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 2300 UTC 19 April 2026
Part 1 Warnings
Refer to latest warnings for boundary of affected area and type of weather
system.
Melbourne Gale Warning 5.
Melbourne Gale Warning 7.
Melbourne Gale Warning 8.
Melbourne Gale Warning 9.
Part 2 Situation at 191800 UTC
Trough [1] near 37S097E 42S105E 46S109E. Forecast near 28S110E 32S115E 35S115E
at 201200UTC, then weakening.
Cold front [1] forecast to develop near 35S114E 37S115E to developing low
995hPa near 40S116E to developing warm front near 44S120E. Forecast near
34S123E 37S124E to low 986hPa near 42S123E to warm front near 46S124E 49S126E
at 210000UTC.
Trough [2] near 45S074E 48S080E 50S080E. Forecast near 40S093E 46S104E 50S105E
at 210000UTC.
Cold front [2] forecast to enter area from the south near 48S081E 49S087E
50S088E at 201200UTC, and near 44S089E 47S098E 50S100E at 210000UTC.
Part 3 Forecast
Refer to latest warnings for details of the area affected.
South of line 39S080E 26S104E 33S129E, outside warning areas:
Westerly quarter winds, shifting northwesterly quarter within 360nm east of
cold fronts, northerly quarter within 360nm east of warm front, shifting
southwesterly quarter within 180nm west of cold fronts and troughs, and turning
clockwise within within 240nm of low. Wind speeds 20/33 knots. Rough to very
rough seas. Moderate to heavy swell.
Remainder:
Winds not exceeding 25 knots. Moderate to rough seas. Low to moderate swell.
Rain areas, scattered showers and isolated thunderstorms mostly within 180nm of
cold fronts, lows and line 18S090E 13S110E 15S125E. 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 09:00 UTC Monday.
