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 2300 UTC 13 September 2026
Part 1 Warnings
Refer to latest warnings for boundary of affected area and type of weather
system.
Melbourne Storm Force Wind Warning 1.
Melbourne Gale Warning 9.
Melbourne Gale Warning 10.
Part 2 Situation at 131800 UTC
Cold front [1] near 37S080E 44S086E 48S087E to low [1] 965hPa near 49S082E.
Forecast low [1] 962hPa near 50S083E at 132100UTC and south of area thereafter.
Forecast cold front [1] near 43S099E 50S107E at 150000UTC.
Cold front [2] west of area, forecast to enter near 41S080E 47S080E to low [2]
972hPa near 48S078E at 141200UTC. Forecast cold front [2] near 35S084E 45S088E
50S086E to low [2] 968hPa near 50S081E at 150000UTC.
Part 3 Forecast
Refer to latest warnings for details of the area affected.
South of line 30S080E 30S083E 40S107E 38S129E, outside warning areas:
Southwesterly quarter winds, shifting northwesterly quarter within 600nm east
of cold fronts, and clockwise within 540nm of low [1] and 300nm of low [2].
Winds 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 south of line 35S096E 31S108E 35S129E.
Rain areas, scattered showers and isolated thunderstorms mostly within 180nm of
fronts and within 300nm of 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 09:00 UTC Monday.
