Bulletinset for METAREA 7 Edition date (UTC): 2026-08-21 01:56:47 ============================ HIGH SEAS FORECAST ============================ FQZA31 FAPR 201700 WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII. ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE 20th OF AUGUST 2026 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: ======= FORECAST VALID FROM 202200 TO 212200 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: NW 35 to 40 in the extreme east until mid-period, otherwise W to SW 35 to 40, moderating from the west from mid-period. SYNOPTIC CHART 12:00Z ===================== High 1028 hPa 33s09e. Low 988 hPa 46s08w, Low 1020 hPa 28s34e, Low 968 hPa 51s55e 1. Cold front: 28s19w 34s10w 39s07w into 46s08w 2. Cold front: 34s44e 40s52e 44s54e into 51s55e AREA FORECAST: ============== ASCENSION (06S/15S, 00E/20W): WIND : E to SE 10 to 20. VIS : Good, but moderate in showers and rain in the extreme west until mid-period. ANGOLA (06S/15S, 00E/00N): WIND : S to SE 10 to 15 but SW 05 to 10 in the east where it will become variable 05 to 10 by mid-period. VIS : Good. ST HELENA (15S/30S, 00E/20W): WIND : E to SE 05 to 15 in the north and south-west, otherwise N to NW 10 to 20. VIS : Good but moderate in showers and rain in the south until the end of the period. SEA STATE: 3.0m in the central south until mid-period, with W to SW swell. TRADES (15S/30S, 00E/WEST COAST): WIND : S to SE 10 to 20 but N to NW 05 to 15 in the extreme south-west, while variable 05 to 10 in the extreme north-east until mid- period. VIS : Good. SEA STATE: 3.0m in the south-east at first, with S swell. TRISTAN (30S/40S, 00E/20W): WIND : N to NW 20 to 30 in the extreme east at first, otherwise W to SW 15 to 25. It will become NW 15 to 25 in the extreme west from mid- period. VIS : Good, but moderate to poor in showers and rain in the extreme east at first. SEA STATE: 3.0 to 4.0m except in the extreme north-east, with W to NW swell. CAPE WEST (30S/40S, 00E/20E): WIND : S to SE 10 to 20 in the north-east, otherwise N to NW 15 to 25, reaching 30 in the south. It will become W to SW 15 to 25 from the west from mid-period. VIS : Good but moderate in showers and rain in the west, spreading to the south from mid-period, while clearing from the west towards end of the period. SEA STATE: 3.0 to 4.0m in the south, with SW swell, but W to NW in the south- west, spreading to the extreme south-east towards end of the period. CAPE EAST (32.5S/40S, 20E/50E): WIND : W to SW 15 to 25, reaching 30 in the south-east, becoming E to NE 10 to 20 in the north-west from mid-period. It will become NW 15 to 25 in the extreme south-west towards end of the period. VIS : Moderate in showers and rain in the south, while clearing from the west from mid-period, otherwise good. SEA STATE: 3.0 to 4.0m, reaching 5.0 to 5.5m in the south-east, but 6.0 to 6.5m in the extreme south-east towards end of the period, with W to SW swell. DURBAN EAST (32.5S/25S, EAST COAST/55E): WIND : W 10 to 20 in the south-east at first, otherwise variable 05 to 10, but S to SE 10 to 20 in the north-west until mid-period. VIS : Good but moderate in showers and thundershowers in the east. SEA STATE: 3.0 to 3.5m in the south, reaching 4.0m in the central south and extreme south-east towards end of the period, S to SW swell. MOZAMBIQUE CHANNEL: WIND : S to SE 10 to 20. VIS : Good but moderate in showers in the north until mid-period. MADAGASCAR EAST (10S/25S, EAST COAST/55E): WIND : E to SE 10 to 20, but N to NE 05 to 15 in