Bulletinset for METAREA 7 Edition date (UTC): 2026-08-19 23:03:40 ============================ HIGH SEAS FORECAST ============================ FQZA31 FAPR 191730 CCA WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII. ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE 19th OF AUGUST 2026 AT 17:30 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 192200 TO 202200 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. TRISTAN: N to NW 35 to 40 in places in the central parts until mid- period but W to SW 35 to 40 in the central parts from mid- period. 2. CAPE EAST: N to NW 35 in the southern parts for the first-half of the period, but W to SW 35 in the south-central parts until mid-period. 3. DURBAN EAST: S to SW 35 in the west at first. 4. MARION FORTIES EAST: N to NW 35 over the central and eastern parts at first, otherwise W to SW 35 to 40 in the central and northern parts. SYNOPTIC CHART 12:00Z ===================== High 1028 hPa 31s04w, High 1023 hPa 34s43e, High 1026 hPa 27s68e. Low 996 hPa 43s19w, Low 1001 hPa 45s22e 1. Cold front: 36s24w 38s22w 38s19w 40s18w into 43s19w. 2. Cold front: 38s14e 39s18e 41s22e 44s22e into 45s22e. AREA FORECAST: ============== ASCENSION (06S/15S, 00E/20W): WIND : E to SE 10 to 20. VIS : Good. ANGOLA (06S/15S, 00E/00N): WIND : S to SE 10 to 15 but variable 05 to 10 in the east until mid- period becoming S to SW 05 to 10 towards the end of the period. VIS : Good. ST HELENA (15S/30S, 00E/20W): WIND : E to SE 10 to 20 but N to NW 10 to 20 in the south-west, spreading to the south-east from mid-period, reaching 25 to 30 in the extreme south-west until mid-period. It will become S to SW 10 to 20 in the south-west from mid-period. VIS : Good but moderate to poor in showers and rain in the south- West, spreading to the south-central from mid-period. SEA STATE: 3.0 to 4.0m in the south-west spreading to the south-central, with W to NW swell. TRADES (15S/30S, 00E/WEST COAST): WIND : S to SE 10 to 20, reaching 25 in places in the south-east. VIS : Good. SEA STATE: 3.0m in places in the south-east, with S to SW swell. TRISTAN (30S/40S, 00E/20W): WIND : N to NW 15 to 25, reaching 30 to 40 in places in the central parts until mid-period but W to SW 15 to 25 in the south-west spreading over the west and central parts towards mid-period, reaching 30 to 40 in the central parts from mid-period. VIS : Good, but moderate to poor in showers and rain in the west and central parts spreading to the east towards the end of the period. It will start to clear from the west towards mid- period. SEA STATE: 3.0 to 4.0m except in the north-east, reaching 4.5 to 5.5m in the West and central, with W to NW swell. CAPE WEST (30S/40S, 00E/20E): WIND : W to SW 10 to 20 in the south-east, reaching 25 in the extreme south-east until mid-period, otherwise anticyclonic 05 to 15. It will become E to SE 15 to 25 in the north-east by mid- period and N to NW 10 to 20 in the west from mid-period, reaching 25 to 30 in the south-west towards the end of the period. VIS : Good. SEA STATE: 3.0 to 3.5m except in the western and northern parts, reaching 4.0 to 5.0m in the south-east, but 5.5 to 6.5m in the extreme south-east until at first, with S to SW swell. CAPE EAST (32.5S/40S, 20E/50E): WIND : N to NW 15 to 25 in the central and eastern parts until mid- period, reaching 30 