FQZA31 FAPR 181230 WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII. ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE 18TH OF SEPTEMBER 2025 AT 13:30 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: ======= FORECAST VALID FROM 182200 to 192200 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: S to SW 35 in the central parts from mid-period that will spread to the south-east by the end of the period. SYNOPTIC CHART 12:00Z ===================== High 1024 hPa 45s13e High 1022 hPa 29s48e Low 1016 hPa 38s04e, Low 951 hPa 55s63e 1. Cold Front: 39s36e 40s48e 45s57e 51s65e into 55s63e AREA FORECAST: ============== ASCENSION (06S/15S, 00E/20W): WIND : SE to E 10 to 20. VIS : Good. ANGOLA (06S/15S, 00E/00N): WIND : W to SW 05 to 10 in the east, otherwise S to SE 05 to 15. VIS : Good. ST HELENA (15S/30S, 00E/20W): WIND : Variable 05 to 10 in the central-eastern parts, otherwise S to SE 05 to 15, reaching 20 in places in the west, but NE 15 in the south-east until mid-period becoming SW to S 05 to 15 in the south-west spreading eastwards by the end of the period. VIS : Good, but moderate in showers and rain in the north-west, central parts and south-east until mid-period. TRADES (15S/30S, 00E/WEST COAST): WIND : Variable 05 to 10 in the central-west but NW 05 to 15 in the south-west, otherwise S to SE 10 to 20, reaching 25 in the south-east becoming SW 05 to 15 in the south-west from mid- period. VIS : Good, becoming moderate in rain in the south-west until mid- period. SEA STATE: 3.0m in the east at first, with S to SW swell. TRISTAN (30S/40S, 00E/20W): WIND : Cyclonic 05 to 15, but S to SW 10 to 20 in the east, and NW to W 15 to 25 in the west, reaching 30 in the south-west, spreading eastwards where it will become SW 15 to 25 from mid- period. VIS : Good, otherwise moderate in showers and rain in the north-east at first and in the south-west spreading to the central parts by mid-period. SEA STATE: 3.0m in the south-west, reaching 4.0m by mid-period, with SW swell. CAPE WEST (30S/40S, 00E/20E): WIND : S to SE 15 to 25 in the north-east, but NE to N 05 to 15 in the south-east, otherwise NW 05 to 15 but SW in the south-west by mid-period. VIS : Good, but moderate in rain and showers in places in a band from north-west to central-south spreading to the south-east by mid-period. SEA STATE: 3.0m in the eastern half at first, then again at the end of the period, with S to SW swell, becoming NE swell at end of period. CAPE EAST (32.5S/40S, 20E/50E): WIND : W to SW 15 to 25, reaching 30 in the east becoming SE to E 05 to 15 in the west where it will become NE 15 to 25 by mid- period where it will reach 30 to 35 by the end of the period. VIS : Moderate in showers and rain in places, becoming good in the central part from mid-period. SEA STATE: 3.0 to 4.0m, reaching 5.0 to 6.5m in the central and eastern parts, with W to SW swell becoming E to SE swell in the north- west by end of period. DURBAN EAST (32.5S/25S, EAST COAST/55E): WIND : Anti-cyclonic 05 to 15, but S to SW 10 to 20 in the south-west and SE 10 to 20 in the central-north and NE 10 to 20 in the north-west, otherwise NW 10 to 20, reaching 30 in the south-east becoming S to SE in the west by mid-period. VIS : Good, but moderate in