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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 13th OF JULY 2024 AT 18:00 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 132200 TO 142200 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: SE 25 to 35 in the north west second half of the
period.
SYNOPTIC CHART 17:00Z
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High 1024 hPa 25s01w.
Low 1012 hPa 40s15e
Low 1012 hPa 45s32e
Low 1016 hPa 43s33e
1. Cold Front: 30s16e 35s20e into 40s13e
AREA FORECAST:
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CAPE EAST (32.5S/40S, 20E/50E):
WIND : W to NW 15 to 25, reaching 30 to 40 in the west, but SW 20 to
30 in the north west spreading to the central parts.
VIS : Good in the extreme north and east, otherwise moderate in
showers and thundershowers.
SEA STATE: 3.0 to 4.0m, SW swell.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : NE 10 to 20 becoming NW 10 to 20 in the west, but SW 20 to 30
in the south west spreading to the central parts by the end of
the period.
VIS : Good, but moderate in the south west.
SEA STATE: 3.0 to 4.0m, SW swell.
MOZAMBIQUE CHANNEL:
WIND : SE 15 to 25, reaching 30 in the north-east, but N to NE 10
to 20 in the south east.
VIS : Good, but moderate in showers in the extreme north.
MADAGASCAR EAST:
WIND : S to SE 20 to 30, but NE 10 to 20 in the south.
VIS : Moderate in showers in places.
SEA STATE: 3.0 to 3.5m in the north, SE swell.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : SW 10 to 15 in the south west, otherwise E to NE 15 to 25
becoming SE 25 to 35 in the north west second half of the
period.
VIS : Good in the south east, otherwise moderate in showers and
rain.
SEA STATE: 3.0m in the north east, N to NE swell.
AREA 2:
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MARINE METEOROLOGICAL BULLETIN FROM METEO-FRANCE/LA REUNION ON AREA ACK (AMSTERDAM-CROZET-KERGUELEN)
DATE: 24/07/13 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, 24/07/13 AT 1200 UTC :
– WEAKENING HIGH 1028 NEAR 28S/63E.
– HIGH 1031 NEAR 51S/38E WITH A RIDGE EXTENDING TOWARD CRO.
– WAVING FRONT BETWEEN THESE TWO CELLS.
PART 3: FORECAST FOR 24 HOURS FROM 13/07/24 AT 1800 UTC TO 14/07/24 AT 1800 UTC :
WAM (30S/40S,50E/65E) :
FRONTAL RAINS AND SHOWERS OVER SOUTHERN BECOMING LESS FREQUENT.WIND :
WESTERLY 3 TO 5, LOCALLY 6 OVER FAR EASTERN, SETTING-UP E TO NE 3 TO
5 BY SOUTHERN LOCALLY 6 OVER SOUTH-WESTERN AND VARIABLE 2 TO 4 OVER
NORTHERN.SEA: MODERATE TO ROUGH FROM WEST TO EAST. WSW SWELL, 2 TO 4 M ABATING.
VIS : POOR IN PRECIPITATIONS.
AMS (30S/40S,65E/80E) :
FRONTAL RAINS AND SHOWERS MOVING EASTWARD.WIND : WESTERLY 5 TO 7 AHEAD OF THE FRONT BACKING S 4 TO 5 BEHIND.SEA: ROUGH TO VERY ROUGH IN NORTH, VERY ROUGH TO HIGH IN SOUTH AT FIRST. SOUTH-WESTERLY SWELL
3 TO 6 M FROM NORTH TO SOUTH ABATING 3 TO 4 M AT END.
VIS : POOR IN PRECIPITATIONS.
CRO (40S/50S,50E/65E) :
FEW SHOWERS OVER NORTHERN.WIND : ANTICLOCKWISE 3/5 LOCALLY 6 OVER SOUTH-EASTERN AND NORTH-WESTERN.SEA: ROUGH TO VERY ROUGH, BECOMING MODERATE TO ROUGH FROM WEST TO EAST SOON. WESTERLY SWELL 2 TO 3 M THEN S SWELL 2 M.
VIS : POOR IN PRECIPITATIONS.
KER (40S/50S,65E/80E) :
SCATTERED SHOWERS OVER NORTHERN.WIND : S TO SW 5 TO 7.SEA: VERY ROUGH TO HIGH, BECOMING ROUGH TO VERY ROUGH BY WESTERN LATER. WESTERLY SWELL 4 TO 6 M ABATING LATER.
VIS : POOR IN PRECIPITATIONS.
ENDS THIS IS CAPE TOWN RADIO
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