####018004276#### FQZA83 FAPR 180830 WEATHER BULLETIN FOR THE HIGH SEAS FOR METAREA VII, WEST OF 20E ISSUED BY THE SOUTH AFRICAN WEATHER SERVICE ON THE 18TH OF APRIL 2024 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 181000 TO 191000 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: N to NW 35 in the south-central parts towards mid-period onwards, but SW 35 in places in the south-west in the second half of the period. 2. TRISTAN: S to SE 35 in the north-central towards mid-period, spreading to the central parts towards mid-period whilst reaching 45 in places. It will become N to NW 35 in places in the north-east towards the end of the period. SYNOPTIC CHART 06:00Z ===================== High 1016 hPa 30s09e. Low 1004 hPa 34s12w. Cold Front: 23s13w 28s09w cont. 33s08w into (1004 hPa) 34s12w cont. 39s07w. AREA FORECAST: ============== ASCENSION (06S/15S, 00E/20W): WIND : SE to E 10 to 15, but NE 10 in the south-west during the first half of the period. VIS : Good, but moderate in showers in the extreme north-east at times. ANGOLA (06S/15S, 00E/00N): WIND : S to SW 05 to 10 in the south-east, otherwise SE 10 to 15. VIS : Good but moderate in showers and thundershowers in the extreme north-east at times. ST HELENA (15S/30S, 00E/20W): WIND : NE 10 to 15 in the north-east, otherwise N to NW 10 to 20 reaching 30 to 35 in the south-central towards mid-period, but W to SW 15 to 25 in the south-west, spreading eastwards and northwards by the second half of the period whilst reaching 30 in places in the south-west. VIS : Good in the north-east, otherwise moderate in showers and rain, with thundershowers in places in the south. SEA STATE: 3.0 to 3.5m in the south-west, spreading to the central and south-eastern parts towards mid-period whilst reaching 4.0 to 5.0m in places, SW to W swell. TRADES (15S/30S, 00E/WEST COAST): WIND : SE to E 10 to 20 but NE to N 10 to 20 in the south-west, reaching 30 in the extreme south-west towards the end of the period. VIS : Good. TRISTAN (30S/40SE, 00E/20W): WIND : SW 15 to 25 in the extreme south-east at first, otherwise S to SE 15 to 25 reaching 30 to 35 in the north-central towards mid-period spreading to the central parts and reaching 45 in places in the second half of the period. It will be N to NW 15 to 25 in the north-east where it will reach 30 to 35 towards the end of the period. VIS : Good in the south-east at first, otherwise moderate to poor in showers and rain, with thundershowers in the north-central and north-eastern parts. SEA STATE: 3.0 to 4.0m reaching 4.5 to 5.5m in the north-central towards mid-period, SW to S swell, but SE swell in the central and north-central parts. CAPE WEST (30S/40S, 00E/20E): WIND : Anticyclonic 05 to 15 in the east, otherwise N to NW 15 to 25, becoming SE 15 in the extreme south-west towards mid-period. VIS : Good, but moderate to poor in showers and thundershowers in the extreme west, spreading to the central parts in the second half of the period. SEA STATE: 3.0 to 3.5m in the south-west, reaching 4.0m in places during the first half of the period, SW swell.####018001480#### FQAU21 AMMC 180815 40:2:1:31:11:01:00 IDY10240 SECURITE High Seas Forecast for Northern METAREA 8/10/11 NORTHERN AREA: EQUATOR TO 12S, 90E TO 142E AND SOUTHWARD TO COAST, 125E TO 142E Issued by the Australian Government Bureau of Meteorology For 24 hours commencing 1100 UTC 18 April 2024 Part 1 Warnings Nil. Part 2 Situation at 0600 UTC Tropical low 1003hPa near 09S140E, forecast 1003hPa near 11S139E at 191200UTC. Part 3 Forecast South of line 11S106E 11S096E: Southeasterly quarter winds 15/25 knots. Moderate to rough seas. Moderate swell. East of line 14S136E 10S136E: Southeasterly quarter winds 15/25 knots turning clockwise within 180nm of tropical low. Moderate to rough seas. Low swell. Remainder: Winds not exceeding 20 knots. Slight to moderate seas. Low swell, increasing to moderate west of line EQ096E 10S114E 12S114E. Rain areas, scattered showers and isolated thunderstorms throughout most of area except south of line 12S122E 10S110E 07S103E 08S095E. Heavy at times within 120nm of tropical low and 60nm of line 10S126E 09S129E. Visibility reducing below 2nm in precipitation. Please be aware Wind and wave forecasts are averages. Wind gusts can be 40 per cent stronger than the forecast, and stronger still in squalls and thunderstorms. Maximum waves can be twice the forecast height. WEATHER MELBOURNE The next routine forecast will be issued at 20:15 UTC Thursday.