,
spreading to the central parts by mid-period and to the south-
east by the end of the period.
VIS : Moderate to poor in showers and thundershowers.
SEA STATE: 4.0 to 5.0m in the extreme east, otherwise 6.0 to 7.0m,
reaching 8.0 to 8.5m in places, but 9.0m over the central
parts at first, W to SW swell, but N to NW in the east.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : Anti-cyclonic 05 to 15 in the north-west, spreading to the
north-central parts, otherwise W to NW 15 to 25 reaching 30 in
the south-west, becoming SW 10 to 20 in the extreme south-west
towards the end of the period.
VIS : Good, but moderate in showers and rain in extreme south-east.
SEA STATE: 3.0 to 4.0m in the west, reaching 5.0 to 6.0m in the south-
west but 7.0 to 8.0m in the extreme south-west at first, SW
swell.
MOZAMBIQUE CHANNEL:
WIND : S to SE 10 to 20, but N to NW 15 to 25 in the south-west.
VIS : Good.
MADAGASCAR EAST:
WIND : S to SE 10 to 20, but variable 05 to 15 in the extreme south.
VIS : Good.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : N to NE 20 to 30, reaching 35 to 40 in places in the north at
times.
VIS : Moderate in showers and rain in places.
SEA STATE: 3.0 to 4.0m, but 5.0 to 6.0m in the north, reaching 7.0 to
7.5m in the north-west, spreading to the north-east by the end
of the period, N to NW swell.
AREA 2:
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MARINE METEOROLOGICAL BULLETIN FROM METEO-FRANCE/LA REUNION ON AREA ACK (AMSTERDAM-CROZET-KERGUELEN)
DATE: 24/07/09 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 CRO.
PART 2: GENERAL SYNOPSYS, 24/07/09 at 0000 UTC :
– Cold front along 45E between 26S and 50S reaching Western WAM and Western CRO soon, moving Eastward quickly.
– High 1030 hPa near 40S/66E, expected 1034 hPa near 37S/74E at the end.
PART 3: FORECAST FOR 24 HOURS from 09/07/24 at 0600 UTC to 10/07/24 at 0600UTC :
WAM (30S/40S,50E/65E) :
Rain and frontal showers by Western in the daytime.
WIND: Northerly 4 to 6 locally 7 over Southern backing W to NW 4 to 6
behind.
SEA : Rough to very rough over South-Western. South-Easterly swell 2 to
4 m, then arrival of a W swell 4 to 5 m by Western at the end.
VIS : Poor to very poor in precipitations.
AMS (30S/40S,65E/80E) :
Few showers.
WIND: Anticlockwise 3 to 5 increasing N 5 to 7 over South-Western at the
end.
SEA : Moderate to rough. Southerly swell, 2 to 3 m.
VIS : Mainly good.
CRO (40S/50S,50E/65E) :
Rain and frontal showers by Western in the daytime and moving Eastward quickly.
WIND: Anticlockwise 3 to 5 over Eastern area at first, setting-up
Northerly 6 to 7 by Western part, increasing locally 8 in the
afternoon, and reaching all the area at end. Gusts.
SEA : Moderate over Eastern becoming rough to very rough by Western. N
swell 3 to 4 m by Western at the end.
VIS : Poor to very poor in precipitations.
KER (40S/50S,65E/80E) :
Few showers.
WIND: Anticlockwise 3 to 5, increasing SW 6 to 7 over South-Eastern.
Setting-up N 5 to 7 by Western at the end.
SEA : Moderate to rough, very rough over South-Eastern. Southerly swell 2
to 3 m.
VIS : Mainly good.
ENDS THIS IS CAPE TOWN RADIO
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