Western Area High Seas Forecast


High Seas Forecast for Western METAREA 10
WESTERN AREA: 12/30S 90/125E, 30/50S 80/129E

Issued by the Australian Government Bureau of Meteorology
For 24 hours commencing 2300 UTC 1 October 2023

Part 1 Warnings
Melbourne Gale Warning 1.
Melbourne Gale Warning 5.

Part 2 Situation at 1800 UTC
Refer to latest warnings.

Cold front [1] near 34S121E 46S129E, forecast near 32S127E 39S129E at
020000UTC, then exiting east of area.

Cold front [2] near 45S108E 47S111E to low 969hPa near 51S114E, forecast near
40S124E 45S129E at 021800UTC, then moving east of area.

Trough [1] near 43S103E 48S117E 50S118E, forecast near 34S125E 39S129E at
021200UTC, then moving east of area.

Trough [2] near 44S082E 47S081E 50S078E, forecast near 43S113E 50S114E at

Cold front [2] west of the area, forecast entering area near 45S080E 50S086E at
021200UTC, forecast near 40S080E 46S094E 50S102E at 030000UTC.

Part 3 Forecast
Refer to latest warnings.

South of line 38S080E 40S095E 29S106E 29S114E, outside warning areas:
Northwesterly quarter winds east of fronts/troughs, shifting southwesterly
quarter winds west of fronts/troughs, and turning clockwise within 120nm of
low. Wind speeds 25/33 knots. Rough to very rough seas. Moderate to heavy swell.

East of line 19S112E 24S112E:
Southerly quarter winds 20/30 knots. Rough seas. Low to moderate swell,
increasing to moderate to heavy swell south of line 22S112E 22S114E.

Winds not exceeding 25 knots. Moderate to rough seas. Low to moderate swell,
increasing to moderate to heavy swell south of line 25S090E 22S095E 22S112E

Rain areas, scattered showers and isolated thunderstorms mainly within 180nm of
fronts and troughs. 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.


The next routine forecast will be issued at 08:00 UTC Monday.