to 35 in the southern parts for the first- half of the period, otherwise W to SW 15 to 25, reaching 30 to 35 in the south-central until mid-period. It will become variable 05 to 10 in the north-west by the end of the period. VIS : Moderate to poor in showers and thundershowers in the central, spreading to the east by mid-period, otherwise good. SEA STATE: 3.0 to 4.0m, reaching 5.0 to 6.0m in southern parts, with W to SW swell. DURBAN EAST (32.5S/25S, EAST COAST/55E): WIND : S to SW 15 to 25 in the west until mid-period where it will reach 30 to 35 at first becoming E to SE 10 to 20 towards the end of the period, otherwise N to NW 10 to 20 but variable 05 to 10 in the north-east. VIS : Good. SEA STATE: 3.0 to 3.5m except in the northern parts, SW swell. MOZAMBIQUE CHANNEL: WIND : S to SE 05 to 15. VIS : Good. MADAGASCAR EAST (10S/25S, EAST COAST/55E): WIND : E to SE 10 to 20, but 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 : N to NW 20 to 30 over the central and eastern parts until mid- period, where it will reach 35 at first, otherwise W to SW 20 to 30, reaching 35 to 40 in the central and northern parts. VIS : Moderate to poor in showers and rain in the west and central, spreading to the east by mid-period. Possible snow showers in the south. It will start to clear in the west towards the end of the period. SEA STATE: 4.0 to 5.0m, reaching 6.0 to 7.0m in places in the central and south, with NW swell in the east but W to SW swell in the west. AREA 2: ======= MARINE METEOROLOGICAL BULLETIN FROM METEO-FRANCE/LA REUNION ON AREA ACK (AMSTERDAM-CROZET-KERGUELEN) 26/08/19 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 FORCE 9 OVER CRO AND KER. PART 2: GENERAL SYNOPSIS, 26/08/19 AT 1200UTC - LOW 974 HPA NEAR 48S/67E WITH COLD FRONT CF ASSOCIATED AND AXIS 36S/61E, 38S/67E, 41S/74E, 45S/81E MOVING QUICKLY EASTWARD. - CG FRONT AXIS 47S/31E, 48S/34E, 50S/39E, 53S/47E MOVING QUICKLY EASTWARD. - HIGH 1027 HPA NEAR 27S/68E, MOVING SLOWLY NORTH-EASTWARD. PART 3: FORECAST FOR 24 HOURS FROM 26/08/19 AT 1800UTCTO 26/08/20 AT 1800UTC WAM (30S/40S, 50E/65E) FRONTAL RAIN AND SHOWERS UNDER CF AT BEGINNING THEN UNDER CG. WIND: BACKING SOUTH-WESTERLY 5/6, LOCALLY 7 BEHIND CF, BECOMING ANTICLOCKWISE 2/4 LATER, THEN INCREASING NW 6/7 AHEAD CG. SEA : MODERATE TO ROUGH, LOCALLY VERY ROUGH OVER SOUTH-EASTERN AREA. SW SWELL 3 TO 4 METERS. VIS : POOR IN PRECIPITATION. AMS (30S/40S, 65E/80E) RAIN AND FRONTAL SHOWERS UNDER CF. WIND: NORTH-WESTERLY 5 TO 7 AHEAD CF BACKING SOUTH-WESTERLY 5/6, LOCALLY 7 BEHIND CF BY SOUTH-WESTERN AREA, THEN SETTLING SOUTHERLY 3/4 BY WESTERN AREA. SEA : MODERATETO VERY ROUGH FROM NORTH TO SOUTH. SW SWELL 3 TO 5 METERS. VIS : POOR IN PRECIPITATION. CRO (40S/50S, 50E/65E) RAIN ANDFRONTAL SHOWERS CG. SNOW IN SOUTH. VIOLENT GUSTS. WIND: INCREASING NORTH-WESTERLY 6/7 LOCALLY 8 AHEAD CG BACKING SW 6 TO 8 LOCALLY 9 BEHIND CG. SEA : ROUGH TO VERY ROUGH. SW SWELL 3 TO 5 METERS. VIS : VERY POOR IN PRECIPITATION. KER (40S/50S, 65E/80E) RAIN, FRONTAL SHOWERS AND SQUALLS UNDER CF. SNOW IN SOUTH. VIOLENT GUSTS. WIND: CLOCKWISE 7/8 LOCALLY 9 OVER SOUTHERN AREA DECREASING SW 6/7 BEHIND CF BUT INCREASING N 5 TO 7 LOCALLY 8 AHEAD CG BY WESTERN AREA AT END. SEA : ROUGH TO VERY ROUGH LOCALLY HIGH OVER SOUTHERN AREA. WESTERLY SWELL 5 TO 7 METERS. VIS : VERY POOR IN PRECIPITATION.