Bulletinset for METAREA 7 Edition date (UTC): 2026-09-17 09:14:25 ============================ HIGH SEAS FORECAST ============================ FQZA31 FAPR 170830 WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII. ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE 17th OF SEPTEMBER 2026 AT 08:30 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 171000 TO 181000 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. TRADES: S to SE 35 to 40 in the south-east. 2. TRISTAN: N to NE 35 to 40 in the south-east. 3. CAPE WEST: SE to S 35 in the north-east, but N to NW 35 in the extreme south-west. 4. DURBAN EAST: S to SE 35 in extreme south-west from mid-period. 5. MARION FORTIES EAST: W to SW 35 in the south-west spreading to the east from mid-period, but W to NW 35 in the south-east at first. SYNOPTIC CHART 06:00Z ===================== High 1040 hPa 35s04e, High 1038 hPa 32s66e, Low 1008 hPa 44s18w, Low 999 hPa 57s25e, Low 998 hPa 48s54e, 1. Cold Front: 25s27e 36s22e 44s18e 49s42e into 44s18w. 2. cold front: 42s26e 48s32e 54s32e 57s27e into 57s25e. AREA FORECAST: ============== ASCENSION (06S/15S, 00E/20W): WIND : S to SE 15 to 25. VIS : Good. ANGOLA (06S/15S, 00E/00N): WIND : S to SE 15 to 25 but variable 05 to 10 in the east. VIS : Good. SEA STATE: 3.0 to 4.0m in the southern half, with S to SE swell. ST HELENA (15S/30S, 00E/20W): WIND : E to SE 20 to 30 but N to NW 20 to 30 in the south-west. VIS : Good but moderate to poor in showers and thundershowers in the south-west. SEA STATE: 3.0 to 4.0m in the east, with S to SE swell. TRADES (15S/30S, 00E/WEST COAST): WIND : S to SE 20 to 30 but 35 to 40 in the south-east. VIS : Good. SEA STATE: 3.0 to 4.0m reaching 5.0 to 6.0m in the south-east, with S to SE swell. TRISTAN (30S/40S, 00E/20W): WIND : Variable 05 to 10 in the north-west, otherwise N to NE 15 to 25 reaching 30 to 40 in the south-east, but SW to W 20 to 30 in the south-west spreading east from mid-period. VIS : Good but moderate to poor in showers and rain in the west spreading across the north-west to the south-east. SEA STATE: 3.0 to 4.0m, reaching 4.5m in places in the south-east, W to NW swell in the south. CAPE WEST (30S/40S, 00E/20E): WIND : Anticyclonic 05 to 15 but SE to S 25 to 35 in the north-east, but N to NW 25 to 35 in the extreme south-west. VIS : Good. SEA STATE: 3.0 to 4.0m in the north-east, with SE swell but 3.5 to 4.5m in the southern parts with NW swell. CAPE EAST (32.5S/40S, 20E/50E): WIND : Anticyclonic 05 to 15 in the south-west spreading to the south-east from mid-period, otherwise S to SE 15 to 25 but 30 in the north. VIS : Good but moderate in showers and rain in the north-east and in places in the south-west at first spreading to the south-east. SEA STATE: 3.0m SW swell but 3.5 to 4.0m in the northern parts with SE. DURBAN EAST (32.5S/25S, EAST COAST/55E): WIND : N to NE 15 to 25 in the east, otherwise variable 05 to 10, but S to SE 15 to 25 in the south-west, reaching 30 to 35 in extreme south-west from mid-period. VIS : Good but moderate to poor in showers and thundershowers in the west spreading to the south-east by mid-period. SEA