Bulletinset for METAREA 7 Edition date (UTC): 2026-08-21 16:34:56 ============================ HIGH SEAS FORECAST ============================ FQZA31 FAPR 211330 WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII. ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE 21st OF AUGUST 2026 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 212200 TO 222200 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 in the south-west. 2. CAPE EAST: W to SW 35 to 40 in the north-west from mid-period. 3. DURBAN EAST: SW 35 to 40 in the extreme south-west towards the end of the period. 4. MARION FORTIES EAST: N to NW 35 in places in the south-west towards mid-period. SYNOPTIC CHART 12:00Z ===================== High 1024 hPa 29s16w High 1024 hPa 26s01e High 1022 hPa 38s22e High 1024 hPa 32s36e High 1022 hPa 24s38e Low 968 hPa 51s08e Low 970 hPa 52s50e Low 978 hPa 49s46e Low 1020 hPa 28s36e Low 1020 hPa 26s48e 1. Cold front: 28s06w 32s01e 37s07e 42s10e 47s12e into 51s08e 2. Cold front: 42s35e 47s52e into 52s50e 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 20 becoming SW 05 to 15 in the east from mid-period. VIS : Good. ST HELENA (15S/30S, 00E/20W): WIND : N to NW 05 to 15 in the south-west, otherwise E to SE 10 to 20, but variable 05 in the south-east. VIS : Good becoming moderate in rain in the south-west towards end of the period. TRADES (15S/30S, 00E/WEST COAST): WIND : S to SE 15 to 25, reaching 30 in the extreme east towards end of the period. VIS : Good. TRISTAN (30S/40S, 00E/20W): WIND : Variable 05 to 10 in the north-east, otherwise N to NW 15 to 25, reaching 30 to 35 in the south-west. VIS : Good becoming moderate in showers and rain in the south-west from mid-period. SEA STATE: 3.0 to 4.0m in the south, reaching 4.5 to 5.0m in the extreme south-west towards mid-period, with W to NW swell. CAPE WEST (30S/40S, 00E/20E): WIND : N to NW 15 to 25 in the south-east, reaching 30 in the extreme south-east, otherwise W to SW 15 to 25. It will become NW 10 to 20 in the south-west from mid-period. VIS : Good but moderate to poor in showers and thundershowers in the south-east until mid-period. SEA STATE: 3.0 to 4.0m in the south, with W to SW swell. CAPE EAST (32.5S/40S, 20E/50E): WIND : NW 20 to 30 in the south-west, spreading to the central parts towards end of the period, otherwise W to SW 20 to 30. It will be NE 10 to 20 in the north-west, reaching 25, becoming W to SW 15 to 25 from mid-period, reaching 30 to 40. VIS : Moderate in showers and rain in the east, otherwise good. It will become moderate to poor in showers and thundershowers in the west by mid-period, spreading to the central parts towards end of the period. SEA STATE: 3.0 to 4.0m, reaching 5.0 to 6.0m in the south-east until mid period, with W to SW swell. DURBAN EAST (32.5S/25S, EAST COAST/55E): WIND : NW 05 to 15 in the extreme north-east at first, otherwise anticyclonic 05 to 15, but N to NE 15 to 25 in the west. It will become SW 20 to 30 in the south-west towards the end of the period, while reaching 35 to 40 in the extreme south-west. VIS : Good but moderate in showers and thundershowers in the extreme north-east at first. SEA STATE: 3.0 to 4.0m in the