IDY21010 40:2:1:04:70S100E35060:01:00 SECURITE High Seas Weather Warning for METAREA 10 Issued by the Australian Government Bureau of Meteorology, BNOC At 0029UTC 28 May 2020 GALE WARNING FOR SOUTHERN, SOUTHEASTERN AND WESTERN AREAS 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. SITUATION AT 0000UTC Vigorous flow associated with a complex low pressure system. Main low 972hPa near 45S113E at 280000UTC. Forecast 975hPa near 46S118E at 280600UTC, 974hPa near 48S125E at 281200UTC, 975hPa near 50S132E at 281800UTC and 971hPa near 53S138E at 290000UTC. AREA AFFECTED Bounded by 52S135E 55S140E 54S149E 47S146E 36S116E 39S104E 45S103E 51S135E. FORECAST Clockwise winds 30/ 40 knots within 540nm of complex low in the sector from south through west to southeast. Wind speeds increasing to 35/47 knots within 90nm of low in the northern semicircle. Rough to very rough seas rising to high near northern semicircle of low. Heavy swell.