FQAU23 AMMC 250800

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 25 March 2025



Part 1 Warnings

Gale Warning issued by TCWC Melbourne for Tropical Low 27U.

Melbourne Gale Warning 3.

Melbourne Gale Warning 4.



Part 2 Situation at 0600 UTC

Trough [1] near 12S098E to low [1] 1003hPa near 13S101E Tropical Low (27U)

992hPa near 17.3S105.3E to monsoon trough near 15S125E. Forecast trough near

12S103E to Tropical Low (27U) 994hPa near 16.5S101E to monsoon trough near

14S125E 17S102E at 261200UTC.



Low [1] 1003hPa near 13S101E. Forecast low 1003hPa near 13S102E at 251800UTC

then weakening afterwards.



Trough [2] near 47S077E 50S080E. Forecast near 45S088E 50S091E at 261200UTC.



Cold front 32S066E to low [2] 993hPa near 46S080E. Forecast cold front near

36S084E 45S100E to low [2] 997hPa near 51S109E at 261200UTC.



Part 3 Forecast

Refer to latest warnings.



Within 180nm of Tropical Low (27U), outside warning area:

Clockwise winds 20/33 knots. Moderate to rough seas. Low to moderate swell.



Within 180nm of line 21S101E 29S110E:

Southeasterly quarter winds 20/30 knots. Moderate to rough seas. Low to

moderate swell.



South of line 39S080E 47S129E, outside warning areas

Northwesterly quarter winds, shifting southwesterly west of cold front. 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 south of line 42S111E 42S129E.



Rain areas, scattered showers and isolated thunderstorms mostly within 180nm of

front/troughs, 240nm of lows and monsoon troughs, and east of line 12S115E

19S115E. Heavy at times within 90nm of Tropical Low (27U) and 150nm of line

15S120E 12S131E. 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 20:00 UTC Tuesday.