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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 19th OF JULY 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 192200 TO 202200 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. MARION FORTIES EAST: NE 35 in the south-east but W to NW 35 in
the south-west at the end of the period.
SYNOPTIC CHART 12:00Z
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High 1028 hPa 30s08e
High 1020 hPa 30s50e
Low 1014 hPa 32s37e
Low 984 hPa 50s25e
Cold Front: 34s15e 40s28e into 50s25e
AREA FORECAST:
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CAPE EAST (32.5S/40S, 20E/50E):
WIND : NW 15 to 25 in the extreme east, otherwise W to SW 15 to 25
reaching 30.
VIS : Moderate in showers and rain in places in the west spreading
east, otherwise good.
SEA STATE: 3.0 to 4.0m, reaching 4.5 to 5.5m in the west but 6.0
to 8.0 in the extreme east, SW swell.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : Anti-cyclonic 05 to 15 but NW 15 to 20 at times in the south.
VIS : Good but moderate in showers and rain at times in the south.
SEA STATE: 3.0m in the extreme south-west at the end of the period,
SW swell.
MOZAMBIQUE CHANNEL:
WIND : N to NE 05 to 15 in the south-west, otherwise E to SE 10
to 20 reaching 25 in the extreme north-east
VIS : Good but moderate in showers in the extreme north at times.
MADAGASCAR EAST:
WIND : S to SE 15 to 25 but NE 10 to 20 in the south.
VIS : Moderate in showers in places.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : NE 25 to 35 in the south-east, otherwise W to NW 15 to 25
reaching 30 reaching 35 in the south-west at the end of the
period.
VIS : Moderate to poor in showers and rain.
SEA STATE: 3.0 to 4.0m reaching 5.0 to 6.0 in the west but 7.0 to 7.5m in
the extreme west, SW to W swell.
AREA 2:
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MARINE METEOROLOGICAL BULLETIN FROM METEO-FRANCE/LA REUNION ON AREA ACK (AMSTERDAM-CROZET-KERGUELEN)
DATE: 24/07/19 at 1700 UTC
AVERAGED WIND SPEED ON BEAUFORT SCALE. (Wind gusts may be stronger than averages given here).
PART 1: WARNING : – Nil.
PART 2: GENERAL SYNOPSYS, 24/07/19 at 1200 UTC:
– Cold front leaving AMS area by northeastern area .
– Low 1002 hPa near 42S/76E moving east-north-eastward 15/20 kt.
– Cold front axis 31S/36E, 35S/41E, 42S/43E, 46S/42E, 47S/40E moving eastward 10/15 kt.
– High 1020 hPa near 53S/59E, moving north-eastward, expected over west KER at end.
PART 3: FORECAST FOR 24 HOURS from 19/07/24 at 1800 UTC to 20/07/24 at 1800 UTC:
WAM (30S/40S,50E/65E) : Frontal showers over south-west later.
WIND : anticlockwise 2 to 4 increasing NW 4 to 6 ahead the front over
southwestern area.
SEA : moderate to rough. W swell 2 to 3 m abating.
VISI : poor in precipitation.
AMS (30S/40S,65E/80E) : Frontal rain and showers. Scattered showers.
WIND : NW 6 to 7 over far north-eastern ahead the front backing W 4 to 5
behind and increasing S 4 to 6 over southern at end. Gusts.
SEA : rough. Westerly swell 2 to 3 m.
VISI : poor in precipitation.
CRO (40S/50S,50E/65E) : Showers.
WIND : anticlockwise 2 to 4 increasing N 4 to 6 by western area at first
and decreasing variable 2 to 4 over western area later.
SEA : moderate to rough. Slight Westerly swell.
VISI : poor in precipitation.
KER (40S/50S,65E/80E) : Rain and frontal showers over north-eastern.
WIND : clockwise 4 to 6 over northern area, variable 2 to 4 elsewhere,
increasing S 4 to 6 soon and decreasing anticlockwise 2 to 4 over
western later.
SEA : rough becoming moderate to rough. Slight westerly swell over
northern, S swell 2 to 3 m over south-eastern.
VISI : poor in precipitation.
ENDS THIS IS CAPE TOWN RADIO
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