showers and thundershowers in places in the east, becoming moderate in showers and rain in the west towards mid-period spreading to the south-east by end of period. SEA STATE: 3.0 to 4.0m, reaching 5.0 to 6.0m in the central and southern parts, spreading to the south-east by mid-period, with S to SW swell. MOZAMBIQUE CHANNEL: WIND : N to NE 10 to 20 in the west, otherwise E to SE 05 to 15, reaching 20 to 25 in the south-east but 30 from mid-period. VIS : Good. SEA STATE: 3.0 to 4.0m in the south and eastern parts, with SW swell. MADAGASCAR EAST (10S/25S, EAST COAST/55E): WIND : E to NE 05 to 15 in the south, otherwise E to SE 10 to 20, reaching 25 in places in the northern parts. VIS : Moderate in rain and showers in places in the north, otherwise good. SEA STATE: 3.0 to 4.0m in the southern parts, with SW swell. MARION FORTIES EAST (40S/50S, 35E/50E): WIND : W to SW 20 to 30, becoming S to SW 20 to 30 in the west from mid-period while reaching 35 in the central parts that will spread to the south-east by the end of the period. VIS : Moderate to poor in rain and snow-showers. SEA STATE: 5.0 to 6.0m, with W to SW swell. AREA 2: ======= MARINE METEOROLOGICAL BULLETIN FROM METEO-FRANCE/LA REUNION ON AREA ACK (AMSTERDAM-CROZET-KERGUELEN) 25/09/18 AT 0600UTC AVERAGED WIND SPEED ON BEAUFORT SCALE. (WIND GUSTS MAY BE ABOUT 40% STRONGER THAN THE AVERAGES GIVEN HERE). PART 1: WARNING - STRONG GALE OVER CRO. - GALE OVER KER. PART 2: GENERAL SYNOPSIS, 25/09/18 AT 0000UTC - HIGH 1034 HPA NEAR 34S/86E, SLOW MOVING. - COLD FRONT AXIS 30S/49E, 38S/64E, 49S/76E, MOVING EASTWARD TO NORTH-EASTWARD. PART 3: FORECAST FOR 24 HOURS FROM 25/09/18 AT 0600UTC TO 25/09/19 AT 0600UTC WAM (30S/40S, 50E/65E) RAIN, FRONTAL SHOWERS WITH THUNDER AT TIMES, THEN SHOWERS LOCALLY WITH THUNDER. WIND: - OVER THE NORTHERN : WESTERLY 3 TO 5, 6 AT TIMES AT THE BEGINNING AND AT THE END. - OVER THE SOUTHERN : NORTH-WESTERLY 5 TO 6, LOCALLY 7. SEA : VERY ROUGH TO HIGH FROM THE NORTH TO THE SOUTH. LONG SOUTH-WESTERLY SWELL 4/6 M, LOCALLY 7 M OVER THE SOUTHERN. VIS : VERY POOR UNDER PRECIPITATION. AMS (30S/40S, 65E/80E) RAIN, FRONTAL SHOWERS WITH THUNDER AT TIMES. WIND: - OVER THE NORTHERN : NORTH-WESTERLY 3 TO 5, 6 AT TIMES. - OVER THE SOUTHERN : NORTH-WESTERLY 5 TO 6, LOCALLY 7 AT THE BEGINNING, WITH VIOLENT GUSTS. THEN 4 TO 5 LOCALLY 6 AT THE END. SEA : MODERATE TO VERY ROUGH FROM THE NORTH-EAST TO THE SOUTH-WEST, LOCALLY HIGH OVER THE FAR SOUTH-WESTERN AT THE END. BEHIND THE FRONT, SOUTH-WESTERLY SWELL 3/5 M, 4/6 M AT THE END. VIS : POOR TO VERY POOR UNDER FRONTAL PRECIPITATION. CRO (40S/50S, 50E/65E) RAIN AND SHOWERS. WIND: - OVER THE NORTHERN : WESTERLY 7 TO 8, 9 AT TIMES WITH VIOLENT GUSTS, DECREASING 5 TO 6 AT THE END. - OVER THE SOUTHERN : WESTERLY 8 TO 9 WITH VIOLENT GUSTS, DECREASING 5 TO 6 AT THE END. SEA : HIGH TO VERY HIGH, THEN VERY ROUGH TO HIGH AT THE END FROM THE WEST TO THE EAST. LONG WESTERLY SWELL 4/7 M, LOCALLY 8/9 M. VIS : POOR. KER (40S/50S, 65E/80E) RAIN AND SHOWERS. WIND: NORTH-WEST 6 TO 7, LOCALLY 8, DECREASING 5 TO 6 LOCALLY 7 AT THE END. SEVERE TO VIOLENT GUSTS. SEA : VERY ROUGH TO HIGH, TEMPORARILY VERY HIGH OVER THE SOUTH-WESTERN. WESTERLY SWELL, 4/5 M THEN LATER LONG SWELL 6/8 M. VIS : POOR UNDER PRECIPITATION.