Bulletinset for METAREA 7 Edition date (UTC): 2025-12-19 13:07:40 ============================ HIGH SEAS FORECAST ============================ FQZA31 FAPR 191330 WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII. ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE 19TH OF DECEMBER 2025 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 192200 TO 202200 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 in the extreme south-east. 2. CAPE WEST: S to SE 35 in the extreme north-east from mid-period. 3. CAPE EAST: NW to W 35 in the south-east until mid-period. 4. MARION FORTIES EAST: NW 35 to 45 in the south-east at first, but SW to W 35 to 45 in the south-west, drifting to the south- east by mid-period. SYNOPTIC CHART 12:00Z ===================== High 1024 hPa 33s01w, High 1020 hPa 33s41e Low 1014 hPa 46s05e, Low 964 hPa 54s39e 1. Cold Front: 40s00e 42s08e 47s10e into 46s05e. 2. Cold Front: 38s39e 50s52e 55s50e 58s36e into 54s39e. AREA FORECAST: ============== ASCENSION (06S/15S, 00E/20W): WIND : E to SE 10 to 15. VIS : Good. 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 10 to 20, but NE 05 to 15 in the south-west. VIS : Good. TRADES (15S/30S, 00E/WEST COAST): WIND : S to SE 10 to 20, reaching 25 to 30 in the south-east but 35 in the extreme south-east. VIS : Good. SEA STATE: 3.0 to 3.5m in the south-east, with S to SE swell. TRISTAN (30S/40S, 00E/20W): WIND : Anticyclonic 05 to 15 in the north-east, otherwise N to NW 10 to 20, but variable 05 to 10 in the south-west. VIS : Good, but moderate in showers and rain in the west. CAPE WEST (30S/40S, 00E/20E): WIND : Anticyclonic 05 to 15 in the south-east, otherwise S to SE 10 to 20 reaching 25 in the north-east, but 35 in the extreme north- east from mid-period, but SW to W 10 to 20 in the south-west. VIS : Good. SEA STATE: 3.0 to 4.0m in the east and south, with SW swell. CAPE EAST (32.5S/40S, 20E/50E): WIND : NW to W 15 to 25 in the east, reaching 30 to 35 in the south-east until mid-period, but Anticyclonic 05 to 15 in the north-east, otherwise SW to S 15 to 25, but SE 05 to 15 in the extreme west, spreading to the west by mid-period. VIS : Good, but moderate in showers and rain in the central and eastern parts. SEA STATE: 3.0 to 4.0m reaching 4.5 to 5.5m in the south, with SW swell. DURBAN EAST (32.5S/25S, EAST COAST/55E): WIND : Anticyclonic 05 to 15 in the extreme south, otherwise S to SE 05 to 15 reaching 20 in the north-central part, but N to NE 10 to 20 in the east and in the south-east by the end of the period. VIS : Good, but moderate to poor in showers and thundershowers in the extreme west from mid-period and in the east. SEA STATE: 3.0m in the south-west by the end of the period, with S to SW swell. MOZAMBIQUE CHANNEL: WIND : Variable 05 to 10 in the north, otherwise E to SE 10 to 20. VIS : Moderate in showers and thundershowers in places. MADAGASCAR EAST (10S/25S, EAST COAST/55E): WIND : E to NE 10 to 20. VIS : Moderate in showers and thundershowers in places. MARION FORTIES EAST (40S/50S, 35E/50E): WIND : NW 20 to 30 reaching 35 to 45 in the south-east at first, otherwise SW to W 20 to 30, reaching 35 to 45 in the south-west, drifting to the south-east by mid-period. VIS : Moderate in rain and showers, except in the north. SEA STATE: 5.0 to 6.0m, reaching 7.0 to 8.0m in places, but 9.0 to 10.0m in the south, with SW to W swell. AREA 2: ======= MARINE METEOROLOGICAL BULLETIN FROM METEO-FRANCE/LA REUNION ON AREA ACK (AMSTERDAM-CROZET-KERGUELEN) 2025/12/19 AT 0400UTC AVERAGED WIND SPEED ON BEAUFORT SCALE. (WIND GUSTS MAY BE ABOUT 40% STRONGER THAN THE AVERAGES GIVEN HERE). PART 1: WARNING - GALE FORCE 8 EXPECTED OVER SOUTH-WESTERN KER AT THE END. - GALE FORCE 8 TO STRONG GALE FORCE 9 EXPECTED BY SOUTH-WESTERN CRO SOON. PART 2: GENERAL SYNOPSIS, 25/12/19 AT 0000UTC - WAVING FRONT BETWEEN NORTH-WESTERN WAM TO SOUTH-EASTERN KER PASSING BY NORTH-EASTERN CRO AT FIRST AND MOVING EASTWARD. - DISTURBANCE ARRIVING BY WESTERN CRO SOON AND MOVING EASTWARD, REACHING SOUTH-WESTERN KER AT THE END. - HIGH 1031 HPA OVER AMS MOVING SLOWLY EASTWARD AND HIGH 1021 HPA ARRIVING BY WESTERN WAM. PART 3: FORECAST FOR 24 HOURS FROM 25/12/19 AT 0600UTC TO 25/12/20 AT 0600UTC WAM (30S/40S, 50E/65E) FRONTAL SHOWERS AND RAIN. WIND : NW 4 TO 6 AHEAD OF THE FRONT BECOMING ANTICLOCKWISE 3 TO 4 BEHIND AND INCREASING NW 5 TO 6 LOCALLY 7 WITH GUSTS BY SOUTH-WESTERN. SEA : MODERATE TO ROUGH, LOCALLY VERY ROUGH OVER SOUTHERN. SW SWELL 2 TO 4M VIS : POOR IN PRECIPITATION. AMS (30S/40S, 65E/80E) RAIN AND SHOWERS OVER FAR SOUTH-WESTERN AT THE END . WIND : ANTICLOCKWISE 2 TO 4 INCREASING NW 5/6 OVER SOUTH-WESTERN. SEA : MODERATE LOCALLY ROUGH OVER SOUTH-WESTERN. VIS : GOOD. CRO (40S/50S, 50E/65E) FRONTAL RAIN AND SHOWERS OVER NORTH-EASTERN THEN BY WESTERN SOON. WIND : W 64 TO 6 FROM NORTH TO SOUTH INCREASING NW 6/7 LOCALLY 8/9 WITH SEVERE GUSTS BY WESTERN WITH THE DISTURBANCE. SEA : ROUGH TO VERY ROUGH, LOCALLY HIGH OVER FAR SOUTHERN AREA AT END. WEST SWELL 2 TO 4M. VIS : VERY POOR IN PRECIPITATION. KER (40S/50S, 65E/80E) FRONTAL RAIN AND SHOWERS OVER NORTH-EASTERN THEN BY WESTERN AT THE END. WIND : WESTERLY 6 TO 7 DECREASING ANTICLOCKWISE 3 TO 4 IN THE DAYTIME OVER WESTERN THEN INCREASING NW 6/7 LOCALLY 8 WITH GUSTS BY WESTERN AT THE END. SEA : ROUGH TO VERY ROUGH. W SWELL 2 TO 4M. VIS : POOR IN PRECIPITATION.