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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 01st OF JULY 2024 AT 08:30 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 011000 TO 021000 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: W to SW 35 in the south.
SYNOPTIC CHART 06:00Z
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High 1036 hPa 43s32e High 1022 hPa 27s01w.
Low 986 hPa 45s03w Low 1018 hPa 34s22e Low 1020 hPa 32s15e.
1. Cold front: 28s14w 32s07w 35s03w 40s01e 45s00e 48s02w into 45s03w.
AREA FORECAST:
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CAPE EAST (32.5S/40S, 20E/50E):
WIND : SE to E 15 to 25 but E to NE 20 to 30 over the western and
central parts. It will become W to SW 10 to 15 in the extreme
west from mid-period.
VIS : Good but moderate to poor in showers and thundershowers over
the western and central parts.
SEA STATE: 3.0 to 4.0m, with S to SW swell but E to NE swell over the
central and western parts.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : S to SE 05 to 15 reaching 20 in places from mid-period but N
to NE 20 to 30 in the south-west.
VIS : Moderate in light showers but good in the west.
SEA STATE: 3.0m in the extreme south, with SW swell.
MOZAMBIQUE CHANNEL:
WIND : S to SE 05 to 15 reaching 20 in the east and north.
VIS : Moderate in light showers in the west, otherwise good.
MADAGASCAR EAST:
WIND : Variable 05 to 10 in the south for the first half of the
period, otherwise S to SE 10 to 20 reaching 25 in the north.
VIS : Moderate in light showers.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : Anti-cyclonic 05 to 10 in the north-west, otherwise W to SW 20
to 30 reaching 35 in the south.
VIS : Moderate to poor in showers and rain, but good in the west.
SEA STATE: 3.0 to 4.0m, except in the north-west, reaching 5.0 to 6.0m in
the south, SW swell.
AREA 2:
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MARINE METEOROLOGICAL BULLETIN FROM METEO-FRANCE/LA REUNION ON AREA ACK (AMSTERDAM-CROZET-KERGUELEN)
DATE: 24/07/01 AT 0500UTC
AVERAGED WIND SPEED ON BEAUFORT SCALE. (WIND GUSTS MAY BE ABOUT 40% STRONGER THAN THE AVERAGES GIVEN HERE.).
PART 1: WARNING :
– STORM FORCE 10 RUNNING OVER KER.
– GALE FORCE 8 OVER WAM, AMS AND CRO.
PART 2: GENERAL SYNOPSYS, 24/07/01 AT 0000 UTC :
– LOW 976 HPA DEEPENING NEAR 51S/71E, MOVING RAPIDLY EAST-SOUTHEASTWARD, EXPECTED 948 HPA NEAR 54S/88E AT 00UTC ON 02/07 .
ASSOCIATED AND CENTERED CF COLD FRONT: 38S/50E, 40S/54E, 45S/65E, 50S/70E 01/07 AT 00 UTC.
– HIGH 1031 HPA NEAR 33S/82E MOVING RAPIDLY EASTWARD.
PART 3: FORECAST FOR 24 HOURS FROM 01/07/24 AT 0600 UTC TO 02/07/24 AT 0600UTC :
WAM (30S/40S,50E/65E) :
FRONTAL SHOWERS WITH CF OVER SOUTHERN ZONE.
WIND: N TO NW 5 TO 7 AHEAD OF THE FRONT, BACKING S 5 TO 7 LOCALLY 8 BEHIN CF BY SW ZONE IN THE MORNING THEN BACKING S 4 TO 7 OVER THE WHOLE ZONE.
SEA : MODERATE TO ROUGH BECOMING ROUGH TO VERY ROUGH OVER SOUTHERN ZONE. SW SWELL OF 3 TO 4 M.
VISI : POOR UNDER PRECIPITATION.
AMS (30S/40S,65E/80E) :
RAIN AND FRONTAL SHOWERS WITH CF AND SNOW SHOWERS OVER FAR SOUTHERN AREA. GUSTS.
WIND : NORTH-WESTERLY 6 TO 7 LOCALLY 8 AHEAD OF CF BACKING SOUTH-WESTERLY 5/6 BEHIND.
SEA : ROUGH TO VERY ROUGH. SW SWELL 3 TO 5 M ABATING.
VISI : POOR UNDER PRECIPITATION.
CRO (40S/50S,50E/65E) :
FREQUENT SNOW SHOWERS.
WIND : SOUTH-WESTERLY 6 TO 8 EASING SOUTH-WESTERLY 4 TO 6 OVER SOUTH-EASTERLY AREA AT THE END OF THE PERIOD.
SEA : ROUGH TO VERY ROUGH. NORTH-WESTERLY SWELL 3 TO 5 M EASING OVER NORTH-EASTERN ZONE THEN SOUTH-WESTERLY SWELL 3 TO 5 M OVER SOUTH-EASTERN ZONE AT THE END OF THE PERIOD.
VISI : VERY POOR UNDER PRECIPITATION.
KER (40S/50S,65E/80E) :
SHOWERS AND SQUALLS WITH CF THEN FREQUENT SNOW SHOWERS BEHIND CF.
GUSTS.
WIND : NORTHWESTERLY 8 TO 10 AHEAD OF THE FRONT, BACKING SOUTHWESTERLY 6 TO 8 BEHIND FROM SOUTHWESTERLY AREA VEERING EASTERLY 5 TO 7 OVER THE WHOLE AREA OVERNIGHT.
SEA : ROUGH TO VERY ROUGH. NW SWELL 4 TO 6 M ABATING THEN W SWELL 4 M OVER WESTERN ZONE AT THE END OF THE PERIOD.
VISI : VERY POOR UNDER PRECIPITATION.
ENDS THIS IS CAPE TOWN RADIO
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