WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII.
ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE
01ST OF JULY 2025 AT 17:00 UTC.
FOR SOUTH-EAST SECTOR OF METAREA. VII, PREPARED BY REUNION, SEE AREA 2
BELOW.
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.
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:
====================
1. MARION FORTIES EAST: W to NW 35 in west, south and south-east,
moderating in the west from the morning as well
as in the south and south-east from mid-period.
SYNOPTIC CHART 12:00Z
=====================
High 1024 hPa 26s20w, High 1036 hPa 40s50e
Low 986 hPa 49s25e, Low 979 hPa 55s30e
1. Cold Front: 31s11e 36s16e 39s19e 45s26e into 49s25e 55s30e
AREA FORECAST:
==============
ASCENSION (06S/15S, 00E/20W):
WIND : E to SE 10 to 20, reaching 25 at times in the south and south-
west.
VIS : Good, becoming moderate in light rain in places from the
morning, except in the north-east.
ANGOLA (06S/15S, 00E/00N):
WIND : S to SE 05 to 15, but SW 05 to 10 in the east.
VIS : Good.
ST HELENA (15S/30S, 00E/20W):
WIND : Anti-cyclonic 05 to 15 in the south, otherwise E to SE 10 to
20.
VIS : Good, but moderate in rain and showers in the southern parts.
SEA STATE: 3.0 to 4.0m in the south and eastern parts, subsiding in the
south towards mid-period, with S to SW swell.
TRADES (15S/30S, 00E/WEST COAST):
WIND : S to SE 05 to 15, reaching 20 in the north-east by the end of
the period.
VIS : Good, but moderate in showers and rain in the southern parts.
SEA STATE: 3.0 to 3.5m in the southern and south-west, with S to SW
swell.
TRISTAN (30S/40S, 00E/20W):
WIND : Anti-cyclonic 05 to 15 in the northern parts, otherwise W to
SW 10 to 20, reaching 25 to 30 in the south and south-eastern
parts at first, becoming N to NW 15 to 25 in the western parts
from the morning, reaching 30 from mid-period.
VIS : Good, but moderate in showers and rain in the south and south-
east, as well as western parts towards mid-period.
SEA STATE: 3.0 to 4.0m, except in the west, reaching 4.5 to 5.0m in the
south-east at first, with SW swell.
CAPE WEST (30S/40S, 00E/20E):
WIND : W to SW 05 to 15, reaching 20 to 25 in the south and south-
west at first, becoming SE 15 to 25 in the east towards
the end of the period.
VIS : Moderate in showers and rain in places, but poor in the east
and south-east.
SEA STATE: 3.0 to 4.0m, reaching 4.5m in the south-west at first, with S
to SW swell.
CAPE EAST (32.5S/40S, 20E/50E):
WIND : N to NW 15 to 25, reaching 30 in places in the central and
south until mid-period, but S to SE 05 to 15 in the west,
reaching 25 by the end of the period.
VIS : Good, but moderate to poor in rain and showers in the south-
west, becoming moderate showers and thundershowers in the
north-west by the end of the period.
SEA STATE: 3.0 to 4.0m, with S to SW swell.
DURBAN EAST (32.5S/25S, EAST COAST/55E):
WIND : E to NE 15 to 25, reaching 30 in places in the north and
extreme south-western parts.
VIS : Good, but moderate in light rain in places in the western
parts.
SEA STATE: 3.0 to 4.0m except in the north-west, reaching 4.5m in the
North-east at first, with S to SE swell.
MOZAMBIQUE CHANNEL:
WIND : E to NE 10 to 20 in the southern parts, reaching 25 to 30 in
the south-east, otherwise S to SE 05 to 15 reaching 20 to 25
in the northern and north-eastern parts at times.
VIS : Good, but moderate in showers and rain in places in the
northern parts at first.
SEA STATE: 3.0 to 4.0m in the southern parts, with SE swell.
MADAGASCAR EAST (10S/25S, EAST COAST/55E):
WIND : SE to E 15 to 25, reaching 30 in places in the central and
northern parts.
VIS : Good, but moderate in rain and showers in places in the
northern parts, spreading to the south towards the end of the
period.
SEA STATE: 3.0 to 4.0m, reaching 4.5 to 5.0m in the east and south-east,
with S to SE swell.
MARION FORTIES EAST (40S/50S, 35E/50E):
WIND : W to NW 15 to 25 reaching 30 to 35 in west, south and south-
east, moderating in the west from the morning as well as in
the south and south-east from mid-period.
VIS : Good, but moderate in showers and rain in the west and
southern parts, spreading to the east from mid-period while
clearing from the west.
SEA STATE: 3.0 to 4.0m, reaching 5.0 to 5.5m in the southern and south-
western parts, subsiding in the south-west from the
morning, with W to NW swell.
AREA 2:
=======
MARINE METEOROLOGICAL BULLETIN FROM METEO-FRANCE/LA REUNION ON AREA
ACK (AMSTERDAM-CROZET-KERGUELEN)
25/07/01 AT 1600UTC
AVERAGED WIND SPEED ON BEAUFORT SCALE. (WIND GUSTS MAY BE ABOUT 40%
STRONGER THAN THE AVERAGES GIVEN HERE).
PART 1: WARNING
STRONG GALE RUNNING OVER AMS AND KER.
PART 2: GENERAL SYNOPSIS, 25/07/01 AT 1200UTC
- DEEPENING LOW 1001 NEAR 39S/73E, SLOW-MOVING NORTHWARD.
- HIGH 1040 NEAR 40S/50E, STATIONARY.
PART 3: FORECAST FOR 24 HOURS FROM 25/07/01 AT 1800UTC TO 25/07/02
AT 1800UTC
WAM (30S/40S, 50E/65E)
SCATTERED SHOWERS.
WIND: S 4/6, 7 OVER FAR EASTERN.
SEA: ROUGH TO VERY ROUGH, HIGH OVER FAR EASTERN. SW SWELL 2 TO 4 M.
VISI: GOOD.
AMS (30S/40S, 65E/80E)
RAIN, SHOWERS AND SQUALLS.
WIND: CLOCKWISE 8/9.
SEA: VERY ROUGH TO HIGH, LOCALLY VERY HIGH OVER WESTERN. SW SWELL
INCREASING 5 TO 7 M.
VISI : POOR TO VERY POOR IN PRECIPITATIONS.
CRO (40S/50S, 50E/65E)
SNOW OR RAIN OVER FAR SOUTHWESTERN.
WIND: NW 4/6 LOCALLY 7 OVER FAR SOUTHERN, BUT S 4/6 OVER NORTHEASTERN.
SEA: ROUGH TO VERY ROUGH. SW SWELL 3 TO 5 M DECREASING 2 TO 4 M.
VISI: POOR TO VERY POOR IN PRECIPITATION.
KER (40S/50S, 65E/80E)
RAIN OVER NORTHEASTERN.
WIND: SOUTHERLY 8/9 OVER NORTHERN AT FIRST, DECREASING 4/6 AT END.
WESTERLY 4/6 OVER SOUTHERN.
SEA: ROUGH TO VERY ROUGH, LOCALLY HIGH OVER FAR NORTHERN. SW SWELL 3
TO 5 M AND CROSS SEA OVER NORTHERN.
VISI: POOR TO VERY POOR IN PRECIPITATION.