Marine Weather for HS 016

Forecast
========= weather bulletin for the high seas for Metarea VII, west of 20e. Issued by the South African Weather Service on the 23rd September 2014 at 17:00 UTC.

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 232200 to 242200 utc:

Wind in knots, wave heights in metres. No sea state given if waves less than 3m.

Gale warnings: ============== 1. Tristan: W to SW 35 subsiding by the end of the period. 2. Cape west: SW to NW reaching 30 to 35 in the second half of the period.

Synoptic situation at 12:00z: ============================= high 1020 hpa 25s02e high 1028 hpa 38s51e. Low 956 hpa 52s05w low 1012 hpa 37s15e low 1014 hpa 34s26e.

1. Cold front: 22s24w 25s18w 30s10w 35s04w 40s01w 45s02e 53s06e 57s02w 52s05w.

Area forecast: ============== Ascension (06s/15s, 00e/20w) wind : se 05 to 15, but S to SW 05 to 10 in the North-East. Vis : good.

Angola (06s/s15s, 00e/west coast) wind : se 10 to 15 in the South-West, otherwise S to SW 05 to 10. Vis : good.

St Helena (15s/30s, 00e/20w) wind : E to se 10 to 20, but SW to NW 15 to 25 in the south-east in the first half of the period. Vis : good, but moderate in showers in the central parts during the first half of the period. Sea state: 3.0 to 3.5m in the South-West, spreading eastwards and reaching 4.0m at the end of the period, SW swell.

Trades (15s/30s, 00e/west coast) wind : S to se 10 to 20, but W to NW 10 to 20 in the extreme South- West, becoming SW 10 to 15 at the end of the period. Vis : good.

Tristan (30s/40s, 00e/20w) wind : N to NW 20 to 30 in the North-East at first, otherwise W to SW 20 to 30, reaching 35. It will become anti-cyclonic 05 to 10 in the north-west at the end of the period. Vis : moderate in showers and rain, but good in the north-west, spreading south-eastwards. Sea state: 4.0 to 5.0m, reaching 6.0 to 7.0m in the South-West, spreading eastwards, W to SW swell.

Cape west (30s/40s, 00e/20e) wind : SW to NW 15 to 25, reaching 35 in the second half of the period. Vis : good, but moderate in showers and rain the South-West, spreading eastwards. Sea state: 3.0 to 4.0m in the South-West, reaching 5.0 to 5.5m at the end of the period, W to SW swell.

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