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WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII WEST OF 20E.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE 26TH OF SEPTEMBER 2024 AT 08:30 UTC.
NOTE: WX OBSERVATIONS.
COULD ALL VESSELS EXPERIENCING UNEXPECTED, SEVERE WX/SEA STATE PLEASE MAKE EVERY EFFORT TO REPORT THIS TO SAWS VIA CAPE TOWN RADIO.
COULD ALL VESSELS EXPERIENCING UNEXPECTED, SEVERE WX/SEA STATE PLEASE MAKE EVERY EFFORT TO REPORT THIS TO SAWS VIA CAPE TOWN RADIO.
AREA 1:
FORECAST VALID FROM 261000 TO 271000 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:
1. CAPE EAST: W to SW 35 to 40 in the north-west.
2. DURBAN EAST: S to SW 35 to 40 in the extreme south-west, spreading to
the south and north-west by mid-period, while moderating
from the south-west.
3. MARION FORTIES EAST: NW 35 to 40 in the south-east at first.
SYNOPTIC CHART 06:00Z
High 1028 hPa 31s11w, High 1033 hPa 34s73e
Low 1009 hPa 30s32e
AREA FORECAST:
CAPE EAST (32.5S/40S, 20E/50E):
WIND : NW 15 to 25 in the south-east, otherwise W to SW 15 to 25
reaching 30 to 40 in the north-west but E to SE 10 to 20 over
the central parts, spreading to the east by end of period.
VIS : Moderate to poor in showers and rain in places, but in the
south-west towards end of period.
SEA STATE: 3.0 to 3.5m, reaching 4.0 to 4.5m in the south and north-west,
with SW swell.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : Variable 05 to 10 over the central parts, otherwise N to NE 15
to 25 reaching 30 in the north and west but S to SW 30 to 40
in the extreme south-west, spreading to the south and north-
west by mid-period, while moderating from the south-west.
VIS : Good but moderate to poor in showers and rain in the south.
SEA STATE: 3.5 to 4.5m in the south-west, spreading to the south and west
by mid-period, with S to SW swell.
MOZAMBIQUE CHANNEL:
WIND : NW 05 to 15 in the south-east, otherwise N to NE 05 to 15 but
SE to E 10 to 20 in the north.
VIS : Good but moderate in showers and rain in the north.
MADAGASCAR EAST (10S/25S, EAST COAST/55E):
WIND : NE 15 to 25 in the south, otherwise SE to E 10 to 20 reaching
25 in the north-west.
VIS : Moderate to poor in showers and rain, except in the south-
west.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : NW 30 to 40 in the south-east at first, otherwise W to SW 15
to 25 reaching 30 in the south.
VIS : Good but moderate to poor in rain and showers in the north-
east but in the south-west with possible snow-showers towards
end of period.
SEA STATE: 3.5 to 4.5m, reaching 5.0 to 7.0m in the south during the
first half of the period, with SW swell.
AREA 2:
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MARINE METEOROLOGICAL BULLETIN FROM METEO-FRANCE/LA REUNION ON AREA ACK (AMSTERDAM-CROZET-KERGUELEN)
24/09/26 AT 0500UTC
AVERAGED WIND SPEED ON BEAUFORT SCALE. (WIND GUSTS MAY BE ABOUT 40% STRONGER THAN THE AVERAGES GIVEN HERE).
PART 1: WARNING
GALE FORCE 8 RUNNING OVER CRO AND KER.
PART 2: GENERAL SYNOPSIS, 24/09/26 AT 0000UTC
HIGH 1032 NEAR 34S/72E, SLOWLY MOVING EASTWAR
WAVING FRONT OVER CRO AND KER, MOVING EASTWARD.
PART 3: FORECAST FOR 24 HOURS FROM 24/09/26 AT 0600UTC TO 24/09/27 AT 0600UTC
WAM (30S/40S, 50E/65E)
SHOWERS AND SQUALLS BY NORTHWEST AREA.
WIND: ANTICLOCKWISE 3 TO 5 SETTING UP NORTHERLY 6 OVER WESTERN LATER.
GUSTS ON SQUALLS.
SEA : MODERATE TO ROUGH, BUT VERY ROUGH OVER SOUTHERN AREA. SW SWELL
2 TO 4 M FROM NORTH TO SOUTH.
VIS : GOOD, BUT POOR OVER WESTERN AREA.
AMS (30S/40S, 65E/80E)
FEW SHOWERS.
WIND: ANTICLOCKWISE 3 TO 5.
SEA : MODERATE TO ROUGH. SW SWELL 2 TO 3 M.
VIS : GOOD.
CRO (40S/50S, 50E/65E)
FRONTAL RAIN AND SHOWERS WITH WAVING FRONT. SQUALLS. SNOW OVER FAR SOUTHERN.
WIND: WESTERLY 6/7 LOCALLY 8 IN VICINITY OF FRONT AND OVER FAR SOUTHERN
AREA. SEVERE GUSTS.
SEA : ROUGH TO VERY ROUGH FROM NORTH TO SOUTH LOCALLY HIGH OVER FAR
SOUTHERN AREA. SW SWELL 3 TO 5 M.
VIS : POOR IN PRECIPITATIONS.
KER (40S/50S, 65E/80E)
RAIN AND FRONTAL SHOWERS WITH WAVING FRONT. SNOW SHOWERS IN THE FAR SOUTHERN.
WIND: WESTERLY 6/7 LOCALLY 8 IN VICINITY OF FRONT. STRONG GUSTS.
SEA : ROUGH TO VERY ROUGH. W TO SW SWELL 4 TO 5 M.
VIS : POOR WITH PRECIPITATION.
ENDS DE CAPE TOWN RADIO/ZSC
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