Australian Government

Bureau of Meteorology


High Seas Forecast 

Marine (lite) Home

IDY10220
SECURITE

High Seas Forecast for Western METAREA 10
12S TO 30S BETWEEN 90E AND 125E, AND 30S TO 50S BETWEEN 80E AND 129E

Issued by the Australian Government Bureau of Meteorology
For 24 hours commencing 1100 UTC 19 June 2025

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

Melbourne Gale Warning 3.
Melbourne Gale Warning 4.
Melbourne Gale Warning 10.

Part 2 Situation at 190600 UTC

Cold front [1] 35S102E 40S115E 50S126E. Forecast 42S124E 45S129E at 200000UTC,
then east of area thereafter.

Cold front [2] 39S097E 45S104E. Forecast 27S106E 32S112E 38S115E to developing
low 1002hPa near 41S114E to warm front 40S116E 41S122E at 200000UTC, then cold
front [2] 25S113E 34S119E to low 1000hPa near 40S120E to warm front 45S129E at
201200UTC.

Cold front [3] forecast entering area from west near 46S080E 50S082E at
200300UTC, then 41S080E 45S089E 50S094E at 201200UTC.

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

South of line 39S080E 20S096E 24S113E 45S129E, outside warning areas:
Northwesterly quarter winds shifting southwesterly quarter within 240nm west of
cold front [1], within 720nm west of cold front [2] and west of cold front [3].
Winds tending southeasterly south of warm front and turning clockwise within
120nm of low. Rough to very rough seas. Heavy swell.

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

Rain areas, scattered showers and isolated thunderstorms mostly within 180nm of
fronts and troughs, and within 60nm of line 12S097E 21S114E. Visibility
reducing below 2nm in precipitation.

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 21:00 UTC Thursday.