Western Area High Seas Forecast

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 29 July 2026

Part 1 Warnings
Refer to latest warnings for boundary of affected area and type of weather
system.

Melbourne Hurricane Force Wind Warning 11.
Melbourne Final Gale Warning 9.
Melbourne Gale Warning 1.

Part 2 Situation at 290600 UTC
Cold front 41S091E 44S096E 50S096E to low 965hPa near 50S096E, low moving south
of area thereafter. Forecast cold front near 42S121E 47S129E at 301200UTC.

Forecast trough developing near 43S083E 47S089E at 292100UTC, then trough near
41S100E 45S103E 48S101E at 301200UTC.

Part 3 Forecast
Refer to latest warnings for details of the area affected.

South of line 40S080E 37S097E 42S129E, outside warning areas:
Westerly quarter winds. WInds turning northwesterly quarter within 540nm east
of cold front, contracting to 360nm east of cold front by 300000UTC. Winds
turning southwesterly quarter within 480nm west of cold front until 291500UTC
and west of trough from 292100UTC. 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 moderate to heavy swell south of line 37S080E 33S089E 33S099E
39S114E.

Rain areas, scattered showers and isolated thunderstorms mostly within 180nm of
cold front and 300nm of 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 Wednesday.