IDY10210 SECURITE Updated High Seas Forecast for South Eastern Metarea 10 SOUTHEASTERN AREA: 28S/50S, 129E/170E Issued by the Australian Government Bureau of Meteorology, BNOC For 24 hours commencing 2300 UTC 28 August 2015 PLEASE BE AWARE Wind gusts can be 40 percent stronger than the averages given here, and maximum waves may be up to twice the height. Part 1 Warnings Melbourne Gale Warning 3 issued 281801UTC: Area bounded by 38S111E 45S128E 50S130E 50S106E 38S106E 38S111E. Melbourne Gale Warning 4 issued 281828UTC: Area bounded by 43S149E 46S152E 48S160E 46S160E 43S156E 39S154E 40S160E 38S160E 36S157E 36S153E 38S150E 40S149E 43S149E. New Zealand Gale Warning 674 issued 281845UTC: Over waters east of 160E. In an area bounded by 49S160E 45S160E 48S167E 49S160E: Easterly 35kt at times. Gale area slow moving. Part 2 Situation at 1800 UTC Refer to latest warnings. Ridge  32S137E to high 1035 hPa near 46S138E to 50S140E. Forecast 33S138E to high 1034 hPa near 48S140E to 50S141E at 290600UTC and 34S140E 46S141E 50S143E at 291800UTC. Developing ridge  forecast 31S159E 37S161E at 290600UTC and 32S163E 39S167E 42S167E at 291800UTC. Trough  28S158E 37S163E 42S161E to low  1003 hPa near 43S158E. Forecast 28S160E 37S168E 41S169E to low  1001 hPa near 44S158E at 290600UTC and 28S160E 35S170E at 291800UTC. Trough  40S144E to low  1012 hPa near 42S150E to low  1003 hPa near 43S158E to 46S170E. Forecast 38S144E to low  1005 hPa near 41S153E to low  1001 hPa near 44S158E to 43S170E at 290600UTC and 37S147E to low  997 hPa near 40S158E to low  1003 hPa near 452156E to 46S170E at 291800UTC. Part 3 Forecast Refer to latest warnings. Within 180nm of ridge , 120nm of ridge  and north of 32S east from 150E: Variable winds below 20 knots. Slight to moderate seas. Low to moderate swell. Remainder west of ridge  outside warning area: NE quarter winds north of 40S tending N quarter south of 40S. Wind speeds 15/25 knots increasing to 20/33 knots west of a line 36S129E 50S136E outside warning area. Moderate to rough seas. Moderate swell. Remainder east of ridge  and south of trough  outside warning areas: SE quarter winds tending S quarter north of low . Clockwise winds within 240nm of low  and 120nm of low . Wind speeds 20/33 knots outside warning areas decreasing to 15/25 knots within 300nm of ridge . Moderate to rough seas. Moderate swell. Remainder north of trough  outside warning area: NW quarter winds east of trough  tending N quarter south of 40S. W quarter winds west of trough  tending clockwise within 240nm of low  and 120nm of low . Clockwise winds within 360nm of low  after 291800UTC. Wind speeds 15/25 knots reaching 20/30 knots at times south of a line 34S151E 37S170E and grading to 25/33 knots within 120nm of warning area. Moderate to rough seas. Moderate to heavy swell. Rain areas, scattered showers and isolated thunderstorms within 240nm of lows and 180nm of troughs. Scattered to isolated showers remainder east of ridge  and away from ridge . Visibility reducing below 2nm in precipitation. WEATHER MELBOURNE The next routine forecast will be issued at 09:00 UTC Saturday.