STATE: 3.0m in the west, reaching 3.5 to 4.5m in the extreme south- west from mid-period, with S to SE swell. MOZAMBIQUE CHANNEL: WIND : N to NE 05 to 15, but S to SE 20 to 25 in the north-east until mid-period. VIS : Good. MADAGASCAR EAST (10S/25S, EAST COAST/55E): WIND : S to SE 15 to 25 in the north, otherwise NE to N 05 to 15 in the south, reaching 20 to 24 in the extreme south-west. VIS : Moderate in showers and rain in places in the north. SEA STATE: 3.0 to 3.5m except in the south, with E to SE swell. MARION FORTIES EAST (40S/50S, 35E/50E): WIND : W to SW 25 to 35 in the south-west spreading to the east from mid-period, otherwise W to NW 20 to 30, reaching 35 in the south-east at first. VIS : Moderate in showers and rain across the north-west and the southern parts, otherwise good. SEA STATE: 4.0 to 5.0m, reaching 5.5 to 6.5m in the southern half, with W to SW swell. AREA 2: ====== MARINE METEOROLOGICAL BULLETIN FROM METEO-FRANCE/LA REUNION ON AREA ACK (AMSTERDAM-CROZET-KERGUELEN) 26/09/17 AT 0500UTC AVERAGED WIND SPEED ON BEAUFORT SCALE. (WIND GUSTS MAY BE ABOUT 40% STRONGER THAN THE AVERAGES GIVEN HERE). PART 1: WARNING - STRONG GALE TO STORM OVER OF CRO AND KER PART 2: GENERAL SYNOPSIS, 26/09/17 AT 0000UTC - DEEPENING LOW 997 NEAR 48S/55E, WITH ASSOCIATED COLD FRONT (CF) AXIS 30S/34E, 38S/46E, 48S/55E, AND WARM FRONT (WF) AXIS 48S/55E, 49S/64E, 48S/74E, MOVING RATHER RAPIDLY EASTWARD. - WEAKENING HIGH 1037 NEAR 34S/65E SLOW-MOVING. PART 3: FORECAST FOR 24 HOURS FROM 26/09/17 AT 0600UTC TO 26/09/18 AT 0600UTC WAM (30S/40S, 50E/65E) FRONTAL RAIN AND SHOWERS OVER SOUTHERN. WIND: NORTHERN HALF :ANTICLOCKWISE 3/4 AT TIMES 5SOUTHERN HALF : NW 5/6 AHEAD OF CF AT TIMES 7, BACKING SOUTHERLY 5/6 BEHIND THEN DECREASING 4/5 LATER. GUSTS. SEA : MODERATE OVER NORTHERN, BUT ROUGH TO VERY ROUGH OVER SOUTHERN BY SW SWELL 3 TO 5M. VIS : POOR IN PRECIPITATION. AMS (30S/40S, 65E/80E) FRONTAL RAIN AND SHOWERS OVER FAR SOUTHERN AT END. WIND : NORTHERN HALF ANTICLOCKWISE 3/4.SOUTHERN HALF : W 5/6 AT TIMES 7 WITH GUSTS, BACKING SOUTHERLY 4/5 OVER FAR SOUTHERN AT END. SEA : MODERATE TO ROUGH, BUT VERY ROUGH AT FIRST OVER FAR NORTH-EASTERN BY SW SWELL 3 TO 4M, BECOMING SOON VERY ROUGH OVER FAR SOUTHERN BY SOUTH- WESTERLY SWELL INCREASING 3 TO 5M.VISI: GOOD, BUT POOR OVER FAR SOUTHERN AT END IN PRECIPITATION. CRO (40S/50S, 50E/65E) FRONTAL RAIN AND SHOWERS. SHOWERS FROM WEST BEHIND. WIND: NW 6/7 AHEAD OF CF, BACKING SW AND INCREASING 8/9 BEHIND, TEMPORARILY 10 OVER FAR SOUTH-EASTERN. SEVERE GUSTS. BECOMING LATER WESTERLY 6/7 FROM WEST AT TIMES 8, BUT SOUTH-WESTERLY 3/4 OVER FAR NORTHERN AT TIMES5. SEA: VERY ROUGH TO HIGH BY WESTERLY SWELL INCREASING 4 TO 6M, BECOMING ROUGH OVER FAR NORTH-WESTERN AT END.VISI: POOR OR VERY POOR IN PRECIPITATION. KER (40S/50S, 65E/80E) FRONTAL RAIN AND SHOWERS. SHOWERS FROM WEST BEHIND. WIND: INCREASING NW 6/7, AT TIMES 8, BECOMING SOON CLOCKWISE 8/9 LOCALEMENT 10. SEVERE GUSTS. DECREASING SOUTH-WESTERLY 5/6 OVER WESTERN AT END. SEA: VERY ROUGH TO HIGH, LOCALLY VERY HIGH, BY LONG WESTERLY SWELL INCREASING 5 TO 7M, LOCALLY 8M.VISI: POOR OR VERY POOR IN PRECIPITATION.=