south, spreading to the north-east from mid- period, reaching 4.5 to 5.0m in the extreme south-west toward 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 extreme north-east at first. MADAGASCAR EAST (10S/25S, EAST COAST/55E): WIND : E to SE 10 to 20, but variable 05 to 10 in the south. VIS : Good becoming moderate in showers and rain. MARION FORTIES EAST (40S/50S, 35E/50E): WIND : S to SW 15 to 25, reaching 30 in the extreme east at first, becoming N to NW 20 to 30 in the west towards mid-period while reaching 35 in places in the south-west. It will become SW 20 to 30 in the extreme west at end of the period. VIS : Moderate to poor in snow showers in the south-east until mid-period, otherwise good. It will become moderate to poor in showers and rain in the west towards the end of the period. SEA STATE: 5.0 to 6.0m, reaching 7.0 to 8.0m in places in the extreme east at first, while subsiding to 4.0 to 5.0m from the west towards mid- period, with W to SW swell, becoming NW swell in the west from mid-period. AREA 2: ======= MARINE METEOROLOGICAL BULLETIN FROM METEO-FRANCE/LA REUNION ON AREA ACK (AMSTERDAM-CROZET-KERGUELEN) 26/08/21 AT 0600UTC AVERAGED WIND SPEED ON BEAUFORT SCALE. (WIND GUSTS MAY BE ABOUT 40% STRONGER THAN THE AVERAGES GIVEN HERE). PART 1: WARNING - GALE TO LOCALLY STORM CONTINUING OR EXPECTED IN ALL AREAS. PART 2: GENERAL SYNOPSIS, 26/08/21 AT 0000UTC - COLD FRONT AXIS 32S/50E, 34S/59E, 40S/64E, 45S/66E, 53S/65E, RAPIDLY MOVING EASTWARDS.- NEW COLD FRONT EXPECTED VERY SOON OVER CRO, DUE TO A LOW EXPECTED 969 NEAR 52S/52E THE 21 AT 12 UC, MOVING EASTWARDS AND DEEPENING. EXPECTED 964 NEAR 50S/63E THE 22 AT 06 UTC. PART 3: FORECAST FOR 24 HOURS FROM 26/08/21 AT 0600UTC TO 26/08/22 AT 0600UTC WAM (30S/40S, 50E/65E) FRONTAL RAIN OR SHOWERS, AT TIMES THUNDERY. WIND: SOUTHWEST 5 OR 6, BUT NORTHWEST AT FIRST IN FAR NORTHEAST, INCREASING SOON WESTERLY 7 OR 8 IN SOUTH WITH SEVERE GUSTS AND BECOMING LOCALLY VARIABLE 2 TO 4 IN NORTH. SEA : ROUGH OR VERY ROUGH, CROSSED, BECOMING SOON LOCALLY HIGH IN SOUTH. SW SWELL 4 OR 5 M IN SOUTH. VIS : POOR OR VERY POOR IN PRECIPITATION. AMS (30S/40S, 65E/80E) FRONTAL RAIN OR SHOWERS, AT TIMES THUNDERY. WIND: NORTHWEST 7 OR 8, BACKING RAPIDLY SOUTHWEST BEHIND THE FRONT WHILE DECREASING 5 OR 6, INCREASING NORTHWEST 7 OR 8 AT END FROM WEST. SEVERE GUSTS. SEA : ROUGH TO VERY ROUGH, CROSSED. SW SWELL 4 OR 5 M IN EAST AT FIRST, THEN IN FAR SOUTHWEST SOON. VIS : POOR OR VERY POOR IN PRECIPITATION. CRO (40S/50S, 50E/65E) FRONTAL RAIN OR SHOWERS. SNOW IN SOUTH. WIND: WEST OR SOUTHWEST 5 OR 6, RAPIDLY INCREASING NORTHWEST 7 OR 8, BACKING SOON SOUTHWEST 8 OR 9, AT TIMES 10 IN SOUTH, DECREASING 6 OR 7 FROM WEST AT END. SEVERE GUSTS. SEA : VERY ROUGH OR HIGH, CROSSED, BECOMING LOCALLY VERY HIGH IN EAST AT END. SW SWELL 4 OR 5 M. VIS : POOR OR VERY POOR IN PRECIPITATION. KER (40S/50S, 65E/80E) FRONTAL RAIN OR SHOWERS. SNOW IN SOUTH. WIND: NORTH 7 OR 8, AT TIMES 9, BACKING SOUTHWEST BEHIND THE FRONT, DECREASING SOON OR LATER TEMPORARILY 5 OR 6, INCREASING NORTHWEST 8 OR 9 AT END FROM WEST. SEVERE GUSTS. SEA : VERY ROUGH OR HIGH, CROSSED. WSW SWELL INCREASING 4 OR 5 M. VIS : POOR OR VERY POOR IN PRECIPITATION.