Australian Government

Bureau of Meteorology


High Seas Forecast 

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IDY10220
SECURITE

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 1100 UTC 21 October 2021

Part 1 Warnings
Melbourne Gale Warning 5.

Part 2 Situation at 0600 UTC
Trough 37S120E 50S123E. East of area by 21800UTC.

Cold front approaching from west, forecast 38S080E 43S088E 50S091E at 221200UTC.

Part 3 Forecast
Refer to latest warnings.

South of line 36S080E 50S126E, outside warning areas:
Northwesterly winds within 720nm east of cold front otherwise westerly quarter
winds.
Wind speeds 20/33 knots. Moderate to rough seas. Moderate to heavy swell.

Within area enclosed by 21S117E 17S110E 22S106E 29S115E :
Southeast quarter winds 20 knots occasionally reaching 30 knots.
Moderate to rough seas. Low to moderate swell.

Remainder:
Winds not exceeding 25 knots. Slight to moderate seas. Low to moderate swell.

Rain areas, scattered showers and isolated thunderstorms within 240nm of front
and 180nm of trough. 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 Thursday.