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WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII: E OF 20E ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE 17th OF JULY 2024 AT 15:30 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 172200 TO 182200 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: N to NW 35 in the south west at first.
SYNOPTIC CHART 12:00Z
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Low 996 hPa 45s09e
Low 968 hPa 57s22e
Low 960 hPa 67s10e
Cold Front: 31s01e 35s10e 40s03e into 45s09e Cold Front: 31s16e 35s23e 40s25e 45s27e 50s28e 57s22e.
AREA FORECAST:
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CAPE EAST (32.5S/40S, 20E/50E):
WIND : SW 15 to 25 but N to NW 15 to 25 in the west reaching 30 to 35
in the south west at first.
VIS : Moderate in showers and rain in places but good in the north.
SEA STATE: 3.0 to 4.0m, SW swell.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : NE 10 to 15in the west, otherwise W to NW 10 to 20, but anti-
cyclone over the central parts. It will be SW 10 to 20 in the
south and south east.
VIS : Moderate in showers and rain in the east.
SEA STATE: 3.0m in the extreme south-east, SW swell.
MOZAMBIQUE CHANNEL:
WIND : Variable 05 to 10 in the extreme south, otherwise E to SE 10
to 20 but NE 10 to 15 in the south west.
VIS : Good.
MADAGASCAR EAST:
WIND : S to SE 20 to 30, but N to NE 10 to 20 in the central parts,
but NW 10 to 15 in the extreme south.
VIS : Moderate in showers in places.
SEA STATE: 3.0m in the extreme north, E to SE swell.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : SW 15 to 25 but
N to NW 10 to 20 in the west, becoming NE 5 to 25 in the
extreme west mid-period spreading to the central parts by the
end of the period.
VIS : Good in the east but moderate in the west and central parts.
SEA STATE: 3.0 to 4.0m in the south, NW swell.
AREA 2:
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MARINE METEOROLOGICAL BULLETIN FROM METEO-FRANCE/LA REUNION ON AREA ACK (AMSTERDAM-CROZET-KERGUELEN)
DATE: 24/07/17 AT 1700 UTC
AVERAGED WIND SPEED ON BEAUFORT SCALE. (WIND GUSTS MAY BE STRONGER THAN AVERAGES GIVEN HERE).
PART 1: WARNING :
– GALE FORCE 8 RUNNING OVER KER.
PART 2: GENERAL SYNOPSYS, 24/07/17 AT 1200 UTC :
– LOW 992 NEAR 46S/50E, EXPECTED 1001 NEAR 44S/65E AT END.
– ASSOCIATED COLD FRONT (CF) AXIS 27S/52E, 33S/60E, 40S/65E, 44S/66E, 50S67E MOVING EASTWARD WITH THE LOW.
– HIGH 1035 NEAR 36S/76E, EXPECTED 1032 NEAR 30S/86E AT END.
PART 3: FORECAST FOR 24 HOURS FROM 17/07/24 AT 1800 UTC TO 18/07/24 AT 1800 UTC :
WAM (30S/40S,50E/65E) :FRONTAL RAINS AND SHOWERS WITH CF. SHOWERS, LOCALLY THUNDERY SQUALLS BEHIND.
WIND: NORTHERLY 5 TO 7 FROM NORTH TO SOUTH AHEAD OF CF, GUSTS. BACKING WESTERLY 4 TO 6 FROM NORTH TO SOUTH BEHIND.
SEA : ROUGHTO VERY ROUGH. WESTERLY SWELL 3 TO 4 M AND NORTHERLY SWELL 3 TO 4 M OVER FAR EASTERN AT FIRST.
VIS : POOR TO VERY POOR I
