Marine Weather for HS 015

Forecast
========= weather bulletin for the high seas for Metarea VII.East of 20e issued by the South African Weather Service on the 26th November 2014 at 08:30 UTC.

For southeast 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 261000 to 271000 utc:

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

Gale warnings: ============== 1.Cape west : cyclonic 35 in the east at first.

2.Cape east: NE 35 to 40 in the west spreading east

Synoptic situation at 06:00z ============================ high 1022 hpa 27s13w high 1026 hpa 42s36e low 1006 hpa 34s18e low 990 hpa 53s05e low 972 hpa 63s33e.

1. Cold front: 37s06w 40s03w 45s03e 50s08e into 53s05e into 63s33e.

Area forecast: ============== cape east (32.5s/40s, 20e/50e) wind : E to se 10 to 20 in the east, reaching 25 to 30 in places in the North-East, otherwise NE 15 to 25 reaching 30 to 40 in the west spreading east. It will become cyclonic 20 to 30 in the extreme west overnight. Vis : moderate to poor in showers in places at times sea state: 3.5 to 4.5m with mainly NE.Swell in the extreme west.

Durban east (25s/32.5s, East Coast/55e) wind : N to NE 15 to 25 in the extreme east at first, otherwise NW to SW 10 to 20, reaching 25 to 30, but S to se 15 to 25 in the west becoming NE 10 to 20 in the South-West. Vis : good but moderate to poor in showers in places. Sea state: 3.0 to 3.5m in places in the central parts, SW swell.

Mozambique channel: wind : se to E 05 to 15, reaching 20 but S to SW 15 to 25 in the extreme east at times. Vis : good but moderate in thundershowers in places in the north and south-east spreading north at times.

Madagascar east: wind : E to NE 10 to 20, but se 10 to 20 in the extreme north. Vis : moderate in showers in places at times.

Marion forties east: (40s/50s, 35e/50e) wind : S to SW 10 to 20 in the north otherwise W to NW 15 to 25 reaching 30 in the extreme south at times. Vis : moderate in the extreme south, otherwise good. Sea state: 3.0 to 4.0m, reaching 4.5 to 5.0m in the extreme south at first, SW swell.

Area 2: ======= marine meteorological bulletin from Meteo-France/La Reunion on area ack (amsterdam-Crozet-kerguelen) date: 14/11/26 at 0500utc

Averaged wind speed on Beaufort scale. (Wind gusts may be about 40% stronger than the averages given here.).

Part 1: warning: strong gale force 8 over ker.

Part 2: general synopsys, 14/11/26 at 0000 utc:

- high 1027 hpa near 38s/85e moving eastward 20/25 kt.

- Cold front axis: 30s/50e, 35s/50e, 41s/59e, 46s/68e moving east 25/30 kt.

- Cold front axis: 44s/60e, 50s/69e, 55s/68e, 60s/61e, associated low 976 hpa near 57s/65e, moving eastward 25/30 kt.

Part 3: forecast for 24 hours from 14/11/26 at 0600 UTC to 14/11/27 at 0600utc :

Wam (30s/40s, 50e/65e): frontal squalls and showers.

Wind: northerly 4/6 ahead the front backing se 4/6 behind.

Sea : moderate to rough, arrival moderate SW swell over southern area.

Vis : poor in precipitations.

Ams (30s/40s, 65e/80e): scattered showers then frontal showers over southern area.

Wind: N 2/4 then NW 4/6 over southern area.

Sea : moderate to rough.

Vis : good.

Cro (40s/50s, 50e/65e): showers.

Wind: SW to W 5/7.

Sea : moderate to rough, locally very rough in southern. Moderate SW swell.

Vis : good.

Ker (40s/50s, 65e/80e): frontal rains and showers.

Wind: NW 6 to 8 ahead the front, backing W 6/8 behind.

Sea : rough to very rough locally high. Moderate westerly swell.

Visi: poor in precipitations.

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