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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 07th OF JULY 2024 AT 17:00 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 072200 TO 082200 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: S to W to NW 35 to 45 in places, except in the extreme
east, but SW 35 to 45 in the extreme west, reaching 50 to
55 in places.
2. MARION FORTIES EAST: N to NE 35 in the north-west at first, spreading
to the north-east by the end of the period.
SYNOPTIC CHART 12:00Z
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High 1028 hPa 29s02w.
Low 988 hPa 42s22e
Low 1004 hPa 43s40e
Low 1008 hPa 32s53e
Cold Front: 25s20e 30s28e 35s28e 40s25e into 42s22e.
Cold Front: 24s49e 29s54e into 32s53e.
AREA FORECAST:
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CAPE EAST (32.5S/40S, 20E/50E):
WIND : Variable 05 to 10 in the extreme east at first, otherwise S to
W to NW 15 to 25, reaching 35 to 45 in places, but SW 35 to 45
in the extreme west, reaching 50 to 55 in places.
VIS : Moderate to poor in showers and thundershowers, but good in
the extreme east.
SEA STATE: 3.0 to 4.0m in the east, otherwise 5.0 to 6.0m, but 7.0 to
8.0m in places, becoming 9.0 to 10.0m in the extreme west,
spreading to the central parts where it will reach 11.0m in
places, W to SW swell.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : Variable 05 to 15 over the central parts at first, spreading
to the east by mid-period, otherwise W to NW 15 to 25, but SW
20 to 30 in the extreme south-west, reaching 35 in places.
VIS : Good, but moderate in showers and thundershowers in the south-
west.
SEA STATE: 3.0 to 4.0m in the west, reaching 5.0 to 6.0m in the south-
west but 7.0 to 7.5m in the extreme south-west, SW swell.
MOZAMBIQUE CHANNEL:
WIND : S to SE 10 to 20, becoming N to NW 15 to 25 in the south.
VIS : Good.
MADAGASCAR EAST:
WIND : S to SE 10 to 20 reaching 25 in the extreme north-east, but
SW 10 to 20 in the extreme south at first, becoming NE 05 to
10 in the extreme south-west by the end of the period.
VIS : Good.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : N to NE 20 to 30 in the south-east, reaching 35 in the north-
west at first, spreading to the north-east by the end of the
period.
VIS : Moderate in showers and rain in places.
SEA STATE: 3.0 to 4.0m, reaching 5.0 to 6.0m in the north-west by the end
of the period, but 7.0m in the extreme north-west, 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: 24/07/07 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, 24/07/07 AT 1200 UTC:
– LOW 1006 HPA NEAR 34S/53E WITH COLD FRONT ASSOCIATED, SLOWLY MOVING
NORTH-EASTWARD.- HIGH 1034 HPA NEAR 52S/60E, EXPECTED 1031 HPA NEAR 46S/64E AT END.
PART 3: FORECAST FOR 24 HOURS FROM 07/07/24 AT 1800 UTC TO 08/07/24 AT 1800 UTC:
WAM (30S/40S, 50E/65E):
FRONTAL RAINS, SHOWERS AND SQUALLS WITH CF, BUT FEW SHOWERS OVER SOUTH-EASTERN.
WIND: CLOCKWISE 4 TO 6 WITH SEVERE GUSTS OVER NORTHERN, E OR NE 4 TO 6
OVER SOUTHERN, THEN INCREASING LATER E 6 OR 7 OVER NORTH-EASTERN.
SEA : BECOMING SOON ROUGH TO VERY ROUGH. S SWELL, 2 TO 4 M OVER EASTERN
DECREASING; THEN SE SWELL, 2 TO 4 M.
VISI: POOR TO VERY POOR IN PRECIPITATIONS.
AMS (30S/40S, 65E/80E):
SHOWERS OVER EASTERN AT FIRST. SHOWERS AND SQUALLS OVER FAR NORTH-WESTERN.
WIND: S 4 TO 6 FROM WEST TO EAST, SETTING-UP LATER E 4 OR 5 OVER SOUTH-
WESTERN AND E 5 OR 6 OVER NORTH-WESTERN, LOCALLY 7 OVER FAR NORTH-
WESTERN.
SEA : ROUGH TO VERY ROUGH. LONG S SWELL, 3 TO 6 M DECREASING, 2 TO 4 M
AT END.
VISI: POOR TO VERY POOR IN PRECIPITATIONS.
CRO (40S/50S, 50E/65E):
SHOWERS OVER NORTH-EASTERN.
WIND: E OR NE 5 OR 6, LOCALLY 7 OVER WESTERN, AND DECREASING
ANTICLOCKWISE 2 TO 4 OVER EASTERN.
SEA : ROUGH TO VERY ROUGH, BUT MODERATE IN SOUTH-EAST. S SWELL 2 TO 4 M
DECREASING.
VISI: POOR IN PRECIPITATIONS.
KER (40S/50S, 65E/80E):
SHOWERS OVER EASTERN.
WIND: S 4 TO 6 WITH GUSTS FROM WEST TO EAST, LOCALLY 7 OVER FAR EASTERN,
AND BECOMING GRADUALLY ANTICLOCKWISE 2 TO 4 OVER WESTERN.
SEA : ROUGH TO VERY ROUGH, BECOMING AT END MODERATE OVER SOUTH-WESTERN.
SW SWELL 3 TO 5 M OVER NORTHERN DECREASING, BUT ARRIVAL AT END OF A
S SWELL OVER EASTERN, 2 TO 4 M.
VISI: POOR IN PRECIPITATIONS.
ENDS THIS IS CAPE TOWN RADIO
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