Bulletinset for METAREA 7 Edition date (UTC): 2025-07-11 10:21:29 ============================ HIGH SEAS FORECAST ============================ FQZA31 FAPR 110830 WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII. ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE 11TH OF JULY 2025 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 111000 to 121000 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. CAPE WEST: SW 35 in the south-east until towards mid-period. 2. CAPE EAST: NW 35 to 40 in the south, but W to SW 35 to 45 in the western parts, drifting to the southern parts by mid-period, while moderating from the west. 3. MARION FORTIES EAST: NW 35 to 40, becoming W to SW 35 in the west towards the end of the period. SYNOPTIC CHART 06:00Z ===================== High 1032 hPa 34s10w, High 1039 hPa 33s60e Low 984 hPa 49s30e 1. Cold Front: 31s13e 35s19e 40s24e 45s28e into 49s30e AREA FORECAST: ============== ASCENSION (06S/15S, 00E/20W): WIND : E to SE 05 to 15. VIS : Good, but moderate in light rain in the south-west. ANGOLA (06S/15S, 00E/00N): WIND : S to SE 05 to 15, but SW 05 to 10 in the east. VIS : Good. ST HELENA (15S/30S, 00E/20W): WIND : SE to E 05 to 15, reaching 20 to 25 in the eastern parts at first. VIS : Moderate in rain and showers in places, but good in the north- east and south-west. SEA STATE: 3.0 to 3.5m in the eastern parts, with S to SW swell. TRADES (15S/30S, 00E/WEST COAST): WIND : S to SE 15 to 25, reaching 30 in the south-east from mid-period. VIS : Good, but moderate in rain and showers in the western parts. SEA STATE: 3.0 to 3.5m in the central and southern half, but 3.5 to 4.5m in the south, with S to SW swell. TRISTAN (30S/40S, 00E/20W): WIND : Anticyclonic 05 to 15, but W to NW 20 to 30 in the south. It will become SW 15 to 25 in the south-west towards mid-period, spreading to the south-east by the end of the period. VIS : Moderate to poor in rain and showers in the southern half, becoming good from the south-west towards mid-period. SEA STATE: 3.0 to 4.0m in the southern parts, but in the eastern half until mid-period, with S to SW swell. CAPE WEST (30S/40S, 00E/20E): WIND : S to SE 10 to 20 in the northern parts, otherwise SW 15 to 25 reaching 30 to 35 in the south-east until towards mid-period, but anticyclonic 05 to 15 in the west, spreading to the central parts towards the end of the period, while becoming NW 15 to 25 from the south-west. VIS : Good, but moderate in showers and rain in the south and eastern half, clearing in the south and north-east from mid-period. SEA STATE: 3.5 to 4.0m in the north-east, otherwise 4.5 to 5.5m reaching 6.0 to 7.0m in the south-eastern parts until mid-period, with SW swell. CAPE EAST (32.5S/40S, 20E/50E): WIND : NW 15 to 25, reaching 30 to 40 in the south, but W to SW 35 to 45 in the western parts, drifting to the southern parts by mid- period, while moderating to 10 to 20 from the west. VIS : Good, but moderate to poor in rain and showers in the western and central parts, spreading to the south-eastern parts towards the end of the period, while clearing from the west. SEA STATE: 3.0 to 4.0m in the north-east, otherwise 5.0 to 6.0m, reaching 6.5 to 7.0m in the south-west, drifting to the south towards the end of the period, with SW swell. DURBAN EAST (32.5S/25S, EAST COAST/55E): WIND : NW 15 to 25 in the south-west, otherwise N to NE 10 to 20 reaching 25 to 30 in the west and