IDY21091 40:2:1:04:70S075E25090:01:00 SECURITE High Seas Weather Warning for METAREA 10 Issued by the Australian Government Bureau of Meteorology, BNOC At 2358UTC 4 June 2023 GALE WARNING FOR SOUTHERN AREA SITUATION AT 0000UTC Vigorous flow associated with a frontal system 62S136E to low 971hPa near 64S140E to 66S156E. Forecast 62S144E 64S146E 66S159E at 050000UTC, 62S153E 66S155E 66S164E at 050600UTC, then east of area. AREA AFFECTED Bounded by 59S150E 60S160E 65S160E 65S150E 64S136E 62S135E 59S150E. FORECAST Northwest quarter winds within 600nm east of front, shifting westerly quarter within 180nm west of front. Wind speeds 34/45 knots, winds easing below 34 knots west of 158E by 050600UTC and throughout area by 051500UTC. Very rough to high seas. Moderate to heavy swell. 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. The next alert will be issued by 0500 UTC 05 June 2023