IDY10210 SECURITE 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 21 February 2017 PLEASE BE AWARE Wind gusts can be a further 40 percent stronger than the averages given here, and maximum waves may be up to twice the height. Part 1 Warnings Refer to latest warnings for details of area affected. Melbourne Gale Warning 4 New Zealand Gale warning 308 Part 2 Situation at 1800 UTC Refer to latest warnings for boundary of affected area and type of weather system. Cold front  31S134E 35S135E 39S133E to low  995hPa near 38S129E to 43S130E 50S130E. Forecast 35S140E to low  998hPa near 42S139E to 45S138E 50S144E at 221200UTC and 35S140E 42S139E 45S138E 50S144E at 230000UTC. Cold front  west of area and forecast 44S129E 47S134E 50S137E at 230000UTC. Trough 28S160E 33S164E 44S170E. Forecast 28S161E 31S164E 35S165E 40S170E at 230000UTC. Low  987hPa near 53S160E. Forecast low  994 hPa near 53S168E at 220600UTC and no longer affecting area by 221200UTC. High 1021hPa near 37S156E. Forecast 1026hPa near 43S164E at 230000UTC. Part 3 Forecast Refer to latest warning. Between trough and cold front , outside warning area: Clockwise winds 20/30 knots within 480nm of low , turning northerly quarter 20/30 knots within 540nm east of front . Winds southeast quarter 15/25 knots within 180nm west of trough. Winds grading to 25/33 knots within 120nm of warning areas. Moderate to rough seas. Moderate to heavy swell. Remainder west of cold front , outside warning areas: Westerly quarter winds 20/30 knots, turning clockwise within 300nm of low . Winds Northwesterly quarter 20/30 knots within 240nm east of cold front  and tending southwesterly quarter 15/25 knots north of 30S after 220600UTC. Winds grading to 25/33 knots within 120nm of warning areas. Moderate to rough seas. Low to moderate swell. Remainder: Winds not exceeding 25 knots. Slight to moderate seas. Low to moderate swell. Rain areas, scattered showers and isolated thunderstorms within 240nm of trough and cold front and 300nm of lows. Isolated showers remainder away from high. Visibility reducing below 2nm in precipitation. WEATHER MELBOURNE The next routine forecast will be issued at 08:00 UTC Wednesday.