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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 08th OF JUNE 2024 AT 18:30 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 082200 TO 092200 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. TRISTAN : N to NW 35 in the west spreading south-eastwards
2. CAPE EAST : S to SW 35 to 45 in places in the east.
3. DURBAN EAST: N to NW 35 in the extreme south-east at first, otherwise
W to SW 35 to 40 in the south-east at first 4. MARION FORTIES EAST: S to SW 35 in the north-east at times until mid-
period but W to NW 35 in places in the west at
first.
SYNOPTIC CHART 12:00Z
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High 1032 hPa 32s33e.
AREA FORECAST:
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CAPE EAST (32.5S/40S, 20E/50E):
WIND : N to NW 15 to 25 in the extreme south-west, otherwise S to SW
15 to 25, reaching 30 to 40 in places in the east, but
anti-cyclonic 05 to 15 in the north-west.
VIS : Good, moderate to poor in showers and rain in the east and the
south.
SEA STATE: 3.0 to 4.0m, reaching 5.0 to 6.0m in the central parts at
first, spreading to the east by the end of the period, SW
swell.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : N to NW 15 to 25 in the extreme east reaching 30 to 35 in the
extreme south-east at first, otherwise W to SW 15 to
25, reaching 30 to 40 in the south-east at first, but S to SE
15 to 25 in the west. It will become NE 10 to 20 in extreme
south-west towards the end of the first half of the period.
VIS : Good, but moderate in showers and rain in the east.
SEA STATE: 3.0 to 4.0m, moderating to 2.5m towards the end of the period,
SW swell.
MOZAMBIQUE CHANNEL:
WIND : S to SE 10 to 20, reaching 25 to 30 in places in the south
becoming SW in the extreme east.
VIS : Good in the north-east, otherwise moderate in showers in the
south.
SEA STATE: 3.0 to 4.0m in the south spreading north, S to SW swell.
MADAGASCAR EAST:
WIND : S to SE to S 10 to 20, reaching 25 in the extreme north and
extreme south.
VIS : Moderate in showers and thundershowers in places.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : S to SW 15 to 25 in the east, reaching 30 to 35 in the north-
east at times until mid-period but W to NW 15 to 25 in the
west, reaching 35 in places at first, it will become SW 15 to
25 towards the end of the first half of the period.
VIS : Moderate to poor in showers and rain.
SEA STATE: 4.0 to 5.0m, reaching 5.5 to 6.5m in places in the south-west
towards end of the period, 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: 24/06/08 AT 1700 UTC
AVERAGED WIND SPEED ON BEAUFORT SCALE. (WIND GUSTS MAY BE STRONGER THAN AVERAGES GIVEN HERE).
PART 1: WARNING :
– LOCALLY STRONG GALE FORCE 9 OVER CRO AND KER.
– GALE FORCE 8 OVER WAM, AMS, CRO AND KER.
PART 2: GENERAL SYNOPSYS, 24/06/08 AT 1200 UTC :
– HIGH 1031 HPA NEAR 37S/77E, SLOWLY MOVING EASTWARD, EXPECTED 1029 HPA NEAR 36S/83E AT END.
– LOW 990 HPA NEAR 45S/56E DEEPENING AND MOVING SOUTH-EASTWARD.
ASSOCIATED COLD FRONT (CF) AXIS 30S/52E, 36S/56E, 40S/56E, 46S/55E, MOVING EASTWARD. ASSOCIATED WARM FRONT (WF) AXIS 46S/55E, 50S/63E, MOVING SOUTH-EASTWARD.
PART 3: FORECAST FOR 24 HOURS FROM 08/06/24 AT 1800 UTC TO 09/06/24 AT 1800 UTC :
WAM (30S/40S,50E/65E) :RAIN, SHOWERS AND THUNDERY SQUALLS WITH CF.
WIND: N 6 TO 7 WITH VIOLENT GUSTS, INCREASING 8 AHEAD OF CF, BACKING SW OR W
6 OR 7 WITH SEVERE GUSTS BEHIND. AND DECREASING AT END ANTICLOCKWISE 2
TO 4 OVER NORTH-WESTERN.
SEA : ROUGH TO VERY ROUGH, LOCALLY HIGH OVER SOUTHERN. NW SWELL, 3 TO 5M
AHEAD CF. ARRIVAL SOON BY WESTERN OF A LONG SW SWELL, 3 TO 5M.
VIS: POOR OR VERY POOR IN PRECIPITATIONS.
AMS (30S/40S,65E/80E) : RAIN, SHOWERS AND THUNDERY SQUALLS WITH CF, LATER OVER WESTERN.
WIND: AT FIRST, ANTICLOCKWISE 2 TO 4 OVER EASTERN, N 5 TO 6 OVER WESTERN.
THEN INCREASING BY WESTERN, N 6 TO 7 WITH VIOLENT GUSTS AHEAD CF,
LOCALLY 8 NEAR CF, BACKING AT END W 4 TO 6 WITH SEVERE GUSTS OVER
WESTERN.
SEA : MODERATE OR ROUGH, BECOMING VERY ROUGH OVER SOUTHERN. NW SWELL,
3 TO 5M OVER SOUTH-WESTERN.VISI: BECOMING LATER POOR OR VERY POOR IN
PRECIPITATIONS DUE TO CF.
CRO (40S/50S,50E/65E) :RAIN, SHOWERS AND THUNDERY SQUALLS WITH CF AND WF. SHOWERS (SNOWY IN SOUTH) BEHIND.
WIND: CLOCKWISE 6 TO 8 WITH VIOLENT GUSTS, LOCALLY 9 OVER EASTERN. THEN
SETTING-UP LATER SW OR W 6 TO 7 WITH SEVERE GUSTS BY WESTERN.
SEA : VERY ROUGH TO HIGH. NW SWELL, 3 TO 5M OVER EASTERN, THEN ARRIVAL BY
WESTERN OF A W SWELL, 3 TO 5M.
VIS : POOR OR VERY POOR IN PRECIPITATIONS.
KER (40S/50S,65E/80E) :
RAIN, SHOWERS AND THUNDERY SQUALLS WITH CF, LATER OVER WESTERN.WIND:
N 4 TO 6 FROM EAST TO WEST, INCREASING N 7 OR 8 WITH VIOLENT GUSTS AHEAD CF, BACKING AT END W 7 OR 8 OVER WESTERN LOCALLY 9 OVER SOUTH-WESTERN.
SEA: VERY ROUGH TO HIGH. W SWELL, 2 TO 4M FROM EAST TO WEST. THEN ARRIVAL LATER OF A NW SWELL, 3 TO 5M OVER WESTERN.VISI: POOR OR VERY POOR IN PRECIPITATIONS.
ENDS DE CAPETOWNRADIO/ZSC+
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