Bulletinset for METAREA 7 Edition date (UTC): 2025-07-19 00:01:30 ============================ HIGH SEAS FORECAST ============================ FQZA31 FAPR 181600 WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII. ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE 18TH OF JULY 2025 AT 16:00 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 182200 to 192200 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: NW 35 in the central and south-eastern parts until mid-period. 2. CAPE WEST: NW 35 in the south-west from mid-period. 3. MARION FORTIES EAST: W to NW 35 in the south. SYNOPTIC CHART 12:00Z ===================== High 1032 hPa 34s15e Low 1014 hPa 36s16w, Low 965 hPa 55s41e 1. Cold Front: 25s24w 30s17w into 36s16w. 2. Cold Front: 33s34e 35s37e 40s43e 44s49e 50s51e 55s50e into 55s41e. AREA FORECAST: ============== ASCENSION (06S/15S, 00E/20W): WIND : E to SE 10 to 20. VIS : Good. SEA STATE: 3.0m in the south-east until mid-period, with S swell. ANGOLA (06S/15S, 00E/00N): WIND : S to SE 05 to 15, but SW 05 to 10 in the east. VIS : Good. SEA STATE: 3.0m in the south, with S to SW swell. ST HELENA (15S/30S, 00E/20W): WIND : N to NW 15 to 25 in the south, but anticyclonic 05 to 10 in the central parts, otherwise E to SE 10 to 20. It will become SW to S 05 to 15 in the south-west towards mid-period. VIS : Good, but moderate in showers and rain in the south. SEA STATE: 3.0 to 3.5m in the north-east in the first half of the period, with S to SE swell. TRADES (15S/30S, 00E/WEST COAST): WIND : S to SE 10 to 20, reaching 25 in the south-east until mid-period, becoming variable 05 to 10 in the south-west towards the end of the period. VIS : Good. SEA STATE: 3.0 to 3.5m, reaching 4.0 to 4.5m in the south-east until mid- period, with S to SW swell. TRISTAN (30S/40S, 00E/20W): WIND : NW 15 to 25 in the east, reaching 30 to 35 in the central and south-eastern parts, otherwise SW to S 15 to 25 spreading to the south-east in the second half of the period. It will become anticyclonic 05 to 10 in the west towards the end of the period. VIS : Good, but moderate in rain and showers over the eastern half in the second half of the period. SEA STATE: 3.0 to 3.5m in the south, with SW swell. CAPE WEST (30S/40S, 00E/20E): WIND : SE 10 to 20 in the north-east, but anticyclonic 05 to 15 in the central parts, otherwise NW 20 to 30 reaching 35 in the south-west from mid-period. VIS : Good, but moderate to poor in showers and rain in the south-west. SEA STATE: 3.5 to 4.5m in the east and south subsiding in the north-east in the second half of the period, with W to SW swell. CAPE EAST (32.5S/40S, 20E/50E): WIND : N to NW 15 to 25 in the extreme east until mid-period, otherwise SW to S 15 to 25, but anticyclonic 05 to 15 in the north-west drifting to the central parts from mid-period. It will become NE to N 15 to 25 in the west in the second half of the period. VIS : Good, but moderate to poor in showers and rain in the east. SEA STATE: 3.0 to 3.5m in the east, otherwise 4.0 to 5.0m spreading