Southern Area High Seas Forecast

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 2300 UTC 20 October 2025

Part 1 Warnings
Refer to latest warnings for details of the area affected.

Melbourne Gale Warning 5.
Melbourne Gale Warning 6.
Melbourne Gale Warning 7.

Part 2 Situation at 201800 UTC
Low [1] 983hPa near 52S134E. Forecast low [1] 981hPa near 50S153E at 210600UTC,
and decaying thereafter.

Low [2] 949hPa near 58S156E. Forecast low [2] 953hPa near 59S159E at 210000UTC,
and east of area thereafter.

Trough west of area, forecast to enter near 50S080E 52S079E at 211800UTC, and
near 50S086E 57S080E at 220000UTC.

Part 3 Forecast
Refer to latest warnings for boundary of affected area and type of weather
system.

East of line 50S115E 54S112E 61S112E, outside warning areas:
Westerly quarter winds north of lows shifting clockwise within 300nm lows. Wind
speeds 25/33 knots. Rough to very rough seas. Moderate to heavy swell.

West of line 50S094E 53S088E 59S094E 61S094E, outside warning area:
Westerly quarter winds, shifting northerly quarter within 240nm east of trough.
Wind speeds 25/33 knots. Rough to very rough seas. Low to moderate swell.

Remainder:
Winds not exceeding 25 knots. Moderate to rough seas. Moderate to heavy swell.

Rain areas, scattered showers and isolated thunderstorms mostly within 420nm of
low [2], within 240nm of low [1] and within 180nm of trough. Visibility
reducing below 2nm in precipitation.

Part 4 Ice edge
Approximately 61S080E 61S090E 59S110E 59S120E 61S140E 60S150E 61S160E.

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 08:00 UTC Tuesday.