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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 16th OF JUNE 2024 AT 17:30 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 162200 TO 172200 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: W to NW 35 in the extreme north-west by the end of the
period.
2. DURBAN EAST: NE 35 in the south-west by the end of the period.
3. MARION FORTIES EAST: W to NW 35 to 40 towards mid-period spreading
towards the south-west by the end of the period.
SYNOPTIC CHART 06:00Z
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High 1026 hPa 37s32e.
Low 1012 hpa 28s14e Low 978 hPa 56s03e.
Cold Front: 42s08w 45s02w 50s05e into 56s03e.
AREA FORECAST:
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CAPE EAST (32.5S/40S, 20E/50E):
WIND : Anti-cyclonic 05 over the central parts spreading towards the
north-east by the end of the period, otherwise S to SW 15 to
25 but N to NE 15 to 25 in the west becoming W to NW 25 to 35
in the extreme north-west by the end of the period.
VIS : Good over the central parts, otherwise moderate in showers and
rain.
SEA STATE: 3.0 to 3.5m in places, SW swell.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : S to SW 15 to 25 in the extreme east, otherwise SE 10 to 20
but NE 15 to 25 in the south-west reaching 30 to 35 by the end
of the period.
VIS : Moderate in showers and rain in places.
MOZAMBIQUE CHANNEL:
WIND : S to SE 15 to 25, becoming N to NE 10 to 20 in the extreme
south-west.
VIS : Good over the central parts, otherwise moderate in showers.
MADAGASCAR EAST:
WIND : S to SE 15 to 25.
VIS : Good, but moderate in showers and thundershowers in the north.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : SW 15 to 25, but W to NW 15 to 25 in the west reaching 35 to
40 towards mid-period spreading towards the south-west by the
end of the period.
VIS : Good, but moderate in showers and rain in the south.
SEA STATE: 3.0 to 4.0m, reaching 4.5 to 4.5m in the south, 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: 24/06/16 AT 1700 UTC
AVERAGED WIND SPEED ON BEAUFORT SCALE. (WIND GUSTS MAY BE STRONGER THAN AVERAGES GIVEN HERE).
PART 1: WARNING :
– GALE FORCE 8 EXPECTED OVER SOUTHERN CRO, SOUTHERN AMS AND NORTH KER.
PART 2: GENERAL SYNOPSYS, 24/06/16 AT 1200 UTC :
– LOW 1007 NEAR 32S/57E, SLOWLY MOVING SOUTH-EASTWARD, WITH ASSOCIATED COLD FRONT (CF) AND WARM FRONT (WF) OVER NORTHERN WAM.
– LOW 983 NEAR 52S/58E, RATHER QUICKLY MOVING EASTWARD, WITH COLD FRONT (CG) OVER CRO AT FIRST.
– HIGH 1027 NEAR 32S/80E, SLOWLY MOVING EASTWARD.
– HIGH 1028 38S/32E WITH A RIDGE EXTENDING OVER WAM AT END.
PART 3: FORECAST FOR 24 HOURS FROM 16/06/24 AT 1800 UTC TO 17/06/24 AT 1800 UTC :
WAM (30S/40S,50E/65E) :
RAIN, SHOWERS AND THUNDERY SQUALLS.
WIND: CLOCKWISE 4 TO 6 LOCALLY 7, WITH SEVERE GUSTS OVER NORTHERN AREA SETTING S 4 TO 6 LOCALLY 7 BY WESTERN AREA AT FIRST.
SEA: MODERATE TO ROUGH. NE SWELL AT FIRST, 2 TO 4 M AHEAD THE LOW; ARRIVAL OF A SW SWELL BY SOUTH-WESTERN AREA, 2 TO 4 M OVERNIGHT.
VISI: VERY POOR IN PRECIPITATIONS.
AMS (30S/40S,65E/80E) :
FRONTAL RAIN AND SHOWERS ( CF) BY WESTERN AREA.
WIND: ANTICLOCKWISE 2 TO 4 OVER EASTERN, INCREASING GRADUALLY BY WESTERN AND BECOMING CLOCKWISE 4 TO 6 LOCALLY 7/8. SEVERE GUSTS OVER THE AREA.
SEA: MODERATE TO ROUGH TEMPORARILY VERY ROUGH OVER SOUTHERN AREA LATER.
VISI: VERY POOR IN PRECIPITATIONS.
CRO (40S/50S,50E/65E) :
FRONTAL RAIN AND SHOWERS WITH CG. SNOW SHOWERS OVER SOUTHERN.
WIND: NW 6 TO 7 WITH SEVERE GUSTS AHEAD THE FRONT BACKING W TO SW 6/7 LOCALLY 8. GUSTS.
SEA: ROUGH OVER NORTHERN, VERY ROUGH TO LOCALLY HIGH IN SOUTH. ARRIVAL OF A SW SWELL, 3 TO 5 M.
VISI: POOR OR VERY POOR IN PRECIPITATIONS.
KER (40S/50S,65E/80E) :
FRONTAL RAIN AND SHOWERS BY WEST SOON.
WIND: NW 6 OR 7 AHEAD THE FRONT BACKING S OR W 5/6 BEHIND REACHING LOCALLY 8 OVER FAR NORTHERN. GUSTS.
SEA: ROUGH TO VERY ROUGH. LONG S SWELL 3 TO 5 M OVER EASTERN ABATING.
VISI: POOR OR VERY POOR IN PRECIPITATIONS.
ENDS THIS IS CAPE TOWN RADIO
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