the south. VIS : Good but moderate in showers and rain in the north. MARION FORTIES EAST (40S/50S, 35E/50E): WIND : NW 30 to 40 in the extreme east until mid-period, otherwise W to SW 30 to 40, moderating to 15 to 25 from the west from mid-period. VIS : Moderate to poor in showers and rain with snow showers in the south, becoming good from the west from mid-period. SEA STATE: 5.0 to 6.0m, reaching 7.0 to 8.0m in places in the west, spreading to the central and north-east from mid-period, with W to SW swell. AREA 2: ======= MARINE METEOROLOGICAL BULLETIN FROM METEO-FRANCE/LA REUNION ON AREA ACK (AMSTERDAM-CROZET-KERGUELEN) 26/08/20 AT 1700UTC AVERAGED WIND SPEED ON BEAUFORT SCALE. (WIND GUSTS MAY BE ABOUT 40% STRONGER THAN THE AVERAGES GIVEN HERE). PART 1: WARNING - FORCE 8 GALE OVER WAM AND AMS.- STRONG GALE FORCE 9 GALE OVER CRO AND KER PART 2: GENERAL SYNOPSIS, 26/08/20 AT 1200UTC CF COLD FRONT OVER NORTH-EASTERN AMS, LEAVING THE AREA AT THE STARTCG COLD FRONT AXIS 39S/50E, 49S/54E, MOVING RAPIDLY EASTWARDS WITH A DEEPENING LOW 969 HPA NEAR 51S/55E.CH COLD FRONT ARRIVING FROM THE WEST OVER CRO AT THE END.HIGH 1024 HPA AROUND 24S/63E WITH A RIDGE MOVING SOUTH-EASTWARDS. PART 3: FORECAST FOR 24 HOURS FROM 26/08/20 AT 1800UTC TO 26/08/21 AT 1800UTC WAM (30S/40S, 50E/65E) RAIN AND FRONTAL SHOWERS, WITH CG STORMS. GUSTS. WIND: NORTH-WESTERLY 4 TO 7 FROM NORTH TO SOUTH AHEAD OF THE FRONT, REACHING LOCALLY 8 IN THE SOUTH-EAST, BACKING SOUTH-WESTERLY 6/7 BEHIND, LOCALLY 8 IN THE SOUTH-EAST, DECREASING DURING THE DAY 4/5 THEN LATER BECOMING ANTICLOCWIZE 2/4 IN THE NORTH AND SETTLING WESTERLY 6/7 IN THE SOUTH, LOCALLY REACHING 8 IN THE FAR SOUTH.SEA: ROUGH TO VERY ROUGH FROM NORTH TO SOUTH, BECOMING HIGH IN THE FAR SOUTH-WEST AT END. SOUTH-WESTERLY SWELL 3/5 METRES BEHIND THE FRONT. VISI: POOR TO VERY POOR IN PRECIPITATION. AMS (30S/40S, 65E/80E) RAIN AND SHOWERS IN THE NORTH-EAST AT FIRST WITH CF, THEN RAIN, SHOWERS AND SQUALLS WITH CG. VIOLENT GUSTS IN THE SOUTHWIND:ANTICLOCKWISE 2/4 WITH SOUTH-WESTERLY 5/6 IN THE SOUTH-EAST, SETTLING NORTH-WESTERLY 6/7 LOCALLY 8FROM THE SOUTH-WEST AHEAD THE FRONT CG, BACKING SOUTH-WESTERLY 5/6 BEHIND THE FRONT, LOCALLY 7/8 IN THE SOUTH, DECREASING 3/4 IN THE WEST AT END.SEA: ROUGH TO VERY ROUGH, HIGH IN THE SOUTH-EAST AT FIRST. SOUTH-WESTERLY SWELL 4/6 METERS, ABATING, THEN SOUTH-WESTERLY SWELL 3/5 METERS BEHIND THE FRONT CG.VISI: POOR TO VERY POOR IN PRECIPITATION. CRO (40S/50S, 50E/65E) RAIN AND FRONTAL SHOWERS, WITH SQUALL WITH CG, THEN LATER CH. VIOLENT GUSTS. SNOW IN THE SOUTH.WIND:NORTH-WESTERLY 7/8, LOCALLY 9 AHEAD OF CG, AND SOUTH-WESTERLY 7/8, LOCALLY 9 BEHIND, SOON DECREASING TEMPORARILY WESTERLY 6/7, THEN INCREASING LATER NORTH TO NORTH-WESTERLY 7/8 LOCALLY 9 AHEAD CH, THEN BACKING AT END WESTERLY THEN SOUTH-WESTERLY 7/8 LOCALLY 9 IN THE WEST.SEA: VERY ROUGH TO HIGH. NORTH-WESTERLY SWELL 3/4 METERS AHEAD OF THE FRONT AND WESTERLY SWELL 4/6 METERS BEHIND.VISI: VERY POOR IN PRECIPITATION. KER (40S/50S, 65E/80E) RAIN AND FRONTAL SHOWERS, THUNDERSTORMS CG. VIOLENT GUSTS. SNOW IN THE SOUTH.WIND:NORTHERLY TO NORTH-WEST 5/6, THEN 7/8 AHEAD OF THE FRONT, BACKING SOUTH-WEST 6/7, LOCALLY 8/9 IN THE NORTH, DECREASING LATER WESTERLY 4/6 IN THE WEST, BUT AT FIRST SOUTH-WEST 4/6 IN THE EAST, REACHING 7 IN THE NORTH-EASTSEA: VERY ROUGH TO HIGH, LOCALLY ROUGH IN THE SOUTH-EAST. SOUTH-WESTERLY SWELL 3/6 METERS ABATING, THEN NORTH-WESTERLY SWELL 3/4 METERS AHEAD CG AND WESTERLY SWELL 3/5 METER BEHIND IT.VISI: VERY POOR IN PRECIPITATION.=