FQAU23 AMMC 310900

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 31 July 2026



Part 1 Warnings

Refer to latest warnings for boundary of affected area and type of weather

system.



Melbourne Gale Warning 1

Melbourne Gale Warning 2.



Part 2 Situation at 310600 UTC

Trough to 35S112E 44S115E to low [1] 994hPa near 49S111E. Forecast trough

35S120E to low [1] 1001hPa near 47S129E at 010000UTC, low [1] east of area

thereafter. Forecast trough 35S123E 45S129E at 011200UTC.



Cold front [1] 40S121E 43S122E to low [2] 1002hPa near 44S120E. Forecast cold

front [1] 37S125E 43S129E 50S133E to low [2] 996hPa near 49S129E at 312100UTC,

low [2] east of area thereafter. Forecast cold front [1] near 37S127E 43S129E

at 010000UTC and then east of area thereafter.



Cold front [2] west of area, forecast to enter near 46S080E 50S084E at

311800UTC, and forecast cold front [2] near 36S084E 41S093E 50S101E at

011200UTC.



Part 3 Forecast

Refer to latest warnings for details of the area affected.



South of line 34S080E 41S102E 34S111E 33S125E 36S129E, outside of warning areas:

Southwesterly quarter winds, shifting northwesterly quarter within 300nm east

of cold fronts, and turning clockwise around lows. 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,

increasing to heavy swell south of line 38S092E 34S093E 30S109E 30S116E.



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

fronts, and lows. 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 Friday.