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WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII, EAST.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE 24th OF MAY 2024 AT 16:10 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 242200 TO 252200 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: N to NW 35 to 40 in the southwest spreading to
the southeast.
SYNOPTIC CHART 12:00Z
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High 1030 hPa 37s05e.
Low 990 hPa 53s05w
Cold front: 45s12w 50s01w into 53s05w
AREA FORECAST:
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CAPE EAST (32.5S/40S, 20E/50E):
WIND : Anti-cyclonic in the west, otherwise SE 15 to 25 but N to NW
15 to 25 in the east, and in the south west second half of the
period.
VIS : Moderate in showers and thundershowers in places.
SEA STATE: 3.0 to 3.5m in the south, with SW swell.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : Anti-cyclonic 05 to 10 in the south-east at first, otherwise E
to SE 10 to 20 but NW 10 to 20 in the south spreading to the
south east.
VIS : Moderate in showers and rain but good in the west.
MOZAMBIQUE CHANNEL:
WIND : E to SE 10 to 15 reaching 20 to 25 in the north but SW 10 to
20 in the east.
VIS : Good but moderate in isolated thundershowers in the north.
MADAGASCAR EAST:
WIND : E to SE 15 to 25 reaching 30 in the north but NE 20 to 20 in
the southwest.
VIS : Moderate in showers and rain.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : SE 10 in the north, otherwise N to NW 15 to 25 reaching 30 to
40 in the southwest spreading to the southeast.
VIS : Moderate to poor in showers and rain but good in the north
east.
SEA STATE: 3.0 to 4.0m reaching 4.5 to 5.5m in the south but 6.0 to 6.5
in the south east, with W to SW swell.
AREA 2:
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MARINE METEOROLOGICAL BULLETIN FROM METEO-FRANCE/LA REUNION ON AREA ACK
(AMSTERDAM-CROZET-KERGUELEN)
DATE: 24/05/24 AT 1700 UTC
AVERAGED WIND SPEED ON BEAUFORT SCALE. (WIND GUSTS MAY BE STRONGER THAN AVERAGES GIVEN HERE).
PART 1: WARNING:
– GALE FORCE 8 OVER SOUTH-EASTERN AMS, FAR SOUTHERN CRO AND KER.
PART 2: GENERAL SYNOPSYS, 24/05/24 AT 1200 UTC:
– WAVING FRONT CF AXIS 37S/44E, 38S/55E, 40S/68E, 43S/74E, 43S/82E ASSOCIATED A DEEPENING LOW OVER WAM, EXPECTED 1012 HPA NEAR 37S/56E AT END.
– CG FRONT OVER CRO AT FIRST.
PART 3: FORECAST FOR 24 HOURS FROM 24/05/24 AT 1800 UTC TO 25/05/24 AT 1800 UTC:
WAM (30S/40S, 50E/65E):
FRONTAL RAINS, SHOWERS AND SQUALLS.WIND : VARIABLE 2 TO 4, BECOMING SOON CLOCKWISE 5 OR 6 WITH SEVERE GUSTS, LOCALLY 7 OVER SOUTHERN.
SEA: ROUGH, LOCALLY VERY ROUGH OVER SOUTH-EASTERN, AND MODERATE OVER NORTH-WESTERN. LONG SW SWELL, 2 TO 3M, INCREASING 4 TO 5M OVER SOUTH-EASTERN.
VISI: POOR OR VERY POOR UNDER PRECIPITATION.
AMS (30S/40S, 65E/80E):
SHOWERS.
WIND : AT FIRST, W 4 TO 6 OVER NORTHERN, 6 TO 7 WITH SEVERE GUSTS OVER SOUTHERN, INCREASING 8 OVER SOUTH-EASTERN. THEN BECOMING GRADUALLY VARIABLE 2 TO 4 BY WESTERN.
SEA: ROUGH TO HIGH FROM NW TO SE AND DECREASING BY WESTERN. LONG SW SWELL, 3 TO 5M.
VISI : GOOD BUT MODERATE UNDER PRECIPITATION.
CRO (40S/50S, 50E/65E):
FRONTAL RAINS AND SHOWERS CG, SNOW OVER SOUTHERN.
WIND : ANTICLOCKWISE OVER FAR NORTHERN BUT W OR SW 4 TO 6 OVER NORTHERN, 6 OR 7 WITH SEVERE GUSTS OVER SOUTHERN, INCREASING 8 OVER FAR SOUTHERN.
SEA: ROUGH TO HIGH FROM N TO S. LONG SW SWELL, 3 TO 6M.
VISI : POOR TO VERY POOR UNDER PRECIPITATION.
KER (40S/50S, 65E/80E):
FRONTAL RAINS AND SHOWERS CF, SNOW OVER SOUTHERN.
WIND : W OR SW 7 OR 8 WITH SEVERE GUSTS.
SEA: VERY ROUGH TO HIGH. LONG SW SWELL, 3 TO 5M.
VISI: POOR TO VERY POOR UNDER PRECIPITATION.
ENDS DE CAPE TOWN RADIO/ZSC+
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