####018008137#### FQZA31 FAPR 291700 WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII. ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE 29th OF APRIL 2024 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 292200 TO 302200 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. ST HELENA : It will become NW 35 at times, spreading east and becoming SW 35 second half of the period in the south-west 2. TRISTAN : S to SW 35 to 40 in the south-east, otherwise N to NW 35 in the extreme west. It will become Cyclonic 35 to 40 in the central and north-western parts end of the first half of the period. 3. CAPE WEST: W to NW 35 to 40 over the central parts and over the south-west mid-period. 4. CAPE EAST :NW 35 in the extreme south-east. 5. MOZAMBIQUE CHANNEL: S to SE 35 to 40 in the north-east mid- period. 6. MARION FORTIES EAST: W to NW 35 to 40 in the north mid-period SYNOPTIC CHART 12:00Z ===================== High 1024 hPa 34s45e. Low 1008 hPa 37s23e Low 988 hPa 43s01e 1. Cold front: 27s03w 35s08e 40s09e into 43s01e 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 05 to 15, but SW 05 to 15 in the extreme. VIS : Good. ST HELENA (15S/30S, 00E/20W): WIND : W to SW 10 to 20 in the south-east, otherwise anticyclonic 05 to 10 but SE 10 to 15 in the north-east spreading west. It will become NW 20 to 30 in the south-west mid-period reaching 35 at times, spreading east and becoming SW 25 to 35 second half of the period in the south-west. VIS : Good, but moderate in showers and rain in places in the south- west and extreme north. SEA STATE: 3.0 to 4.0m, in the south-east, First half of the period and the in the south-west towards end of the period, mainly SW swell. TRADES (15S/30S, 00E/WEST COAST): WIND : SE 10 to 15 in the north-west, otherwise S to SW 05 to 15, but W to NW 15 to 25 in the south-west spreading east. It will become Variable 05 to 15 in the central parts. VIS : Good, but moderate in rain and showers in the extreme south- west. TRISTAN (30S/40SE, 00E/20W): WIND : S to SW 15 to 25, reaching 35 to 40 in the south-east, otherwise N to NW 15 to 25 reaching 30 to 35 in the extreme west. It will become Cyclonic 20 to 30 in the west towards the end of the first half of the period reaching 35 to 40 in the central and north-western parts. VIS : Moderate to poor in showers and rain. SEA STATE: 3.0 to 4.0m, reaching 4.5 to 5.0m in places in the south-east, and north-east, S to SE swell but SW in the north-east. It will reach 6 to 8.0m in the south-east by mid period and reaching 4.5 to 5.0m in the extreme west towards the end of the period. CAPE WEST (30S/40S, 00E/20E): WIND : N to NE 15 to 25 in the east, otherwise W to NW 15 to 25, reaching 30 to 40 over the central parts and over the south-west mid-period. VIS : Moderate to poor in showers and rain. SEA STATE: 3.0 to 4.0m in the east, S to SE swell reaching 4.5 to 6.0m in the south-east. It will become 3.0 to 4.0m in the west mid- period reaching 4.5 to 5.5m in the north-west. CAPE EAST (32.5S/40S, 20E/50E): WIND : Anti-cyclonic 05 to 15 in the north-east, otherwise N to NE 15 to 25, reaching 25 in the north but NW 15 to 25 in the south-west spreading east and reaching 30 to 35 in the extreme south-east. It will become W to SW 20 to 30 in the west towards end of the period. VIS : Good but moderate in showers and rain in the south. SEA STATE: 3.0 to 4.0m, in the east reaching 4.5 to 5.0m in the south- east, SW swell. DURBAN EAST (32.5S/25S, EAST COAST/55E): WIND : N to NE 15 to 25 in the west, reaching 30 in the extreme south-west, otherwise E to SE 10 to 20 but Variable 10 in the south-east at first. VIS : Good but moderate over the central parts at times. MOZAMBIQUE CHANNEL: WIND : S to SE 15 to 25 reaching 30 to 40 in the north-east mid- period. VIS : Moderate in showers and thundershowers, but good in the south. MADAGASCAR EAST: WIND : E to SE 10 to 20 reaching 25 in the extreme north but NE 10 to 15 in the extreme south-west. VIS : Moderate in showers and thundershowers, but good in the extreme south. MARION FORTIES EAST (40S/50S, 35E/50E): WIND : W to NW 15 to 25, reaching 30 to 40 in the north mid-period, becoming SW 15 to 25 in the south-west spreading east. VIS : Good but moderate in showers in the west. SEA STATE: 3.0 to 4.0m in the extreme north-west, otherwise 5.0 to 6.5m, but 7.5 to 8.5m in the south-east, reaching 9.5 to 11.0m in the extreme south-east S to SW swell. AREA 2: ======= MARINE METEOROLOGICAL BULLETIN FROM METEO-FRANCE/LA REUNION ON AREA ACK (AMSTERDAM-CROZET-KERGUELEN) DATE: 24/04/29 at 1700 utc AVERAGED WIND SPEED ON BEAUFORT SCALE. (Wind gusts may be stronger than averages given here). PART 1: WARNING: - Gale to strong gale force 8/9 over KER. - Gale force 8 over CRO, temporally Strong gale to storm force 9/10 over south-eastern at first. PART 2: GENERAL SYNOPSYS, 24/04/29 at 1200 UTC: - Cold front CG over KER axis 40S/65E 50S/75E moving rapidly eastward at 30/35 kt. Associated low 950 near 58S/62E, moving eastward. - Cold front CF forecast over western CRO at end. - High 1025 hPa near 35S/44E moving north-eastward over northern WAM and north-western AMS. PART 3: FORECAST FOR 24 HOURS from 29/04/24 at 1800 UTC to 30/04/24 at 1800 UTC: WAM (30S/40S, 50E/65E): Scattered showers. WIND : Anticlockwise 2/4 over northern, SW 5/6 to the south locally 7 over far southern becoming NW 5/6 later. SEA: rough to very rough, becoming very rough to high over southern. SW swell 3/4 m increasing soon 5/6m by southern locally 7m over far southern. VISI: moderate. AMS (30S/40S, 65E/80E): Scattered showers. WIND : W to SW 5/6 locally 7 over far southern, decreasing SW 3/5 over north-western soon. SEA: rough becoming very rough to high over south-western. SW swell 2/3m increasing to 4/6m over the south-western. VISI: moderate. CRO (40S/50S, 50E/65E): Rain and frontal showers with CF at en, loc snow in the south. WIND : SW 7/8 temporally 9/10 over south-eastern at first. Decreasing W 6/7 later and increasing NW 7/8 at end ahead of CF. Strong gusts. SEA: High to very high becoming very rough by western at end, SW swell 5/6m increasing 7/8m soon then decreasing 4/5m by western at end. VISI: poor. KER (40S/50S, 65E/80E): Rain and frontal showers CG leaving the area by eastern soon. loc snow in the south. WIND : NW 6/7, locally 8 ahead of CG, backing W 7/8 behind, temporally 9 over far south-west at first. SEA: rough to very rough, becoming high to very high over south-western half at first. SW swell 3/4 m increasing 7/8m by western soon. VISI: poor.