IDY21000 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 1818UTC 15 September 2019 STORM FORCE WIND WARNING FOR WESTERN, SOUTHERN, AND SOUTHEASTERN 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 1800UTC Vigorous flow associated with a cold front 41S091E 51S107E to low 934hPa near 57S102E. Forecast 41S096E 53S115E to low 931hPa near 59S107E at 160000UTC, 42S102E 50S118E 55S123E to low 929hPa near 59S111E at 160600UTC, 43S111E 54S129E 61S132E to low 929hPa near 60S118E at 161200UTC, 44S118E 55S136E 61S140E to low 927hPa near 61S123E at 161800UTC. AREA AFFECTED Bounded by 64S131E 64S143E 54S151E 48S144E 44S129E 43S096E 51S090E 61S090E 64S131E. FORECAST Northwest quarter winds 30/40 knots within 600nm east of front, wind speeds increasing to 34/47 knots within 270nm east of front. Winds tending clockwise 30/40 knots within 720nm of low. Wind speeds grading to 34/47 knots within 360nm of low in the northern semicircle, and reaching 45/55 knots within 240 of low in the northern semicircle. Rough to very rough seas, rising to high to very high with winds above 40 knots. Moderate to heavy swell. See also Melbourne Gale Warning 2 and Melbourne Gale Warning 4.