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 29 May 2026
Part 1 Warnings
Refer to latest warnings for boundary of affected area and type of weather
system.
Melbourne Gale Warning 5
Part 2 Situation at 291800 UTC
Cold front [1] 23S095E 27S100E to low [1] 1005hPa near 29S099E. Forecast cold
front [1] 26S113E 37S117E to low [1] 977hPa near 38S111E at 310000UTC.
Trough 16S100E 25S107E 26S113E. Forecast trough near 17S106E 22S114E at
310000UTC.
Cold front [2] near 35S100E to low [2] 1005hPa near 46S105E. Forecast cold
front [2] 37S105E to low 1003hPa near 42S106E at 300600UTC and then weakening.
Cold front [3] forecast to enter area from the west near 48S080E 50S083E at
300000UTC, then near 39S080E 50S102E at 310000UTC.
Part 3 Forecast
Refer to latest warnings for details of the area affected.
Within 1200nm north of line 36S129E 44S116E 44S090E, outside warning area:
Southerly quarter winds, shifting northerly within 240nm east of cold front [1]
and turning clockwise within 300nm of low [1]. Wind speeds 20/33 knots.
Moderate to rough seas. Moderate to heavy swell.
West of line 38S080E 50S103E:
Northwesterly quarter winds east of cold front [3], shifting southwesterly
quarter west of cold front [3]. Wind speeds 20/30 knots. Rough seas. Moderate
to heavy swell.
East of line 39S127E 50S124E:
Southwesterly quarter winds 20/30 knots, easing below 25 knots by 300900UTC.
Rough seas. Moderate to heavy swell.
Remainder:
Winds not exceeding 25 knots. Slight to moderate seas. Low to moderate swell.
Rain areas, scattered showers and isolated thunderstorms mainly within 120nm of
fronts, lows, and trough. Heavy at times within 120nm of low [1]. 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 Saturday.
