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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 15th OF JULY 2024 AT 16:00 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 152200 TO 162200 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: NW to W 35 to 45 on the central and east.
2. MARION FORTIES EAST: Cyclonic 35 to 40 in places in the north and
south.
SYNOPTIC CHART 12:00Z
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High 1024 hPa 28s22w.
Low 1007 hPa 64s05e
1. Cold Front: 35s45e 40s43e 43s39e into 43s36e.
2. Cold Front: 35s13e 43s11e 48s09e into 50s09e.
3. Cold Front: 43s13w 48s05w into 53s11w 51s08w 55s08w 60s05w into
60s09w.
AREA FORECAST:
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CAPE EAST (32.5S/40S, 20E/50E):
WIND : NW to W 20 to 30 but 35 to 45 on the central and east.
VIS : Moderate in showers and rain in places.
SEA STATE: 3.0 to 4.0m but 5.0 to 6.0m over the south-central and south-
east, cyclonic swell.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : N to NE 15 to 25 in the east, otherwise anti-cyclonic 15 to
25.
VIS : Good in the extreme east, but moderate in showers and rain.
SEA STATE: 3.5 to 4.5m in the south and central, SW swell.
MOZAMBIQUE CHANNEL:
WIND : Anti-cyclonic 05 to 10 in the central at first, otherwise E to
SE 10 to 20 but NE 10 to 15 in the south-west towards mid-
period.
VIS : Good, but moderate in rain in showers in the extreme south and
north.
MADAGASCAR EAST:
WIND : S to SE 20 to 30, but N to NE 10 to 20 in the south, but
variable 05 to 10 towards mid-period.
VIS : Moderate in showers in places, but good in the south.
SEA STATE: 3.0m in the north, SE swell.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : Cyclonic 15 to 25 reaching 35 to 40 in places in the north and
south.
VIS : Moderate in showers and rain but poor in the east at first,
becoming good in the extreme east towards the end of the
period.
SEA STATE: 3.0 to 4.0m, reaching 5.0 to 6.0m in places in the north and
south, cyclonic swell.
AREA 2:
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MARINE METEOROLOGICAL BULLETIN FROM METEO-FRANCE/LA REUNION ON AREA ACK (AMSTERDAM-CROZET-KERGUELEN)
DATE: 24/07/15 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 CRO and WAM.
PART 2: GENERAL SYNOPSYS, 24/07/15 at 1200 UTC :
– High 1035 near 43S/61E with a ridge extending toward northeastern.
– Deepening low 989 hPa near 41S/37E, with a cold front CF axis 32S/45E,
36S/46E, 43S/44E, 45S/37E.
PART 3: FORECAST FOR 24 HOURS from 15/07/24 at 1800 UTC to 16/07/24 at 1800 UTC :
WAM (30S/40S,50E/65E) :Frontal rain and showers under CF. Squalls.
WIND: Increasing N 5 to 7, locally 8 over southern area. Gusts.
SEA : moderate to rough, locally rough over southern area. Moderate W
swell 2,5 m at end by Western area.
VISI: poor in precipitation.
AMS (30S/40S,65E/80E) :Scattered showers.
WIND: anticlockwise 3 to 5.
SEA : rough to very rough. South swell 2 to 4 m.
VIS : Good.
CRO (40S/50S,50E/65E) :Frontal rain and showers under CF. Squalls.
WIND: Increasing gradually NE 6/7 locally 8 ahead CF.
SEA : moderate to rough at first, very rough in south-east, becoming
rough to very rough over area soon.