north-east. It will become SW to S 20 to 30 in the extreme south-west towards mid-period, and SE 15 to 25 in the west towards the end of the period. VIS : Good, but moderate in showers and rain in the south and north- east, but in the south-west towards mid-period. SEA STATE: 3.0 to 4.0m in places, with S to SW swell. MOZAMBIQUE CHANNEL: WIND : NE 05 to 15 in the south-west, otherwise E to SE 10 to 20, reaching 25 in the south-east and the extreme north-east, but variable 05 to 10 in the central parts. VIS : Good, but moderate in rain and showers in places in the northern parts. MADAGASCAR EAST (10S/25S, EAST COAST/55E): WIND : E to SE 15 to 25, reaching 30 in the extreme north-east, but NE 15 to 25 in the south. VIS : Moderate in rain and showers in places. SEA STATE: 3.0 to 4.0m, with E to SE swell. MARION FORTIES EAST (40S/50S, 35E/50E): WIND : NW 30 to 40, becoming W to SW 25 to 35 in the west towards the end of the period. VIS : Moderate to poor in showers and rain with possible snow in the central and southern half from towards mid-period. SEA STATE: 5.0 to 6.0m, reaching 6.5 to 7.0m in the southern parts, but in the western parts from mid-period, with W to NW swell. AREA 2: ======= MARINE METEOROLOGICAL BULLETIN FROM METEO-FRANCE/LA REUNION ON AREA ACK (AMSTERDAM-CROZET-KERGUELEN) 2025/07/11 AT 0500UTC AVERAGED WIND SPEED ON BEAUFORT SCALE. (WIND GUSTS MAY BE ABOUT 40% STRONGER THAN THE AVERAGES GIVEN HERE). PART 1: WARNING - GALE RUNNING OVER KER AND EXPECTED OVER WAM. - GALE TO STRONG GALE EXPECTED OVER CRO. PART 2: GENERAL SYNOPSIS, 2025/07/11 AT 0000UTC - COLD FRONT (CF) OVER KER DRIFTING AWAY THROUGH EAST. - WIDESPREAD HIGH 1038 NEAR 34S/62E SLOW-MOVING. - LOW EXPECTED 958 NEAR 54S/46E THE 12/07 AT 00UTC, WITH ASSOCIATED WARM FRONT (WG) SOON OVER CRO, AND COLD FRONT (CG) AT END OVER CRO AN FAR SOUTH-WESTERN WAM. PART 3: FORECAST FOR 24 HOURS FROM 2025/07/11 AT 0600UTC TO 2025/07/12 AT 0600UTC WAM (30S/40S, 50E/65E) FRONTAL RAIN AND SHOWERS WITH CG AT END OVER FAR SOUTH-WESTERN. WIND: ANTICLOCKWISE 3/4, BUT 5 OVER FAR NORTHERN AND FAR SOUTHERN, INCREASING SOON NW 5/6 OVER SOUTHWESTERN, THEN 7/8 LATER. GUSTS. SEA : MODERATE TO ROUGH, BECOMING SOON ROUGH TO VERY ROUGH OVER SOUTH- WESTERN. SW WELL 2 TO 3M. VIS : POOR OR VERY POOR WITH CG, GOOD ELSEWHERE. AMS (30S/40S, 65E/80E) SCATTERED SHOWERS OVER FAR SOUTHERN. WIND: ANTICLOCKWISE 3/4 AT TIMES 5 BUT SW 5/6 WITH GUSTS OVER SOUTH-EASTERN AT FIRST. SEA : ROUGH BECOMING MODERATE TO ROUGH. SW SWELL 2 TO 3M. VIS : MAINLY GOOD. CRO (40S/50S, 50E/65E) FRONTAL RAIN AND SHOWERS (WG THEN CG), LOCALLY SQUALLS. WIND: NW 5/6 AT TIMES 7 INCREASING 7/8 TEMPORARILY 9 OVER FAR SOUTH-WESTERN. SEVERE GUSTS. SEA : ROUGH TO VERY ROUGH, BUT HIGH OVER FAR SOUTHERN, BECOMING LATER VERY ROUGH TO HIGH. WESTERLY SWELL 3 TO 5M. VIS : POOR OR VERY POOR IN PRECIPITATION. KER (40S/50S, 65E/80E) FRONTAL RAIN AND SHOWERS (CF THEN WG OVER WESTERN AT END). WIND: SW 6/7 OVER EASTERN AT TIMES 8. ELSEWHERE WESTERLY 4/5 OVER NORTHERN BUT 6/7 OVER SOUTHERN. INCREASING LATER NW 6/7 FROM WEST THEN 7/8 AT END. GUSTS. SEA : ROUGH TO VERY ROUGH, BUT HIGH OVER FAR SOUTHERN. LONG SOUTH-WESTERLY SWELL 3 TO 5M. VIS : POOR IN PRECIPITATION. Private Bag X097, Pretoria, 0001 Tel: + 27 (0) 12367 6000 www.weathersa.co.za USSD: *120*7297# Document Reference: Page 2 of 4 Private Bag X097, Pretoria, 0001 Tel: + 27 (0) 12367 6000 www.weathersa.co.za USSD: *120*7297#