FQAU23 AMMC 050900

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 5 May 2025



Part 1 Warnings

Melbourne Storm Force Wind Warning 1.

Melbourne Storm Force Wind Warning 2.



Part 2 Situation at 0600 UTC

Trough near 12S101E 23S104E. Forecast trough weakening near 12S095E 24S097E at

061200UTC.



Ridge near 36S090E 47S090E. Forecast ridge 37S107E 50S112E at 061200UTC.



Warm front entering area from west near 47S086E 47S080E. Forecast warm front

46S097E 50S087E 50S080E at 060000UTC, then 47S105E 50S101E at 061200UTC.



Cold front [1] 46S112E to developing low 981hPa near 50S115E. Forecast cold

front [1] 42S123E 46S130E to low 969hPa near 49S129E at 051800UTC, then system

east of area.



Forecast cold front [2] entering area from west near 35S075E 50S078E at

060300UTC, then near 34S079E 42S083E 50S080E at 061200UTC.



Part 3 Forecast

Refer to latest warnings.



North of line 25S095E 25S105E:

Easterly quarter winds turning southeasterly quarter west of trough. Wind

speeds 20/30 knots. Rough seas. Low to moderate swell.



South of line 30S080E 47S097E 39S106E 35S129E, outside warning areas:

Westerly quarter winds turning northwesterly quarter west of ridge. Winds

shifting southwesterly quarter within 1080nm west of cold front [1], northerly

quarter within 420nm east of cold front [2], and northeasterly quarter south of

warm front. Clockwise winds within 180nm of low. Wind speeds 25/33 knots. Rough

to very rough seas. Moderate to heavy swell.



Remainder:

Winds not exceeding 25 knots. Moderate to rough seas. Low to moderate swell,

increasing to moderate to heavy swell east of line 32S129E 32S113E 43S093E.



Rain areas, scattered showers and isolated thunderstorms mostly within 240nm of

fronts, trough and low. 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 Monday.