to the east in the second half of the period, reaching 6.0m until mid- period, with W to SW swell. DURBAN EAST (32.5S/25S, EAST COAST/55E): WIND : SW to S 15 to 25 in the south-west at first, otherwise E to SE 10 to 20, but variable in the south-east from mid-period. VIS : Good, but moderate in showers and thundershowers in the west, spreading to the east from mid-period. SEA STATE: 3.5 to 4.5m in the south-west spreading over the western half by the end of the period, reaching 5.0m in the south-west at first, with SW swell. MOZAMBIQUE CHANNEL: WIND : S to SE 10 to 20 reaching 25 in the south-east from mid-period. VIS : Good, but moderate in rain and showers in the west and north. SEA STATE: 3.0 to 3.5m in the south towards the end of the period, with S to SW swell. MADAGASCAR EAST (10S/25S, EAST COAST/55E): WIND : S to SE 15 to 25, reaching 30 in the north-west. VIS : Moderate in light rain and showers in places. SEA STATE: 3.0 to 3.5m in the north and east, with E to SE swell. MARION FORTIES EAST (40S/50S, 35E/50E): WIND : SW 15 to 25 in the north, otherwise W to NW 20 to 30 spreading to the north-west, reaching 35 in the south. VIS : Moderate to poor in showers and rain, with possible snow showers in the south. SEA STATE: 3.0 to 4.0m in the north-east at first, otherwise 4.5 to 5.5m reaching 6.5 to 7.0m in the south, with W to NW swell. AREA 2: ======= MARINE METEOROLOGICAL BULLETIN FROM METEO-FRANCE/LA REUNION ON AREA ACK (AMSTERDAM-CROZET-KERGUELEN) 25/07/18 AT 1600UTC AVERAGED WIND SPEED ON BEAUFORT SCALE. (WIND GUSTS MAY BE ABOUT 40% STRONGER THAN THE AVERAGES GIVEN HERE). PART 1: WARNING NIL PART 2: GENERAL SYNOPSIS, 25/07/18 AT 1200UTC - LOW 962 HPA NEAR 54S/42E WITH COLD FRONT CF ASSOCIATED AND AXIS 36S/44E, 43S/50E, 50S/53E, 53S/51E MOVING EASTWARD. - HIGH 1038 HPA NEAR 41S/66E, MOVING EASTWARD SLOWLY. ASSOCIATED RIDGES OVER WAM AND KER. PART 3: FORECAST FOR 24 HOURS FROM 25/07/18 AT 1800UTC TO 25/07/19 AT 1800UTC WAM (30S/40S, 50E/65E) RAIN SHOWERS AND THUNDERY SQUALLS OVER SOUTHWESTERN AREA. WIND: ANTICLOCKWISE 3 TO 5, LOCALLY 6 OVER EASTERN AREA BUT NW 5 TO 6 AHEAD CF BY WESTERN AREA. SEA: MODERATE TO ROUGH, LOCALLY VERY ROUGH WITH SE SWELL 2 TO 3 METERS OVER EASTERN AREA BUT SW SWELL 3 TO 4 METERS OVER SOUTHWESTERN AREA AT END. VISI: BECOMING POOR UNDER PRECIPITATION NEAR CF. AMS (30S/40S, 65E/80E) SCATTERED SHOWERS. WIND: SE 6/7 OVER FAR EASTERN DECREASING ANTICLOCKWISE 3/5 BY WESTERN AREA. SEA: ROUGH TO VERY ROUGH. SOUTHERLY SWELL 3/4M OVER NORTHERN AREA. VISI: POOR UNDER SHOWERS. CRO (40S/50S, 50E/65E) RAIN SHOWERS AND THUNDERY SQUALLS UNDER CF WIND: NW 6/7 AHEAD CF BACKING W 5 TO 6 BEHIND CF. SEA: ROUGH TO VERY ROUGH LOCALLY HIGH BY WESTERN AREA. W SWELL 5 TO 6. VISI: VERY POOR IN PRECIPITATION. KER (40S/50S, 65E/80E) SCATTERED SHOWERS THEN FRONTAL RAIN AND SHOWERS CF AT END OVER SOUTHWESTERN AREA. WIND: ANTICLOCKWISE 4 TO 6 THEN NW 6 TO 7 AHEAD CF AT END BY WESTERN AREA. SEA: MODERATE TO ROUGH. SW SWELL 2 TO 3 METERS. VISI: POOR UNDER PRECIPITATIONS.