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 17 October 2026
Part 1 Warnings
Refer to latest warnings for boundary of affected area and type of weather
system.
Melbourne Storm Force Wind Warning 2.
Melbourne Gale Warning 9.
Part 2 Situation at 171800 UTC
Cold front [1] 26S113E 35S118E to low 1008hPa near 37S115E. Forecast 32S127E
37S127E to low 1004hPa near 41S125E at 180900UTC and then moving east of area.
Cold front [2] 36S090E 50S106E. Forecast 47S120E 50S121E at 181800UTC and
moving south of area thereafter.
Forecast cold front [3] 36S080E 43S084E 50S083E entering area from the west by
180000UTC, then 39S096E 47S111E 50S113E at 190000UTC.
Part 3 Forecast
Refer to latest warnings for details of the area affected.
South of line 36S080E 32S129E, outside of warning areas.
Westerly quarter winds, turning northwesterly quarter within 300nm east of cold
fronts [2] and [3]. Winds turning clockwise within 240nm of low in western
semicircle. Wind speeds 20/33 knots. 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 mostly within 240nm of
cold fronts and 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 08:00 UTC Sunday.
