IDY10250
SECURITE
High Seas Forecast for Southern METAREA 10
SOUTHERN AREA: 50S80E TO 50S160E TO ICE EDGE
Issued by the Australian Government Bureau of Meteorology
For 24 hours commencing 1100 UTC 24 December 2025
Part 1 Warnings
Nil.
Part 2 Situation at 240600 UTC
Trough [1] 54S160E 57S149E. Forecast near 54S166E 52S163E 51S159E at 251200UTC.
Cold front entering area from the north near 36S092E to low 996hPa near 52S106E
to warm front 53S116E. Forecast cold front near 50S114E 57S123E to low 994hPa
near 60S124E to warm front 60S129E 58S133E at 251200UTC.
Trough [2] forecast to enter area from the west near 50S079E 55S076E 59S067E at
241800UTC, then near 50S093E 57S090E 59S080E at 251200UTC.
Part 3 Forecast
Within 300nm east of cold front:
Northwesterly quarter winds 20/30 knots. Winds easing below 25 knots by
241200UTC. Rough seas. Moderate to heavy swell.
North of line 53S126E 56S148E 55S153E:
Southwesterly quarter winds 20/30 knots. Rough seas. Moderate to heavy swell.
West of line 61S080E 56S097E 50S099E:
Northeasterly quarter winds 20/30 knots within 120nm east of trough [2],
shifting westerly quarter west of trough [2]. Rough seas. Low to moderate swell.
Remainder:
Winds not exceeding 25 knots. Slight to moderate seas. Moderate to heavy swell.
Rain areas, scattered showers and isolated thunderstorms mostly within 180nm of
fronts and troughs. Visibility reducing below 2nm in precipitation.
Part 4 Ice edge
Approximately 64S080E 64S090E 63S100E 63S120E 64S130E 62S140E 62S149E 63S160E.
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.
WEATHER MELBOURNE
The next routine forecast will be issued at 20:00 UTC Wednesday.
