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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 16:10 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 012200 TO 022200 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 for the first half of
the period.
SYNOPTIC CHART 12:00Z
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High 1036 hPa 42s33e High 1022 hPa 26s01w.
Low 980 hPa 48s01w Low 1018 hPa 35s23e.
1. Cold front: 29s12w 33s05w 35s02w 40s03e 45s04e 50s01e into 48s01w.
AREA FORECAST:
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CAPE EAST (32.5S/40S, 20E/50E):
WIND : SW 15 to 25 in the extreme south-east, otherwise E to NE 15 to
25 reaching 30 over the central parts but W to SW 10 to 20 in
the west where it will become NW 15 to 25 from mid-period.
VIS : Good in the east, otherwise moderate to poor in showers and
thundershowers.
SEA STATE: 3.0 to 3.5m with 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 : 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 for the first half of
the period, otherwise W to SW 20 to 30 reaching 35 in the
south for the first half of the period. It will become N to NW
15 to 25 in the west from mid-period.
VIS : Moderate in showers in the south at first, otherwise good. It
will become moderate in showers and rain in the extreme west
at the end of the period.
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 1700 UTC
AVERAGED WIND SPEED ON BEAUFORT SCALE. (WIND GUSTS MAY BE STRONGER THAN AVERAGES GIVEN HERE).
PART 1: WARNING:
– GALE FORCE 8 OVER WAM, AMS, CRO AND KER.
PART 2: GENERAL SYNOPSYS, 24/07/01 AT 1200 UTC:
– LOW 953 HPA DEEPENING NEAR 52S/80E, MOVING RAPIDLY EAST-SOUTHEASTWARD WITH ASSOCIATED AND CENTERED CF COLD FRONT:
37S/63E, 44S/76E, 46S/80E.
– HIGH 1035 HPA NEAR 41S/34E MOVING RAPIDLY EASTWARD.
PART 3: FORECAST FOR 24 HOURS FROM 01/07/24 AT 1800 UTC TO 02/07/24 AT 1800 UTC:
WAM (30S/40S, 50E/65E):
FRONTAL SHOWERS WITH CF OVER EASTERN AREA AT BEGINNING.
WIND: SW 5 TO 7 LOCALLY 8 OVER SOUTH-EASTERN AREA.
SEA : MODERATE TO ROUGH. S SWELL 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 5/7 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 : SW 5 TO 7 LOCALLY 8.
SEA : ROUGH TO VERY ROUGH. SW SWELL 3 TO 5 M.
VISI : VERY POOR UNDER PRECIPITATION.
KER (40S/50S, 65E/80E):
SHOWERS AND RAIN WITH CF THEN FREQUENT SNOW SHOWERS BEHIND CF.
GUSTS.
WIND : BACKING SOUTHWESTERLY 6 TO 8 BEHIND CF.
SEA : ROUGH TO VERY ROUGH. W SWELL 4 M.
VISI : VERY POOR UNDER PRECIPITATION.
ENDS THIS IS CAPE TOWN RADIO
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